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Virtual Energy Storage Control Strategy for Virtual DC Motor
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Peng TANG, Hongwei LI, Tong LIU, Changkun GAN, Lidan ZHANG
Journal of Power Supply | 2024, 22(5) : 260 - 268
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Journal of Power Supply | 2024, 22(5): 260-268
• Battery and Energy Storage •
Virtual Energy Storage Control Strategy for Virtual DC Motor
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Peng TANG, Hongwei LI, Tong LIU, Changkun GAN, Lidan ZHANG
Affiliations
  • School of Electrical Engineering and Information Southwest Petroleum University Chengdu 610500 China
Published: 2024-09-30 doi: 10.13234/j.issn.2095-2805.2024.5.260
Outline
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Virtual DC motor(VDCM) control has been widely applied in suppressing the power fluctuations of DC microgrid and improving the voltage stability of DC bus. Due to the randomness and uncertainty of distributed generations in microgrid, as well as the load switching in microgrid, the DC bus voltage will fluctuate greatly. To improve the regulation capability of bus voltage, a virtual energy storage control strategy based on the coordination of VDCM control and controllable load is proposed by using the regulation capability of controllable load and the virtual motor control of load converter. By adjusting the angular speed of the virtual motor, the power consumption of the controllable load can be adjusted to compensate the fluctuation of bus power and improve the stability of bus voltage. In addition, the relationship between the rotational kinetic energy of VDCM and the charging and discharging energy of the DC capacitor is established. Finally, a simulation model is built on the MATLAB/Simulink platform to verify the effectiveness of the proposed control strategy.

DC microgrid  /  virtual DC motor(VDCM)  /  DC converter  /  virtual energy storage  /  simulation analysis
Peng TANG, Hongwei LI, Tong LIU, Changkun GAN, Lidan ZHANG. Virtual Energy Storage Control Strategy for Virtual DC Motor[J]. Journal of Power Supply, 2024 , 22 (5) : 260 -268 . DOI: 10.13234/j.issn.2095-2805.2024.5.260
Funding
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  • National Natural Science Foundation of China(51607151)
Appendix
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Year 2024 volume 22 Issue 5
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361
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Article Info
doi: 10.13234/j.issn.2095-2805.2024.5.260
  • Receive Date：2021-07-21
  • Online Date：2025-07-20
  • Published：2024-09-30
Article Data
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History
  • Received：2021-07-21
  • Revised：2021-09-25
  • Accepted：2021-10-11
Funding
National Natural Science Foundation of China(51607151)
Affiliations
    School of Electrical Engineering and Information Southwest Petroleum University Chengdu 610500 China
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