ss3型电力机车主电路结构分析及运行工况探讨大学论文

摘要铁路作为远距离、大容量、全天候的陆路交通工具，以其功率大、速度快、效率高、过载能力强、适应性好的特点被广泛受到重视。

中国高铁在“以稳为主、稳中求快”的宗旨指点下，取得快速发展的可喜成绩。

SS3B型电力机车是第二代机车技术产物SS3型的改进产品，技术有承前启后的必然，也有被取代的必要性。

SS3B型电力机车调压方式采用了以单向半控桥式整流电路为调压理论基础的不等分三段半控整流电路，三级弱磁升速的具有弱磁与调压配合控制特的调速电路，供电方式是是转向架电机并联独立供电方式，SS3B型电力机车的制动方式是加馈电阻制动，此外，由于SS3B型电力机车的电气设备布置与电气控制等方面比SS3型电力机车设计的更加合理，这使该电力机车拥有恒流启动准恒速限压运行的调速控制特性和更优越的再生制动性能，本文重点讨论电力机车主、辅电路及电力机车的运行工况。

随着新型电力机车应用和推广工作的深入、列车技术的改进与发展，SS3B型电力机车的安全性、可靠性和节能性能等问题已经成为阻碍它继续推广的障碍。

如SS3B型电力机车功率因数并不理想的不等分三段桥整流装置所产生的谐波，给正常运行的电网造成干扰乃至危害；使辅助电路系统提供电力的劈相机的启动接触器线圈经常烧坏，造成停车事故；牵引变压器渗、漏油故障等，这些情况不仅给机车的正常运行带来隐患，也增加了机车的检修成本，所以本文提出了有关故障的处理和预防方法。

关键词：SS3 B型电力机车；主辅电路；制动工况；牵引工况；AbstractThe railroad is long-distance to leave, the route on land pileup of big capacity, all - weather, with it’s power big, quick velocity, efficiency higher, the overburden capability is strong, suitability the good characteristics be extensively been valued. Chinese high speed railway points out in the aim of "with steady for lord, steady amid beg quickly" down, obtain the pleased result of rapid shape. The SS3 B type electric locomotive is the betterment product of the next generation scooter technique outcome SS3 type, technique already before accepting Inspired post - of there is also the necessity to be replaced by all means.The SS3 B type electric locomotive adjusted to press a mode to adopt with the one-way quasi control the bridge type rectification telephone for adjust the anti of pressing the theoretical basis to wait to divide three quasis to control to commutate telephone,3 stages the weak magnetic belt kick soon have weak magnetic belt and adjust to press a team work control especially of velocity modulation telephone,The power supply method is to is a bogie dynamo to merge an independent power supply method, the making of SS3 B type electric locomotive method is to apply the Feedback resistance system,In addition, the electricity equipment of the SS3 B type electric locomotive decoration controls with electricity to wait aspect to compare a SS3 type electric locomotive to design more reasonable,This makes the electric locomotive hug to have persistence to flow a start preparation the constant speed limit press velocity modulation control characteristic and more superior regenerative braking performance of run - time, this text point talks about electric locomotive lord, assist the run - time work of telephone and electric locomotive condition.But along with the new electric locomotive application and the generalize operate of thorough, train technical betterment and shape, the stability, reliability and economy energy performance question of SS3 B type electric locomotive has already become baffling it goes on to expand barrier to. Such as SS3 B type electric locomotive power factor anti the ideal anti wait to divide three bridges rectification device generate of harmonic, result in to the charged barbed wire net that the normal circulates jam is to harm; Giving the auxiliary circuit system provide the start contactor of electric wedge camera the coil to burn usually is bad, result in to park the car accident; Lead transformer to ooze, leak oil fault etc., these condition not only bring the normal run - time of scooter concealed suffer from, also raised the cost of overhaul of scooter, so this text proposed concerning fault of transaction and prevention method.Key words:SS3 B type electric locomotive，the main and auxiliary circuit; brake conditions; traction conditions;目录摘要 (I)Abstract (II)1 绪论 (1)1.1 本课题探讨的背景及意义 (1)1.1.1 本课题探讨的背景 (1)1.1.2 本课题探讨的意义.......................................................................................... - 1 -1.2 当前电力机车技术现状及韶山系列电力机车性能分析 (2)1.2.1 电力机车技术现状 (2)1.2.2 SS3 B型电力机车技术现状 (2)1.3 本文研究的主要内容 (3)2 SS3型电力机车车体与电气控制分析 (4)2.1 SS3型电力机车车体概述 (4)2.1.1 电力机车电气设备 (4)2.1.2 电力机车设备布置遵循的准则 (4)2.1.3 电力机车电气设备布置 (5)2.2 电力机车控制规律分析 (5)2.3 电力机车特性分析 (6)3 SS3型电力机车主电路探究 (8)3.1 SS3、SS3B型机车电气系统探讨 ............................................................................ - 8 -3.1.1 SS3B型机车主电路参数分析 (8)3.1.2 SS3 B型电力机车主电路特点 (9)3.1.3 控制电路组成及特点 (9)3.2 网侧高压电路 (10)3.3 单相桥式半控整流电路调压原理 (11)3.4 三段半控桥式整流电路调压原理 (12)3.5 削磁调速电路原理探究 (14)4 机车运行工况分析 (18)4.1 牵引工况电气电路 (18)4.1.1 牵引工况升压环节电流回路分析 (18)4.1.2 牵引工况特性形成原理 (19)4.2 制动工况电气电路 (22)4.2.1加馈电阻制动电路及原理 (22)4.2.2 电流回路分析 (24)4.2.3 制动工况特性形成原理 (24)5 辅助电路与保护电路 (27)5.1 辅助电路 (27)5.1.1 电力机车辅助电路系统 (27)5.1.2 劈相机原理 (27)5.2 保护电路原理.......................................................................................................... - 29 -5.2.1 短路、过流、过载保护 (29)5.2.2 过电压、失压（欠压）保护 (29)5.2.3 空转、滑行保护............................................................................................ - 31 -6 电力机车常见故障分析与处理........................................................................................ - 32 -6.1 电气化铁道谐波危害与治理 (31)6.2 劈相机电路常见故障及改进 (32)6.3 主变压器运行中的常见故障及处理 (33)参考文献 (34)结束语 (35)致谢 (36)附录 (37)1 绪论1.1 本课题探讨的背景及意义1.1.1 本课题探讨的背景随着国民经济持续快速增长，社会工业化、市场化、城镇化建设进程的加快，必将带动全社会人员、物资加快流动，使全社会运输需求总量持续增长。