Compilation method of photovoltaic power generation dispatch curve considering the reliability of output capacity

Abstract

The invention discloses a photovoltaic power generation scheduling curve compilation method capable of considering the output capacity credibility. The method comprises the following steps: establishing a mathematical model with the smallest sum, serving as an optimization target, of output power deviation rates, selecting an appropriate time window to continuously optimize the output power through a target function to initially obtain an output power reference value on the basis of the establishment of the mathematical model, and introducing the output reference credibility for correction on the basis of the output power reference value to obtain a final photovoltaic power generation scheduling curve. By means of selecting the appropriate time window, establishing the mathematical model with the smallest sum, serving as the optimization target, of the output power deviation rates and introducing the output reference credibility for correction on the basis of the output power reference value, on one hand, the method conforms to the traditional power supply scheduling rule and reduces the fluctuation of photovoltaic power generation; and on the other hand, a reasonable and efficient photovoltaic power generation scheduling method is provided.

Description

Technical field: [0001] The invention relates to a method for preparing dispatching curves of photovoltaic power generation by a dispatching department. Background technique: [0002] Photovoltaics has achieved large-scale grid-connection in my country, but because the power grid company believes that the capacity of photovoltaic power generation is not reliable, and at the same time it has to take into account the quality of power supply to users in the entire power grid, the scheduling of photovoltaic power generation is relatively conservative, resulting in the current photovoltaic power generation. The utilization rate of power generation is not high. Invention content: [0003] The purpose of the present invention is to solve the above problems, and proposes a photovoltaic power generation scheduling curve preparation method that considers the reliability of output capacity. This method stabilizes the power output of photovoltaic power generation, improves the reliabil...

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Problems solved by technology

[0002] Photovoltaics has achieved large-scale grid-connection in my country, but because the power grid company believes that the capacity of photovoltaic power generation is not reliable, and at the same time it has to take into account the quality of power supply to users in the entire power grid, the scheduling of photovoltaic power generation is relatively conservative, resulting in the current photovoltaic power generation. The utilization rate of power generation is not high

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