基于MMC-HVDC风电场联网的稳态特性的研究  

Research about Steady Characteristics for MMC-HVDC Applied to Wind Farm Networking

作　　者：倪堃[1] 邱东晓[1] 卜能源 江政昕[1] 

机构地区：[1]浙江嘉兴电力局,浙江嘉兴314000

出　　处：《电气技术》2012年第12期22-26,31,共6页Electrical Engineering

摘　　要：基于MMC-HVDC输电方式较比传统交流和VSC-HVDC等输电方式具有输送电压等级高、输送容量大和谐波特性好等优点,提出了采用MMC-HVDC对变速恒频双馈感应风机(DFIG)与电网相连,系统设计了相应的控制策略,最后在PSCAD/EMTDC仿真环境下,对系统进行仿真分析。仿真结果表明风电场之间能够独立运行且能实现有功功率和无功功率的解耦控制;MMC-HVDC系统两端也能够独立控制且具有良好的谐波特性,因此验证了该并网方式和控制策略的正确性和有效性。Based on MMC-HVDC have more advantages than VSC-HVDC, such as higher transmission voltage, higher capacity and better harmonic characteristics, This paper proposed the synchronization technology of wind power based on MMC-HVDC, the wind farms adopted VSCF doubly-fed induction generator （DFIG）, the system had designed corresponding control strategy. Finally, in the PSCAD/EMTDC simulation environment, the system had been simulated and analyzed. Simulation results show that the wind farms can run independently and achieve decoupling control between the active and reactive power; MMC-HVDC system also can be controlled independently both ends and has the good harmonic characteristics, Therefore, verifying the correctness and effectiveness of the synchronization technology and control strategies.

关 键 词：风力发电 双馈感应风机 模块化多电平电压源换流器 高压直流输电 控制策略 

分 类 号：TM614[电气工程—电力系统及自动化]