CAJ | 학술논문

　　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。
　　침대전통정갑관투절전용기（Thyristor Switching Capacitor—TSC）적불족화매광정하6kV측전능질량적요구，설계출일충중압투절전용기적무공보상장치，근거상응공식계산출수요보상적무공공솔치병선택응투입적전용기조합，전용기조채용편마투절방식，기중예충전상공개관작위기투절개관，해장치가제고보상속도화준학성。통과Simulink방진，험증료예충전상공개관능재전원전압봉치시각무용류투절전용기，제고공솔인수，차동작시간화복합개관기본상동적결론。
Aiming at the shortcomings of traditional TSC and the requirements of power quality in coal mine, this paper designs a reactive power compensation device of medium voltage switching capacitor, which can calculate the compensation of reactive power and select the capacitor combination by the corresponding formula, in addition, capacitor group uses the code switching mode where the pre-charge phase control switch is the switch. The device can improve the speed and accuracy of compensation. Through Simulink, it is proved that the pre-charge phase control has no inrush current in the peak of power supply voltage and enhances the power factor. Moreover the action time is similar to the compound switch.