Wind-solar consumption planning method based on flexible resources

Abstract

The invention relates to a wind-solar consumption planning method based on flexible resources. The method is characterized in that under the limitation of power supply development capability, flexible resources such as a peak regulation power supply, energy storage, interruptible load and the like are preferentially developed in combination with expert experience, the adjustable capability of a system is increased to the maximum extent, reasonable power abandoning space is considered, and the new energy admitting capability is improved. According to the balance method, a balance verification time period is selected based on excavation of regional loads and wind-solar characteristics. The wind-solar output rates in the peak regulation balance period are judged through historical data back measurement, and the wind curtailment rate and the light curtailment rate are calculated respectively through integration of typical day wind-solar curtailment power. According to the method, the system capacity adequacy and the new energy consumption capacity are comprehensively considered, the wind-solar comprehensive consumption planning method based on the balance method is constructed, a certain electricity abandoning space is considered, and new energy development is promoted.

Description

technical field [0001] The invention relates to a planning method for wind-solar consumption, in particular to a planning method for wind-solar consumption based on flexible resources with simple calculation and accurate and effective evaluation results. Background technique [0002] The power structure in the "Three Norths" region is dominated by coal power, and there is a serious lack of power sources with flexible adjustment capabilities. With the gradual increase in the scale of wind power development, especially in winter, the heating period of coal power units, the dry season of hydropower units, and the peak power generation period of wind power units overlap each other, making peak regulation more difficult and wind power consumption severely restricted. At present, the low proportion of renewable energy and insufficient flexibility have led to the problem of curtailment of wind and light in some periods of time. In the future high proportion of renewable energy powe...

AI Technical Summary

Problems solved by technology

With the gradual increase in the scale of wind power development, especially in winter, the heating period of coal power units, the dry season of hydropower units, and the peak power generation period of wind power units overlap each other, making peak regulation more difficult and wind power consumption severely restricted

At present, the low proportion of renewable energy and insufficient flexibility have led to the problem of curtailment of wind and light in some periods of time. In the future high proportion of renewable energy power system scenarios, if the flexibility is insufficient, the consequences will be more serious, and even cause the system to fail. normal operation

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