• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

ELECTRIC POWER CONSTRUCTION ›› 2022, Vol. 43 ›› Issue (10): 77-86.doi: 10.12204/j.issn.1000-7229.2022.10.008

• Smart Grid • Previous Articles     Next Articles

Multi-mode Coordinated Control Strategy for AC/DC Hybrid Microgrid

LIN Peiyi, MI Yang(), LI Haipeng, JIANG Enyu, SHI Shuai   

  1. School of Electric Power Engineering, Shanghai University of Electric Power, Shanghai 200090, China
  • Received:2022-03-17 Online:2022-10-01 Published:2022-09-29
  • Contact: MI Yang E-mail:348015134@qq.com
  • Supported by:
    National Natural Science Foundation of China(61873159);Natural Science Foundation of Shanghai(22ZR1425500)


A multi-mode coordinated control strategy is proposed for isolated AC/DC hybrid microgrid, which considers load state and the charge state of the energy storage subnet. In the state judgment level, the charged state of energy storage is divided into five modes, and the network operating conditions corresponding to the six power interaction states between subnets under each mode are planned in detail. The priority of energy storage subnets participating in power interaction among subnets changes with the state of charge. Power mutual-aid level controls the transmission power of bidirectional interlinking converters between subnets. At the local level, droop control is used to keep the subnet autonomous. This strategy can reduce unnecessary power interaction losses, and prevent the energy storage subnets from losing power regulation ability due to excessive charge and discharge in advance. Simulation models on the MATLAB/Simulink and RT-LAB verify the real-time effectiveness of the proposed control strategy.

Key words: AC/DC hybrid microgrid, coordinated control, state of charge, state switching

CLC Number: