摘要
对广泛应用于风力发电的双馈电机在同步速旋转坐标系下进行状态空间建模,分析了电压跌落对双馈电机的影响。进而引出计及定子磁链暂态变化的控制实现,并以此在MATLAB/Simulink中,对完整双馈风机模型进行了电网电压跌落(跌落深度p=0.9)模拟。仿真结果显示,所建立的双馈电机模型及相应的机侧、网侧变流器控制模型能模拟电压跌落工况运行,满足理论预期,从而实现了为后续转矩震荡优化控制搭建研究和试验平台的目的。
State-space modeling was completed in the synchronous rotating frame for the doubly-fed generator extensively used in wind power generation,and influence of voltage dip upon the generator was analyzed.Furthermore,control was realized under consideration of transient change of stator flux linkage,and on that basis,grid voltage dip(dip depth p=0.9)was simulated for the complete doubly-fed generator model.Simulation results showed that the established doubly-fed generator model and the corresponding generator-side and grid-side control models could simulate operation under voltage dip and meet theoretical expectation,thus achieving the purpose of setting up a research and test platform for further torque oscillation optimization control.
作者
张纪昱
王志新
Zhang Jiyu;Wang Zhixin(College of Telecommunication and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《电气自动化》
2019年第6期4-6,82,共4页
Electrical Automation
