Control method and device of power storage device and computer program product

By using the control method of power storage devices in the wind farm, charging and discharging control is carried out according to the typhoon warning information, the problem of stable operation of the wind farm in extreme weather is solved, and the safe and stable operation of the wind turbine and the reduction of operating costs are achieved.

CN119727077APending Publication Date: 2025-03-28HUANENG (FUJIAN) ENERGY DEV CO LTD +2
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Patent Information

Application Number
CN202411812722.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

How to maintain stable operation of wind farms in extreme weather is a difficult problem, especially when typhoons come, grid failure and wind direction changes will lead to adverse load bearing of wind turbines, which may lead to blade breakage and tower breakage.

Method used

A control method for power storage device is provided, which determines the predicted arrival time by receiving typhoon warning information, and performs charging and discharging control of the power storage device before the predicted arrival time. The specific steps include starting charging in the first preset time period before the predicted arrival time, stop charging in the second preset time period, and discharging through the power storage device when the power grid connection is detected after the typhoon arrives, so that the wind turbine unit can yaw adjustment according to the wind direction.

Benefits of technology

By charging before the typhoon comes and discharge after it arrives, the stable operation of the wind farm in extreme weather is achieved, damage to the wind turbine in unfavorable load state is avoided, and the operating costs of the wind farm are reduced.

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Abstract

The invention discloses a control method and device of an electricity storage device and a computer program product, and relates to the technical field of wind power generation, the control method of the electricity storage device is applied to a wind power plant, the wind power plant comprises a plurality of wind turbine generators, the wind turbine generators are connected with a power grid, and an electrical system of the wind turbine generators comprises a wind power converter. The electricity storage device is connected with a direct current bus of the wind power converter. The method comprises the following steps: determining predicted arrival time of a typhoon according to received typhoon early warning information; controlling the power storage device to start charging in a first preset time period before the predicted arrival time, and controlling the power storage device to stop charging in a second preset time period before the predicted arrival time; and after it is determined that the typhoon arrives, under the condition that it is detected that connection between the wind power plant and the power grid is interrupted, the electricity storage device is controlled to conduct discharging, so that the multiple wind turbine generators conduct yaw adjustment according to the wind direction. By adopting the technical scheme, the problem of how to keep stable operation of the wind power plant in extreme weather is solved.
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