含高比例新能源和小水电的孤网频率稳定特性及涉网参数优化  

Frequency Stability Characteristics and Optimization of Grid-Rated Parameters for Isolated Grids with High Proportion of New Energy and Small Hydropower

作　　者：张丹 常东旭 曾丕江 武明康 涂亮 朱益华 ZHANG Dan;CHANG Dongxu;ZENG Pijiang;WU Mingkang;TU Liang;ZHU Yihua(Power Dispatching and Control Center of Yunnan Power Grid Co.,Ltd.,Kunming 650217,China;State Key Laboratory of HVDC,Electric Power Research Institute,CSG,Guangzhou 510663,China;Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System,Guangzhou 510663,China)

机构地区：[1]云南电网有限责任公司电力调度控制中心,昆明650217 [2]直流输电技术全国重点实验室(南方电网科学研究院),广州510663 [3]广东省新能源电力系统智能运行与控制企业重点实验室,广州510663

出　　处：《南方电网技术》2024年第7期11-18,共8页Southern Power System Technology

基　　金：国家重点研发计划资助项目(2022YFB2403500);云南电网有限责任公司科技项目(YNKJXM20220025)。

摘　　要：含高比例小水电和新能源的地区电网被动孤网运行时,孤网内部小水电调速参数、新能源控制保护配置等直接影响孤网的稳定特性。基于实际电网孤网运行的典型案例,分析了影响孤网频率稳定的主要因素,构建了对标多类型孤网运行场景的典型仿真算例模型;通过多维度的量化仿真比对分析,提出了地区电网孤网运行时小水电机网协调、新能源涉网参数优化的一般原则。研究成果支撑孤网运行安全稳定控制预案的制定,助力新型电力系统建设和地区电网的可靠供电。When a regional power grid with a high proportion of small hydropower and new energy operates in a passive isolated grid,the inner stability characteristics of the isolated grids is directly affected by the small hydropower governor parameters and new energy control protection configuration.Based on the typical cases of the actual isolated grids,the dominant factors affecting the frequency stability of each stage of the isolated grids are analyzed,and a typical example simulation model adapted to multi-type isolated grids is constructed.Through multi-dimensional quantitative simulation comparison analysis,the general principles of coordination of small hydropower to grid and optimization of new energy grid-related parameters in the operation of regional isolated grids are proposed.The research results support the development of safety and stability control plans for isolated grid operation,and assist in the construction of new power systems and the reliable power supply of regional power grids.

关 键 词：孤网运行 新能源 小水电 涉网参数 稳定 

分 类 号：TM73[电气工程—电力系统及自动化]