交流变速抽蓄机组单通道电力系统稳定器设计研究  

A single channel power system stabilizer for AC variable speed pumped storage units

作　　者：郑盛诚 章广清 赵文彬 吴文军 魏书荣 施宏亮 ZHENG Shengcheng;ZHANG Guangqing;ZHAO Wenbin;WU Wenjun;WEI Shurong;SHI Hongiang(School of Electrical Engineering,Shanghai Electric Power University,Shanghai 200090,China;Shanghai Minghua Electric Power Science&Technology Co.,Ltd.,Shanghai 200090,China)

机构地区：[1]上海电力大学电气工程学院,上海200090 [2]上海明华电力科技有限公司,上海200090

出　　处：《电力系统保护与控制》2024年第23期150-158,共9页Power System Protection and Control

基　　金：国家自然科学基金项目资助(52377063)。

摘　　要：为了弥补交流变速抽蓄机组涉网环节的不足,依据我国对大型发电机组并网的技术要求,提出了一种适用于交流变速抽蓄机组的单通道电力系统稳定器(power system stabilizer, PSS)设计方法,同时还给出了变速机组与定速机组的协同响应策略。在励磁系统特性方面,对比分析了变速机组与定速机组的差异,改进了PSS的传递函数结构,提出了相关参数的估算方法,能够适应交流变速抽蓄机组的并网要求。在厂内协调方面,针对变速机组与定速机组的协同控制需求,研究了基于变模态分解技术的协同响应方案,并对比了抽蓄电厂的整体反应效果,能够用于指导首台变速机组投产的工程实际。为了进行仿真分析,搭建了IEEE 9节点系统,并利用真实风电场数据,构建了电网功率扰动场景,验证了所提方法的有效性。To compensate for the shortcomings in the grid-rated aspects of AC variable-speed pumped storage units,and given China’s technical requirements for the grid connection of large-scale generators,a design approach for a single-channel power system stabilizer(PSS)suitable for AC variable-speed pumped storage units is proposed.A collaborative response strategy between variable-speed and constant-speed units is also provided.On excitation system characteristics,the differences between variable-and fixed-speed units are compared and analyzed,and the transfer function structure of the PSS is improved.An estimation method for relevant parameters is proposed,one which can adapt to the grid connection requirements of AC variable-speed pumped storage units.For in-plant coordination,a collaborative response scheme based on variable modal decomposition technology is studied for the collaborative control requirements of variable-and fixed-speed units,and the overall response effects of pumped storage power plants are compared.These can be used to guide practical engineering of the first variable-speed unit.To conduct simulation analysis,an IEEE 9-node system is built,and real wind farm data is used to construct a power grid disturbance scenario.This verifies the effectiveness of the proposed method.

关 键 词：新型电力系统 交流变速抽蓄机组 单通道电力系统稳定器 参数辨识 动态调节 厂内协同 

分 类 号：TV743[水利工程—水利水电工程] TV734