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矿用预充电相控开关投切电容器的分析

Electrical Measurement & Instrumentation(2013)

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Abstract
针对传统晶闸管投切电容器(Thyristor Switching Capacitor—TSC)的不足和煤矿井下6kV侧电能质量的要求,设计出一种中压投切电容器的无功补偿装置,根据相应公式计算出需要补偿的无功功率值并选择应投入的电容器组合,电容器组采用编码投切方式,其中预充电相控开关作为其投切开关,该装置可提高补偿速度和准确性。通过Simulink仿真,验证了预充电相控开关能在电源电压峰值时刻无涌流投切电容器,提高功率因数,且动作时间和复合开关基本相同的结论。
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Key words
pre-charge phase control switch,switching capacitor in medium voltage,Simulink,coal mine power supply
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