标题：Long-term power system dynamics analysis by time stamping on events sequence
作者：Wang, Chao ;Chu, Xiaodong ;Zhang, Wen
作者机构：[Wang, Chao ;Chu, Xiaodong ;Zhang, Wen ] Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education, School of Electrica 更多
会议名称：2014 International Conference on Power System Technology, POWERCON 2014
会议日期：20 October 2014 through 22 October 2014
来源：POWERCON 2014 - 2014 International Conference on Power System Technology: Towards Green, Efficient and Smart Power System, Proceedings
关键词：discrete events; long-term dynamics; power flow; time stamping
摘要：A practical approach to long-term power system dynamics analysis should make a trade-off between result precision and time consumption. To address the time consuming issue of full scale numerical integration, an analysis method is proposed which tracks system evolving states interwoven by continuous dynamics and discrete events. Feasible operating states are solved by using temporal power flow (TPF) routines, which are convergent points of fast dynamics. TPF is driven by load growth that is embedded into the time horizon. Events are triggered and time stamped during the TPF routines, which involves OLTCs, exciter limiters and branch load encroachment, etc. Upon detecting instability or collapse, the routines are stopped. Simulation results on the New England 39-bus system verify the effectiveness of the proposed method. © 2014 IEEE.