A comparative analysis of passive filters for power quality improvement

This paper presents the design procedure of shunt passive filters for improving power quality by eliminating harmonic distortion caused by non-linear loads. The passive filters include single tuned passive filter (STPF) and double tuned passive filter (DTPF) are considered for analysis purpose. In the design of filters, the parameters of passive elements are obtained for 5^th, 7^th, 11^th and 13^th harmonic order component. The DTPF is more effective in removal of harmonic distortion while compared with STPF. The simulation of proposed system is done in the MATLAB/Simulink environment. The various results are satisfied under IEEE- 519 harmonic standard limits.