Price-based response strategy of micro-energy-grid in energy-anciliary service markets

Under the reform of China’s power market, micro-energy-grid further enhances its own profitability by participating in the joint dispatch of energy trading and frequency regulation ancillary services. Aiming at the operation characteristics of multi-energy complementary, this paper proposes a price-based response strategy of micro-energy grid with different scenarios in the joint dispatch considering both energy trading and frequency regulation ancillary services. The dispatch structure and process of the micro-energy-grid are firstly proposed, following with the day-ahead economic dispatch strategy, intra-day optimization rolling strategy and real-time frequency regulation mileage allocation strategy. Finally, the cases study shows that the multi-energy response strategy closely follows the price fluctuations of power spot market, with the deviation energy and total energy cost respectively reducing by 17.34% and 19.61% through energy trading and frequency regulation, which can further reduce the total cost of energy consumption and make significance for the dispatch of micro-energy-grid.