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Free Switching Control Strategy for Multi-Operation Modes of Multi-Port Energy Router in Distribution Area

Author

Listed:
  • Shumei Chi

    (College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China)

  • Zhipeng Lv

    (College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China
    Shanghai Energy Interconnect Research Institute Co., Ltd., Shanghai 200120, China)

  • Lan Liu

    (China Electric Power Research Institute Co., Ltd., Beijing 100192, China)

  • Yang Shan

    (Zenergy Tech Co., Ltd., Nanjing 211500, China)

Abstract

For the distribution area with a high penetration rate of new energy, the traditional power supply system has some problems, such as a single form of power supply and low utilization of new energy. Because the multi-port energy router can realize the interconnection and complementation of multiple energy forms, it has become the key piece of equipment in the hybrid AC/DC distribution area. Nevertheless, restricted by the existing control strategy, the performance of the energy router in complex operation mode switching and coordinated control still needs to be further improved. To address this issue, the free switching control strategy is proposed in this paper. Firstly, the topology and model of the multi-port energy router are designed and established. Secondly, the operation mode of the system is analyzed, and the control strategy of each port is designed. Then, a reference power calculation method suitable for multi-mode operation is derived. Based on this, the control strategy does not need to be changed when operation modes are switched. Furthermore, the extended state observer is introduced to track and compensate for the new energy disturbance, which can improve the power quality of the system. Finally, the simulation and experimental results show that the proposed control strategy of the multi-port energy router can realize flexible and controllable power transmission among various modules in the distribution area and the free switching of multi-operation modes without changing the control strategy.

Suggested Citation

  • Shumei Chi & Zhipeng Lv & Lan Liu & Yang Shan, 2021. "Free Switching Control Strategy for Multi-Operation Modes of Multi-Port Energy Router in Distribution Area," Energies, MDPI, vol. 14(23), pages 1-24, November.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:23:p:7860-:d:686273
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    References listed on IDEAS

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    1. Thanh Hai Nguyen & Tan Luong Van & Asif Nawaz & Ammar Natsheh, 2021. "Feedback Linearization-Based Control Strategy for Interlinking Inverters of Hybrid AC/DC Microgrids with Seamless Operation Mode Transition," Energies, MDPI, vol. 14(18), pages 1-17, September.
    2. Vojko Matko & Barbara Brezovec, 2018. "Improved Data Center Energy Efficiency and Availability with Multilayer Node Event Processing," Energies, MDPI, vol. 11(9), pages 1-17, September.
    3. Indrek Roasto & Oleksandr Husev & Mahdiyyeh Najafzadeh & Tanel Jalakas & Jose Rodriguez, 2019. "Voltage Source Operation of the Energy-Router Based on Model Predictive Control," Energies, MDPI, vol. 12(10), pages 1-15, May.
    4. Jing Li & Hongda Cai & Pengcheng Yang & Wei Wei, 2021. "A Bus-Sectionalized Hybrid AC/DC Microgrid: Concept, Control Paradigm, and Implementation," Energies, MDPI, vol. 14(12), pages 1-24, June.
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    Cited by:

    1. Deng, Jingchuan & Wang, Xinsheng & Chen, Tao & Meng, Fangang, 2023. "An energy router based on multi-hybrid energy storage system with energy coordinated management strategy in island operation mode," Renewable Energy, Elsevier, vol. 212(C), pages 274-284.
    2. Paweł Dworak & Andrzej Mrozik & Agata Korzelecka-Orkisz & Adam Tański & Krzysztof Formicki, 2023. "Energy Self-Sufficiency of a Salmonids Breeding Facility in the Recirculating Aquaculture System," Energies, MDPI, vol. 16(6), pages 1-22, March.

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