Abstract
In order to achieve the optimization of power consumption mode, improve user power efficiency, and realize the coordination of power supply and demand, considering the advantages of distributed energy and energy storage, a source-charge-storage multi-time-scale coordinated control strategy is proposed. According to the needs of the hybrid energy system, we analyze the complementary potential of the hybrid energy system from the output side and analyze the response priority mechanism of the integrated energy system equipment, taking the economic cost and pollutant gas emissions as the objective function, economy, environment, and system. This is a constrained source-load-storage multiobjective joint optimization and adjustment model, which is solved by a multi-time-scale cooperative control strategy. Finally, a calculation example is used to verify the feasibility of the proposed method and provide technical support for the coordinated and optimized operation of “source-load-storage.”
Highlights
After the industrial revolution, energy plays a crucial role in the development of a country, and it is an important guarantee for national strategic security [1, 2]
Diao et al [6] proposed a comprehensive energy coordination optimization method involving energy storage, which can effectively increase the absorption of new energy
Ou et al [7] consider the influence of seasons on the operation of comprehensive energy, design different operation modes in different seasons, and make full use of the complementarity and coordination of source, charge, and storage. e above literatures mainly study the coordinated and optimized operation of comprehensive energy, but the factors considered in the comprehensive energy optimization are relatively single, and the coordination and complementarity of multisource operation, the optimization of multi-time-scale, and the influence of energy storage on the power grid are not comprehensively considered
Summary
Energy plays a crucial role in the development of a country, and it is an important guarantee for national strategic security [1, 2]. As can be seen from the figure, the demand for cooling energy remains high during the whole 24 hours in summer, while the electricity and hot water loads are relatively low. E electrical load between 0 : 00 and 5 : 00 is relatively low, which belongs to the valley period of the power grid, so the electrical load can be supplied by the mains supply During this period, the mains supply can be used for refrigeration and production of domestic hot water and storage for peak use. E coordination and complementarity of cold, hot, and electric sources can minimize the use of mains supply under the premise of meeting the current load demand When cold and hot energy consumption is in the trough, energy can be stored; when the electricity consumption is low, the excess electric energy can be stored, and the thermal energy and cold energy generated during this period can be directly supplied to the load or stored for peak use. e coordination and complementarity of cold, hot, and electric sources can minimize the use of mains supply under the premise of meeting the current load demand
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