Abstract:

The ordinal optimization theory based on practical engineering provides an efficient tool to obtain good enough solutions to transmission expansion planning problem with a high probability, and helps to remarkably lighten the computation load and well satisfy the engineering requirements. In this paper, the ordinal optimization theory is employed to seek good enough planning schemes for transmission expansion, with the sum of the expansion investment cost to transmission owners, the generation cost to generators and the possible outage cost to customers as the objective function. Test results in a Garver system show that the transmission expansion planning based on the ordinal optimization theory is effective and feasible in practice.

Key words: transmission expansion planning, ordinal optimization theory, good enough solution