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

Weihua Zhou*, Yanbo Wang, Zhe Chen

*Corresponding author

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

1 Citation (Scopus)
7 Downloads (Pure)

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 languageEnglish
Title of host publicationProceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Number of pages8
PublisherIEEE Press
Publication dateMay 2019
Pages2948-2955
Publication statusPublished - May 2019
Event2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) - Busan, Korea, Republic of
Duration: 27 May 201930 May 2019

Conference

Conference2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
CountryKorea, Republic of
CityBusan
Period27/05/201930/05/2019

Fingerprint

Transfer functions
Identification (control systems)
Frequency response
Electric potential
Polynomials
Scanning
Controllers
Networks (circuits)

Keywords

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

Cite this

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) (pp. 2948-2955). IEEE Press.
Zhou, Weihua ; Wang, Yanbo ; Chen, Zhe. / A gray-box parameters identification method of voltage source converter using vector fitting algorithm. Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia). IEEE Press, 2019. pp. 2948-2955
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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.",
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author = "Weihua Zhou and Yanbo Wang and Zhe Chen",
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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). IEEE Press, pp. 2948-2955, 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia), Busan, Korea, Republic of, 27/05/2019.

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.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-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

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EP - 2955

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

PB - IEEE Press

ER -

Zhou W, Wang Y, Chen Z. 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). IEEE Press. 2019. p. 2948-2955