Three-Layer Energy Optimization Strategy for CHP Microgrid Considering Path Loss

doi:10.11930/j.issn.1004-9649.202206113

Abstract

Abstract: In order to reduce the dependence of the microgrid on the external system and the operating cost of the microgrid itself, a three-layer energy optimization strategy is proposed for the combined heat and power microgrid cluster. This strategy not only constructs a lower layer optimal operation model aiming at minimizing the operation cost of each microgrid and an upper layer optimal operation model aiming at minimizing the interaction cost between agents but also constructs a new middle layer optimal operation model aiming at minimizing the loss of energy transmission path. The middle layer model improves the energy mutual aid ability between microgrids through barter and trading transactions and searches for the optimal transmission path for energy transactions between microgrids based on the Floyd-Warshall algorithm. The example results show that the three-layer optimization strategy proposed in this paper has good applicability. Compared with other optimization strategies, the proposed strategy has a lower energy transmission process loss, a stronger energy mutual aid ability between microgrids, and a smaller operation cost for each microgrid.

Key words: combined heat and power microgrid, three-layer energy optimization, energy mutual aid, path loss, Floyd-Warshall algorithm

LING Kai, WANG Can, ZHANG Gaorui, WANG Aoqi, CHU Sihu, TIAN Fuyin, LI Xinran. Three-Layer Energy Optimization Strategy for CHP Microgrid Considering Path Loss[J]. Electric Power, 2023, 56(2): 102-113.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202206113

https://www.electricpower.com.cn/EN/Y2023/V56/I2/102

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