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A fuzzy logic approach to security-based bulk power system reliability evaluation

DSpace at IIT Bombay

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Title A fuzzy logic approach to security-based bulk power system reliability evaluation
 
Creator VERMA, AK
KUMAR, HMR
KESHAVAN, BK
 
Description The most significant parameter in a bulk power adequacy assessment are the load point and overall system "load curtailment indices." Many utilities have difficulty in interpreting the calculated load curtailment indices, as the existing models do not always consider realistic and practical operating conditions. Simple linear programming formulations are found to be inadequate in satisfying realistic system objectives and constraints. The present paper models uncertainties in loads and generations as fuzzy numbers. The load curtailment indices (while load and generation being uncertain) are calculated using fuzzy linear programming. The proposed method is applied to the RBTS 6-bus and IEEE 14-bus test system. The results of the computation are optimistic in terms of minimization of the objective function compared to probabilistic approach, and these are more realistic. In the above application, contingency analysis has been carried out up to 2nd level, and contingencies that cause the system to go to extreme emergency state have been accounted for.
 
Publisher HEMISPHERE PUBL CORP
 
Date 2011-07-31T06:25:44Z
2011-12-26T12:52:51Z
2011-12-27T05:39:48Z
2011-07-31T06:25:44Z
2011-12-26T12:52:51Z
2011-12-27T05:39:48Z
2000
 
Type Article
 
Identifier ELECTRIC MACHINES AND POWER SYSTEMS, 28(1), 45-54
0731-356X
http://dx.doi.org/10.1080/073135600268504
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8012
http://hdl.handle.net/10054/8012
 
Language en