Parameter Optimization Design for Injection Type Hybrid Active Power Filter and Its Engineering Application

After analyzing the structure and working principle of injection-type hybrid active power filter (IHAPF),the optimum parameter design of its main circuit is emphatically researched. A design method for passive filter,which can meet the demand of harmonic elimination and ensure reliable operation of power filter,is proposed. A particle swarm optimization (PSO) algorithm based optimum parameter design method for injection circuit,which ensures the harmonic elimination ability of IHAPF and reduces the affect of harmonic voltage on power filter,is put forward. According to practical working condition of insufficiency of reactive power and harmonic pollution of a certain factory due to the rectifier circuit without power filter,an IHAPF device is developed. Simulation results and engineering application show that the designed IHAPF can effectively eliminate harmonics and compensate reactive power.