A New Tuning Method of Multi-Resonant Current Controllers for Grid-Connected Voltage Source Converters

Chuan Xie, Xin Zhao, Kai Li, Jianxiao Zou, Josep M. Guerrero

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6 Citationer (Scopus)
105 Downloads (Pure)

Resumé

Resonant controllers (RSCs) are widely adopted for controlling power converters since they can track AC signals of both positive and negative sequences without steady-state error. However, the performance of RSCs has not been fully exploited due to the improper phase compensation angle and insufficient controller gain. In this paper, a novel controller parameters design method, which is based on the system error transfer function, is proposed to further explore the potential high performance of RSCs. Comparing with the conventional methods, more appropriate phase compensation angles can be obtained, which means that the stable region of the controller gain is extended. Since the proposed RSCs design method is able to maximize the controller gain, the controller sensitivity to system frequency variations can be decreased and the system response speed can be improved. The RSCs tuning procedure is given in detail, and comparative experiments between the proposed method and the conventional method are performed to validate the superiority of the proposed method.
OriginalsprogEngelsk
Artikelnummer8355497
TidsskriftIEEE Journal of Emerging and Selected Topics in Power Electronics
Vol/bind7
Udgave nummer1
Sider (fra-til)458-466
Antal sider9
ISSN2168-6777
DOI
StatusUdgivet - mar. 2019

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Tuning
Controllers
Electric potential
Power converters
Transfer functions

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title = "A New Tuning Method of Multi-Resonant Current Controllers for Grid-Connected Voltage Source Converters",
abstract = "Resonant controllers (RSCs) are widely adopted for controlling power converters since they can track AC signals of both positive and negative sequences without steady-state error. However, the performance of RSCs has not been fully exploited due to the improper phase compensation angle and insufficient controller gain. In this paper, a novel controller parameters design method, which is based on the system error transfer function, is proposed to further explore the potential high performance of RSCs. Comparing with the conventional methods, more appropriate phase compensation angles can be obtained, which means that the stable region of the controller gain is extended. Since the proposed RSCs design method is able to maximize the controller gain, the controller sensitivity to system frequency variations can be decreased and the system response speed can be improved. The RSCs tuning procedure is given in detail, and comparative experiments between the proposed method and the conventional method are performed to validate the superiority of the proposed method.",
keywords = "Current control, Resonant controller, Phase compensation, Frequency sensitivity, Voltage source converters (VSC)",
author = "Chuan Xie and Xin Zhao and Kai Li and Jianxiao Zou and Guerrero, {Josep M.}",
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A New Tuning Method of Multi-Resonant Current Controllers for Grid-Connected Voltage Source Converters. / Xie, Chuan; Zhao, Xin; Li, Kai; Zou, Jianxiao; Guerrero, Josep M.

I: IEEE Journal of Emerging and Selected Topics in Power Electronics, Bind 7, Nr. 1, 8355497, 03.2019, s. 458-466.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - A New Tuning Method of Multi-Resonant Current Controllers for Grid-Connected Voltage Source Converters

AU - Xie, Chuan

AU - Zhao, Xin

AU - Li, Kai

AU - Zou, Jianxiao

AU - Guerrero, Josep M.

PY - 2019/3

Y1 - 2019/3

N2 - Resonant controllers (RSCs) are widely adopted for controlling power converters since they can track AC signals of both positive and negative sequences without steady-state error. However, the performance of RSCs has not been fully exploited due to the improper phase compensation angle and insufficient controller gain. In this paper, a novel controller parameters design method, which is based on the system error transfer function, is proposed to further explore the potential high performance of RSCs. Comparing with the conventional methods, more appropriate phase compensation angles can be obtained, which means that the stable region of the controller gain is extended. Since the proposed RSCs design method is able to maximize the controller gain, the controller sensitivity to system frequency variations can be decreased and the system response speed can be improved. The RSCs tuning procedure is given in detail, and comparative experiments between the proposed method and the conventional method are performed to validate the superiority of the proposed method.

AB - Resonant controllers (RSCs) are widely adopted for controlling power converters since they can track AC signals of both positive and negative sequences without steady-state error. However, the performance of RSCs has not been fully exploited due to the improper phase compensation angle and insufficient controller gain. In this paper, a novel controller parameters design method, which is based on the system error transfer function, is proposed to further explore the potential high performance of RSCs. Comparing with the conventional methods, more appropriate phase compensation angles can be obtained, which means that the stable region of the controller gain is extended. Since the proposed RSCs design method is able to maximize the controller gain, the controller sensitivity to system frequency variations can be decreased and the system response speed can be improved. The RSCs tuning procedure is given in detail, and comparative experiments between the proposed method and the conventional method are performed to validate the superiority of the proposed method.

KW - Current control

KW - Resonant controller

KW - Phase compensation

KW - Frequency sensitivity

KW - Voltage source converters (VSC)

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M3 - Journal article

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EP - 466

JO - I E E E Journal of Emerging and Selected Topics in Power Electronics

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