Modeling and Design of Controllers for Switched Reluctance Motor Based on Asymmetrical -Source Inverters

In this paper a power electronic converter on the basis of asymmetrical ?-Source inverter has identified to control the speed of switched reluctance motor. In this structure, the converter on the AC side is connected to the three phase power system through three phase three leg inverter while on its DC side supplies a switch reluctance motor throughan impedance network. To have the best control performance (speed control and minimum distortion effects) three loop control system includes impedance network capacitor voltage controller, motor voltage and motor speed controller have been used. Capacitor voltage controller itself contains two sub system include inner current controller in AC side and outer voltage controller to control capacitor voltage. Also speed control unit contains two parts of motor phase current control and external speed controller. Hence totally five control loop have been used to design control system. In order two design aforementioned control systems, dynamic model of asymmetrical ?-Source inverter has been used for power electronic converters and the time domain dynamic response of motor has been used to design speed controller. The performance of proposed control system has been tested in MATLAB/simulink to prove the performance of the designed control system.