Wind-thermal bundled power generation system optimization planning method

Abstract

The invention belongs to the technical field of power system planning, and particularly relates to a wind-thermal bundled power generation system optimization planning method. The minimum total bundled system cost including the operation cost, the investment and the maintenance cost serves as an objective function, the minimum startup and shutdown and the maximum output and the minimum output of a thermal power unit and the like serve as constraint conditions, a wind-thermal bundled power generation system optimization planning model including a system operation behavior is built, and the model is solved by adopting algorithms such as dynamic planning and a tree drop technique. On the basis of simulating the operation behavior of the bundled system and in consideration of the operation constraints of the thermal power unit, the operation cost of the thermal power unit can be acquired more accurately, and the wind-thermal capacity planning result in the bundled system is more accurate and more reasonable.

Description

technical field [0001] The invention relates to the technical field of power system planning, in particular to a method for optimal planning of a wind-thermal power bundling power generation system. Background technique [0002] The increasing demand for energy and the increasingly serious environmental problems have made countries all over the world increase their efforts in the development of renewable energy. Among many renewable energy sources, wind energy, as a widely distributed renewable energy source, has received more and more attention in its development and utilization. With the continuous maturity of technology and the continuous reduction of installed cost, the development and utilization of wind power have shown unprecedented broad prospects. my country has a vast territory, most of the northern part has a temperate continental monsoon climate, and is rich in wind energy resources. At present, my country has planned many large-scale wind farms in Inner Mongol...

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Problems solved by technology

[0003] Since the planning of the wind-thermal power bundling system is proposed based on the distribution of primary energy in my country, there are few foreign studies on this planning method; while in China, although some scholars have conducted relevant research on this aspect, the planning model is relatively rough, such as The calculation of operating cost adopts the rough calculation of unit coal consumption, without considering various operating constraints of thermal power units in the bundling system, etc.

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