Mitigation of Motor Overvoltage in SiC-Device-Based Drives using a Soft-Switching Inverter

Wenzhi Zhou; Mohamed S.  Diab; Xibo Yuan

doi:10.1109/ECCE44975.2020.9236099

Mitigation of Motor Overvoltage in SiC-Device-Based Drives using a Soft-Switching Inverter

Wenzhi Zhou, Mohamed S. Diab, Xibo Yuan

University of Bristol

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

7 Citations (Scopus)

Abstract

In SiC motor drives, the high-voltage slew rate (dv/dt) of switching transients results in excessive motor overvoltage, due to the reflected wave phenomenon (RWP), which stands behind the premature failure of motor winding insulation while raises electromagnetic interference (EMI) problems. This paper adopts a soft-switching inverter topology, denoted as the auxiliary resonant commutated pole inverter (ARCPI), to mitigate the motor overvoltage caused by the RWP in SiC-based cable-fed drives. The performance of the SiC motor drive system under the RWP is first investigated to determine how the motor overvoltage is affected by the dv/dt of the inverter output voltage and the cable length. Then, a SiC ARCPI with profiled output voltage slew rate is utilized as a candidate solution to mitigate the RWP in the cable-fed motor drive. The effectiveness of the presented mitigation approach is experimentally verified, where it is shown that the ARCPI can completely eliminate the motor overvoltage and improve the EMI performance at high frequency region (500 kHz onwards) due to the prolonged rise/fall time of the output voltage, compared with the conventional hard-switching inverter.

Original language	English
Title of host publication	2020 IEEE Energy Conversion Congress and Exposition (ECCE)
Publisher	IEEE
Pages	662-669
Number of pages	8
ISBN (Electronic)	978-1-7281-5826-6
ISBN (Print)	978-1-7281-5827-3
DOIs	https://doi.org/10.1109/ECCE44975.2020.9236099
Publication status	Published - 30 Oct 2020
Externally published	Yes
Event	2020 IEEE Energy Conversion Congress and Exposition (ECCE) - Detroit, United States Duration: 11 Oct 2020 → 16 Oct 2020

Publication series

Name	ECCE 2020 - IEEE Energy Conversion Congress and Exposition
Publisher	IEEE
ISSN (Print)	2329-3721
ISSN (Electronic)	2329-3748

Conference

Conference	2020 IEEE Energy Conversion Congress and Exposition (ECCE)
Country/Territory	United States
City	Detroit
Period	11/10/20 → 16/10/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Funding

This work was supported in part by the UK EPSRC under grant EP/S00081X/1.

Funders	Funder number
Engineering and Physical Sciences Research Council	EP/S00081X/1

Keywords

Auxiliary resonant commutated pole inverter (ARCPI)
high dv/dt
motor drives
reflected wave phenomenon
SiC MOSFET
soft-switching inverter

Access to Document

10.1109/ECCE44975.2020.9236099

Cite this

Mitigation of Motor Overvoltage in SiC-Device-Based Drives using a Soft-Switching Inverter. / Zhou, Wenzhi; Diab, Mohamed S. ; Yuan, Xibo.
2020 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2020. p. 662-669 (ECCE 2020 - IEEE Energy Conversion Congress and Exposition).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Zhou, W, Diab, MS & Yuan, X 2020, Mitigation of Motor Overvoltage in SiC-Device-Based Drives using a Soft-Switching Inverter. in 2020 IEEE Energy Conversion Congress and Exposition (ECCE). ECCE 2020 - IEEE Energy Conversion Congress and Exposition, IEEE, pp. 662-669, 2020 IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, United States, 11/10/20. https://doi.org/10.1109/ECCE44975.2020.9236099

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AB - In SiC motor drives, the high-voltage slew rate (dv/dt) of switching transients results in excessive motor overvoltage, due to the reflected wave phenomenon (RWP), which stands behind the premature failure of motor winding insulation while raises electromagnetic interference (EMI) problems. This paper adopts a soft-switching inverter topology, denoted as the auxiliary resonant commutated pole inverter (ARCPI), to mitigate the motor overvoltage caused by the RWP in SiC-based cable-fed drives. The performance of the SiC motor drive system under the RWP is first investigated to determine how the motor overvoltage is affected by the dv/dt of the inverter output voltage and the cable length. Then, a SiC ARCPI with profiled output voltage slew rate is utilized as a candidate solution to mitigate the RWP in the cable-fed motor drive. The effectiveness of the presented mitigation approach is experimentally verified, where it is shown that the ARCPI can completely eliminate the motor overvoltage and improve the EMI performance at high frequency region (500 kHz onwards) due to the prolonged rise/fall time of the output voltage, compared with the conventional hard-switching inverter.

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Mitigation of Motor Overvoltage in SiC-Device-Based Drives using a Soft-Switching Inverter

Abstract

Publication series

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Bibliographical note

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Keywords

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