电网技术2017，Vol.41Issue(4)：1174-1180,7.DOI:10.13335/j.1000-3673.pst.2016.1701
基于改进EEAC法的随机复杂多机系统的暂态稳定性分析
Transient Stability Analysis of Stochastic Complex Multi-Machine System Based on Improved Extended Equal-Area Criteria
摘要
Abstract
With increasing diversification of power system and application of power electronic technology,uncertainty of power system becomes more and more serious,and traditional deterministic transient stability analysis methods encounter severe challenges.An improved extended equal-area criteria (EEAC) method is proposed for transient stability analysis of stochastic complex multi-machine systems in this paper.Firstly,a stochastic differential equation model of multimachine systems is established.Then a stochastic multimachine system equivalent to stochastic single machine infinite bus (SMIB) system is set up by swarming according to coherency.Finally,acceleration and deceleration area is constructed,and Heun algorithm is used to seek system critical clearing times (CCTs).Compared with numerical simulation based on Monte Carlo method,accuracy and effectiveness of the proposed method are verified.The method is applied to calculate CCTs of a typical 10 machine system.CCTs for different stochastic disturbance intensities are compared comprehensively with probability and statistical methods.关键词
随机微分方程/暂态稳定/改进EEAC/极限切除时间Key words
stochastic differential equation/transient stability/improved EEAC/critical clearing time分类
信息技术与安全科学引用本文复制引用
黄通,王杰..基于改进EEAC法的随机复杂多机系统的暂态稳定性分析[J].电网技术,2017,41(4):1174-1180,7.基金项目
国家自然科学基金(61374155) （61374155）
高等学校博士学科点专项科研基金(20130073110030).Project Supported by National Natural Science Foundation of China (61374155) （20130073110030）
Specialized Research Fund for the Doctoral Program of Higher Education of China (20130073110030). （20130073110030）
