Novel Dead-Time Compensation Strategy for Wide Current Range in a Three-Phase Inverter

This paper proposes a novel three-phase voltage source inverter dead-time compensation strategy for accurate compensation in wide current regions of the inverter. In particular, an analysis of the output voltage distortion of the inverter, which appears as parasitic components of the switches, was c...

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Main Authors: Jeong-Woo Lim, Hanyoung Bu, Younghoon Cho
Format: Article
Language:English
Published: MDPI AG 2019-01-01
Series:Electronics
Subjects:
Online Access:http://www.mdpi.com/2079-9292/8/1/92
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author Jeong-Woo Lim
Hanyoung Bu
Younghoon Cho
author_facet Jeong-Woo Lim
Hanyoung Bu
Younghoon Cho
author_sort Jeong-Woo Lim
collection DOAJ
description This paper proposes a novel three-phase voltage source inverter dead-time compensation strategy for accurate compensation in wide current regions of the inverter. In particular, an analysis of the output voltage distortion of the inverter, which appears as parasitic components of the switches, was conducted for proper voltage compensation in the low current region, and an on-line compensation voltage controller was proposed. Additionally, a new trapezoidal compensation voltage implementation method using the current phase was proposed to simplify realizing the trapezoidal shape of the three-phase compensation voltages. Finally, when the proposed dead-time compensation strategy was applied, the maximum phase voltage magnitude in the linear modulation voltage regions was defined to achieve smooth operation even at high modulation index. Simulations and experiments were conducted to verify the performance of the proposed dead-time compensation scheme.
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spelling doaj.art-530f8319126a4186953dd44fd673c6e82022-12-22T04:00:51ZengMDPI AGElectronics2079-92922019-01-01819210.3390/electronics8010092electronics8010092Novel Dead-Time Compensation Strategy for Wide Current Range in a Three-Phase InverterJeong-Woo Lim0Hanyoung Bu1Younghoon Cho2Department of Electrical Engineering, Konkuk University, Seoul 05029, KoreaDepartment of Electrical Engineering, Konkuk University, Seoul 05029, KoreaDepartment of Electrical Engineering, Konkuk University, Seoul 05029, KoreaThis paper proposes a novel three-phase voltage source inverter dead-time compensation strategy for accurate compensation in wide current regions of the inverter. In particular, an analysis of the output voltage distortion of the inverter, which appears as parasitic components of the switches, was conducted for proper voltage compensation in the low current region, and an on-line compensation voltage controller was proposed. Additionally, a new trapezoidal compensation voltage implementation method using the current phase was proposed to simplify realizing the trapezoidal shape of the three-phase compensation voltages. Finally, when the proposed dead-time compensation strategy was applied, the maximum phase voltage magnitude in the linear modulation voltage regions was defined to achieve smooth operation even at high modulation index. Simulations and experiments were conducted to verify the performance of the proposed dead-time compensation scheme.http://www.mdpi.com/2079-9292/8/1/92dead-time compensation strategy (DTCS)dead-time compensationtrapezoidal compensation voltagedead-time effectsthree-phase voltage source inverter (VSI) compensation
spellingShingle Jeong-Woo Lim
Hanyoung Bu
Younghoon Cho
Novel Dead-Time Compensation Strategy for Wide Current Range in a Three-Phase Inverter
Electronics
dead-time compensation strategy (DTCS)
dead-time compensation
trapezoidal compensation voltage
dead-time effects
three-phase voltage source inverter (VSI) compensation
title Novel Dead-Time Compensation Strategy for Wide Current Range in a Three-Phase Inverter
title_full Novel Dead-Time Compensation Strategy for Wide Current Range in a Three-Phase Inverter
title_fullStr Novel Dead-Time Compensation Strategy for Wide Current Range in a Three-Phase Inverter
title_full_unstemmed Novel Dead-Time Compensation Strategy for Wide Current Range in a Three-Phase Inverter
title_short Novel Dead-Time Compensation Strategy for Wide Current Range in a Three-Phase Inverter
title_sort novel dead time compensation strategy for wide current range in a three phase inverter
topic dead-time compensation strategy (DTCS)
dead-time compensation
trapezoidal compensation voltage
dead-time effects
three-phase voltage source inverter (VSI) compensation
url http://www.mdpi.com/2079-9292/8/1/92
work_keys_str_mv AT jeongwoolim noveldeadtimecompensationstrategyforwidecurrentrangeinathreephaseinverter
AT hanyoungbu noveldeadtimecompensationstrategyforwidecurrentrangeinathreephaseinverter
AT younghooncho noveldeadtimecompensationstrategyforwidecurrentrangeinathreephaseinverter