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本文针对煤矿牵引电车供电系统的特点,提出了一种利用混合补偿器进行牵引电车配电所无功和谐波综合补偿的方案。介绍了牵引电车配电所无功动态并联综合补偿装置的基本构成、装置的调试、运行情况,以及滤波器组、吸流电抗器组的过零投切波形以及补偿效果。分析了该可调无功补偿装置的工作原理,讨论了谐波及无功电流检测方法与混合补偿器的控制策略。
In this paper, according to the characteristics of coal mine traction power supply system, a hybrid compensator is proposed to compensate reactive power and harmonics in the traction power distribution system. This paper introduces the basic structure of reactive power parallel combination compensation device in traction power distribution system, the commissioning and operation of the device, the zero-crossing switching waveform of the filter banks and current-sinking reactors and the compensation effect. The working principle of the adjustable reactive compensation device is analyzed. The control methods of harmonic and reactive current detection method and hybrid compensator are discussed.