Real-time dynamic economical scheduling method for generally-distributed electric power system containing wind power

Abstract

The invention discloses a real-time dynamic economical scheduling method for a generally-distributed electric power system containing wind power. The method includes the following steps: generating off-line a generally-distributed shape parameter list, and representing wind-power power probability distribution of different wind-power power prediction values through statistics of historical data; inputting system load predication data, wind-power power prediction data and the like during 12 scheduling periods; calculating thermal power output feasible domains of a thermal power set for real-time scheduling during the 12 scheduling periods; using general distribution to represent wind power, using the equal incremental principle to conduct wind power and thermal power static economical scheduling during the 12 scheduling periods, obtaining a static economical scheduling curve of wind power and thermal power, and transforming random economical scheduling into a determinacy economical scheduling model; and using the equal incremental principle to correct the output of the thermal power set, and enabling the thermal power cost to be optimal while ramp restriction of the thermal power set is ensured and also the stability of power generation plans of the thermal power set is ensured. A simulation example on the basis of certain wind-power power proves feasibility and reasonability of the method. The method has great popularization values and application prospects.

Description

technical field [0001] The invention belongs to the field of power system operation and control, and relates to a real-time dynamic economic scheduling method for power systems containing wind power based on general distribution. Background technique [0002] With the large-scale development of wind power generation, wind power has brought great challenges to the safe operation and dispatching control of the power grid. A real-time dynamic economic dispatch method that takes wind power as a dispatch quantity is crucial to the safe production of electric power. [0003] The economic dispatch problem is a basic problem in the power system. Before the large-scale access of wind power, due to the good controllability of thermal power units and the mature prediction method of power system load, the previous economic dispatch is usually a combination of day-ahead dispatch and real-time manual adjustment. With the access of wind power, the natural properties of wind power (randomne...

AI Technical Summary

Problems solved by technology

The physical concept of this type of algorithm is relatively clear, but there is still a lot of room for improvement in terms of computing speed, especially for real-time scheduling that requires high computing speed

However, there is no relevant technical solution with practical value

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