配网动态无功补偿器的研究与应用

Research and Application of Distribution Static Compensator

配网连续动态无功补偿器的核心技术是补偿电流的检测方法和控制算法。采用FBD(Fryze Buchholz Depenbrock)法作为补偿电流的检测方法,以基于电压空间矢量脉宽调制(SVPWM)的无差拍控制(Dead-beat Control,简称DBC)算法作为补偿电流的控制算法,设计制造了配网连续动态无功补偿器(D-STATCOM)装置。实验结果表明,该装置能快速响应电流变化,在不同补偿模式下均有良好的补偿效果,同时现场工程应用的运行结果也证明该装置具有良好的动态性、可靠性和实用性。

Compensatory currents detection and control arithmetic are important technology of distribution static compensator（D-STATCOM）.Currents detection method based on Fryze Buchholz Depenbrock （FBD） and compensatory current dead-beat control （DBC） arithmetic with space vector pulse width modulation （SVPWM） are proposed.The proposed method is used for D-STATCOM.Experimental results are presented to verify the control method of compen-satory effect in various compensate model.Running results proves this produce possesses reliability and practicability.