电力系统专业词汇

电力专业术语英汉对照表

sudden loss of a generator or transmission line. 突然损失发电机或线路

sudde n load in creases or decreases负荷突然增加或减少short circuits and switching operations. 短路和开关操作three-phase and line-to-ground faults 三相和对地短路circuit breaker 短路器transient overvoltages and currents 暂态过电压和电流lightning strikes 雷击surge arrester电涌放电器phasor 相量instantaneous power 瞬时功率

A sinusoidal voltage or current at constant frequency 正弦电压或电流maximum value 最大值effective value 有效值average value 平均值real axis 坐标系实轴imaginary axis 坐标系虚轴phasor diagram for 相量图passive eleme nts 无源元件resistor 电阻inductor 电感capacitor 电容reacta nee 电抗inductive 感性capacitive 容性real power or active power 有功功率reactive power 无功功率power factor 功率因数power factor angle 功率因数角The physical sig ni fica nee of …物理意义…be in phase with ..... 与…同相位

As indicated by (2.1),…如式(2.1)所示The current lags (leads) the voltage by 90 … 落后(超前)…多少相位. sinusoidal-steady-state 正弦稳态让a= b，得至U： Letting a=b gives By convention, the power factor cos(a-b) is positive 按照惯例(通常) .

a time interval T. Example: The total energy absorbed by a load during a time interval 时间区间

rating. 定值

power rating 额定功率

power rating of electric generator ；发电机额定功率

voltage rating. 额定电压

Kirchhoff 's current(voltage) law 基尔霍夫电

流(电压)方程

nodal equations 节点方程admittance matrix 导纳矩阵column vector of N bus voltages 有N 个节点电压构成的列相量

diagonal elements 对角元素off-diagonal elements 非对角元self-admittance; driving-point admittance 自导纳

mutual admittance; transfer admittance 互导纳The US blackout on 14 August, 2003 美国8.14 大停电

The blackout will have huge technical and organizational consequences for the US power industry …对…将产生深远影响

The existing local reactive power sources were not able to support the voltages. 当地仅存的

无功电源无法维持电压

trip(tripped) the lines. 切除线路Power system stability refers to the ability of synchronous machines to move from one steady-state operating point following a disturba nee to ano ther steady-state …operati ng point, without losing synchronism. 电力系统稳定是指nominal values 额定值

loss of generation, line-switching operations, faults, sudden load changes 故障类型

EMS=Energy Management System 能量管理

系统

DMS=Distribution Management System 配电

网络管理系统

SCADA=Supervisory Control And Data Acquisition 监管控制与数据采集（调度自动化系统）

AGC=Automatic Generation Control 自动发电控制

LFC=Load Frequency Control 负荷频率控制EDC=Economic load Dispatching Control 经济调度负荷控制

RTU=Remote Terminal Unit 远程终端单元

（远动分站）

MMI=Men Machine Interface 人机交互界面（在屏幕上进行监视与操作、控制）

CRT=Cathode Ray Type 阴极射线显示（显像管监视器）

LC=Load Control 负荷控制AM/FM=Automated Mapping and Facilities Management 自动绘图与设备管理DSM=Demand Side Management 需求端管理TOU=Time Of Use 使用时间（次