A new configuration for four-switch three-phase inverters based on a switched-capacitor step-up cell for electric vehicles application

Authors

ALIREZA LAHOOTI ESHKEVARI
ALI MOSALLANEJAD
Mohammad Sadegh Sepasian

DOI

10.3906/elk-2005-141

Abstract

This paper proposes a new configuration for four-switch three-phase inverters based on a step-up switchedcapacitor cell, which is called switched-capacitor four-switch three-phase inverter (SCFSTPI). This converter includes eight power switches and two DC-link capacitors. Voltage step-up feature, high efficiency, integrated structure, and bidirectional power flow are the main contribution of this new configuration. A modified space vector modulation (SVM) strategy is presented to generate appropriate pulses for the converter. This modulation method also eliminates the effect of capacitors voltage imbalance problem on the inverter output voltage and current. Simulation and experimental results are presented and investigated to confirm the performance of this topology. Results validate the operation of the proposed topology and its modulation. SCFSTPI is applicable in electric vehicle (EV) drive systems and similar applications that need step-up inverters.

Keywords

Switched-capacitor, three-phase inverter, space vector modulation, four-switch inverter, step-up inverter

First Page

3402

Last Page

3418

Recommended Citation

ESHKEVARI, ALIREZA LAHOOTI; MOSALLANEJAD, ALI; and Sepasian, Mohammad Sadegh (2020) "A new configuration for four-switch three-phase inverters based on a switched-capacitor step-up cell for electric vehicles application," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 28: No. 6, Article 21. https://doi.org/10.3906/elk-2005-141
Available at: https://journals.tubitak.gov.tr/elektrik/vol28/iss6/21