A novel non-linear security based approach to assess transfer capability at Idaho Power Company

This paper presents a novel non-linear security- based approach for transfer capability assessment in Idaho Power Co. The objective of the study is to maximize a specific power transfer without violation of the monitored constraints. Contingency analysis is performed. Contingencies that have the most limiting effect on the transfers are determined and the most limiting facilities are identified. The smallest secure operating region is determined. The effect of mitigation measures on the transfer capability limit is analyzed. The study was performed using full AC analysis methodology for contingency screening and transfer studies. AC limits for transfer scenarios are computed based on thermal, voltage and voltage stability constraints.