一种牵引变电所无功和谐波补偿电流综合检测方法

摘要

Aiming to reactive and sequence problem in traction substation, and combination of universal instantaneous power theory, a detection method of reactive and harmonic currents based on source voltage vector synchronous reference frame is proposed. This method has a simple computation without phase locked loop, which gives a good way to deal with the reactive and sequence problem rely on PFC. In the end, the effectiveness of the prosed method is verified by simulation in the terms of the voltage sinusoidal and distortion.%针对电气化铁道存在的无功、负序等问题，结合通用瞬时无功功率理论，提出了一种基于平衡变压器的电源电压同步参考坐标矢量变换的变电所无功和谐波检测方法。该检测方法无需锁相环，计算方法简单，为潮流控制器实施变电所无功和负序综合治理提供了新的有效途径。最后分别从电源对称和畸变两种条件下进行了对比分析，仿真结果验证了所提方法的有效性。