定速感应风力发电机组的等效建模探究

摘要

分析风力发电机组对接入系统的暂态影响，需要建立机组的模型。定速感应风力发电机组机理复杂，建立详细模型比较困难。系统辨识法将被研究系统当作黑箱，重点拟合系统外特性，适用于复杂系统。本文基于系统辨识法，建立定速感应风力发电机组的等效模型，采用粒子群算法辨识模型参数，并在MATLAB中进行仿真验证。%In order to analyze the transient influence of wind turbine generator on system,the model of wind turbine generator should be built.Mechanism of the fixed-speed wind turbine generator is complex,it’s difficult to build the detailed model.System identification method regards the studied system as a black box,focuses on fitting the external characteristic of the system,it’s suitable to the complex system. Based on the system identification method,the equivalent model of the fixed-speed wind turbine generator is built in the paper,and its parameters are identified using the particle swarm algorithm,the simulation is performed to validate the equivalent model in the MATLAB.