Wind-solar complementary power generation capacity optimal configuration method and system based on capacity credibility

Abstract

The invention provides a wind-solar complementary power generation capacity optimal configuration method and system based on capacity credibility, and the scheme comprises the following two technicalsolutions: firstly, calculating the wind-solar complementary power generation capacity credibility under a certain proportion based on the definition of new energy power generation capacity credibility; secondly, according to a wind and light complementary power generation capacity configuration scheme, calculating the optimal wind and light complementary power generation capacity configuration proportion with the goal of meeting the maximum capacity credibility. According to the scheme, load characteristic influence factors are fully considered, and when the total installed capacities of thewind-solar hybrid system are equal, the power generation utilization rate of the wind-solar hybrid system is the highest, and the resource waste rate is the lowest.

Description

technical field [0001] The disclosure belongs to the technical field of capacity optimization of wind-solar hybrid power generation, and in particular relates to a method and system for optimal configuration of wind-solar hybrid power generation capacity based on capacity credibility. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Both wind energy and solar energy have a certain degree of randomness and intermittency. Connecting to the grid alone will have a great impact on the power stability and power supply reliability of the grid. Since wind energy and solar energy are highly complementary in time and region, connecting them to the grid in the form of a wind-solar hybrid power generation system can make up for the loss caused by the intermittent nature of wind-solar resources. [0004] Wind-solar hybrid power generation needs to sel...

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Problems solved by technology

Among them, the characteristics of the cost minimization calculation method are: mainly from the perspective of energy companies, with the aim of maximizing economic benefits, the wind and wind power generation capacity allocation calculation is carried out, without considering the stability and safety of input grid power, but the power system is The accommodating capacity of new energy power generation is related to many factors, especially the load characteristics determine the size of its accommodating space. In fact, affected by the load demand, there are different degrees of wind and solar abandonment, and some places abandon wind and solar. The rate is as high as 30%, which will also cause economic losses and waste of resources; and the characteristics of the calculation method with the goal of minimizing power fluctuations: mainly from the perspective of the power grid company, with the purpose of grid power fluctuation and stability, wind and wind power generation Capacity allocation calculation cannot effectively consider the economic benefits of energy companies

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