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Coupled Harmonic Admittance Identification Based on Least Square Estimation

Author

Listed:
  • Yaqiong Li

    (State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute (GEIRI), Beijing 102209, China)

  • Zhanfeng Deng

    (State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute (GEIRI), Beijing 102209, China)

  • Tongxun Wang

    (State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute (GEIRI), Beijing 102209, China)

  • Guoliang Zhao

    (State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute (GEIRI), Beijing 102209, China)

  • Shengjun Zhou

    (State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute (GEIRI), Beijing 102209, China)

Abstract

Norton equivalent circuit is a commonly used model in estimating harmonic current emissions of harmonic sources. It however cannot reflect the mutual coupling relationships among voltage and current in different harmonic orders. This paper proposes a new method to identify parameters in a coupled harmonic admittance model. The proposed method is conducted using voltage and current measurements and is based on least square estimation technique. The effectiveness of the method is verified through time-domain simulations for a grid-connected converter and also through field data obtained from a ±800 kV converter station. The experimental results showed that the proposed method presents higher accuracy in terms of harmonic current emission estimation compared with three Norton-base methods.

Suggested Citation

  • Yaqiong Li & Zhanfeng Deng & Tongxun Wang & Guoliang Zhao & Shengjun Zhou, 2018. "Coupled Harmonic Admittance Identification Based on Least Square Estimation," Energies, MDPI, vol. 11(10), pages 1-15, September.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:10:p:2600-:d:172864
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    References listed on IDEAS

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    1. Adriana Trejos & Daniel Gonzalez & Carlos Andres Ramos-Paja, 2012. "Modeling of Step-up Grid-Connected Photovoltaic Systems for Control Purposes," Energies, MDPI, vol. 5(6), pages 1-27, June.
    2. Adedotun J. Agbemuko & José Luis Domínguez-García & Eduardo Prieto-Araujo & Oriol Gomis-Bellmunt, 2018. "Impedance Modelling and Parametric Sensitivity of a VSC-HVDC System: New Insights on Resonances and Interactions," Energies, MDPI, vol. 11(4), pages 1-24, April.
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    Cited by:

    1. Yaroslav Shklyarskiy & Aleksandr Skamyin & Iaroslav Vladimirov & Farit Gazizov, 2020. "Distortion Load Identification Based on the Application of Compensating Devices," Energies, MDPI, vol. 13(6), pages 1-13, March.
    2. Muhammad Abdullah & Tahir N. Malik & Ali Ahmed & Muhammad F. Nadeem & Irfan A. Khan & Rui Bo, 2021. "A Novel Hybrid GWO-LS Estimator for Harmonic Estimation Problem in Time Varying Noisy Environment," Energies, MDPI, vol. 14(9), pages 1-26, May.

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