Coordinated preventive maintenance scheduling of GENCO and TRANSCO in restructured power systems

Preventive maintenance of generating units and lines, in a competitive electric energy environment is proposed. Inclusion of transmission constraints and forced outage rates, over a specified operational period is considered. For generator maintenance the objective of the ISO is to maintain adequate...

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Bibliographic Details
Published in:International journal of electrical power & energy systems 2009-11, Vol.31 (10), p.626-638
Main Authors: Geetha, T., Swarup, K. Shanti
Format: Article
Language:English
Subjects:
Applied sciences
Bender’s decomposition
Coordination penalty factors
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
Electrical power engineering
ELNS (expected load not served)
Exact sciences and technology
Lagrangian Relaxation
Miscellaneous
Operation. Load control. Reliability
Power networks and lines
Risk penalty factors
Transmission constraints
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Summary:Preventive maintenance of generating units and lines, in a competitive electric energy environment is proposed. Inclusion of transmission constraints and forced outage rates, over a specified operational period is considered. For generator maintenance the objective of the ISO is to maintain adequate level of reliability throughout the operational period, for which Bender’s decomposition technique is used. The objective of the GENCO is to maximize profit or to minimize loss in profit, for which transmission constrained price based unit commitment (TCPBUC), based on Lagrangian relaxation method is used. Bender’s decomposition technique is used for line maintenance, with adequate level of reliability. A coordinating technique using penalty factors is incorporated to obtain convergence of the conflicting objectives. The transmission constraints are modeled using dc sensitivity factors. Detailed case studies of six-bus systems and IEEE RTS system are presented and discussed.
ISSN:0142-0615
1879-3517
DOI:10.1016/j.ijepes.2009.06.006