Cooling-heating-power combined supply type multi-microgrid system and economic optimal dispatching method thereof

A technology of combined cooling, heating and power supply and economic optimization, applied in data processing applications, forecasting, instruments, etc., can solve problems such as long cost recovery period, high investment cost of energy storage, and large investment cost
CN109190859AInactive Publication Date: 2019-01-11STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
Publication Date
2019-01-11
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a cooling-heating-power combined supply type multi-microgrid system and an economic optimal dispatching method thereof. The system comprises an energy storage power station anda plurality of microgrids connected with the energy storage power station. The energy storage power station is provided with an energy management system of the energy storage power station, and the micro-grid is provided with an energy management system of the micro-grid. An electric tie line is set up between each micro-grid and the energy storage power station, and the electric bus bar of the micro-grid is connected with the electric tie line so as to be connected to the common connection point of the energy storage power station, so that the electric energy between the energy storage powerstation and each micro-grid flows mutually; the energy management system of the energy storage power station formulates the economic optimal dispatching plan of the multi-grid system of the combinedcooling, heating and power supply, and the micro-grid energy management system of each micro-grid executes the economic optimal dispatching plan, so as to realize the overall economic optimization ofthe operation of the multi-grid system of the combined cooling, heating and power supply. The method not only meets the demand of cooling and heating power load of each micro-grid, but also has no waste of cold, heat and power, and can significantly reduce the economic cost of daily operation.
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Description

technical field

[0001] The invention relates to an optimal scheduling method, in particular to a combined cooling, heating and power multi-microgrid system considering the service of an energy storage power station and an economical optimal scheduling method thereof, belonging to the technical field of comprehensive energy utilization. Background technique

[0002] Energy storage acts on different links of the power system. The overall function is to realize the grid connection of new energy power, maintain efficient and safe operation of the power grid, and balance power supply and demand. The energy storage system installed at the end user can improve the reliability of power supply through power storage and release. Especially in the event of unexpected power outages and other accidents, demand-side management can be carried out. In areas with time-of-use pricing, electricity can be purchased from the grid during low electricity price periods. Stored in energy storage, re...

Claims

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