Analysis and study of total harmonic distortion in five phase PWM inverter using LC filter with neutral point DC link capacitor voltage balancing scheme

Abstract

Most of the researchers working on power electronic converters and inverter system, in the present technology power electronic converters and inverters have many limitations in industrial applications. Industrial applications needs high torque, long life and high reliability power electronic systems. It is very difficult task of designing the power electronic system to meet the industrial demands, although many factors and parameters which are adversely contribute to minimize the efficiency and life time of the system. The major factors involved to obtain an efficient power transmission, are the dominant factor of harmonics that disturb the required voltage waveform. This work highlights the methods and analysis of harmonics and THD of the five Phase PWM drive, the reduction harmonics has been obtained by the PWM Inverter, this is done by studying THD with LC filter and DC level capacitor voltage balancing scheme using MATLAB programming. The harmonic distortion has been reduced and compared with normal PWM drive is presented in this paper.