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Research on hybrid energy hierarchical coordination control method for grid-connected micro-grid

Author

Listed:
  • Huichuan Liu
  • Guowen Li
  • Jingyi Wang

Abstract

In order to effectively solve the problem that it is difficult to coordinate the operation state of grid-connected micro-grid, a hierarchical coordinated control method of hybrid energy in grid-connected micro-grid is proposed. The mathematical model of the relationship between system power and cost function and the hierarchical model of micro-grid are established. As optimisation objectives are provided by constructing objective functions, the information exchange and energy control between the systems are used to realise the grid connection. Simulation results show that the frequency of the proposed method is always around 50HZ, which is the closest to the planned value. The difference between the power value and the planned value is less than 1 kW, which is more in line with the actual needs than other methods. It is proved that this method can effectively control energy and ensure the smooth operation of micro-grid.

Suggested Citation

  • Huichuan Liu & Guowen Li & Jingyi Wang, 2021. "Research on hybrid energy hierarchical coordination control method for grid-connected micro-grid," International Journal of Industrial and Systems Engineering, Inderscience Enterprises Ltd, vol. 38(3), pages 362-377.
    • Handle: RePEc:ids:ijisen:v:38:y:2021:i:3:p:362-377
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