无功调差及自动检测实验装置电路设计

Design of Experimental Circuit of Reactive Power Compensative and Automatic Detection

从发电机和高压输电线供给的无功功率,一般满足不了负荷的需要,为了改变发电机外特性曲线,使并列运行的各台机组之间合理分配无功负荷并维持系统某一点电压恒定,在负荷变化时,需设置无功调差电路,补偿电力网电压损耗.分析了无功调差电路原理及自动检测比较回路的实现方法.

The reactive power from the generator and high-voltage transmission lines generally can not meet the load requirements. In order to change the generator external characteristic curve, make reactive load rational allocatde among each parallel operation unit, and a certain point voltage of system maintainning constant, reactive power compensative circuit is needed to compensate the power network voltage loss when the load changes. This article introduces the principle of reactive power compensative circuit and realization method of automatic detection and comparison circuit.