ENERGY METHOD OF SPINNING RESERVE ASSESSMENT IN INTERCONNECTED GENERATION SYSTEMS

Most of the methods previously developed for unit commitment and spinning reserve assessment ignore the probabilistic aspects of system components. The basic objective in using a probabilistic technique is to maintain the unit commitment risk equal to or less than a specified value throughout the day. A probabilistic technique to assess spinning reserve requirements in interconnected system has recently been published. The technique designated as the 'Two Risks Concept' , is based on capacity assistance and therefore, does not deal with some of the essential system issues pertaining to unit size and lead time in a consistent manner as far as the spinning reserve assessment is concerned. An energy based technique to assess spinning reserve requirements in interconnected systems is presented in this paper. The proposed technique responds to unit size and lead time in a direct way. Two test systems and a hypothetical system are utilised to provide numerical examples.