电力系统自动化2017，Vol.41Issue(5)：53-57,5.DOI:10.7500/AEPS20160531010
基于阻尼转矩分析法的时滞丢包统一建模及其应用
Damping Torque Analysis Based Unified Modeling of Time Delay and Data Loss and Its Application
摘要
Abstract
The development of wide-area measurement system (WAMS) has provided a new method for solving inter area oscillation problems in large interconnected power grids,but the time-delay and data-loss appearing with it exerts a negative influence on system stability.The damping torque analysis (DTA) is an important method to analyze small signal stability problems for its clear physical meaning.This paper describes the practical handling method of time-delay and data-loss.Then data loss is turned from a probabilistic event into a precise numerical value by calculating its expected value.Thus the sampling model including time delay and data loss is deduced in both the time and frequency domain.On this basis,a DTA based unified model considering time-delay and data loss is developed.The model is applied to power system stabilizer (PSS) design drawing on the phasor method.Finally,the correctness and feasibility of the unified DTA model considering time delay and data-loss is verified by actual examples.关键词
低频振荡/广域测量系统/阻尼转矩分析法/时滞/丢包/电力系统稳定器Key words
low frequency oscillation/wide area measurement system (WAMS)/damping torque analysis (DTA)/time-delay/data-loss/power system stabilizer (PSS)引用本文复制引用
周涛,陈中,殷大朋,施志强..基于阻尼转矩分析法的时滞丢包统一建模及其应用[J].电力系统自动化,2017,41(5):53-57,5.基金项目
国家自然科学基金资助项目(51277029).This work is supported by National Natural Science Foundation of China (No.51277029). （51277029）
