【摘要】 基于模块化多电平换流器的多端柔性直流输电(modular multi-level converter based multi-terminal high voltage direct current,MMC-MTDC)技术,能够实现多电源供电、多落点受电。作为一种更为灵活、快捷的输电方式,MMC-MTDC在新能源并网、电网互联等方面具有广阔的应用前景。本文主要研究分析对通信要求较低、应用较为广泛的MMC-MTDC系统的电压裕度控制策略,并仿真验证了该控制策略的正确性和有效性。更多还原

【Abstract】 Modular multi-level converter based multi-terminal high voltage direct current(MMC-MTDC)enables multiple power supplies and power receiving at multiple locations. As a more flexible and efficient transmission mode,MMC-MTDC has broad application prospects in the new energy grid-connection,grid interconnection,etc,while it has less requirement of the communication. The control strategy of MMC-MTDC system is analyzed in this paper,and its correctness and validity are verified through simulation.更多还原