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Integral Plus Resonant Sliding Mode Direct Power Control for VSC-HVDC Systems under Unbalanced Grid Voltage Conditions

Author

Listed:
  • Weipeng Yang

    (School of Electrical Engineering, Xi’an Jiaotong University, No. 28, West Xianning Road, Xi’an 710049, China)

  • Aimin Zhang

    (School of Electrical Engineering, Xi’an Jiaotong University, No. 28, West Xianning Road, Xi’an 710049, China)

  • Jungang Li

    (Xuji Group Corporation, State Grid Corporation of China, No. 1298, Xuji Road, Xuchang 461000, China)

  • Guoqi Li

    (Department of Precision Instrument, Tsinghua University, No. 30, Shuangqing Road, Beijing 100084, China)

  • Hang Zhang

    (School of Electrical Engineering, Xi’an Jiaotong University, No. 28, West Xianning Road, Xi’an 710049, China)

  • Jianhua Wang

    (School of Electrical Engineering, Xi’an Jiaotong University, No. 28, West Xianning Road, Xi’an 710049, China)

Abstract

An integral plus resonant sliding mode direct power control (IRSMC DPC) strategy for voltage source converter high voltage direct current (VSC-HVDC) systems under unbalanced grid voltage conditions is proposed in this paper. Through detailed instantaneous power flow analysis, a generalized power compensation method, by which the ratio between the amplitude of active and reactive power ripples can be controlled continuously, is obtained. This enables the system to provide flexible power control, so that the desired performance of the system on both the ac and dc sides can be attained under different operating conditions. When the grid voltage is unbalanced, one or both of the active and reactive power terms contain ripples, oscillating at twice the grid frequency, to obtain non-distorted ac current. A power controller consisting of the proportional, integral and resonant control laws is designed using the sliding mode control approach, to achieve accurate power control objective. Simulation studies on a two-terminal VSC-HVDC system using MATLAB/SIMULINK (R2013b, Mathworks, Natick, MA, USA) are conducted to verify the effectiveness of the IRSMC DPC strategy. The results show that this strategy ensures satisfactory performance of the system over a wide range of operating conditions.

Suggested Citation

  • Weipeng Yang & Aimin Zhang & Jungang Li & Guoqi Li & Hang Zhang & Jianhua Wang, 2017. "Integral Plus Resonant Sliding Mode Direct Power Control for VSC-HVDC Systems under Unbalanced Grid Voltage Conditions," Energies, MDPI, vol. 10(10), pages 1-17, October.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:10:p:1528-:d:113913
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    References listed on IDEAS

    as
    1. Hao Wang & Yue Wang & Guozhao Duan & Weihao Hu & Wenti Wang & Zhe Chen, 2017. "An Improved Droop Control Method for Multi-Terminal VSC-HVDC Converter Stations," Energies, MDPI, vol. 10(7), pages 1-13, June.
    2. Haipeng Xie & Zhaohong Bie & Yanling Lin & Chao Zheng, 2017. "A Hybrid Reliability Evaluation Method for Meshed VSC-HVDC Grids," Energies, MDPI, vol. 10(7), pages 1-17, July.
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    Cited by:

    1. Weiming Liu & Tingting Zheng & Ziwen Liu & Zhihua Fan & Yilong Kang & Da Wang & Mingming Zhang & Shihong Miao, 2018. "Active and Reactive Power Compensation Control Strategy for VSC-HVDC Systems under Unbalanced Grid Conditions," Energies, MDPI, vol. 11(11), pages 1-19, November.
    2. Weipeng Yang & Hang Zhang & Jungang Li & Aimin Zhang & Yunhong Zhou & Jianhua Wang, 2018. "PIDR Sliding Mode Current Control with Online Inductance Estimator for VSC-MVDC System Converter Stations under Unbalanced Grid Voltage Conditions," Energies, MDPI, vol. 11(10), pages 1-20, September.

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