Technique for assessment of voltage stability in Ill-conditioned radial distribution network

Moghavvemi, M. and Faruque, M.O. (2001) Technique for assessment of voltage stability in Ill-conditioned radial distribution network. Power Engineering Review, 21 (1). pp. 58-60. ISSN 02721724, DOI

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A technique is proposed in this letter to study voltage collapse situation in a radial distribution network. The radial distribution network has been reduced to a single line equivalent circuit and then represented through a π network. A stability index is developed that indicates the severity of the loading situation of the system. The index can have a maximum value of one (1.00) when the system is at the point of collapse and a minimum value of zero (0) when there is no load in the system. Voltage collapse can be assessed based on the value of the developed index. If the system yields a value exceeding its maximum limit of stability index (1.00) it indicates voltage collapse situation. The proposed technique is tested on a practical system of 12-bus radial system (main feeders only) and on a 27-bus radial distribution system with laterals. The results obtained are encouraging and indicate that the technique has the potential to be used as a tool for system monitoring and future load planning.

Item Type: Article
Uncontrolled Keywords: Electric breakdown; Electric lines; Equivalent circuits; Radial basis function networks; Voltage control; Single line equivalent circuit; Voltage collapse; Voltage stability; Voltage stabilizing circuits
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Ms. Norhamizah Tamizi
Date Deposited: 20 Mar 2014 04:03
Last Modified: 23 Nov 2017 03:06

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