Power grid day-ahead optimization scheduling method based on thermal inertia of hot water network

Abstract

The invention discloses a power grid day-ahead optimization scheduling method based on thermal inertia of a hot water network. The power grid day-ahead optimization scheduling method based on thermal inertia of a hot water network utilizes a traditional power grid day-ahead optimization scheduling model which does not consider the thermal inertia of a hot water network to simulate scheduling and search the serious period that a wind driven generator stops working, and then utilizes the thermal inertia of a hot water network to reasonably adjust the quantity of heat production for scheduling simulation under the premise that the indoor temperature of a heat consumer is satisfied, and can reduce the heat supply power of a cogeneration unit during the serious period that a wind driven generator stops working, and can optimize and adjust the reduced heat supply power to the no-serious period that a wind driven generator stops working, so the adjustable scope of the power supply power of the cogeneration unit during the serious period that a wind driven generator stops working can be increased so that more wind power can access the network; and according to the adjusted quantity of heat production, power grid day-ahead optimization scheduling is performed again. Compared with the prior art, the power grid day-ahead optimization scheduling method based on thermal inertia of a hot water network can improve the utilization rate of wind energy resources and reduce the generating cost under the premise that the indoor temperature requirement of the heat consumer is satisfied.

Description

technical field [0001] The invention relates to a day-ahead optimal scheduling method for a power grid, in particular to a day-ahead optimal scheduling method for a power grid based on thermal inertia of a heating network, and belongs to the technical field of power system scheduling. Background technique [0002] Wind energy is currently the renewable energy with the greatest potential for large-scale commercial development in the world. Large-scale development and utilization of wind power generation has become an effective measure for countries all over the world to solve energy and environmental problems, improve energy structure, and ensure sustainable development of national economy. my country is rich in wind energy resources, and the potential for developing wind energy is huge. The total wind energy development on land and sea is about 1000-1500GW. Wind power has the resource base to become an important part of my country's future energy structure. The Chinese gove...

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Problems solved by technology

[0003] my country's "Three North" region is rich in wind energy resources, but the energy structure is unreasonable. The installed capacity is dominated by thermal power. The peak shaving capability of this type of unit

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