SECURITY PREVENTIVE MAINTENANCE SCHEDULING INCORPORATING OPTIMAL RESERVE PROCUREMENT

Effective preventive maintenance scheduling (PMS) of generating units ensures a reliable supply of demand and economical operation of power systems. Reserve acquisition as an imperative constraint of PMS promotes the system reliability as well as security. Hence, system reserve allocation may effect on economy of power markets especially in a restructured environment. In this paper, a new linearized formulation for cost-based preventive maintenance scheduling associated with the reserve procurement is developed as a mixed integer linear programming (MILP). Here, system reserve procurement and required energy scheduling are performed simultaneously to examine the economic benefit of proper reserve allocation. Several analyzes incorporating network constraints are conducted to investigate the impact of system reserve assessment on maintenance scheme as well as system expenditures. The well-known IEEE RTS is employed to demonstrate the effectiveness of the proposed methodology while simulation results are promising.