Analysis method for cluster output characteristics of large-scale solar photovoltaic power generation bases

Abstract

The invention relates to the application field of large solar photovoltaic power generation base power generation technology and grid connection technology, and particularly relates to a large solar photovoltaic power generation base clustering output feature analysis method. The method comprises steps: 1, according to light resource data, a hourly light intensity curve of a typical day of each mouth of the photovoltaic base is fit; 2, according to the hourly light intensity fitting curve of the typical day of each mouth, a daily power generation output feature curve of the typical day of each mouth of the photovoltaic base is calculated; 3, a power generation amount of the typical day of the photovoltaic base, a monthly cumulative power generation amount and a yearly cumulative power generation amount are predicted and calculated, and equivalent annual utilization hours of the photovoltaic base are calculated; 4, daytime equivalent average output and all-day equivalent average output of the typical day of the photovoltaic base is calculated; and 5, through photovoltaic base clustering output feature analysis, a grid economic dispatching operation curve is reasonably arranged, and peak regulation capacity arrangement of the system is optimized. The predication method of the invention is more accurate and more comprehensive, the large photovoltaic base output features can be intuitively reflected, and dispatching operation basis is provided for a grid corporation.

Description

technical field [0001] The present invention relates to the application field of power generation technology and grid-connected technology of large-scale solar photovoltaic power generation bases, and specifically relates to a method for analyzing the cluster output characteristics of large-scale solar photovoltaic power generation bases; on this basis, it provides calculation methods for power generation and maximum power generation of photovoltaic power generation bases and grid scheduling Analysis method with peak shaving strategy. Background technique [0002] 1. Presentation of the question [0003] At present, the development mode of solar power generation in my country is mainly based on the construction of large-scale photovoltaic power generation bases, in order to achieve large-scale benefits and make full use of superior solar energy resources. Unlike traditional thermal power or hydropower, solar energy is an intermittent energy source, and the output characteri...

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