Study on Dynamic Voltage Conditioner with One-Cycle Control

Abstract

One-cycle control is a nonlinear modulation and control technique presented in 1991. It has been widely used in various kinds of inverters and active power filters because it possesses the distinguishing feature of higher control precision, better dynamic follow performance and simpler control circuit. In this paper, one cycle control technique is applied to the control process of DVC. A new control scheme for DVC by using one- cycle control is proposed. First, based on the analysis of power circuit, the control principle is in detail introduced. And then, the corresponding one-cycle control model for the proposed DVC is built up. Finally, the control model for single-phase DVC is simulated using Matlab based on theoretical analysis and given the control model. Both theory analysis and simulation results show that the new control scheme for DVC are correct and effectual.