Peak shaving-oriented microgrid differential scheduling control system and method thereof

Abstract

The invention discloses a peak shaving-oriented micro-grid differentiation scheduling control system and method. The system comprises a plurality of micro-grids, wherein an internal heat supply network of each micro-grid is connected with a heat exchanger and a first-stage pipe network of a public heat supply network; a thermal power plant and a first circulating pump are connected with the first-stage pipe network of the public heat supply network in series; an internal power line of each microgrid is connected with one end of a public power grid through a tie line, the other end of the public power grid is connected with a centralized wind power generation system, a centralized photovoltaic power generation system and a thermal power plant in parallel, a peak regulation auxiliary servicecenter is in communication connection with each microgrid, and each microgrid is provided with a microgrid regulation and control center in communication connection with a peak regulation auxiliary service center. The method is advantaged in that the microgrid meeting conditions is selected for control according to difference of thermal and electric regulation capacities between the microgrids and difference of spatial distribution between the microgrids, the whole system improves control precision, further excavates the peak regulation potential of the microgrids, improves consumption of green energy, and reduces peak regulation cost.

Description

technical field [0001] The invention relates to the technical field of clean energy comprehensive dispatching application, in particular to a peak-shaving-oriented micro-grid differential dispatching control system and a method thereof. Background technique [0002] With the rapid development of the economy and the depletion of primary energy, as well as the prominence of environmental pollution, green renewable energy has attracted more and more attention from all countries. The installed capacity and grid-connected scale of wind power in my country are increasing year by year, but at the same time, they are also facing serious wind curtailment. Relevant studies have shown that the windy period in my country's three northern regions coincides with the peak heating period, and the sharp decline in system peak-shaving capacity of thermal power plants due to heating during the heating period is a major cause of wind curtailment. This is because the traditional operation mode ...

AI Technical Summary

Problems solved by technology

Microgrid has good flexibility and is the mainstream direction of distributed energy development in the future. It is also an important part of future smart grid. The existing related technologies of multi-microgrid participating in joint peak regulation can regulate the heat and electricity output and heat and electricity in the microgrid. consumption, the microgrid is externally equivalent to a well-responsive controllable load, and does not involve the interactive scheduling of the internal heating system of the microgrid and the first-level pipe network of the public heating network

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