基于轨迹灵敏度的频率协调控制参数影响分析  

Influence Analysis of Frequency Coordinated Control Parameters Based on Trajectory Sensitivity

作　　者：田政鳞 王正宇 Tian Zhenglin;Wang Zhengyu(School of Electric Power Engineering,South China University of Technology,Guangzhou Guangdong 510641,China)

机构地区：[1]华南理工大学电力学院,广东广州510641

出　　处：《电气自动化》2023年第5期75-77,80,共4页Electrical Automation

摘　　要：附加频率协调控制的快速频率响应资源是解决新能源接入引起的惯量降低和调频能力不足问题的重要手段。由于缺乏量化分析方法,难以评估频率协调控制参数对频率动态特性的影响,限制了其调频能力的发挥。为此,建立了考虑频率协调控制的系统频率响应模型。通过引入轨迹灵敏度方法,从影响时间、方式和程度三个方面量化分析了虚拟惯量系数和频率下垂系数对频率动态特性的影响机理,并提出了基于主导影响因素的参数调整策略。研究结果表明,轨迹灵敏度可以量化分析控制参数对频率动态特性的影响,为实际工程的参数整定提供了指导。The fast frequency response resource of additional frequency coordination control is an important mean to solve the problem of inertia reduction and insufficient frequency regulation capability caused by the access of new energy sources.Due to the lack of quantitative analysis methods,it is difficult to evaluate the influence of frequency coordination control parameters on frequency dynamic characteristics,which limits its frequency modulation capability.Therefore,a system frequency response model considering frequency coordination control was established.By introducing the trajectory sensitivity method,the influence mechanism of the virtual inertia coefficient and frequency droop coefficient on the frequency dynamic characteristics was quantitatively analyzed from the three aspects of influence time,mode and degree.A parameter adjustment strategy based on dominant influencing factors was proposed.The research results show that the trajectory sensitivity can quantitatively analyze the influence of control parameters on the frequency dynamic characteristics,which provides guidance for parameter tuning in practical engineering.

关 键 词：频率响应模型 新能源调频 虚拟惯量控制 频率下垂控制 轨迹灵敏度 

分 类 号：TM721[电气工程—电力系统及自动化]