CAJ | 학술논문

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。
기우MMC-HVDC수전방식교비전통교류화VSC-HVDC등수전방식구유수송전압등급고、수송용량대화해파특성호등우점,제출료채용MMC-HVDC대변속항빈쌍궤감응풍궤（DFIG）여전망상련,계통설계료상응적공제책략,최후재PSCAD/EMTDC방진배경하,대계통진행방진분석。방진결과표명풍전장지간능구독립운행차능실현유공공솔화무공공솔적해우공제;MMC-HVDC계통량단야능구독립공제차구유량호적해파특성,인차험증료해병망방식화공제책략적정학성화유효성。
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.