Power quality improvement at input and output stages of three phase diode rectifier using artificial intelligent techniques for DC and AC drive applications

This paper focuses on the power quality improvement at input and output stages of three phase diode rectifier. The input current harmonics distortion (THD), power factor at input and output side and voltage regulation of the three phase diode rectifier is investigated for power quality improvement. In this method, bidirectional switches are connected across the front end rectifier. The circuit with buck regulator is simulated for different torque conditions of DC motor. Design of Fuzzy controller and Adaptive Neuro-Fuzzy Inference Systems (ANFIS) are based on heuristic knowledge converter behavior. The design of PI control is based on the frequency response of the converter. The experimental results are presented for the circuit with resonant DC link inverter and induction motor using microcontroller and FPGA based hardware implementations.