SPEED CONTROL SYSTEM OF SWITCHED RELUCTANCE MOTOR

• Main Author: Zakaria, Diky
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/53936
• Institution: Institut Teknologi Bandung

This study discusses the speed control of Switched Reluctance (SRM) as the main driving force of electric vehicles. The SRM used has a narrow input saturation range. SRM only rotates at the PWM value of 72-84 or the equivalent input voltage to the SRM driver of 1.446 volts - 1.753 volts. At the PWM value of 0-71 and PWM 85-255, the SRM does not rotate (deadzone). The purpose of this research is to design a PI, PI antiwindup and PI adaptive antiwindup controllers in a linear area that can control the motor speed in that narrow range of input controls. The control design is done by modeling the SRM on the SysId Matlab by looking at the system response when given a certain PWM input where the PWM value is at the SRM operating point. From the results of the SysId Matlab, the system first order transfer function is obtained. The system transfer function is used to determine the value of Kp and Ki analytically in ideal conditions without saturation. After the Kp and Ki values were obtained, a simulation of the PI control system, PI antiwindup and PI adaptive antiwindup was performed. At the implementation stage, only a positive control signal is used which makes the motor rotate without any braking effects. From the simulation and implementation, the data shows that the designed control system is able to control the SRM speed in reaching steady state, the overshoot value and the steady state error leading to 0%.