A Switched Reluctance Motor Drive Based on Quasi Z-Source Converter With Voltage Regulation and Power Factor Correction

Modified quasi Z-source converter (MQZSC) is presented in this paper as a front end converter for the switched reluctance motor (SRM) drive system in order to perform voltage regulation and power factor correction (PFC). Using the MQZSC, magnetization voltage is increased and regulated according to the operation modes and requirements of the drive system; therefore, more power is transferred to the motor in each stroke. The demagnitization port is also decoupled from the magnetization port and boosted further to reduce demagnetization time. The proposed converter like conventional SRM converter has the freewheeling mode of operation. The peak current control (PCC) PFC is integrated into the control system of the front-end converter to reduce total harmonic distortion and enhance the power factor. Also, an angle control is implemented in the SRM drive system to reduce the torque ripple alongside voltage regulation in the front end controller. A software simulation is done to verify the proposed drive system. To demonstrate the abilities of the proposed drive system in practice, an experimental setup is devised in the laboratory to verify the simulation results.