A gray-box parameters identification method of voltage source converter using vector fitting algorithm

Weihua Zhou; Yanbo Wang; Zhe Chen

A gray-box parameters identification method of voltage source converter using vector fitting algorithm

^*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

16 Citations (Scopus)

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Abstract

This paper presents a vector fitting (VF) algorithmbased gray-box structure and parameters identification method for voltage source converter(VSC). Terminal impedance frequency responses of VSC is first measured by frequency scanning method. Then, these impedance frequency responses are fitted by a polynomial transfer function using VF algorithm. Finally, the theoretical terminal impedance formulas of possible control structures are compared with the fitted transfer function. The actual control structure can be selected, and the actual internal parameters can be identified. Simulation results are given to validate effectiveness of the proposed method. The proposed gray-box method can identify both the circuit and controller information even if no internal information of the VSC is provided by vendors due to industrial confidence. In addition,
the effect of measurement noise on parameters identification accuracy can be mitigated by increasing the order of the fitted transfer function.

Original language	English
Title of host publication	Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Number of pages	8
Publisher	IEEE Press
Publication date	May 2019
Pages	2948-2955
Article number	8797250
ISBN (Electronic)	9788957083130
Publication status	Published - May 2019
Event	2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) - Busan, Korea, Republic of Duration: 27 May 2019 → 30 May 2019

Conference

Conference	2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Country/Territory	Korea, Republic of
City	Busan
Period	27/05/2019 → 30/05/2019

Series	International Conference on Power Electronics
ISSN	2150-6078

Keywords

Gray-box method
Parameters identification
Vector fitting algorithm
Voltage source converter

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https://ieeexplore.ieee.org/document/8797250

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@inproceedings{b1e94f65618149a7ad34ab0c3b8d1f44,

title = "A gray-box parameters identification method of voltage source converter using vector fitting algorithm",

abstract = "This paper presents a vector fitting (VF) algorithmbased gray-box structure and parameters identification method for voltage source converter(VSC). Terminal impedance frequency responses of VSC is first measured by frequency scanning method. Then, these impedance frequency responses are fitted by a polynomial transfer function using VF algorithm. Finally, the theoretical terminal impedance formulas of possible control structures are compared with the fitted transfer function. The actual control structure can be selected, and the actual internal parameters can be identified. Simulation results are given to validate effectiveness of the proposed method. The proposed gray-box method can identify both the circuit and controller information even if no internal information of the VSC is provided by vendors due to industrial confidence. In addition,the effect of measurement noise on parameters identification accuracy can be mitigated by increasing the order of the fitted transfer function.",

keywords = "Gray-box method, Parameters identification, Vector fitting algorithm, Voltage source converter",

author = "Weihua Zhou and Yanbo Wang and Zhe Chen",

year = "2019",

month = may,

language = "English",

series = "International Conference on Power Electronics",

publisher = "IEEE Press",

pages = "2948--2955",

booktitle = "Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)",

note = "2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) ; Conference date: 27-05-2019 Through 30-05-2019",

}

Zhou, W, Wang, Y & Chen, Z 2019, A gray-box parameters identification method of voltage source converter using vector fitting algorithm. in Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)., 8797250, IEEE Press, International Conference on Power Electronics, pp. 2948-2955, 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia), Busan, Korea, Republic of, 27/05/2019. <https://ieeexplore.ieee.org/document/8797250>

A gray-box parameters identification method of voltage source converter using vector fitting algorithm. / Zhou, Weihua; Wang, Yanbo ; Chen, Zhe.
Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia). IEEE Press, 2019. p. 2948-2955 8797250 (International Conference on Power Electronics).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - A gray-box parameters identification method of voltage source converter using vector fitting algorithm

AU - Zhou, Weihua

AU - Wang, Yanbo

AU - Chen, Zhe

PY - 2019/5

Y1 - 2019/5

N2 - This paper presents a vector fitting (VF) algorithmbased gray-box structure and parameters identification method for voltage source converter(VSC). Terminal impedance frequency responses of VSC is first measured by frequency scanning method. Then, these impedance frequency responses are fitted by a polynomial transfer function using VF algorithm. Finally, the theoretical terminal impedance formulas of possible control structures are compared with the fitted transfer function. The actual control structure can be selected, and the actual internal parameters can be identified. Simulation results are given to validate effectiveness of the proposed method. The proposed gray-box method can identify both the circuit and controller information even if no internal information of the VSC is provided by vendors due to industrial confidence. In addition,the effect of measurement noise on parameters identification accuracy can be mitigated by increasing the order of the fitted transfer function.

AB - This paper presents a vector fitting (VF) algorithmbased gray-box structure and parameters identification method for voltage source converter(VSC). Terminal impedance frequency responses of VSC is first measured by frequency scanning method. Then, these impedance frequency responses are fitted by a polynomial transfer function using VF algorithm. Finally, the theoretical terminal impedance formulas of possible control structures are compared with the fitted transfer function. The actual control structure can be selected, and the actual internal parameters can be identified. Simulation results are given to validate effectiveness of the proposed method. The proposed gray-box method can identify both the circuit and controller information even if no internal information of the VSC is provided by vendors due to industrial confidence. In addition,the effect of measurement noise on parameters identification accuracy can be mitigated by increasing the order of the fitted transfer function.

KW - Gray-box method

KW - Parameters identification

KW - Vector fitting algorithm

KW - Voltage source converter

M3 - Article in proceeding

T3 - International Conference on Power Electronics

SP - 2948

EP - 2955

BT - Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)

PB - IEEE Press

T2 - 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)

Y2 - 27 May 2019 through 30 May 2019

ER -

A gray-box parameters identification method of voltage source converter using vector fitting algorithm

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