并行控制结构的静止无功补偿器设计与实现

Design and implementation of parallel controlled SVC

介绍了静止无功补偿器的基本原理和结构,采用并行控制结构设计并实现了静止无功补偿器的控制系统、保护系统及人机接口系统。软件采用面向对象的线程设计方法,分别设计了控制CPU的主控制、定时器、SPI等线程;保护CPU的保护、I/O及SPI、串行通信等线程;人机接口CPU的SPI、键盘输入、液晶显示等线程。对实现的静止无功补偿器样机进行了动态模拟实验,结果表明,该静止无功补偿器的控制系统、保护电路及人机接口电路等达到设计要求,整机运行稳定可靠。

The principle and configuration of SVC （Static Var Compensator） are introduced,and its control system,protection system and man-machine interface system are designed and implemented by using parallel control. Ten threads are designed using object-oriented method,including the main control,timer and SPI for control CPU,the protection,I/O,SPI and serial communication for protection CPU,and the SPI,keyboard input,liquid crystal display for man-machine interface CPU. The prototype is tested by dynamic simulation,and the results prove that the control system, protection circuit and man-machine circuit of SVC meet design targets with stable and reliable operation of whole equipment.