Unit commitment output optimization method based on short-circuit ratio model and system short-circuit ratio constraint of new network construction type energy storage system

Abstract

The invention provides a unit combination output optimization method based on a short-circuit ratio model and system short-circuit ratio constraint of a new network-building type energy storage system, and the method comprises the steps: building a system short-circuit ratio model of a network-building type energy storage access wind power plant based on the short-circuit capacity and input DC power of the system; obtaining a system short-circuit ratio constraint according to the system short-circuit ratio model; and performing cooperative calculation on output distribution of each unit in the wind power plant in the system model based on the system short-circuit ratio constraint to obtain a unit combination output optimization result. According to the method, unit combination output optimization considering system short-circuit stability and operation economy is realized, the problem of coordination of system stability and unit output scheduling after networking type energy storage access to a wind power plant is effectively solved, and a technical normal form is provided for efficient scheduling and stable operation.

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