Security-Constrained Transmission Expansion Planning: A Multi-Objective Approach

This article presents a multi-objective framework for transmission expansion planning (TEP) with steady state voltage security consideration using AC optimal power flow (AC-OPF) within a market environment. The objectives are to minimize the investment costs (IC), operation costs (OC), load shedding cost (LSC) and also to maximize the voltage stability margin (VSM). A multi-objective mathematical programming (MMP) is formulated and the ε-constraint method is used to solve the problem. The proposed model has been applied to the well-known IEEE 24-bus Reliability Test System. The detailed results from the case study have been presented and discussed. Results are efficient and show the capability and the effectiveness of the proposed algorithm

Keywords:

AC-optimal power flow , multi-objective mathematical programming , transmission expansionplanning , voltage stability margin