基于牵引-补偿变压器的同相供电综合补偿方案

Comprehensive Compensation Scheme of Cophase Power Supply Based on Traction Compensation Transformer

针对电气化铁路以负序和无功为主的电能质量问题,提出一种基于牵引-补偿变压器的同相供电综合补偿方案。该方案采用牵引端口和补偿端口集成化设计,在实现综合补偿的同时,能够有效减小占地面积。通过设置无功补偿度和负序补偿度,确定了二端口和三端口的补偿方案,并提出了相应的补偿控制策略。最后通过仿真验证了同相供电综合补偿方案及控制策略的正确性和可行性。

In view of the power quality problem of electrified railway dominated by negative sequence and reactive power,a comprehensive compensation scheme of cophase power supply based on traction compensation transformer was proposed.The scheme adopts the integrated design of traction ports and compensation ports,and can effectively reduce the land area while realizing comprehensive compensation.By defining the degree of reactive power compensation and the degree of negative sequence compensation,the compensation schemes of two ports and three ports were determined,and the corresponding compensation control strategy was proposed.The correctness and feasibility of the proposed comprehensive compensation scheme and control strategy for cophase power supply were verified by simulation.