The study of combined control strategies for active power filter

Current tracking control method of active power filter can obviously influence the performance of shunt active power filter. This paper analyzes the operating compensating principles of APF in detail, and introduces fundamental principles of hysteresis control and space vector control strategies. Based on the advantages and disadvantages of each control method, the combined control strategy of hysteresis current control based on space vector is designed. Simulation model with MATLAB is built and simulation results are compared and analyzed in detail, which verifies the effectiveness and superiority of the combined control strategy. The work done in this paper can afford theoretical base for the real project.