Multi-microgrid system electric energy scheduling method, system, device and storage medium

Abstract

The invention discloses a multi-microgrid system electric energy scheduling method, a multi-microgrid system electric energy scheduling system, a multi-microgrid system electric energy scheduling device and a storage medium, which are applied to a multi-microgrid cluster composed of a plurality of microgrids. The multi-microgrid system electric energy scheduling method comprises the steps of: acquiring load demands of demand-side microgrids and power supply capacities of supply-side microgrids in the multi-microgrid cluster; acquiring an electric energy price in the multi-microgrid cluster; ranking the demand-side microgrids and / or supply-side microgrids according to a preset market rule based on the load demands, the power supply capacities and the electric energy prices; generating scheduling instructions for the plurality of microgrids according to a supply-demand balance principle and the ranking sequence of the demand-side microgrids and the supply-side microgrids; and controllingthe plurality of microgrids to execute the scheduling instructions. According to the multi-microgrid system electric energy scheduling method, the multi-microgrid system electric energy scheduling system, the multi-microgrid system electric energy scheduling device and the storage medium, the multi-microgrid cluster performs electric energy adjustment according to the supply-demand balance principle internally without being connected to a power distribution network, thereby avoiding the problem of disturbance to a power system after the microgrids are connected to the power distribution network; and the scheduling instructions are related to the ordering of parameters, and the control coordination efficiency of the multi-microgrid cluster can be improved.

Description

technical field [0001] The invention relates to the field of power system optimization, in particular to a method, system, device and storage medium for dispatching electric energy in a multi-microgrid system. Background technique [0002] With the development of the national economy, the demand for electricity has grown rapidly, and the scale of the power grid has also continued to expand. However, at the same time, the disadvantages of large-scale power systems have become increasingly apparent, such as high power generation costs, difficult system maintenance, and environmental unfriendliness. In response to this series of problems, the concept of microgrid was proposed at the beginning of this century. In the continuous deepening of research on microgrids, energy coordination and control methods among multiple microgrids have become important issues to be solved urgently in the development of microgrids. Key considerations when optimizing multi-microgrids. [0003] At ...

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Problems solved by technology

[0006] However, the existing technology has the following disadvantages: the disturbance of the power system caused by the integration of the microgrid into the distribution network is not considered, and the power generation between multiple microgrids does not constitute competition, which is not conducive to the reduction of the power generation cost of the microgrid

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