基于SCADA数据的风力机功率曲线评价方法试验研究

Experimental Study on Evaluation Method of Wind Turbine Power Curve Based on SCADA Data

提出一种基于风力机SCADA数据中风速-功率的性能评价方法。首先,以风力机的实际使用性能对设计性能的满足程度为基准,提取风力机SCADA原始数据并进行数据预处理,以性能可靠性理论为依据,结合组合权重法构建风力机性能可靠度模型;其次,考虑风力机功率离散性,并计算功率变异系数;然后,综合风力机性能可靠度与功率变异系数建立性能评分规则;最后,通过算例验证了该评价方法的可行性。对风力机性能可靠度估算与综合评价具有重要意义。

In this paper,a performance evaluation method based on wind speed and power in wind turbine SCADA data is proposed.First of all,based on the actual performance of the wind turbine to meet the design performance,the original data of the wind turbine SCADA is extracted and preprocessed,and then based on the performance reliability theory and with the combined weight method,the performance reliability model is constructed to obtain the performance failure probability;secondly,the power discreteness of the wind turbine is considered and the power variation coefficient is calculated;and then,the performance evaluation rules are established through integrating the performance failure probability and power variation coefficient of wind turbine;finally,the feasibility of this method is verified by an example.It is of great significance to the estimation and comprehensive evaluation of wind turbine performance failure probability.