Abstract
In this paper, a dynamic optimal setting method of schedulable minimum power for combined cooling, heating and power (CCHP) system is proposed, which aims at maximizing the energy utilization of gas engine in CCHP microgrid. Firstly, according to the short-term energy supply demand of cold/heat/electricity load under isolated grid, a hierarchical scheduling strategy is developed for the CCHP microgrid. Based on the dispatching strategy, the method of setting the minimum dispatching power of the CCHP microgrid is improved. The minimum dispatching power of the CCHP microgrid is dynamically adjusted according to the energy supply situation in different periods to ensure that the gas engine always operates in the most efficient state, making full use of the energy of the gas engine to supply electric load, while maximizing the output of cold/heat energy. Through the example analysis, the method proposed in this paper realizes the maximum utilization of electric/cold/heat of gas engine, and verifies the effectiveness of the method.
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