摘要
此处提出了适用于模块化多电平换流器(MMC)输电系统的主动式幅值-频率孤岛检测算法和孤岛切换策略,以保证切换前后负载电压幅值、频率、初相角三要素不变为基本思想,重点确保切换过程电压相位的平滑过渡,实现了MMC输电系统的孤岛切换功能。最终,实验验证了所提算法的有效性、可行性和可靠性。
An active amplitude-frequency island detecting method and transferring strategies for modular multilevel converter(MMC)transmission system are proposed and the amplitude,frequency and the initial phase angle of load voltage,especially the phase,are controlled to be unchangeable during the transition,the island transferring of MMC is accomplished.Finally,the validity,feasibility and reliability of the given methods are verified by experimental results.
作者
程旭
赵晓燕
陈建福
陈勇
CHENG Xu;ZHAO Xiao-yan;CHEN Jian-fu;CHEN Yong(Zhuhai Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Zhuhai 519000,China)
出处
《电力电子技术》
北大核心
2023年第9期87-90,共4页
Power Electronics
基金
南方电网公司科技项目(030400KK52222021)
关键词
模块化多电平换流器
孤岛检测
孤岛切换
modular multilevel converter
island detecting
island transferring
