Capacity allocation method of energy storage system considering wind-limiting characteristics and economy

Abstract

The invention relates to an energy storage system capacity allocation method taking wind limiting characteristic and economy into consideration. The method is characterized in that the wind limiting characteristic is analyzed based on the measured wind limiting power of a wind farm first, and on the basis, an energy storage system multi-scenario regulation control strategy is put forward and a corresponding scenario division principle is formulated; and then, an energy storage system capacity allocation method taking both wind limiting characteristic and economy into consideration is put forward by constructing an economic evaluation model taking into consideration the power benefit, environmental benefit, investment cost, maintenance fee and other factors of an energy storage system. Important reference is provided for capacity allocation of a concentrated charging and discharging large-scale energy storage system.

Description

technical field [0001] The invention belongs to the technical field of grid-connected operation of wind power generation, and relates to a method for configuring the capacity of an energy storage system in consideration of wind-limiting characteristics and economy. Background technique [0002] In recent years, my country's wind power has shown a development trend of "large-scale wind power and high penetration". With the large-scale development of wind power, the existing grid regulation capacity has gradually become insufficient, and the contradiction between wind power and the grid has escalated sharply, resulting in large-scale wind abandonment and even endangering the grid. Safety has seriously hindered the large-scale utilization of wind power. The use of energy storage system can realize the time-space translation of energy, so as to achieve the effect of reducing wind curtailment, improving the safety and economy of power grid and wind power operation. Contents of t...

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Problems solved by technology

[0002] In recent years, my country's wind power has shown a development trend of "large-scale wind power and high penetration". With the large-scale development of wind power, the existing grid regulation capacity has gradually become insufficient, and the contradiction between wind power and the grid has escalated sharply, resulting in large-scale wind abandonment and even endangering the grid. Safety, which seriously hinders the large-scale utilization of wind power

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