INTERRUPTIBLE LOAD CONSIDERATIONS IN WELL-BEING ANALYSIS OF INTERCONNECTED SYSTEMS

Adequate operating reserve is required in an electric power system in order to maintain a desired level of reliability throughout a given pe riod of time. Interruptible load can be considered as a part of the sy stem operating reserve if it is required. The inclusion of interruptib le load in the assessment of unit commitment in interconnected systems is illustrated in this paper using a well-being framework. A techniqu e is presented to determine the well-being indices of both isolated an d interconnected systems with the inclusion of interruptible load. The impacts on the required number of committed units and the well-being indices of the amount of interruptible load and the corresponding inte rruption time are examined in this paper by application to a hypotheti cal system and to the IEEE-RTS. (C) 1998 John Wiley & Sons, Ltd.