| More and more unbalanced Loads are used, which will lead to the power system's unbalance. The power system's unbalance is a serious threat to the power system security. The SVC can not only compensates the reactive power, but also dish the negative sequence current produced by the unbalance loads, which mostly depend on the control scheme.This paper introduces the basic theory about the asymmetry compensating. A new type of static var compensator (SVC) based on the method of synchronous symmetrical component is presented. Build the SVC simulation model based on matlab, and set up a suit of the SVC physics experiment model. The voltage and the flow vector figures are recorded by float Power Quality analyzer. The experiment validates the method. |