电力系统频率问题浅析与频率特性研究综述  

Review of power system frequency problems and frequency dynamic characteristics

作　　者：陈雪梅 陆超[1] 韩英铎[1] CHEN Xuemei;LU Chao;HAN Yingduo(Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学电机工程与应用电子技术系

出　　处：《电力工程技术》2020年第1期1-9,共9页Electric Power Engineering Technology

基　　金：国家重点研发计划资助项目(2018YFB0904500)

摘　　要：现代电力系统的发展使得系统频率特性更加复杂化,同时系统安全稳定经济运行对频率稳定提出了更高的要求,电力系统频率问题日益显著,关于系统频率特性的研究涌现并被应用于保障系统安全稳定运行。首先回顾了近年来国内外电力系统频率事故的发展过程并结合事故过程中频率特性分析事故原因,结合现代电力系统的特点从多角度分析了高比例电力电子接口装置接入对电力系统频率特性的影响,然后以单机模型为例分析了机组参数对电力系统频率动态过程的多重交互影响,并总结了系统惯量估计、发电机组调频性能监测和两者共同作用对系统频率动态行为影响监测的相关研究及应用情况。最后提出了在未来系统频率特性领域值得探索研究的问题和方向。The development of contemporary electrical power system causes the frequency characteristics more intricate and makes frequency stability more significant.Therefore,power system frequency problems is more and more significant,research on system frequency characteristics emerge and are applied to make system work more securely and steadily.Firstly,it reviews the process and causes of domestic and overseas frequency events in recent years from perspective of frequency dynamic characteristics.Then,combined with the characteristics of modern power system,the impacts on the frequency characteristics of large-scale power electronic interface are analyzed from multiple perspectives.After that,utilizing the single machine model to analyze the influence of generator parameters on multiple interactions of power system frequency dynamics,and summarize the related research and application of system inertia estimation,frequency regulation performance and frequency dynamic characteristics monitoring.Finally,some problems and directions worthy of exploration and research in the field of system frequency characteristics are proposed.

关 键 词：频率特性 频率调节 电力电子接口装置 惯量估计 调频性能监测 

分 类 号：TM732[电气工程—电力系统及自动化]