电网技术2012，Vol.36Issue(11)：129-133,5.
动态近似熵在强迫功率振荡在线检测中的应用
Application of Dynamic Approximate Entropy in Real-time Detection of Forced Power Oscillation
摘要
Abstract
A new method that can detect forced power oscillation in real-time mode is proposed. Firstly, by means of acquiring the signal of power oscillation occurred in tie line the real-time approximate entropy value in continuous time intervals is calculated, and what whether the forced power oscillation occurs is judged by observing dynamic variation of approximate entropy value in continuous time intervals, in addition the real-time performance and anti-interference performance of approximate entropy are analyzed. The availability of approximate entropy in online detection of forced power oscillation and trend forecast of oscillation process is verified by results of simulation of a four-machine two-region system, and simulation results are available for reference to the drafting of emergency control measures.关键词
强迫功率振荡/动态近似熵/实时/检测Key words
forced power oscillation/ dynamic approximate entropy/ real-time/ detection分类
信息技术与安全科学引用本文复制引用
杨小明,刘涤尘,廖清芬,单增礼,罗恒,张红丽..动态近似熵在强迫功率振荡在线检测中的应用[J].电网技术,2012,36(11):129-133,5.基金项目
国家高技术研究发展计划(863项目)(2011AA05A119) （863项目）
国家自然科学基金项目(51077103) （51077103）
国家电网公司大电网重大专项资助项目课题(SGCC-MPLG029-2012). （SGCC-MPLG029-2012）
