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Research on Improved VSG Control Algorithm Based on Capacity-Limited Energy Storage System

Author

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  • Yanfeng Ma

    (Department of Electrical Engineering, North China Electric Power University, Baoding 071003, China)

  • Zijian Lin

    (Department of Electrical Engineering, North China Electric Power University, Baoding 071003, China)

  • Rennan Yu

    (Fuzhou Power Supply Company of State Grid Fujian Electric Power Company, Fuzhou 350003, China)

  • Shuqiang Zhao

    (Department of Electrical Engineering, North China Electric Power University, Baoding 071003, China)

Abstract

A large scale of renewable energy employing grid connected electronic inverters fail to contribute inertia or damping to power systems, and, therefore, may bring negative effects to the stability of power system. As a solution, an advanced Virtual Synchronous Generator (VSG) control technology based on Hamilton approach is introduced in this paper firstly to support the frequency and enhance the suitability and robustness of the system. The charge and discharge process of power storage devices forms the virtual inertia and damping of VSG, and, therefore, limits on storage capacity may change the coefficients of VSG. To provide a method in keeping system output in an acceptable level with the capacity restriction in a transient period, an energy control algorithm is designed for VSG adaptive control. Finally, simulations are conducted in DIgSILENT to demonstrate the correctness of the algorithm. The demonstration shows: (1) the proposed control model aims at better system robustness and stability; and (2) the model performs in the environment closer to practical engineering by fitting the operation state of storage system.

Suggested Citation

  • Yanfeng Ma & Zijian Lin & Rennan Yu & Shuqiang Zhao, 2018. "Research on Improved VSG Control Algorithm Based on Capacity-Limited Energy Storage System," Energies, MDPI, vol. 11(3), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:3:p:677-:d:136711
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    Citations

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    Cited by:

    1. Hector Beltran & Sam Harrison & Agustí Egea-Àlvarez & Lie Xu, 2020. "Techno-Economic Assessment of Energy Storage Technologies for Inertia Response and Frequency Support from Wind Farms," Energies, MDPI, vol. 13(13), pages 1-21, July.
    2. Yun Zeng & Jing Qian & Fengrong Yu & Hong Mei & Shige Yu, 2021. "Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory," Energies, MDPI, vol. 14(21), pages 1-14, October.
    3. Bin Yang & Kangli Liu & Sen Zhang & Jianfeng Zhao, 2018. "Design and Implementation of Novel Multi-Converter-Based Unified Power Quality Conditioner for Low-Voltage High-Current Distribution System," Energies, MDPI, vol. 11(11), pages 1-21, November.

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