Power grid side energy storage system capacity configuration method based on improved simulated annealing algorithm

Abstract

The invention belongs to the technical field of power grid planning, and particularly relates to a power grid side energy storage system capacity configuration method based on an improved simulated annealing algorithm. The method comprises the following steps: measuring an income y1 of delaying upgrading and reconstruction of a power transmission network by an energy storage system; measuring an increase wind power consumption income y2; measuring an environment cost y3 reduced by peak regulation of the energy storage system; measuring the annual cost yin of the whole life cycle of the energystorage system; and determining an optimal result max f = y1 + y2 + y3-yin of site selection configuration of the power grid side energy storage system according to the following objective function. According to the power grid side energy storage system capacity configuration method based on an improved simulated annealing algorithm, the possibility of falling into local optimum is reduced and theconvergence rate is increased. The method is reasonable in design, combines the advantages of a longhorn beard algorithm and a simulated annealing algorithm, a problem of energy storage system planning in a power grid is solved, and the operation economy of the energy storage system is improved.

Description

Technical field: [0001] The invention belongs to the technical field of grid planning, and in particular relates to a method for configuring the capacity of a grid-side energy storage system based on an improved simulated annealing algorithm. Background technique: [0002] In recent years, renewable energy has developed rapidly, but clean energy output dominated by wind power and photovoltaics has the characteristics of volatility, intermittent, randomness, etc.; coupled with rapid economic development, the power load has increased sharply, and the load and wind power output have formed The characteristics of anti-peak regulation, these two characteristics cause many hidden dangers in the power grid, such as severe wind curtailment, line congestion, voltage fluctuations, etc. The large-scale energy storage system technology can quickly handle electric energy in two directions, so a reasonable configuration of the energy storage system can improve the safe and economical oper...

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Problems solved by technology

[0002] In recent years, renewable energy has developed rapidly, but clean energy output dominated by wind power and photovoltaics has the characteristics of volatility, intermittent, randomness, etc.; coupled with rapid economic development, the power load has increased sharply, and the load and wind power output have formed The characteristics of anti-peak regulation, these two characteristics cause many hidden dangers in the power grid, such as severe wind abandonment, line blockage, voltage fluctuation, etc.

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