Single-phase induction motor drive system using z-source inverter

A. H. Rajaei, M. Mohamadian, S. M. Dehghan, A. Yazdian

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


Employing conventional three-phase inverter in variable speed single-phase drive suffers from limited maximum output voltage applied to motor or voltage utility factor (VUF). In this study, a z-source inverter (ZSI) has been used to drive a single-phase induction motor (SPIM). By the proposed topology, VUF and consequently torque speed characteristic of the single-phase motor is improved. The equations for employing ZSI in SPIM drive and modulation method are described. Results of two simulations using conventional inverter and ZSI are presented. The results show that using ZSI leads to an increase in motor electromagnetic torque compared to conventional three-phase inverter due to improved VUF. The experimental results confirm the theory and simulation.

Original languageEnglish
Pages (from-to)17-25
Number of pages9
JournalIET Electric Power Applications
Issue number1
Publication statusPublished - 15 Jan 2010
Externally publishedYes


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