基于实测数据的双馈风电机电暂态仿真模型参数识别方法

双馈风电的机电暂态仿真模型具有比较复杂的结构和较多的控制参数，根据实测数据建立实际机组的模型参数是实际应用的重要前提和基础。根据双馈风电模型的基本结构特点以及不同模型参数对输出特性的影响程度，提出了基于参数影响程度的分类确定方法。首先根据双馈风电的基本原理和模型结构，分析不同部分参数变化对风电机组输出有功、无功特性的影响程度，指出正常控制方式、低电压穿越期间控制方式及参数具有较大影响；之后基于实际数据条件，针对不同参数提出了分别采用厂家获取、典型参数、实测拟合的分类处理方法；最后采用实际双馈风电机组介绍了方法的流程、参数拟合的结果和效果。实践证明该文提出的参数识别方法能够反映实际风电的关键特性，具有较好的实际应用价值。

Parameter Identification Method of Double-Fed Wind Power Electromechanical Transient Simulation Model Based on Measured Data

The electromechanical transient simulation model of double-fed wind power has complex structure and more control parameters. It is important prerequisite and basis for the actual application to obtain units model parameters based on the measured data. According to the basic structure characteristic of double-fed wind power model and the influence degree of different model parameters on output characteristics, this paper proposed classification determination method based on the influence degree of parameters. Firstly, based on the basic theory and model structure of double-fed wind power, this paper analyzed the influence of different model parameters on the active power and reactive power output characteristics of wind turbines. The results show that the control mode in normal status and the control mode, parameters in low voltage ride through status have great influences. Then, based on the actual data, this paper put forward classification processing method for different types of parameters including acquired from manufacturer, using typical parameters and parameter fitting from measured data. Finally, a double-fed wind power unit was used as the example to introduce the method process, as well as the result and effect of parameter fitting. The practice proves that the proposed parameter identification method can reflect the key characteristics of the actual wind power and has good practical application value.