Long Term Preventive Generation Maintenance Scheduling with Network Constraints and System's Reserve

The completely Electric Power System encompass three parts: Generation, Transmission, and Distribution that all require maintenance to better system’s reliability and energyefficiency. Most generation maintenance scheduling (GMS) packages consider preventive maintenance scheduling forgenerating units over one or two year's time horizon to lessen the total operation costs while fulfilling system energy requirements. In advanced power systems, The inclusion ofnetwork and fuel limitations and demand for electricity have highly increased with related expansions in system size, whichhave led to higher number of generators and lower reserve margins making the generator maintenance scheduling problem more complex. This paper proposes a security constrained model for preventive generation maintenance scheduling problem. For more realistic study, system reliability indices such astransmission security constraints as well as manpower constraints and amount of system reserve are considered for theproposed maintenance-scheduling problem. Impact of load curve on GMS problem is investigated by a novel proposed penalty factor. General Algebraic Modelling System (GAMS) isthe utilized for solving optimization problem. An IEEE 24-bus test system is employed for simulation and show the accuracy of results.

Keywords:

Maintenance scheduling , Network constraint , System reserve