Double-layer multi-position configuration method of energy storage system under wind and light access

Abstract

The invention discloses a double-layer multi-position configuration method for an energy storage system under wind and light access, and the method comprises the steps: taking the minimum planning cost of the energy storage system, the minimum loss cost of a power grid and the minimum daily operation cost of the power grid as an outer layer objective function, and taking the minimum operation cost of a unit, the minimum wind and light abandoning cost and the minimum comprehensive cost of the energy storage system as an inner layer objective function; establishing a master-slave hierarchical bilevel planning model, and an outer decision-making layer being dominant to an inner decision-making layer; solving the outer layer by adopting an improved particle swarm algorithm to obtain location selection and capacity configuration of an energy storage system in the outer decision layer, solving the inner layer by adopting CPLEX to obtain start-stop decisions and economic dispatch of a unit in the inner decision layer, and realizing multi-position configuration. According to the method, the capacity and the position of the energy storage system are solved by establishing the bilayer programming model, the wind and light abandoning phenomenon is reduced, the start-stop and operation of the unit are improved, the economical efficiency of the unit is improved, and the operation cost of the system is reduced.

Description

technical field [0001] The invention relates to the technical field of coordination and optimization of new energy systems, in particular to a double-layer multi-position configuration method for an energy storage system connected to wind and light. Background technique [0002] In recent years, in order to vigorously develop renewable energy and new energy, and achieve carbon peaking and carbon neutrality, the proportion of wind power and photovoltaic power generation connected to the power grid is increasing. However, due to the lack of centralized dispatch and management, there are certain contradictions with the current power grid. , mainly for power peak shaving, wind and solar curtailment, and system stability issues. [0003] In addition, large-capacity energy storage technology is developing rapidly, and its two-way power conversion characteristics can realize the time-space translation of energy, and provide solutions to alleviate a series of problems caused by larg...

AI Technical Summary

Problems solved by technology

The construction of an energy storage system not only involves planning issues, but is also closely related to short-term operation. Few of the existing technologies can comprehensively analyze the optimal allocation strategy from an economic point of view. With the gradual advancement of my country's electricity marketization, the energy storage system will Will be deeply involved in a series of power auxiliary services, so it is necessary to be able to comprehensively consider various costs and benefits from planning and operation

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