Transaction Based Transmission Reliability Evaluation Model

Based on the ability to fulfil the transaction under certain market mechanism in which the ancillary service market has not yet been in operation, a TTREM (transaction based transmission reliability evaluation model) considering generation price and customer choice on reliability has been developed for accurate assessment of reliability of transmission in the market environment. In the model the effects of transaction and market mechanism on the active power security correction has been taken into account and the traditional model for performance analysis (AC or DC power flow coupled with a remedial actions algorithm aimed at the minimum of load curtailment) is replaced with the proposed transaction model. Examples show that the approach is correct and practical