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Title: | Weakest Bus Based on Voltage Indices and Loadability | Authors: | Ahmed Elmagzoub Abdelatti Halimatun Hashim Izham Zainul Abidnin Adrian Sie |
Issue Date: | 2015 | Conference: | The 3rd National Graduate Conference (NatGrad2015), Universiti Tenaga Nasional, Putrajaya Campus, 8-9 April 2015 | Abstract: | Voltage instability issue is a significant issue that could happen in a power system due to its contingency condition. Voltage collapse in certain part of the system will lead to total outage of the whole system. Therefore voltage instability study is important in power system planning and operation in order to avoid the severity conditions and make assure the reliability and continually operation. In addition, line outage in a power system is one of the contingency events that contribute to voltage collapse phenomenon. Maximum load-ability ranking process of branches/buses can be conducted by computing line stability index of each line while increasing the reactive power loads of a particular line. In this paper the voltage stability indices used are namely Fast Voltage Stability index, FVSI and Line Stability Index, LQP. The values of these indices indicate the voltage stability condition in the system and are used to rank the line outage contingency. The weakest bus in a power system is identified as the location for installing PV solar system to the network. The scenario with high ranking implies that it contributes to system instability. The information from the contingency ranking denotes the severity of the voltage instability condition in a power system due to increasing reactive power (Q) of particular loads. The proposed contingency ranking technique was tested on an IEEE 30 bus reliability test system. | URI: | http://cogs.uniten.edu.my/portal/NatGrad2015/Proceedings/EP/PaperID_67.pdf http://dspace.uniten.edu.my/jspui/handle/123456789/10203 |
Appears in Collections: | COGS Scholarly Publication |
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