Title :
Practical method for adjusting power flow unsolvable cases based on grid electric transportation properties
Author :
Feng, Hong ; Chao, Liu ; Jinfu, Chen
Author_Institution :
Electr. Power Security & High Efficiency Lab., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
This paper presents a power flow adjustment method for unsolvable power flow equation. The proposed method is based on the line transfer limit and system PV, QV and Pδ curve. New slop indexes are defined to describe the characteristics of the system infeasible critical point. Using the indexes can find the system weak line when system power flow is on the solution boundary. Paper also discussed the relationship between the line transfer limit and system static stability. The method is tested on EPRI36 nods system and Hunan system.
Keywords :
critical points; load flow control; transportation; EPRI36 nods system; Hunan system; critical point; grid electric transportation properties; line transfer limit; power flow adjustment method; power flow equation; Equations; Generators; Indexes; Load flow; Power system stability; Sensitivity; line transfer limit; power flow adjustment; static stability; unsolvable power flow;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5768889
