摘要
随着风力发电的快速发展,如何连接风电场和电网成为至关重要的问题。研究了基于双馈感应电机(DFIG)的风电场连接方式及控制策略,通过与交流输电和电流源型高压直流输电(CSC- HVDC)的比较,说明电压源型高压直流输电(VSC-HVDC)技术在连接风电场与电网方面具有独特优势。在换流站的dq解耦控制基础上,对DFIG与VSC-HVDC的换流站的控制设计进行了研究。利用PSCAD/EMTDC平台对该方案进行了仿真研究。仿真结果表明,该方案可以实现一个换流站连接多台DFIG的结构,并具有良好的控制效果。
With the fast development of wind power generation, how to connect wind farms to power grids becomes a crucial problem. This paper studies the connection methods and the control strategy of wind farms using DFIG wind turbines. Compared to AC and current source converter based HVDC （CSC-HVDC） transmission, VSC-HVDC transmission technology has its unique advantages in connecting wind farms to the grids. Based on the d-q decoupling control method, the control scheme of DFIG and VSC-HVDC converter is studied. In order to verify the feasibility of the control scheme, simulations are carried on the platform of PSCAD/EMTDC. The results show the validity of proposed connection method and control strategy.
出处
《电力系统自动化》
EI
CSCD
北大核心
2007年第19期64-67,共4页
Automation of Electric Power Systems
基金
北京市自然科学基金(3073021)。~~
关键词
风力发电
双馈感应电机
电压源型高压直流输电
wind power generation
doubly fed induction generator （DFIG）
voltage source converter based high voltage directcurrent （VSC-HVDC）
