SPACE VECTOR PULSE WIDTH MODULATION OF FOUR-SWITCH VOLTAGE SOURCE INVERTER FEEDING THREE PHASE INDUCTION MOTOR

Sowilam, M. A.; Azazi, Haitham Z.

doi:10.21608/erjm.2016.66371

SPACE VECTOR PULSE WIDTH MODULATION OF FOUR-SWITCH VOLTAGE SOURCE INVERTER FEEDING THREE PHASE INDUCTION MOTOR

Document Type : Original Article

Authors

M. A. Sowilam ¹
Haitham Z. Azazi ²

¹ Electrical Power & Machine Engineering Department, Faculty of Engineering, Helwan University/ Electrical Engineering Department, Faculty of Engineering &Islamic Architecture, UQU university

² Department of Electrical Engineering, Faculty of Engineering, Menoufia University, Egypt

10.21608/erjm.2016.66371

Abstract

An analytical model with a new space vector pulse width modulation Voltage source inverter technique method of four-switch three-phase inverter (FSVPWM) feeding induction motor is presented. This paper presents a low cost inverter employing only four switches, four diodes and a split capacitor bank in the dc-link. This work is motivated by the need of an efficient and flexible modulation method, which is optimized with respect to minimum electrical motor torque. The proposed modulation strategy for the four-switch operation has the same symmetry as in a classical six-switches space vector pulse width modulation inverter (SSVPWM). The common mode voltage generated by the four-switch space vector pulse width modulation three-phase converter is evaluated and compared to that provided by the standard six-switch space vector pulse width modulation three-phase inverter. Simulation result are presented to demonstrate the feasibility of the proposed approach.