Analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters

In islanded microgrids, distributed generations (DGs) have been increasingly employed through voltage source inverters (VSIs). When multiple VSIs operate in parallel, it is important to properly share the load power among them. This paper reveals that voltage measurement errors may deteriorate the p...

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Main Authors: Qi, Yang, Liu, Jiazhe, Tang, Yi, Kaushik, Rajashekara
Other Authors: School of Electrical and Electronic Engineering
Format: Conference or Workshop Item
Language:English
Published: 2019
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Online Access:https://hdl.handle.net/10356/107017
http://hdl.handle.net/10220/49479
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1070172021-01-05T07:01:25Z Analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters Qi, Yang Liu, Jiazhe Tang, Yi Kaushik, Rajashekara School of Electrical and Electronic Engineering Interdisciplinary Graduate School (IGS) 2019 IEEE Energy Conversion Congress and Exhibition (ECCE) Energy Research Institute @ NTU (ERI@N) Engineering::Electrical and electronic engineering Islanded Microgrids Parallel Inverters In islanded microgrids, distributed generations (DGs) have been increasingly employed through voltage source inverters (VSIs). When multiple VSIs operate in parallel, it is important to properly share the load power among them. This paper reveals that voltage measurement errors may deteriorate the power-sharing performance by injecting both positive- and negative-sequence circulating currents. To solve this problem, a combined feedforward and feedback voltage control scheme is proposed. Specifically, the feedforward control is utilized to attenuate the negative impact caused by voltage measurement errors, while the feedback control is adopted for the harmonic mitigation. One salient advantage is that the proposed control scheme is fully decentralized and hence does not require any communications among DGs. Finally, Hardware-in-loop (HIL) simulation results are provided for verification. Accepted version 2019-07-29T05:33:38Z 2019-12-06T22:23:09Z 2019-07-29T05:33:38Z 2019-12-06T22:23:09Z 2019 Conference Paper Qi, Y., Liu, J., Tang, Y., & Kaushik, R. (2019). Analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters. 2019 IEEE Energy Conversion Congress and Exhibition (ECCE). https://hdl.handle.net/10356/107017 http://hdl.handle.net/10220/49479 en © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. 6 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Islanded Microgrids
Parallel Inverters
spellingShingle Engineering::Electrical and electronic engineering
Islanded Microgrids
Parallel Inverters
Qi, Yang
Liu, Jiazhe
Tang, Yi
Kaushik, Rajashekara
Analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters
description In islanded microgrids, distributed generations (DGs) have been increasingly employed through voltage source inverters (VSIs). When multiple VSIs operate in parallel, it is important to properly share the load power among them. This paper reveals that voltage measurement errors may deteriorate the power-sharing performance by injecting both positive- and negative-sequence circulating currents. To solve this problem, a combined feedforward and feedback voltage control scheme is proposed. Specifically, the feedforward control is utilized to attenuate the negative impact caused by voltage measurement errors, while the feedback control is adopted for the harmonic mitigation. One salient advantage is that the proposed control scheme is fully decentralized and hence does not require any communications among DGs. Finally, Hardware-in-loop (HIL) simulation results are provided for verification.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Qi, Yang
Liu, Jiazhe
Tang, Yi
Kaushik, Rajashekara
format Conference or Workshop Item
author Qi, Yang
Liu, Jiazhe
Tang, Yi
Kaushik, Rajashekara
author_sort Qi, Yang
title Analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters
title_short Analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters
title_full Analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters
title_fullStr Analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters
title_full_unstemmed Analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters
title_sort analysis and mitigation of voltage measurement errors for three-phase parallel voltage source inverters
publishDate 2019
url https://hdl.handle.net/10356/107017
http://hdl.handle.net/10220/49479
_version_ 1688665674826645504