提出了一种风电场及机组出力损失计算模型与方法。利用风电机组的历史运行数据建立风速、风向与功率间的专家数据库，基于该数据库建立风电机组出力损失计算模型，将机组故障或弃风期间的实测风速和风向代入该模型，计算得出风电机组以及该风电场的实时功率损失及在某时间段内损失的发电量。通过利用现场数据模拟计算，验证了该计算模型与方法的有效性，可对各种原因造成的机组出力损失做出准确计算。该方法既可提高风电场的运行管理水平，还可为风电场参与电网调峰调频提供准确的数据支持。%This paper proposes a calculation model and method of output power loss of wind farms and wind turbines.An expert system database with large amounts of historical data is established to represent the relationships among wind speed, wind direction and power output.The power loss model is built on the expert database.The loss of the real-time power and generating capacity of the wind farms can be measured according to the observed wind speed and wind direction when the wind turbines are broken or curtailed.Experimental results demonstrate that the model can accurately measure the power output loss caused by various reasons,and thus verify the validity of the model.More importantly,the proposed method not only improves the operation and management level of the wind farms,but also provides accurate data reference for peak regulation and frequency modulation.
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