Locational transmission capacity reserve determination using system well-being analysis

• We proposed a method to determine the transmission capacity reserve in the system.
• We proposed the way to bridge a gap between deterministic and probabilistic concepts.
• A very straightforward procedure based on system well-being analysis is presented.
• We provided a practical illustration to help power utilities understand its procedure.

This paper presents a methodology to determine the locational transmission capacity reserve required to provide additional transmission transfer capability to access remote generation. The methodology is based on translating the accepted deterministic criteria into probabilistic measures using the system well-being analysis framework. The objective of utilizing system well-being analysis is to help to identify and characterize the actual system reliability concerns regarding the exclusive use of deterministic criteria, and to help to determine what the appropriate deterministic reliability criteria should be so that power utilities can adjust and expand the deterministic criteria to cope with uncertainty considerations that exist in practical power systems. An application of system well-being analysis to determine the locational transmission capacity reserve on an actual island system in Canada is illustrated in this paper.