A Proposed Method for Reliable Scheduling in Deregulated Power Systems

A Proposed Method for Reliable Scheduling in Deregulated Power Systems

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Part of #A Proposed Method for Reliable Scheduling in Deregulated Power Systems# :

Publishing year : 2006

Conference : Twenty-first International Power Conference

Number of pages : 9

Abstract: Electric power systems are typically scheduled at least cost-related to technical and reliability constraints. This paper presents a probabilistic approach for reliable scheduling in a restructured power system. A competitive structure is proposed which includes a purchasing agency with a centrally optimized scheduling (MaxISO structure). Spinning and non-spinning reserves are considered in the proposed approach. The value of the risk is deduced from the generation model. The required generation model is constructed using the outage replacement rate (ORR) of units. The load forecast uncertainty is included in reliability assessment. This is due to increased uncertainty associated with competition. The concept of area risk curves is used to allow the inclusion of a non-spinning reserve. The performance of the proposed approach is verified through numerical case studies using a test system.