高压直流断路器测控装置的设计与试验分析

摘要:

直流输(配)电是目前电网发展的趋势,而高压直流断路器的研发是影响其发展的关键技术之一。测量与控制装置的研究是高压直流断路器的研发要点。采用高压电力电子器件,DSP+FPGA相结合的控制方式,对其测控装置进行研究分析,提出了区间阈值的控制方法及相应的控制时序,从高压直流输电、能源多样化的发展需求入手,将机械开关和固态开光相结合,设计了一套混合式高压直流断路器样机。通过对样机进行合分闸试验及故障分闸试验,证明了所研制的高压直流断路器样机具有分闸动作快,限弧能力强,动作一致性好等优点。

Abstract:

The current trend of development is DC input (with) electric power grid. However, the development of HVDC circuit breaker is one of the key technologies. It designed a prototype hybrid HVDC circuit breaker, which use the high-voltage power electronics, and the controller of DSP + FPGA combination. It researched the monitoring device, and proposed the control method of threshold interval and the control timing. It designed a prototype hybrid HVDC circuit breaker, Which form the high-voltage direct current transmission, energy diversification, the development needs of combining mechanical switch and solid medallion. Through the prototype sub-gate opening test and fault tests proved that the developed prototype HVDC circuit breaker with the fast opening operation, the advantages ofSgood action consistencySetc..