Cheng Hongbo
School of OpticalElectrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaHao Runke
School of OpticalElectrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaYang Wenhuan
Shanghai Tianjin Electronic and Technology Co., Shanghai 200093, ChinaPan Ning
School of OpticalElectrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China1.School of OpticalElectrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. Shanghai Tianjin Electronic and Technology Co., Shanghai 200093, China
TM461.4; TN710.2
Due to the high pressure rating of thyristor, the thyristor widely used in highvoltage dynamic reactive power compensation device. Thyristor valves composed of thyristor series are core devices of thyristor controlled reactor (TCR). In high voltage, driving circuit of the thyristor valve in which manner obtains energy is the problem of highvoltage dynamic reactive power compensation device that must consider. In order to increase the reliability of thyristor series operation, this paper design a voltage and current access circuits to meet both TCR in the trigger angle to obtain energy, to power driving circuit, achieving high thyristor valve system selfpowered. Establishment of each energyobtaining circuit simulation model in PSPICE software, the simulation results show that the high energyobtaining circuits can not only reduce switching losses and improve the efficiency of thyristor operation but also provide power to the drive circuit, which provide fundamental basis for stable power supply of thyristor driving circuit.
