Wind-storage system coordination control strategy for reducing abandoned wind of multiple wind farms by aid of positive externality of stored energy

Abstract

The invention discloses a wind-storage system coordination control strategy for reducing abandoned wind of multiple wind farms by aid of positive externality of stored energy. The wind-storage system coordination control strategy is characterized by comprising contents of determining distribution principles for power distribution rations of the wind farms in joint external transmission environments with the multiple wind farms; analyzing externality theories of energy storage systems; reducing the abandoned wind of the multiple wind farms by the aid of the positive externality of the stored energy, and the like. The wind-storage system coordination control strategy has the advantages that the positive externality generated by available power and the capacity of the stored energy is sufficiently utilized, relief of the abandoned wind of the local wind farms can be guaranteed, the abandoned wind of the other wind farms can be reduced to the greatest extent, accordingly, the utilization rate of the stored energy can be increased, effects for relieving the abandoned wind by the aid of the stored energy can be optimized, the wind-storage system coordination control strategy is scientific and reasonable and is high in applicability, excellent effects can be realized by the wind-storage system coordination control strategy, and the like.

Description

technical field [0001] The invention relates to the technical fields of new energy power generation and energy storage, and is a wind-storage system coordinated control strategy that utilizes the positive externality of energy storage to reduce abandoned wind in multiple wind farms. Background technique [0002] Low-carbon power promotes the large-scale development of wind power, and the penetration rate of wind power in the power grid has increased significantly; the output power of wind turbines has the characteristics of randomness, intermittency and volatility, and it is difficult to maintain a balance between wind power and load, which has caused certain difficulties for wind power consumption ; In areas with abundant wind power resources, the grid structure is weak, and the ability to send wind power outside is limited. These problems are the root causes of serious wind curtailment in the process of wind power development in my country. As an effective measure to redu...

AI Technical Summary

Problems solved by technology

However, in these studies, the application of energy storage is generally limited to the scenario of a single wind farm-single energy storage system, and the scope of energy storage is limited to the local wind farm equipped with energy storage. The system has no influence

However, in the actual application process of energy storage, due to the high randomness of wind power output, the utilization degree of energy storage cannot always be kept constant

If the energy storage is configured according to the worst wind power output data in the energy storage installation planning stage, then the energy storage will definitely be at a low utilization rate in actual operation

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