Performance Analysis of Z-Source Inverter fed PM BLDC Motor Drive Vidya Sojan M.Tech Scholar, Department of Electrical Engineering, College of Engineering, Thiruvananthapuram, INDIA Email: firstname.lastname@example.org Abstract — This paper deals with the simulation of the closed loop operation of a Permanent Magnet Brushless DC Motor Drive system with a Z-source inverter and conventional six switch inverter, and their performance comparison. Simulation results are presented to demonstrate the performance evaluation of two inverter topologies. The comparison shows that the Z-source inverter is very promising for BLDC motor drives. Key Words-Brushless DC motor drive; Z-source inverter; hysteresis current controller; speed control.
Mrs. Lekshmi A. Senior Lecturer, Department of Electrical Engineering, College of Engineering, Thiruvananthapuram, INDIA Email: email@example.com a BLDC motor drive system fed by a Z-source inverter will have the advantages of both of them, and will be suitable for the fuel cell based electric drive systems. The output voltage of Z-source inverter can be easily controlled by controlling the shoot-through time by using space vector PWM technique [9-10]. For the sake of comparison, the dynamic and steady state performance of the Z-source inverter fed BLDC motor drive are referred to the ones of the conventional VSI fed BLDC motor drive. This paper deals with the simulation of the closed loop operation of a BLDC motor fed by conventional six step inverter and Z-source inverter. MATLAB/SIMULINK schematic of the BLDC motor drive system is developed and the same is used for simulation. A detailed evaluation of the proposed inverter is presented in the following sections. The configuration, operating principle and control method of proposed electric drive system are described in section II. A modeling procedure for the conventional VSI fed BLDC motor is also discussed. Section III deals with the analysis of Z-source inverter fed BLDC motor...
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