摘要
由于晶闸管耐压等级高,在高压动态无功补偿装置中广泛使用,由晶闸管串联构成的晶闸管阀,是晶闸管控制电抗器(TCR)的核心器件,在高电压下晶闸管阀驱动电路以何种方式获取能量是高压动态无功补偿装置必须考虑的问题。为了增加晶闸管串联运行的可靠性,设计了一种电压电流取能电路,能够满足TCR在各触发角下均能取到能量,给驱动电路供电,实现晶闸管阀高位系统自供电。利用PSPICE软件建立各取能电路仿真模型,仿真结果表明:高位取能电路能够减少开关损耗,提高晶闸管运行效率,而且能向驱动电路提供电能,为晶闸管阀的驱动电路稳定供电提供了理论基础。
Due to the high pressure rating of thyristor, the thyristor widely used in high-voltage 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 high- voltage 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 setLpowered. Establishment of each energy" obtaining circuit simulation model in PSPICE software, the simulation results show that the high energy-obtaining 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.
出处
《电子测量技术》
2017年第8期37-41,共5页
Electronic Measurement Technology
关键词
晶闸管阀
TCR
取能电路
驱动电路
thyristor valves
TCR
energy-obtaining circuit~ drive circuit