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Bang-bang controller and control method for variable speed wind turbines during abnormal frequency conditions
Bang-bang controller and control method for variable speed wind turbines during abnormal frequency conditions
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机译:异常频率条件下变速风力发电机的Bang-bang控制器和控制方法
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摘要
A wind farm (10) may include a plurality of variable speed wind turbines (12, 14, 16). A centralized controller (50) may be configured to selectively adjust a respective electrical output power from each of the wind turbines at least during an underfrequency condition. The controller may include a monitor (52) configured to monitor a grid frequency value relative to at least a first threshold value. A deviation of the grid frequency value beyond the first threshold value is indicative of the underfrequency condition. The controller further includes a control unit (54) configured to effect a step response to the electrical output power of the wind turbine in a direction selected to counteract the underfrequency condition.
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