HVDC换流阀合成试验控制及保护系统设计与开发

随着高压直流输电技术的发展，换流阀的额定容量大幅增长。传统的背靠背装置受装机容量限制，已很难适应试验需求。合成试验回路有独立的电压源和电流源，通过控制辅助阀的通断，为试验提供所需的电压和电流，是目前较好的替代方法。文中介绍了合成试验控制及保护系统的硬件结构、工作原理及软件配置。动态模拟试验结果证明该系统能很好地实现各项试验要求。

Design and Development of Control and Protection System for Synthetic-test of HVDC Converter Valve

With the development of HVDC technology, the power rating of HVDC valve has increased rapidly. Limited by generating capacity, traditional back-to-back test circuit is difficult to fulfill the demand of valve test. With voltage source and current source individually, synthetic-test circuit can provide voltage and current for test valve by controlling the switch of aided valves. So, synthetic-test circuit is a good alternative for valve test. The hardware structure, operation principle and software configuration of the synthetic-test control and protection system are introduced. The experiment results demonstrate that the system can meet the various requirements in applications satisfactorily.