Multi-microgrid aggregation management method and platform

Abstract

The invention relates to a multi-microgrid aggregation management method and platform, and the method comprises the steps: obtaining the output and load demand prediction of an undispatchable generator set of each microgrid, obtaining an energy supply-demand relation according to the electric quantity sold or purchased in a day-ahead market, and determining the day-ahead electricity price; according to the energy surplus and deficiency information of each micro-grid, performing power mutual aid among the micro-grids, adjusting the output of the micro-grid comprising a gas unit and an energy storage device to meet the real-time market demand so as to obtain the lowest cost, for the micro-grid in isolated island operation, performing adjustment with the lowest power cost of the multiple micro-grids as the target, and for the micro-grid in grid-connected operation, performing adjustment with the lowest power cost of the multiple micro-grids as the target, for the micro-grids in grid-connected operation, adjusting by taking the minimum fluctuation of the PCC point connected with the micro-grid and the power distribution network and the minimum power generation cost as targets; and performing settlement on the profit of the day and performing profit distribution. Compared with the prior art, a plurality of microgrids are effectively interconnected, integrated and aggregated, so that the reliability of the system is improved, the energy complementation and energy management are enhanced, and the auxiliary service is improved.

Description

technical field [0001] The invention relates to the field of microgrid management, in particular to a multi-microgrid aggregation management method and platform. Background technique [0002] At present, the traditional micro-grid energy management mode of "spontaneous self-use, surplus to the grid" makes the interaction between the micro-grid and the distribution network frequent, and lacks unified centralized management, which seriously affects the safe and stable operation of the distribution network. [0003] In the micro-grid and micro-grid group systems, there are many types and quantities of distributed energy, and multiple stakeholders are involved, so the operation control is relatively complicated. Therefore, how to adopt an effective optimized energy management strategy for microgrid and microgrid group systems is the key to realize the large-scale application of microgrid and improve the operating efficiency of microgrid. Contents of the invention [0004] The...

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Problems solved by technology

[0002] At present, the traditional micro-grid energy management mode of "spontaneous self-use, surplus to the grid" makes the interaction between the micro-grid and the distribution network frequent, lacks unified centralized management, and seriously affects the safe and stable operation of the distribution network.

[0003] In the micro-grid and micro-grid group systems, there are many types and quantities of distributed energy, and multiple stakeholders are involved, so the operation control is relatively complicated

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