A System Design Method of High-Frequency Class-D Inverter for Wideband Current Control

Hiroki Kurumatani; Seiichiro Katsura

doi:10.23919/IPEC.2018.8507951

A System Design Method of High-Frequency Class-D Inverter for Wideband Current Control

Hiroki Kurumatani, Seiichiro Katsura

Department of System Design Engineering

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

Abstract

This paper reports a system design method of high-frequency class-D inverter for wideband current control for robotics in human society. There is a problem that conventional inverters are restricted by a switching frequency and hence the motor can not drive in a high-frequency range. Since a control system requires a severe condition as for a phase lag, such restriction should be removed. To overcome this problem, the paper designs a system with providing three pillars: a controller to attain a robustness, hardware improvement and a modulation technique to increase a bandwidth, and design policy for a processor to treat a high-frequency signal. Then, a GaN-HEMT-based class-D inverter and an FPGA-based controller are prepared to support these pillars. The paper proves an importance of the integrated design.

Original language	English
Title of host publication	2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	669-674
Number of pages	6
ISBN (Electronic)	9784886864055
DOIs	https://doi.org/10.23919/IPEC.2018.8507951
Publication status	Published - 2018 Oct 22
Event	8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan Duration: 2018 May 20 → 2018 May 24

Other

Other	8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Country	Japan
City	Niigata
Period	18/5/20 → 18/5/24

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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A System Design Method of High-Frequency Class-D Inverter for Wideband Current Control. / Kurumatani, Hiroki; Katsura, Seiichiro.

2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 669-674 8507951.

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

Kurumatani, H & Katsura, S 2018, A System Design Method of High-Frequency Class-D Inverter for Wideband Current Control. in 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018., 8507951, Institute of Electrical and Electronics Engineers Inc., pp. 669-674, 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, Niigata, Japan, 18/5/20. https://doi.org/10.23919/IPEC.2018.8507951

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abstract = "This paper reports a system design method of high-frequency class-D inverter for wideband current control for robotics in human society. There is a problem that conventional inverters are restricted by a switching frequency and hence the motor can not drive in a high-frequency range. Since a control system requires a severe condition as for a phase lag, such restriction should be removed. To overcome this problem, the paper designs a system with providing three pillars: a controller to attain a robustness, hardware improvement and a modulation technique to increase a bandwidth, and design policy for a processor to treat a high-frequency signal. Then, a GaN-HEMT-based class-D inverter and an FPGA-based controller are prepared to support these pillars. The paper proves an importance of the integrated design.",

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