Static security in power system operation with fuzzy real load conditions

Journal Article · Wed Feb 01 04:00:00 EST 1995 · IEEE Transactions on Power Systems

DOI:https://doi.org/10.1109/59.373930· OSTI ID:49193

Abdul-Rahman, K H; Shahidehpour, S M ^[1]

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1. Illinois Inst. of Tech., Chicago, IL (United States). Dept. of Electrical and Computer Engineering

This paper presents a mathematical formulation for optimal power flow (OPF) taking into account the fuzzy modeling of static security constraints due to the uncertainty in bus loads. Uncertainties in MW loads and generations are translated into possibility distribution functions. The fuzzy OPF problem is decomposed, via Dantzig-Wolfe decomposition, into subproblems corresponding to the possibility distributions of loads. The effects of phase shifters are modeled as equivalent real power injections at corresponding system buses, which preserves the Y-bus symmetry and maintains minimum memory requirements. Contingency constraints are added to the fuzzy OPF problem. Fuzzy sets are utilized to exercise a tighter control on least cost real power generation with minimum emission dispatch solution. The final solution is a compromise among cost, static security and emission considerations. Numerical results for the application of the proposed approach to test systems are discussed.

• OSTI ID: 49193
• Report Number(s): CONF-940110--
• Journal Information: IEEE Transactions on Power Systems, Journal Name: IEEE Transactions on Power Systems Journal Issue: 1 Vol. 10; ISSN ITPSEG; ISSN 0885-8950
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
COMPUTER CALCULATIONS
COMPUTERIZED CONTROL SYSTEMS
COMPUTERIZED SIMULATION
FUZZY LOGIC
POWER SYSTEMS
STABILITY