A combined heat and power dispatching method for improving wind power dissipation

Abstract

The invention discloses a combined heat and power dispatching method for improving wind power dissipation, which relates to the field of large power grid dispatching. The invention calculates the initial carbon quota of the thermoelectric unit and the actual carbon quota. By comparing the continuous output of the thermoelectric unit due to the increase of the heat load, the excess heat load is supplied by the regenerative electric boiler. And then charging the electric energy storage through the abandoned wind. Then, in order to reduce the control difficulty of heat storage electric boiler andelectric energy storage system, the combined heat and power multi-agent model for load distribution and information transmission is established. Then an optimization model considering only the cost of coal consumption is established. Finally, the dynamic inertia weight and compression factor are introduced to improve the particle swarm optimization algorithm to solve the model. The method of theinvention enables the system to reduce the system cost and improve the utilization rate of wind energy under the condition of guaranteeing the operation reliability. The simulation with MATLAB 7.10 verifies the rationality and effectiveness of the method, and proves that the utilization ratio of wind power can be improved by using regenerative electric boiler to supply heat load and using abandoned air to charge electric energy storage.

Description

technical field [0001] The invention relates to the field of dispatching of large power grids, in particular to a combined heat and power dispatching method for improving wind power consumption. Background technique [0002] With the extensive development and use of traditional fossil energy, problems such as resource shortage, environmental pollution, and climate change have become increasingly prominent. In order to solve energy and environmental problems as a whole and break the bottleneck of economic and social development, wind energy has attracted widespread attention due to its economic reliability, clean environmental protection, and sustainable utilization. However, the uncertainty and volatility of wind power itself have brought many adverse effects on the safe operation and normal dispatch of wind power connected to the grid. [0003] my country's "Three North" regions are rich in wind energy resources, but in the winter heating period, thermal power units are us...

AI Technical Summary

Problems solved by technology

It aims to solve the problem that thermal power units continuously increase their unit output due to the increase in heat load, thereby reducing the space for wind power to be connected to the grid; it aims to introduce carbon emission rights, and determine wind power based on the comparison between the initial carbon emission rights and the actual carbon emission rights of the unit. Start and stop of the supplied heat storage electric boiler to meet the heat load demand

It aims to solve the technical problem that although the regenerative electric boiler can increase the consumption of wind power, it cannot make full use of the abandoned wind power by installing a battery energy storage device on the load side and using the abandoned wind power to supply power to the battery energy storage device

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