Design and Simulation of Z-Source Inverter Fed Brushless DC Motor Drive Supplied With Fuel Cell for Automotive Applications

Abstract

This paper presents design and simulation Z-source inverter fed brushless DC motor drive supplied with fuel cell for automotive applications. The (BLDC) motor are used due to many advantages such as high efficiency, high torque, high reliability, high power density, lower maintenance compared to other motors in electric transport applications. The BLDC motor drive are with voltage source inverter (VSI) or current source inverter (CSI) because of low efficiency, high thermal loss, inductor and capacitor large values inherently unreliable. Also, the shoot-trough in DC bus in VSI and open circuit in the DC link of CSI cause damage to the power source connected to the inverter such as fuel cells. To adjust the output voltage in VSI and CSI, the separate converter DC-DC Buck and Boost converters are necessary. To overcome to disadvantages of VSAI and CSI, the Z-source inverter using two inductors and capacitors can be employed. The Z-source inverter has inherent protection against shoot-trough in the DC bus and ability to boost the voltage. In this paper, the BLDC motor drive supplied with fuel cell through a Z-source inverter is designed and evaluated. Some simulations results are provided to verify the validity of the proposed applications and control strategy.