欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
该文在功率同步控制基础上,结合电流矢量控制特点,并引入瞬时阻尼功率分量,提出一种适用于模块化多电平换流器型高压直流输电系统（modular multilevel converter based HVDC,MMC-HVDC）连接极弱受端交流电网的功率阻尼同步控制策略。建立MMC-HVDC系统的小信号数学模型,分析在极弱受端交流系统条件下功率阻尼同步控制器参数对系统稳定性的影响,研究在不同短路比条件下使MMC-HVDC系统保持稳定运行的控制器参数的调节范围。最后在PSCAD/EMTDC仿真环境下搭建MMC-HVDC连接极弱受端交流电网的仿真模型,并进行分析验证。结果表明所提出的功率阻尼同步控制方法不仅具有良好的控制性能,而且可以提高MMC-HVDC系统在极弱受端交流系统条件下的运行稳定性。
英文摘要：
Integrating the current vector control and power synchronization control, and introducing instantaneous damping power component, a novel power damping synchronization control was proposed for modular multilevel converter based HVDC （MMC-HVDC） connecting to an extremely weak receiving AC grid. A small signal mathematical model of MMC-HVDC system was deduced, and the impact of power damping synchronization controller parameters on system stability was analyzed under extremely weak receiving AC system condition. Then, the controller parameter adjustable range, with which MMC-HVDC system could maintain stable operation, was investigated under different short circuit ratios （SCRs）. Finally, The MMC-HVDC system connected to an extremely weak receiving AC grid was developed, and simulation analysis was conducted in the PSCAD/EMTDC. The results show that the presented power damping synchronization control method has favorable performances, and has the ability to strengthen the operation stability of MMC-HVDC connecting to an extremely weak receiving AC grid.
同期刊论文项目
同项目期刊论文
期刊信息
位置：