Fuzzy adaptive control based method for tracking output of power generation plan of light storage system

Abstract

The invention provides a fuzzy adaptive control based method for tracking output of a power generation plan of a light storage system. The method comprises the following steps of reading relevant data of a photovoltaic station and an energy storage system; randomly simulating day-ahead actual output of photovoltaic power generation, and building a chance constraint planning tracking model containing a control coefficient; determining a target power control coefficient by using a fuzzy adaptive control method; and controlling the working condition coefficient of the energy storage system according to time frames so as to determine a charging and discharging power optimization scheme. According to the method provided by the invention, a more accurate control coefficient is screened out, the traditional defect of coefficient adjustment by manual based on experience is avoided, and a light storage combined power generation tracking effect is effectively led to be between an upper limit and a lower limit of the plan and is also maintained to be optimal; and the charging and discharging power and the charged state of the energy storage system both are kept in an appropriate range, the charging and discharging ability is improved, the requirement for the energy storage system is reduced, and a solution scheme is provided for a day-ahead scheduling plan of the output of the energy storage system in the actual engineering application.

Description

technical field [0001] The invention relates to the technical field of smart grids and energy storage, in particular to a fuzzy self-adaptive adjustment-based method for tracking power generation plan output of an optical storage system. Background technique [0002] With the rapid development of the world economy, the increase of human demand for energy, and the depletion of traditional energy, people began to turn their attention to clean and renewable new energy. As a representative of renewable energy, solar energy has the characteristics of rich resources, green and environmental protection, which makes it have advantages that other new energy sources cannot match. However, photovoltaic power generation is an intermittent energy source. Due to the influence of solar radiation intensity and ambient temperature, it is difficult for a photovoltaic independent operation power supply system to provide continuous and stable energy output. As a result, power quality, power sup...

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Problems solved by technology

There is also a technology that proposes a control strategy based on ultra-short-term wind forecast power to track the plan. Although this method can realize real-time tracking by rolling the control coefficient, it only considers the ultra-short-term situation and the range of wind power, and does not contribute to the short-term situation and photovoltaic tracking plan. for specific analysis

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