跟网型逆变器附加频率控制方法与参数分析  

Additional Frequency Control Method for Grid-following Converter and Corresponding Parametric Analysis

作　　者：姚文峰 邱建[2] 张野 杨子千 YAO Wenfeng;QIU Jian;ZHANG Ye;YANG Ziqian(State Key Laboratory of HVDC(Electric Power Research Institute,China Southern Power Grid),Guangzhou 510663,China;Power Dispatching Control Center,China Southern Power Grid,Guangzhou 510663,China)

机构地区：[1]直流输电技术国家重点实验室(南方电网科学研究院),广州510663 [2]中国南方电网电力调度控制中心,广州510663

出　　处：《电力系统及其自动化学报》2024年第10期143-150,共8页Proceedings of the CSU-EPSA

基　　金：南方电网公司科技项目(ZDKJXM20200059)。

摘　　要：为提升接入弱网下电压源型变流器的锁相环同步暂态稳定性,针对现有的附加频率控制措施,提出一种适用于多类型锁相环暂态稳定性提升方法的统一分析模型。在此基础上,基于线性矩阵不等式构建了电流可行域,量化分析了附加控制环节中比例增益系数的可行范围。最后,基于RT-BOX硬件在环实验平台验证了所提的统一分析模型及求解比例增益系数可行范围方法的有效性。To improve the phase-locked loop(PLL)synchronization transient stability of a voltage source converter connected to weak grid,a unified analysis model suitable for studying the transient stability enhancement method for multi-PLL is proposed in this paper,which is aimed at the existing additional frequency control measures.On this basis,a feasible region of current is constructed based on linear matrix inequality,and a feasible range of proportional gain coefficient in additional control links is quantitatively analyzed.Finally,the proposed unified analysis model and the method for calculating the feasible range of proportional gain coefficient were validated on an RT-BOX hardware-in-the-loop experimental platform.

关 键 词：弱连接电压源型变流器 暂态稳定性提升方法 统一分析模型 线性矩阵不等式优化法 电流可行域 

分 类 号：TM73[电气工程—电力系统及自动化]