Investigation into the Effect of Switching Frequency on the Performance of Current Controlled Inverter Employing Space Vector Modulation Technique

Document Type : Original Article

Authors

Department of Electrical Eng., Faculty of Eng.., Menoufia University, Sebin El-Kom, Egypt Electrical engineer at AI-Ezz steel rebars company.

Abstract

In this paper the effect of switching hquency on the performance ofthe space
vector modulation (SVM) current controlled three-phase PWM inverter loaded by
interior permanent magnet synchronous motor (IPMSM), is investigated. The effects
of the switching frequency on the stator space reference voltage vector V. 0) and
then on the inverter operation modes are investigated. The idea of event driven
indicative flag that on-line indicates the inverter mode of operationis presented.
Computer simulation to compare the SVM performance at different switching
ikquencies is developed. Effects of changing the inverter dc link voltage, reference
speed and mechanical load torque on the inverter modes of operationhave been
presented.