湖南工业大学学报2024，Vol.38Issue(5)：26-32,7.DOI:10.3969/j.issn.1673-9833.2024.05.004
考虑传输时滞的电力负荷频率采样控制系统稳定性分析
Stability Analysis of Power Load Frequency Sampling Control System Considering Transmission Delay
摘要
Abstract
A research has been conducted on a class of stability problems related to power load frequency sampling control systems with transmission delay taken into consideration.Firstly,a PI type LFC system scheme is adopted,followed by an establishment of a closed-loop LFC system model with sampling and transmission delay taken into consideration.Secondly,based on the established model,the delay stability margin of the system is calculated by using a criterion based on two-sided looped-functional,with a study on the relationship between the sampling period of the system and the delay stability margin,thus verifying the results through simulation by using a single region LFC system.The calculation results show that compared with existing literature,under the same system parameter conditions,there is a reduction in the conservatism of the results obtained by the proposed method,and the larger the sampling period,the smaller the stability margin of the system delay.A amount of time delay can increase the upper bound of the system sampling period.The simulation results further validate the effectiveness and advantages of the proposed method.关键词
负荷频率控制/传输时滞/采样周期/采样控制系统/双边闭环泛函Key words
load frequency control/transmission delay/sampling period/sampling control system/two-sided looped-functional分类
计算机与自动化引用本文复制引用
王玉雯,曾红兵,付国龙..考虑传输时滞的电力负荷频率采样控制系统稳定性分析[J].湖南工业大学学报,2024,38(5):26-32,7.基金项目
国家自然科学基金资助项目(62173136) （62173136）
