A Novel Control Method of Dynamic Filter for Composite Power Load

Abstract

Abstract. The working compound electrical loads are characterized by a large number of harmonics. It may pull down the voltage of the power supply network and influence the other electrical devices. Therefore, a control method of dynamic filter for the composite power load was developed. In this paper, a controller is designed to control the dynamic filter to keep the harmonics in permitted ranges by harmonic filtering. The following works have been done in the study: harmonic analysis for the composite power load; the theory of the control method of dynamic filter for the composite power load; the implementation of the control method of dynamic filter for the composite power load. It can improve operation efficiency when the load is working, save energy, stabilize the voltage of the power supply network.