基于滚动投切型SVC的智能控制器的研究

简要分析了SVC的系统结构及其各部分的工作原理与特性,将电容投切过程分为暂态与稳态过程,并以此结合机械投切开关(MS)、晶闸管投切开关(TS)的特性,使得滚动投切无功补偿装置达到最优状态。在此基础上分析了TCR的工作原理,结合滚动投切开关中MS模块以及TS模块,提出了一种针对该种SVC的控制方法。该方法结合了比例积分控制PI以及比例谐振PR控制,在TCR控制端加入比例谐振PR控制,控制TCR触发角。最后,对此方法进行了仿真,与传统控制方式相比,该控制器在提高功率因数、抑制谐波以及提高系统稳定等方面进行了改进。

Research on Intelligent Controller Based on SVC of Rolling Cut Type

The paper briefly analysised new structure and the various parts of SVC. The working principle of capacitor＇s switching process can be divided into transient and steady state process. It combinated features of mechanical switching （MS） and thyristor switch （TS）. Making new rolling switching reactive power compensation device to achieve optimal state. Based on this analysis of the TCR working, combined with the MS scroll switching switch modules and TS module, we propose a new type of SVC for that kind of control methods. The method combines proportional and proportional integral control resonance PR and PI control. Finally, this method is simulated, compared with the traditional control mode, the controller works better in improving power factor, harmonic suppression, improving the system stability, etc.