一种新型的无功功率自动补偿器

A new type of reactive power automatic compensator

为了实现对低压配电系统的连续补偿,该系统在多级有级电容补偿模块的基础上增加了一块无级电容补偿模块,以AT89C52为核心,靠软件编程控制有级电容补偿模块"先投先退出,后投后切除"的循环投切、无级电容补偿模块的投切和无级电容补偿模块中晶闸管的控制角。研究结果表明,增加无级电容补偿模块和控制投功方式,能够有效解决低压配电系统中的过补偿、欠补偿和投切振荡问题,大大提高了电网供电质量,延长了电容器使用寿命。

In order to realize continuous compensation for low-voltage distribution system,a non-level capacitor compensation module was increased based on many of the system multi-step capacitor compensation modules.AT89C52 single chip computer was the core.The step capacitance compensation was controlled by switch circularly ＂to withdraw from the first input,to put into operation from the first removal＂ by software programming.Stepless capacitor compensation module switching and thyristor＇s control angle of stepless capacitor compensation module was also controlled by software programming.The results indicate that the automatic compensator can effectively solve the problems of over and under compensation and oscillation switching and so on,for low-voltage power distribution system.And it greatly improves the quality of the power grid and extends the life of the capacitor by increased stepless capacitor compensation module and controlled switching manner.