Modern Transmission Expansion Planning Considering Renewable Sources

Abstract

With an increasing demand for electric power, there is a need for construction of new transmission lines to guarantee a reliable and economic operation. The aim of this research is to demonstrate the methodology based on the deterministic concept by considering the technical and market economic regulation principles. In this research work both single and multi-objective functions are considered. Single objective function called social welfare is maximized. For multi-objective functions which are investment cost and wind curtailment optimum location of transmission line is found by considering intermittent nature of wind and variable load data. The multi-objective functions are solved using non-dominated sorted differential evolution algorithm. To obtain the desired results based on decision maker preference fuzzy logic approach is utilized. Effect of the uncertainty in wind and load forecast is performed. The results obtained show the variation in costs based on the variation in random error percentage. The proposed methodology is illustrated on different IEEE bus systems.