经典外文翻译(电气工程专业1)

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电气类外文翻译1

FEATURESComputesTrue rms valueAverage rectified valueAbsolute valueProvides 200 mV full-scale input range (larger inputs with input attenuator)High input impedance: 1012 ΩLow input bias current: 25 pA maximumHigh accuracy: ±0.3 mV ± 0.3% of readingRMS conversion with signal crest factors up to 5Wide power supply range: +2.8 V, −3.2 V to±16.5VLow power: 200 mA maximum supply currentBuffered voltage outputNo external trims needed for specified accuracyAD737—an unbuffered voltage output version withchip power-down also availableGENERAL DESCRIPTIONThe AD736 is a low power, precision, monolithic true rms-to-dc converter. It is laser trimmed to provide a maximum error of ±0.3 mV ± 0.3% of reading with sine wave inputs. Furthermore, it maintains high accuracy while measuring a wide range of input waveforms, including variable duty-cycle pulses and triac (phase)-controlled sine waves. The low cost and small size of this converter make it suitable for upgrading the performance of non-rms precision rectifiers in many applications. Compared to these circuits, the AD736 offers higher accuracy at an equal or lower cost.The AD736 can compute the rms value of both ac and dc input voltages. It can also be operated as an ac-coupled device by adding one external capacitor. In this mode, the AD736 can resolve input signal levels of 100 μVrms or less, despite variations in temperature or supply voltage. High accuracy is also maintained for input waveforms with crest factors of 1 to 3. In addition, crest factors as high as 5 can be measured (introducing only 2.5% additional error) at the 200 mV full-scale input level.The AD736 has its own output buffer amplifier, thereby pro-viding a great deal of design flexibility. Requiring only 200 μA of power supply current, the AD736 is optimized for use in portable multimeters and other battery-powered applications.The AD736 allows the choice of two signal input terminals: a high impedance FET input (1012 Ω) that directly interfaces with High-Z input attenuators and a low impedance input (8 kΩ) that allows the measurement of 300 mV input levels whileoperating from the minimum power supply voltage of +2.8 V, −3.2 V. The tw o inputs can be used either single ended or differentially.The AD736 has a 1% reading error bandwidth that exceeds 10 kHz for the input amplitudes from 20 mV rms to 200 mV rms while consuming only 1 mW.The AD736 is available in four performance grades. The AD736J and AD736K grades are rated over the 0°C to +70°C and −20°C to +85°C commercial temperature ranges.The AD736A and AD736B grades are rated over the −40°C to +85°C industrial temperature range. The AD736 is available in three low cost, 8-lead packages: PDIP, SOIC, and CERDIP.PRODUCT HIGHLIGHTS1. The AD736 is capable of computing the average rectified value, absolute value, or true rms value of various input signals.2. Only one external component, an averaging capacitor, is required for the AD736 to perform true rms measurement.3. The low power consumption of 1 mW makes the AD736 suitable for many battery-powered applications.4. A high input impedance of 1012 Ω eliminates the need for an external buffer when interfacing with input attenuators.5. A low impedance input is available for those applications that require an input signal up to 300 mV rms operating from low power supply voltages. SPECIFICATIONSAt 25°C ± 5 V supplies, ac-coupled with 1 kHz sine wave input applied, unless otherwise noted. Specifications in bold are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.THEORY OF OPERATIONAs shown by Figure 18, the AD736 has five functional subsections: the input amplifier, full-wave rectifier (FWR), rms core, output amplifier, and bias section. The FET input amplifier allows both a high impedance, buffered input (Pin 2) and a low impedance, wide dynamic range input (Pin 1). The high impedance input, with its low input bias current, is well suited for use with high impedance input attenuators. The output of the input amplifier drives a full-wave precision rectifier that, in turn, drives the rms core. The essential rms operations of squaring, averaging, and square rooting are performed in the core using an external averaging capacitor, C AV. Without C AV, the rectified input signal travels through the core unprocessed, as is done with the average responding connection (see Figure 19).A final subsection, an output amplifier, buffers the output from the core and allows optional low-pass filtering to be performed via the external capacitor, CF, which is connected across the feedback path of the amplifier. In the average responding connection, this is where all of the averaging is carried out. In the rms circuit, this additional filtering stage helps reduce any output ripple that was not removed by the averaging capacitor, C AV.TYPES OF AC MEASUREMENTThe AD736 is capable of measuring ac signals by operating as either an average responding converter or a true rms-to-dc converter. As its name implies, an averageresponding converter computes the average absolute value of an ac (or ac and dc) voltage or current by full-wave rectifying and low-pass filtering the input signal; this approximates the average. The resulting output, a dc average level, is scaled byadding (or reducing) gain; this scale factor converts the dc average reading to an rms equivalent value for the waveform being measured. For example, the average absolute value of a sine wave voltage is 0.636 times V PEAK; the corresponding rms value is 0.707 ×V PEAK. Therefore, for sine wave voltages, the required scale factor is 1.11 (0.707/0.636).In contrast to measuring the average value, true rms measurement is a universal language among waveforms, allowing the magnitudes of all types of voltage (or current) waveforms to be compared to one another and to dc. RMS is a direct measure of the power or heating value of an ac voltage compared to that of a dc voltage; an ac signal of 1 V rms produces the same amount of heat in a resistor as a 1 V dc signal.Mathematically, the rms value of a voltage is defined (using a simplified equation) asThis involves squaring the signal, taking the average, and then obtaining the square root. True rms converters are smart rectifiers; they provide an accurate rms reading regardless of the type of waveform being measured. However, average responding converters can exhibit very high errors when their input signals deviate from their precalibrated waveform; the magnitude of the error depends on the type of waveform being measured. For example, if an average responding converter is calibrated to measure the rms value of sine wave voltages and then is used to measure either symmetrical square waves or dc voltages, the converter has a computational error 11% (of reading) higher than the true rms value (see Table 4).CALCULATING SETTLING TIME USING FIGURE 16Figure 16 can be used to closely approximate the time required for the AD736 to settle when its input level is reduced in amplitude. The net time required for the rms converter to settle is the difference between two times extracted from the graph (the initial time minus the final settling time). As an example, consider the following conditions: a 33 μF averaging capacitor, a 100 mV initial rms input level, and a final (reduced) 1 mV input level. From Figure 16, the initial settling time (where the 100 mV l ine intersects the 33 μF line) is approximately 80 ms.The settling time corresponding to the new or final input level of 1 mV is approximately 8 seconds. Therefore, the net time for the circuit to settle to its new value is 8 seconds minus 80 ms, which is 7.92 seconds. Note that because of the smooth decay characteristic inherent with a capacitor/diode combination, this is the total settling time to the final value (that is, not the settling time to 1%, 0.1%, and so on, of the final value). In addition, this graph provides the worst-case settling time because the AD736 settles very quickly with increasing input levels.RMS MEASUREMENT—CHOOSING THE OPTIMUM VALUE FOR CAV Because the external averaging capacitor, C AV, holds the rectified input signal during rms computation, its value directly affects the accuracy of the rms measurement, especially at low frequencies. Furthermore, because the averaging capacitor appears across a diode in the rms core, the averaging time constant increases exponentially as the input signal is reduced. This means that as the input level decreases, errors due to nonideal averaging decrease, and the time required for the circuit to settle to the new rms level increases. Therefore, lower input levels allow the circuit to perform better (due to increased averaging) but increase the waiting time between measurements. Obviously, when selecting C AV, a trade-off between computational accuracy and settling time is required.RAPID SETTLING TIMES VIA THE AVERAGE RESPONDING CONNECTION Because the average responding connection shown in Figure 19 does not use the C AV averaging capacitor, its settling time does not vary with the input signal level. It is determined solely by the RC time constant of CF and the internal 8 kΩ resistor in the ou tput amplifier’s feedback path.DC ERROR, OUTPUT RIPPLE, AND AVERAGING ERRORFigure 20 shows the typical output waveform of the AD736 with a sine wave input applied. As with all real-world devices, the ideal output of VOUT = VIN is never achieved exactly. Instead, the output contains both a dc and an ac error component. As shown in Figure 20, the dc error is the difference between the average of the output signal (when all the ripple in the output is removed by external filtering) and the ideal dc output. The dc error component is therefore set solely by the value of the averaging capacitor used. No amount of post filtering (that is, using a very large CF) allows the output voltage to equal its ideal value. The ac error component, an output ripple, can be easily removed by using a large enough post filtering capacitor, CF. In most cases, the combined magnitudes of both the dc and ac error components need to be considered when selecting appropriate values for Capacitor CAV and Capacitor CF. This combined error, representing the maximum uncertainty of the measurement, is termed the averaging error and is equal to the peak value of the output ripple plus the dc error.As the input frequency increases, both error components decrease rapidly; if the input frequency doubles, the dc error and ripple reduce to one quarter and one half of their original values, respectively, and rapidly become insignificant.AC MEASUREMENT ACCURACY AND CREST FACTORThe crest factor of the input waveform is often overlooked when determining the accuracy of an ac measurement. Crest factor is defined as the ratio of the peak signal amplitude to the rms amplitude (crest factor = V PEAK/V rms). Many common waveforms, such as sine and triangle waves, have relatively low crest factors (≤2). Other waveforms, such as low duty-cycle pulse trains and SCR waveforms, have high crest factors. These types of waveforms require a long averaging time constant (to average out the long periods between pulses). Figure 8 shows the additional error vs. the crest factor of the AD736 for various values of C AV.APPLICATIONSCONNECTING THE INPUTThe inputs of the AD736 resemble an op amp, with noninverting and inverting inputs. The input stages are JFETs accessible at Pin 1 and Pin 2. Designated as the high impedance input, Pin 2 is connected directly to a JFET gate. Pin 1 is the low impedance input because of the scaling resistor connected to the gate of the second JFET. This gate-resistor junction is not externally accessible and is servo-edto the voltage level of the gate of the first JFET, as in a classic feedback circuit. This action results in the typical 8 kΩ input impedance referred to ground or reference level. This input structure provides four input configurations as shown in Figure 21, Figure 22, Figure 23, and Figure 24. Figure 21 and Figure 22 show the high impedance configurations, and Figure 23 and Figure 24 show the low impedance connections used to extend the input voltage range.中文翻译运算真有效值RMS平均整流值绝对值提供满量程200mV范围内输入电压(较大输入的输入衰减器)高输入阻抗:1012Ω低的输入偏置电流:25 pA最大值精度高:±0.3 mV±0.3%的读入波顶因数的有效值转换提升到5宽供电范围:+ 2.8V,−3.2V到16.5 V低功率:最大200mA就可正常运行缓冲输出电压没有外部协议需要规定准确性AD737-是一个芯片断电也可使用的非缓冲电压输出的版本总体描述AD736是一个低功率、精密、真有效值单块集成电路的直流转换器。

电气工程及其自动化专业外文文献英文文献外文翻译方面

1、外文原文（复印件）A: Fundamentals of Single-chip MicrocomputerT h e sin gle -ch ip mi c ro co m p u t e r is t h e cu lm in at io n of b ot h t h e d e ve lo p me nt of t h e d ig ita l co m p u t e r a n d t h e i nte g rated c ircu it a rgu ab l y t h e to w mo st s ign if i cant i nve nt i o n s of t h e 20t h c e nt u ry [1].T h ese to w t yp e s of arch ite ct u re are fo u n d in s in gle -ch ip m i cro co m p u te r. S o m e e mp l oy t h e sp l it p ro gra m /d at a m e m o r y of t h e H a r va rd arch ite ct u re , s h o wn in -5A , ot h e rs fo l lo w t h e p h i lo so p hy, wid e l y ad a p ted fo r ge n e ral -p u rp o se co m p u te rs an d m i cro p ro ce ss o rs , of m a kin g n o l o g i ca l d i st in ct i o n b et we e n p ro gra m an d d ata m e m o r y as in t h e P rin c eto n a rch ite ct u re , sh o wn in -5A.In ge n e ra l te r m s a s in g le -ch ip m ic ro co m p u t e r is ch a ra cte r ized b y t h e in co r p o rat io n of all t h e u n its of a co mp u te r into a s in gle d e vi ce , as s h o w n in F i g3-5A-3.-5A-1A Harvard type-5A. A conventional Princeton computerProgrammemory Datamemory CPU Input& Output unitmemoryCPU Input& Output unitResetInterruptsPowerFig3-5A-3. Principal features of a microcomputerRead only memory (ROM).RO M is u su a l l y fo r t h e p e r m an e nt , n o n -vo lat i le sto rage of an ap p l i cat io n s p ro g ram .M a ny m i c ro co m p u te rs a n d m i cro co nt ro l le rs are inte n d ed fo r h i gh -vo lu m e ap p l i cat io n s a n d h e n ce t h e e co n o m i cal man u fa c t u re of t h e d e vi ces re q u ires t h at t h e co nt e nts of t h e p ro gra m me mo r y b e co mm i ed p e r m a n e nt l y d u r in g t h e m a n u fa ct u re of c h ip s . C lea rl y, t h i s imp l ies a r i go ro u s ap p ro a ch to ROM co d e d e ve lo p m e nt s in ce ch an ges can n o t b e mad e af te r m an u fa ct u re .T h i s d e ve l o p m e nt p ro ces s m ay i nvo l ve e mu l at i o n u sin g a so p h ist icated d e ve lo p m e nt syste m wit h a h ard wa re e mu l at i o n capab i l it y as we ll as t h e u s e of p o we rf u l sof t war e to o l s.So m e m an u fa ct u re rs p ro vi d e ad d it i o n a l ROM o p t io n s b y in clu d in g in t h e i r ran ge d e v ic es w it h (o r inte n d ed fo r u s e wit h ) u se r p ro g ram m a b le m e mo r y. T h e s im p lest of t h e se i s u su a l l y d e v i ce wh i ch can o p e rat e in a m i cro p ro ce s so r mo d e b y u s in g s o m e of t h e in p u t /o u t p u t l in es as an ad d res s a n d d ata b u s fo r a cc es sin g exte rn a l m e m o r y. T h is t yp e o f d e vi ce can b e h ave f u n ct i o n al l y as t h e s in gle ch ip m i cro co m p u t e r f ro m wh i ch it i s d e ri ved a lb e it wit h re st r icted I/O an d a m o d if ied exte rn a l c ircu it. T h e u s e of t h e se RO M le ss d e vi ces i s co mmo n e ve n in p ro d u ct io n circu i ts wh e re t h e vo lu m e d o e s n ot ju st if y t h e d e ve lo p m e nt co sts of cu sto m o n -ch ip ROM [2];t h e re ca n st i ll b e a si gn if i cant sav in g in I/O an d o t h e r ch ip s co m pared to a External Timing components System clock Timer/ Counter Serial I/O Prarallel I/O RAM ROMCPUco nve nt io n al m i c ro p ro ces so r b ased circ u it. M o re exa ct re p l a ce m e nt fo rRO M d e v ice s can b e o b tain ed in t h e fo rm of va ria nts w it h 'p i g g y-b a c k'E P ROM(E rasab le p ro gramm ab le ROM )s o cket s o r d e v ice s w it h E P ROMin stead of ROM 。

电气工程的外文文献(及翻译)

电气工程的外文文献(及翻译)文献一：Electric power consumption prediction model based on grey theory optimized by genetic algorithms本文介绍了一种基于混合灰色理论与遗传算法优化的电力消耗预测模型。

该模型使用时间序列数据来建立模型，并使用灰色理论来解决数据的不确定性问题。

通过遗传算法的优化，模型能够更好地预测电力消耗，并取得了优异的预测结果。

此模型可以在大规模电力网络中使用，并具有较高的可行性和可靠性。

文献二：Intelligent control for energy-efficient operation of electric motors本文研究了一种智能控制方法，用于电动机的节能运行。

该方法提供了一种更高效的控制策略，使电动机能够在不同负载条件下以较低的功率运行。

该智能控制使用模糊逻辑方法来确定最佳的控制参数，并使用遗传算法来优化参数。

实验结果表明，该智能控制方法可以显著降低电动机的能耗，节省电能。

文献三：Fault diagnosis system for power transformers based on dissolved gas analysis本文介绍了一种基于溶解气体分析的电力变压器故障诊断系统。

通过对变压器油中的气体样品进行分析，可以检测和诊断变压器内部存在的故障类型。

该系统使用人工神经网络模型来对气体分析数据进行处理和分类。

实验结果表明，该系统可以准确地检测和诊断变压器的故障，并有助于实现有效的维护和管理。

文献四：Power quality improvement using series active filter based on iterative learning control technique本文研究了一种基于迭代研究控制技术的串联有源滤波器用于电能质量改善的方法。

电气工程及其自动化英语英译汉

1```In the generator mode ,it,s operating speed isslightly higger than it,s synchronous speed and ie needs magnetizing revctive pover form the symtem that it is connected to in order to suuply pover .在发电方式下他的工作速度比同步转速稍高些，并了解供电力，他需要他所连接的系统吸收磁化无功功率。

2```in the barking mode of operyetion ,a three –phase indection motor running at a steady –speedcan be brought to a quick stop by interchanging two of stator leads感应电机运行电动状态时，其转速低于同步转速，运行在发电状态时，其转速高于同步转速，这就需要从与之间相连的系统电源提供励磁的无功功率。

3```obviously ,dc machine applications are very significant,but the advantages of the dc machinemmust be weighed against its greatr initial investment cost and the maintenance problems associated with its brush-commutator system..同步是指状态运行时点击以恒定的转速和频率运行。

4```with a cylindyical rotor the reluctance of the magnetic circuit of the field is independent of itsactual diretion and relative to the direct axis.圆柱形转子的磁场磁路的磁阻与直轴有关，而与磁场的实际方向无关。

经典电气工程专业英语翻译(外文翻译)

Session M1E Work in Progress - Integration of Hands-On- Laboratory Experience of Power Electronics and Renewable Energy ApplicationsEduardo I. Ortiz-Rivera, Member IEEE, and Marcel J. Castro-Sitiriche, Member IEEEUniversity of Puerto Rico-Mayagüez, Eduardo.Ortiz@, Marcel.Castro@Abstract– This work-in-progress presents the research and educational activities designed to create a synergy related to aspects of the power electronics laboratory experience using alternative energy, and dissemination of knowledge related to the impact of renewable energy as part of the solution to achieve a sustainable future & economy for the society, as well as to the national security based on the reality and needs of Puerto Rico. The work-in-progress is focused on two areas: 1) Integration of hands-on laboratory experiences with undergraduate power electronics courses and renewable energy applications 2) Undergraduate research experience on power electronics and systems with selected power electronics topologies for renewable applications with a special focus to the reality of a geographical region (for our case Puerto Rico). Finally, it’s also intended with this paper to create an interest in other academic institutions about the importance and need of an electrical engineering program which should include power electronics, renewable energy, and lab experience as part of their curriculum for the benefit of their countries.Index Terms - Educational technology, laboratories, power electronics, solar energy, thermoelectric energy.I NTRODUCTIONThe current changes in the worldwide markets are making a large impact in our daily lives. The cost of oil is rising and the reserves are decreasing every day. Also, dramatic demographic changes are impacting the feasibility of the electric infrastructure and eventually the economic future of the industry. As well, the reduction of CO2 emissions plays an important role in the production of electric energy. These are some of the reasons that many countries are looking to integrate renewable energy sources as part of their public policy to produce electricity in a sustainable way [1].But any energy plan which involves changes to the electrical infrastructure and its public policy would require a well trained workforce with special knowledge in traditional power systems, power electronics topologies, and available types of renewable energy sources. For any country, to have a well trained engineering force, their academic institutions play a critical role in their development. It is why today for any regular student (and potential employer) is not sufficient to have theoretical courses; but also it is necessary some practical experience! As part of this effort, the authors of this work has incorporated a strategy based on the integration of hands on laboratory experience to attract and train properly ECE students in the areas of power electronics (PELS), renewable energy and undergraduate research.W HY H ANDS O N E XPERIENCE IS SO I MPORTANT?It is well known that good laboratory experiences increase the interest of students in an area by connecting the theory to practice facilitating an active learning process [2]. An interesting strategy have been developing at University of Puerto Rico in Mayagüez (UPRM’s) ECE Departm ent to have a well trained engineering force with a focus on renewable energy and its related aspects, specifically by the Mathematical Modeling and Control of Renewable Energy for the Advance in the Technology and Education(M inds2CREATE) Research Team lead by Dr. Eduardo I. Ortiz-Rivera. The integration of theoretical courses with hands on laboratory experience specifically in power electronics and renewable energy applications has been the main focal point for the M inds2CREATE Research Team [3]. The main objective of this strategy is essentially to prepare the best engineering workforce to satisfy the required energy needs of a country or a region without sacrifice its future sustainability. The presented laboratory experiences have a potential to reach 100 students a year in Power Electronics basic undergraduate course, 60 undergraduate students in advance courses in addition to those doing undergraduate research. This experience have a tremendous impact in the large amount of Electrical Engineering students that graduate every year from concentrations related to power electronics (around 100 students per year) at UPRM.At UPRM, the M inds2CREATE Research Team has been preparing ECE students in the areas of renewable energy and power electronics for power system applications based on the geographical reality of Puerto Rico. To obtain the theoretical expertise, the ECE students interested in these areas, are required to take a series of courses with focus on renewable energy and power electronics. Figure 1 illustrate the required ECE courses for the under level. Each course is designed with the fundamental knowledge required for a proper understanding of power electronics and its application to renewable energy.A CTIVITIES FOR H ANDS-O N-L ABORATORY E XPERIENCETo have the proper courses based on the reality of Puerto Rico, it is not enough to obtain a proper education on power electronic and renewable energy!Session M1E Experimental Set-upFIGURE 1PELS U NDERGRADUATE O PTION WITH FOCUS ON R ENEWABLE E NERGY. That’s why, the integration of a hands on laboratory experiences to these courses is fundamental to attract new students and increase their interest to do research in engineering. In the long run, these steps are the ones that provide the base for advance graduate education. The activities related to hands on laboratory experience are incorporated with other educational components such as theory, simulations, and real-life engineering problems offered in the courses. An example of the experiments for the students hands-on-experience is decribed:1) Electrical characterization of proton exchange fuel cells For this experimental work, the student will use a low power PEM fuel cell interconnected with a dc-dc converter and a variable resistive load. It is required that the student should learn how to use a PEM fuel cell, design the required components for the dc-dc converter, simulate and construct a prototype to control the power and current by a fuel cell. 2) Mathematical modeling of PV modules for MPPT control This experiment involve concepts related to optimal control and the characterization of PVM’s using nonlinear models. For this task the student will learn how to understand a PV datasheet and to use this data to charaterize a solar panel. The theoretical values will be compared with the PVM experimental values using a software tool previsouly designed [1]. Finally, the student will connect the PVM’s toa boost converter to extract the PVM’s maximum power.3) Desing and prototype of a three phase Z-Source inverter For the realization of this experiment, it is required that the student should understand concepts like three phase systems, Pulse-Width-Modulation, Z-source, and inverters. To design the inverter, the student is required to use software tools like PSIM, SABER, Matlab, etc. At the Power Electronics Systems (PELS) lab, the students will construct a prototypeFIGURE 2E LECTRICAL C HARACTERIZATION AND C ONTROL OF PEM F UEL C ELL.will appeal to a wide range of areas at the University of Puerto Rico. Some of the advantages to study different types of renewable energies in Puerto Rico are excellent tropical weather conditions, constant wind conditions in the mountain regions, year-round sunny conditions, and all of them in a single place. Finally, this project has been successful given that Puerto Rico has an excellent location in the Caribbean, active research of new technologies related to renewable energy, an excellent place for the education of engineers, and interest of the students for business opportunities in the island as future entrepreneurs.P ROJECT S TATUSThe research group has successfully disseminated the work through 5 publications in various journals and conferences. Twelve undergraduate students have been doing hands-on laboratory based research during the past year. Currently, we are bringing together representatives from the various industries related to renewable energy to identify specific workforce skills. Specifically, we are in the process of convening an advisory board group charged with refining and implementing the process for involving a wider collaboration between the industry and the academy at PR. This board will make recommendations to the group related to areas of need, potential for innovation, funding sources and crucial long term partnerships.A CKNOWLEDGMENTThe authors gratefully acknowledge the contributions of all the members that belong to the Mathematical Modeling and Control of Renewable Energies for Advance Technology & Education (M inds2CREATE) Research Team at UPRM.including topology selection, heat sink, insulated-gate bipolar transistor (IGBT) selection & transformer/inductor construction [3].E XPECTEDF UTURE FOR THE S TUDENTS AND P UERTO R ICOIt is expected that at the end of the student academic career, the student will have a breadth of relevant power electronic topologies useful for renewable sources, knowledge in the characterization of the available renewable energies in the geographic region of Puerto Rico, familiarity about public policy related to energy and the agencies for their use & regulation with their societal/economical issues, all of whichM1E-2进行中的工程——电力电子技术和可再生能源实验课程的一体化摘要这个正在进行的工作展现了研究工作和教育活动在利用可替代能源的电力电子实验室和可再生能源作为未来经济和社会获得可持续发展的解决方案和基于波多黎各国家实际需要的重要影响的散布推广。

电气工程及其自动化专业英语

• With time-invariant currents and voltages, the magnetic and electric fields of the associated electric plant are also timeinvariant. This is the reason why no e.m.f.s of self- (or mutual-)induction（自感或互感）appear in D.C. circuits, nor are there （倒装结构）any displacement currents （位移电流）in the dielectric surrounding the conductors(导体周围的电介质）.
time-invariant 时不变的
self-(or mutual-)induction 自（互）感
displacement current 位移电流 conductance 电导
voltage drop 电压降 volt-ampere characteristics 伏安特性
metal-filament lamp 金属丝灯泡
seen, increase of current from zero to
I≈I1 causes the terminal voltage of the source to decrease linearly
V12=V=E－VS=E－RSI
Fig.1.3
In other words, the voltage drop VS across the source resistance rises in proportion to the current. This goes on until

电气工程专业英语词书

电气工程专业英语词书- "Electrical Engineering Dictionary" by CRC Press：这本词典是电气工程领域的权威工具书，包含了丰富的电气工程专业词汇，解释详细且易于理解。

- "IEEE ElectricalGlossary" by Institute of Electrical and Electronics Engineers (IEEE)：IEEE 是电气工程领域的知名组织，这本词汇书涵盖了广泛的电气工程术语，对于理解电气工程领域的标准和文献非常有帮助。

- "Dictionary of Electrical Engineering" by Oxford University Press：这本词典是电气工程领域的经典之作，包含了大量的专业词汇和定义，对于学习和研究电气工程的学生和专业人士都非常有用。

- "McGraw-Hill Dictionary of Electrical and Electronic Engineering" by McGraw-Hill Education：这本词书提供了全面的电气工程和电子工程词汇，解释简洁明了，适合学生和工程师使用。

- "Technical English for Electrical Engineering" by K. S. Narendra and P. C. Sen：这本书不仅涵盖了电气工程专业词汇，还包括了相关的技术英语表达和语法，有助于提高在电气工程领域的英语沟通能力。

这些词书都具有广泛的认可度和良好的口碑，可以根据自己的需求和偏好选择适合的词书进行学习和参考。

此外，利用在线资源和专业数据库也是扩展电气工程专业词汇的有效途径。

电气工程专业常用英语

电力系统power system 发电机generator 励磁excitation励磁器excitor 电压voltage 电流current升压变压器step-up transformer 母线bus 变压器transformer空载损耗：no-load loss 铁损：iron loss 铜损：copper loss空载电流：no-load current 无功损耗：reactive loss 有功损耗：active loss输电系统power transmission system高压侧high side 输电线transmission line高压: high voltage 低压：low voltage 中压：middle voltage功角稳定angle stability 稳定stability 电压稳定voltage stability暂态稳定transient stability 电厂power plant 能量输送power transfer交流AC 直流DC 电网power system落点drop point 开关站switch station 调节regulation高抗high voltage shunt reactor 并列的：apposable 裕度margin故障fault 三相故障three phase fault 分接头：tap切机generator triping 高顶值high limited value 静态static (state)动态dynamic (state) 机端电压控制A VR 电抗reactance电阻resistance 功角power angle 有功（功率）active power电容器：Capacitor 电抗器：Reactor 断路器：Breaker电动机：motor 功率因数：power-factor 定子：stator阻抗电压：阻抗：impedance 功角：power-angle 电压等级：voltage grade有功负载: active load/PLoad 无功负载：reactive load 档位：tap position电阻：resistor 电抗：reactance 电导：conductance电纳：susceptance 上限:upper limit 下限：lower limit正序阻抗：positive sequence impedance 负序阻抗：negative sequence impedance零序阻抗：zero sequence impedance无功（功率）reactive power 功率因数power factor 无功电流reactive current斜率slope 额定rating 变比ratio参考值reference value 电压互感器PT 分接头tap仿真分析simulation analysis 下降率droop rate 传递函数transfer function框图block diagram 受端receive-side 同步synchronization保护断路器circuit breaker 摇摆swing 阻尼damping无刷直流电机：Brusless DC motor 刀闸(隔离开关)：Isolator 机端generator terminal 变电站transformer substation永磁同步电机：Permanent-magnet Synchronism Motor异步电机：Asynchronous Motor三绕组变压器：three-column transformer ThrClnTrans双绕组变压器：double-column transformer DblClmnTrans固定串联电容补偿fixed series capacitor compensation双回同杆并架double-circuit lines on the same tower单机无穷大系统one machine - infinity bus system励磁电流：magnetizing current 补偿度degree of compensationElectromagnetic fields 电磁场失去同步loss of synchronization装机容量installed capacity 无功补偿reactive power compensation故障切除时间fault clearing time 极限切除时间critical clearing time强行励磁reinforced excitation 并联电容器：shunt capacitor下降特性droop characteristics 线路补偿器LDC(line drop compensation) 电机学Electrical Machinery 自动控制理论Automatic Control Theory电磁场Electromagnetic Field微机原理Principle of Microcomputer电工学Electrotechnics Principle of circuits 电路原理Electrical Machinery 电机学变比ratio传感器sensor。

电气工程及其自动化专业英语苏小林

电气工程及其自动化专业英语-ZOE Su1. Introduction电气工程及其自动化( Electrical Engineering and Automation)是一个广泛应用于各个领域的学科，它涵盖了电力系统、电子电路、自动控制、仪器测量等多个方面。

在学习和研究这门学科时，熟悉相关的英语专业术语是非常重要的。

本文档将介绍一些电气工程及其自动化专业中常用的英语词汇和短语。

2. Electrical Engineering 英语词汇2.1 电力系统•Power system: 电力系统•Power generation: 发电•Power transmission: 输电•Power distribution: 配电•Power plant: 发电厂•Substation: 变电站•Transformer: 变压器•Generator: 发电机•Transmission line: 输电线路•Circuit breaker: 断路器•Load: 负载2.2 电子电路•Circuit: 电路•Resistor: 电阻器•Capacitor: 电容器•Inductor: 电感器•Diode: 二极管•Transistor: 晶体管•Integrated circuit (IC): 集成电路•Printed circuit board (PCB): 印制电路板•Voltage: 电压•Current: 电流2.3 自动控制•Control system: 控制系统•Feedback: 反馈•PID controller: 比例积分微分（PID）控制器•Sensor: 传感器•Actuator: 执行器•Control signal: 控制信号•Closed-loop control: 闭环控制•Open-loop control: 开环控制2.4 仪器测量•Instrumentation: 仪器测量•Measurement: 测量•Accuracy: 精度•Calibration: 校准•Sensor: 传感器•Meter: 仪表•Voltmeter: 电压计•Ammeter: 电流计•Oscilloscope: 示波器•Multimeter: 电表3. Electrical Engineering 英语短语3.1 电力系统•Power blackout: 停电•Grid integration: 网络集成•Load shedding: 负荷调节•Power factor: 功率因数•Power outage: 断电•Voltage regulation: 电压调节•Renewable energy: 可再生能源•Power factor correction: 功率因数校正•Power supply: 电源3.2 电子电路•Logic gate: 逻辑门•Circuit design: 电路设计•Printed circuit board (PCB) design: 印刷电路板设计•Analog circuit: 模拟电路•Digital circuit: 数字电路•Circuit analysis: 电路分析•Circuit simulation: 电路仿真•Circuit board layout: 电路板布局•Electronic component: 电子元件•Circuit diagram: 电路图3.3 自动控制•Automatic control: 自动控制•Control loop: 控制回路•Feedback loop: 反馈回路•Control system design: 控制系统设计•Proportional control: 比例控制•Integral control: 积分控制•Derivative control: 微分控制•Control algorithm: 控制算法•System response: 系统响应•Setpoint: 设定值3.4 仪器测量•Measurement uncertainty: 测量不确定性•Precision measurement: 精密测量•Measurement accuracy: 测量准确性•Metrology: 计量学•Calibration procedure: 校准程序•Test equipment: 测试设备•Instrument calibration: 仪器校准•Measurement range: 测量范围•Measurement error: 测量误差•Data acquisition: 数据采集4. 总结掌握电气工程及其自动化专业中的英语词汇和短语是很有必要的，它可以帮助我们更好地理解和交流相关知识。

电气工程及其自动化专业英语课文翻译

unit1 taxe A 电力变压器的结构和原理在许多能量转换系统中，变压器是一个不了缺少的原件。

它使得在经济的发电机所产生电能并以最经历的传输电压传输电能，同时对于特定的使用者合适的电压使用电能成为可能。

变压器同样广泛的应用于低功率低电流的电子电路和控制电路中，来执行像匹配电源组抗和负载以求得最大的传输效率。

隔离一个电路与另一个电路在两个电路之间隔离直流电而保证交流电继续通道的功能。

在本质上，变压器是一个由两个或多个绕组通过相互的磁通耦合而组成的，如果这其中的一个绕组，原边连接到交流电压源将产生交流磁通它的幅值决定于原边的电压所提供的电压频率及匝数。

感应磁通将与其他绕组交链，在副边中将感应出一个电压其幅值将取决于副边的匝数及感应磁通量和频率。

通过使原副边匝数比例适应，任何所期望的电压比例或转换比例都可以得到。

变压器工作的本质仅要求存在与两个绕组相交链的时变的感应磁通。

这样的作用也可以发生在通过空气耦合的两组绕组中，但用铁心或其他铁磁材料可以使绕组之间的耦合作用增强，因为一大部分磁通被限制在与两个绕组交链的高磁导率的路径中。

这种变压器通常被称作为心式变压器。

大部分变压器都是这种类型。

以下的讨论几乎全部围绕心事变压器。

为减少铁心中的涡流所产生的损耗，磁路通常由一叠薄的叠片所组成。

如图1.1所示两种常见的结构形式用示意图表示出来。

芯式变压器的绕组绕在两个矩形铁心柱上，壳式变压器的绕组绕在三个铁心柱中间的那个铁心柱上，。

0.14毫米厚的硅钢片通常被用于在低频率低于几百Hz下运行的变压器中，硅钢片具有价格低铁心损耗小，在高磁通密度下，磁导率高的理想性能，能用做高频率低能耗的标准的通讯电路中的小型变压器的铁心是由被称为铁氧体的粉末压缩制成的铁磁合金所构成的。

在这些结构中，大部分的磁通被限制在固定的铁心中与两个绕组相交链。

绕组也产生多余的磁通，像漏磁通，只经过一个绕组和另外的绕组不相交链。

虽然漏磁通只是所有磁通的一小部分，但它在决定变压器的运行情况中起着重要的作用。

电气化专业外文资料翻译

英文原文：Control theory and electricity grids theory is the electrical engineering and automation major foundation, the power electronic technology, computer technology is its main technical means, also contains a systems analysis, system design, system development and system management and decision-making, etc research field.The professional and some feature that weak electricity combining, electrical and electronic technology to combine together, software and hardware, combining with interdisciplinary nature, electric power, electronics, control, computer multi-discipline, give graduates have strong adaptability, is "the broad caliber" professional.Electrical engineering and automation to the examinee has a strong attraction, belongs to the popular major, the university entrance exam to admit fractional line often than other professional direction high, killing this lot are the main reasons:(1) the employment easy, working environment is good, the high income;(2) the name of students listen, professional content attractive;Social propaganda and public opinion guide to its advantage.The professional direction has a very good prospects for development, the research results easier to reality and product shifts, with considerable benefits.His creative thinking attracts many examinee, here is really good place to display their talent.But given the form of domestic now, examinee in enter oneself for an examination the professional when should pay attention to the following two points: (1) fully consider their interests.Maybe he could not for the sense of direction interested, but many people say, so oneself "interest".The following development is very harmful. After all, the interest is the best teacher.(2) measure their comprehensive quality.Electrical engineering and automation need strong knowledge of mathematics, physics foundation, strong language comprehensive ability, can grasp and flexible for future use professional knowledge for preparation.The professional direction of the personnel needs, but although large selection of many people, if not very strong comprehensive quality, it is difficult to get out in the crowd, outstanding achievements.Perhaps this for many bosom the examinee of lofty ambition it is unacceptable.Of course, here said the two also and whether it is feasible to the pursuit of individual students about, if a person is limited to pursuit a better job, this major is a good choice.But, if want to make breakthrough technology innovation or based on personal contribution strength as well as hard work, on the basis of the pie is never unprovoked fell from the sky.Because this major research scope, the application prospect of professional quality, graduates are relatively high, therefore employment situation very well.Our country is very need the professional direction of the talent, small to a family, to the whole society, are inseparable from these professional work. Normally, students can choose state-owned quality technical supervision department, research institute, industrial mining enterprises etc;Can also be some foreign investment, private enterprise, treatment of course is considerable.If it is strong enough, and students' ability in during study accumulated better research achievements, can completely his business, rush piece of the sky belongs.It should bepointed out that, because in the professional direction of the overseas research, so bringing preceded us if they want to have further development, establish themselves in the leading position in domestic this direction, to go abroad for further study is a good choice.中文译文：控制理论和电力网理论是电气工程及其自动化专业的基础，电力电子技术，计算机技术是它的主要技术手段，也包含了系统分析，系统设计，系统开发以及系统管理与决策等研究领域。

电气工程专业英语翻译1

第六章Electric Power Systems 电力系统Section 1 Introduction 第一节介绍The modern society depends on the electricity supply more heavily than ever before. 现代社会的电力供应依赖于更多地比以往任何时候。

It can not be imagined what the world should be if the electricity supply were interrupted all over the world. 它无法想象的世界应该是什么，如果电力供应中断了世界各地。

Electric power systems (or electric energy systems), providing electricity to the modern society, have become indispensable components of the industrial world. 电力系统（或电力能源系统），提供电力到现代社会，已成为不可缺少的组成部分产业界的。

The first complete electric power system (comprising a generator, cable, fuse, meter, and loads) was built by Thomas Edison – the historic Pearl Street Station in New York City which began operation in September 1882. 第一个完整的电力系统（包括发电机，电缆，熔断器，计量，并加载）的托马斯爱迪生所建-站纽约市珍珠街的历史始于1882年9月运作。

This was a DC system consisting of a steam-engine-driven DC generator supplying power to 59 customers within an area roughly 1.5 km in radius. The load, which consisted entirely of incandescent lamps, was supplied at 110 V through an underground cable system. 这是一个半径直流系统组成的一个蒸汽发动机驱动的直流发电机面积约1.5公里至59供电范围内的客户。

电气工程专业英语

电气工程专业英语Electrical Engineering专业英语1. Circuit analysis: 电路分析2. Power systems: 电力系统3. Control systems: 控制系统4. Electromagnetics: 电磁5. Electronics: 电子学6. Communication systems: 通信系统7. Digital signal processing: 数字信号处理8. Microelectronics: 微电子学9. Power electronics: 功率电子学10. Mechatronics: 机电一体化11. Electric machines and drives: 电机及驱动12. Renewable energy systems: 可再生能源系统13. High voltage engineering: 高压工程14. Electrical measurements: 电测量15. Electrical materials: 电材料16. Microwave engineering: 微波工程17. Optoelectronics: 光电子学18. Nanoelectronics: 纳米电子学19. Electromagnetic compatibility: 电磁兼容20. Robotics: 机器人学21. Artificial intelligence: 人工智能22. Embedded systems: 嵌入式系统23. Image and signal processing: 图像与信号处理24. Control theory: 控制理论25. Wireless communication: 无线通讯26. Power system protection: 电力系统保护27. Analog circuit design: 模拟电路设计28. Digital circuit design: 数字电路设计29. Fuzzy logic control: 模糊逻辑控制30. Biomedical engineering: 生物医学工程。

电气工程专业英语(电力类)翻译

实用资料：电气工程专业课(电力类)翻译参考专业外语：Professional English电路（上）electrical circuit (I)电路（下）electrical circuit (II)金工实习machinery practice电机（上）electrical machinery (I)电工实验与测试electrical experiment & test电子综合实践integrated electronic practice信号与系统signal & system电子技术基础（模拟）fundamentals of electronic (analog)电磁场electromagnetic field电子技术实验electronic experiment(I)电子辅助设计EDA Electronic Design Automatic(I)发电厂动力工程基础Heat power engineering in generating plant企业管理enterprise management电气主系统electrical system principle电力系统稳态/暂态分析Steady-State/ Transient-State Analysis of Power System 电力系统继电保护Power System Relaying Protection电力系统潮流计算机分析：Computer Analysis of Power Flow数字电子技术Digital Electrical Technique微机原理microcomputer principle电子技术基础（数字）fundamentals of electronic (digital)自动控制automatic control theory电力系统分析electric power system analysis电子技术基础实验electronic experiment(II)电气主系统课程设计electrical system principle-course design电子辅助设计EDA Electronic Design Automatic(II)通信与计算机网络communication & computer networks电力系统继电保护electric power system relaying电力系统继电保护Power System Protective Relaying电力系统远动技术electric power system remote protocol生产实习productive practice Technology继电保护课程设计electric power system relaying-course design电力电子技术power electronics电力电子技术基础：Fundamentals of Electronics Power Technology电力电子课程设计Power electronics course design电力系统自动控制electric power system control & automation高电压技术High voltage engineering Technology变电站自动化substation automation电力经济electric power system economics电能质量控制electric power quality control配电网自动化distribution system automation电力系统新技术new techniques on electric power system控制电机electrical machine control调度自动化与能量管理energy management & automation灵活交流输电系统flexible AC transmission system计算机保护computer protection电力系统电磁兼容EMC in electric power system毕业实习graduation practice毕业设计graduation dissertation数字信号处理：Digital Signal Processing自动控制理论：Automatic Control Theory电气工程基础：Fundamentals of Electrical Engineering电磁场概论：Introduction to Electro-Magnetic Field计算机继电保护：Microcomputer-Based Relaying Protection电气设备的绝缘检测与故障诊断：Insulation Diagnostics and Troubl-Shooting for Electrical Installations电网规划：Power System Planning可编程控制器原理及应用：Principles of PLC (Programmable logic Controller) And Application电磁场数值计算：Numerical Computation of Electro-Magnetic Field电力系统继电保护：Relay Protection of Power System电力系统自动装置原理The Principle of Electric Power System Automatic Equipment电力通信系统及调度自动化：Power System Communication and Dispatching Automatic专业方向电气工程Electrical Engineering电机与电器Electric Machines and Electric Apparatus电力系统及其自动化Power System and its Automation高电压与绝缘技术High Voltage and Insulation Technology电力电子与电力传动Power Electronics and Power Drives电工理论与新技术Theory and New Technology of Electrical Engineering电子科学与技术Electronics Science and Technology。