Design and Development of a Multiphase Inverter for Automotive Applications

Rodrigo Parizotto; Evandro Claiton Goltz; Ederson dos Reis; Paulo Roberto Eckert

doi:10.18618/REP.2022.2.0033

Authors

Rodrigo Parizotto Universidade Federal do Rio Grande do Sul, Porto Alegre - RS, Brazil
Evandro Claiton Goltz Universidade Federal de Santa Maria, Santa Maria - RS, Brazil
Ederson dos Reis
Paulo Roberto Eckert Universidade Federal do Rio Grande do Sul, Porto Alegre - RS, Brazil

DOI:

https://doi.org/10.18618/REP.2022.2.0033

Keywords:

Multi-star inverter, Multiphase inverter, SiC MOSFET, Automotive inverter, YASA motor

Abstract

This work describes the development of a multiphase inverter that can operate as a platform for driving and testing electrical machines with up to 15 phases, in addition, it can operate with a fundamental frequency of up to 1 kHz and a switching frequency of 100 kHz. Therefore, a multiphase voltage source inverter (VSI) topology using SiC MOSFETs and approved components for automotive applications was designed and constructed. The developed platform is composed of independent power modules and a control module with technology that uses only a single microcontroller capable of generating all signals with pulse width modulation (PWM). To validate the inverter, experimental tests were carried out with a YASA (Yokeless and Segmented Armature) machine that can operate with 3, 5, or 15 phases and also with multi-star connections, one with three independent systems of five phases and another with five independent three-phase systems. Experimental results show that the inverter is capable of driving and testing multiphase machines with a wide variety of electrical connections using high fundamental and carrier frequencies. Therefore, the developed platform is an important tool that allows the testing of multiphase and multi-star electrical machines operating under the most diverse configurations and operating conditions.

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Author Biographies

Rodrigo Parizotto, Universidade Federal do Rio Grande do Sul, Porto Alegre - RS, Brazil

was born in São Marcos, RS, Brazil, in 1987. He received the B.Eng. degree in Electrical Engineering from the University of Caxias do Sul (UCS) in 2015, and the M.Sc. degree in Electrical Engineering from the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil, in 2021.

Evandro Claiton Goltz, Universidade Federal de Santa Maria, Santa Maria - RS, Brazil

He is currently Project Manager in the company Inbrasel, working with the research and development of industrial machines. His research interests include the design and modeling of power inverters applied to electric mobility.

Ederson dos Reis

was born in Caxias do Sul, Brazil, RS in 1975. He received a degree in Electrical Engineering from the University of Caxias do Sul (UCS), Bento Gonçalves, RS, Brazil in 2015.

He is currently a managing partner of the company Style Equipamentos Eletrônicos. He has experience in the field of electrical engineering, with an emphasis on industrial electronics and electronic device development. He is currently studying at the Federal University of Rio Grande do Sul (UFRGS) with the aim of obtaining a master’s degree.

Paulo Roberto Eckert, Universidade Federal do Rio Grande do Sul, Porto Alegre - RS, Brazil

reveived the B.Eng., M.Sc. and Ph.D. degrees in electrical engineering from the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil, in 2007, 2012, and 2016, respectively.

He is currently an Associate Professor with the Department of Electrical Enginnering and a Researcher with the Laboratory of Electrical Machines, Drives and Energy, UFRGS. His research interests include design and modeling of electromagnetic devices and electric drives.

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