Effects of selected operating considerations in health analysis of interconnected systems

A hybrid probabilistic/deterministic technique designated as the well-being approach is utilized in this paper to determine unit commitment in interconnected systems. Assessment of spinning reserve requirements in an interconnected generating system should include not only the generation and load models of the participating systems, but also the tie-line model and the agreement between the interconnected systems. A number of studies are illustrated to evaluate the impact on the interconnected system well-being indices of factors such as load forecast uncertainty, degree of generating unit postponability and derated states. The IEEE-RTS is used in this paper to illustrate these effects