Research on Coordinate Voltage control Method Using LRT/SVR and SVC

分布式发电系统如光伏系统的渗透会造成电压波动和电压升降之间的较大电压差距。这些影响发生在与光伏系统相连的配电网的适当电压范围之外。为了解决基于电压间隙和电压波动的电压超限问题，提出了一种基于LRT、SVR和STATCOM的协调电压控制方法。该方法具有两种功能：一种是通过集中控制LRT和SVR来减小电压间隙，另一种是通过STATCOM的自主控制来平滑电压的快速变化。

The penetration of distributed generator such as PV systems causes voltage fluctuation and wide voltage gap between voltage rise and voltage drop. These influence occurs exceedance of the proper voltage range in distribution network connected with PV systems. In order to resolve the exceedance of the proper voltage range based on the voltage gap and fluctuation, the author proposed a coordinated voltage control method by LRT, SVR and STATCOM. The proposed method has two functions ; the first function (voltage gap reducing function) is to reduce the voltage gap by centralizing control of LRT and SVR, and the other (voltage smoothing function) is to smooth rapid voltage change by autonomous control of STATCOM.