电气工程及其自动化牵引网电压损失毕业设计论文摘要和目录

摘 要 为了保证电力牵引列车的正常运行，在牵引变电所两边供电分区的任何地 点，牵引网电压都不应低于规定的。为此，在电气化设计中必须进行电压损 失的计算，以校核供电臂末端区间电力机车受电弓上的短时最低电压，要求不低 于上述标准。同时，当电压损失较大时，还应采取相应的来补偿电压，以改 善牵引网电压质量，保证列车的正常运行和经济运行。 本首先介绍了牵引网中电压损失产生的原因和国内外通常采用的改善 牵引网电压的三种，即提高变电所母线电压，串联电容补偿法和降低牵引网 阻抗法。同时研究了采用串联电容补偿法补偿牵引网中的电压损失时的可行性和 相关的计算过程。最后根据设计数据计算了单线和复线牵引网的等效阻抗, 单线牵引网电压损失,复线牵引网电压损失,串联电容补偿容量,补偿电容器台数,并画出了相应的接线图。计算结果表明,本论文的研究思路可行,计算结果正确,确定的补偿无误,能满足实际生产现场的运行需要,具有一定的现实意义。 关键词：牵引网；电压损失；牵引变电所；串联电容补偿 ABSTRACT To ensure that electric traction trains to the normal operation, at any location of the both sides of the district in the traction power substation, the voltage of the traction network should not be lower than the required standards. Therefore, in the design of the electrification of the need for the calculation of voltage losses check power arm to the end of the power range pantograph on the short-term minimum voltage requirements below these standards. Meanwhile, when the voltage loss is large, should also take appropriate measures to compensate for voltage, to improve traction voltage network quality, guarantee the normal operation of trains and economic operations. This paper introduces the causes of voltage lost of the traction network and three methods for improving the traction network voltage that usually used at home and abroad, namely, to increase the bus voltage of the traction substation, series capacitors or reduce traction network impedance. Meanwhile, researched using series capacitor compensation compensates the traction network of voltage losses related to the feasibility and the calculation process. Finally, according to the design data to calculate the single-track railway traction network and the equivalent impedance, Single-voltage net loss of traction, traction Duplication net loss of voltage, the capacitor voltage compensation capacity, the number of Taiwan compensation capacitor, and its diagrams. The results show that the thesis of this idea feasible, the correct calculation to determine the compensation package truthful, actual production can meet the operational needs of the scene, have some practical significance. Keywords: traction network voltage losses; traction Substation; autotransformer 目 录 .................................................. 1 .............................. 2 1.1牵引网概况 ........................................... 2 1.1.1牵引网的组成 ....................................... 2 1.1.2牵引网的供电方式 ................................... 3 1.1.3牵引网的等效电路 ................................... 4 1.2牵引网电压损失产生的原因 ............................. 4 1.3国内外常用的改善牵引网电压损失的方法 ................. 5 ......................... 10 2.1牵引变电所的概况 .................................... 10 2.1.1牵引变电所的构成 .................................. 10 2.1.2交流电力牵引和牵引变电所 .......................... 13 2.2单相牵引变电所 ...................................... 14 2.3单相牵引变电所中的电压损失 .......................... 14 ....................... 15 3.1电压损失计算和牵引网的等效阻抗 ...................... 15 3.2牵引网中的电压损失计算 .............................. 17 3.2.1单线牵引网中的电压损失 ............................ 17 3.2.2复线牵引网中的电压损失 ............................ 19 3.3采用串联电容补偿牵引网中的电压损失 .................. 20 ................................................. 22 ................................................. 23 ............................................... 25