A 2-in-1 Switched-Capacitor Inverter for Next-Generation Modular Motors

Zhiheng Luo; Hai Nam Vu; Ratul Das; Hanh Phuc Le

doi:10.1109/ECCE53617.2023.10362208

A 2-in-1 Switched-Capacitor Inverter for Next-Generation Modular Motors

Zhiheng Luo, Hai Nam Vu, Ratul Das, Hanh Phuc Le

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper describes a new 3-phase motor drive inverter suitable for low-voltage high-current modular motors. The inverter features a 2-in-1 combination of a switched-capacitor (SC) step-down converter to reduce the input current delivery losses and a 3-phase inverter with full drive power modulation using only 9 low-voltage switches and 3 capacitors. The flying capacitors of the SC inverter can be partially soft-charged utilizing inductance from the stator. A proof-of-concept prototype of the proposed inverter has been built in order to verify the operation and concepts of the switched-capacitor inverter. The preliminary results, including experiments with a commercial DC motor, confirm the feasibility of the design of the proposed inverter.

Original language	English (US)
Title of host publication	2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	5195-5199
Number of pages	5
ISBN (Electronic)	9798350316445
DOIs	https://doi.org/10.1109/ECCE53617.2023.10362208
State	Published - 2023
Externally published	Yes
Event	2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 - Nashville, United States Duration: Oct 29 2023 → Nov 2 2023

Publication series

Name	2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

Conference

Conference	2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Country/Territory	United States
City	Nashville
Period	10/29/23 → 11/2/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

Integrated Modular Machine Drive (IMMD)
Inverter
Modular Motor Driver
Motor Drive
Permanent Magnet (PM) Machine
Switched Capacitor Inverter

Publisher link

10.1109/ECCE53617.2023.10362208

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Cite this

Luo, Z., Vu, H. N., Das, R., & Le, H. P. (2023). A 2-in-1 Switched-Capacitor Inverter for Next-Generation Modular Motors. In 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 (pp. 5195-5199). (2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE53617.2023.10362208

A 2-in-1 Switched-Capacitor Inverter for Next-Generation Modular Motors. / Luo, Zhiheng; Vu, Hai Nam; Das, Ratul et al.
2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023. Institute of Electrical and Electronics Engineers Inc., 2023. p. 5195-5199 (2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Luo, Z, Vu, HN, Das, R & Le, HP 2023, A 2-in-1 Switched-Capacitor Inverter for Next-Generation Modular Motors. in 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023. 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023, Institute of Electrical and Electronics Engineers Inc., pp. 5195-5199, 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023, Nashville, United States, 10/29/23. https://doi.org/10.1109/ECCE53617.2023.10362208

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title = "A 2-in-1 Switched-Capacitor Inverter for Next-Generation Modular Motors",

abstract = "This paper describes a new 3-phase motor drive inverter suitable for low-voltage high-current modular motors. The inverter features a 2-in-1 combination of a switched-capacitor (SC) step-down converter to reduce the input current delivery losses and a 3-phase inverter with full drive power modulation using only 9 low-voltage switches and 3 capacitors. The flying capacitors of the SC inverter can be partially soft-charged utilizing inductance from the stator. A proof-of-concept prototype of the proposed inverter has been built in order to verify the operation and concepts of the switched-capacitor inverter. The preliminary results, including experiments with a commercial DC motor, confirm the feasibility of the design of the proposed inverter.",

keywords = "Integrated Modular Machine Drive (IMMD), Inverter, Modular Motor Driver, Motor Drive, Permanent Magnet (PM) Machine, Switched Capacitor Inverter",

author = "Zhiheng Luo and Vu, {Hai Nam} and Ratul Das and Le, {Hanh Phuc}",

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N2 - This paper describes a new 3-phase motor drive inverter suitable for low-voltage high-current modular motors. The inverter features a 2-in-1 combination of a switched-capacitor (SC) step-down converter to reduce the input current delivery losses and a 3-phase inverter with full drive power modulation using only 9 low-voltage switches and 3 capacitors. The flying capacitors of the SC inverter can be partially soft-charged utilizing inductance from the stator. A proof-of-concept prototype of the proposed inverter has been built in order to verify the operation and concepts of the switched-capacitor inverter. The preliminary results, including experiments with a commercial DC motor, confirm the feasibility of the design of the proposed inverter.

AB - This paper describes a new 3-phase motor drive inverter suitable for low-voltage high-current modular motors. The inverter features a 2-in-1 combination of a switched-capacitor (SC) step-down converter to reduce the input current delivery losses and a 3-phase inverter with full drive power modulation using only 9 low-voltage switches and 3 capacitors. The flying capacitors of the SC inverter can be partially soft-charged utilizing inductance from the stator. A proof-of-concept prototype of the proposed inverter has been built in order to verify the operation and concepts of the switched-capacitor inverter. The preliminary results, including experiments with a commercial DC motor, confirm the feasibility of the design of the proposed inverter.

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A 2-in-1 Switched-Capacitor Inverter for Next-Generation Modular Motors

Abstract

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