Method, equipment and system for controlling wind generating set

Abstract

Provided are a method, equipment and system for controlling a wind generating set. The method for controlling the wind generating set comprises the steps that engine room relevant position parametersof the wind generating set are acquired through a global positioning system; real-time engine room vibration displacement is determined based on the engine room relevant position parameters; a real-time tower bottom bending moment load is determined according to the real-time engine room vibration displacement; and when the real-time tower bottom bending moment load is larger than a tower bottom bending moment load threshold value, the wind generating set is controlled to operate under a preset control strategy to reduce the load of a tower of the wind generating set. According to the method,equipment and system for controlling the wind generating set, the limit load of the tower of the wind generating set can be effectively reduced, and the survival ability of the tower under the extremecondition can be improved.

Description

technical field [0001] The present invention generally relates to the technical field of wind power generation, and more specifically, relates to a control method, device and system for a wind power generating set. Background technique [0002] The cost of the tower of the wind power generation unit is relatively high, which has a significant impact on the investment income of the wind farm. In the current wind power market competition, the owners are very concerned about the weight of the tower. All complete machine manufacturers have invested a lot of energy in the lightweight design of the tower. [0003] In order to reduce the operating limit load of wind turbines, load sensors can usually be mounted on the blade root, tower top and tower bottom. At present, the industry mainly uses strain gauges to measure loads. However, due to problems such as temperature drift and aging of strain gauges, it needs to be calibrated every six months or a year. In addition, during the 2...

AI Technical Summary

Problems solved by technology

At present, the industry mainly uses strain gauges to measure loads. However, due to problems such as temperature drift and aging of strain gauges, it needs to be calibrated every six months or a year. In addition, during the 25-year life span of wind turbines, strain gauges need to be replaced every 3 years. , resulting in increased operating costs and difficulties in later maintenance

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