University of Mohaghegh Ardabili Journal of Operation and Automation in Power Engineering 2322-4576 2 1 2014 06 01 Accelerating the Composite Power System Planning by Benders Decomposition 1 9 164 EN Behnam Alizadeh Department of Electrical Engineering, Iran University of Science & Technology, Tehran, Iran Shahram Jadid Department of Electrical Engineering, Iran University of Science & Technology, Tehran, Iran Journal Article 2006 02 17 This paper presents an application of Benders decomposition to deal with the complexities in the simultaneous Generation Expansion Planning (GEP) and Transmission Expansion Planning (TEP). Unlike the power system operation fields of study, the power system planning methods are not expected to be fast. However, it is always preferable to speed up computations to provide more analysis options for the planner. In this study, Benders decomposition has been applied to solve a mixed integer linear programming formulation of simultaneous GEP & TEP problem. The method has been tested on two test systems: Garver 6-bus system and IEEE 30-bus system. The results are compared to the unified solution of the problem formulation to show the consequent improvements from Benders decomposition. https://joape.uma.ac.ir/article_164_a7b3c42db625db709f164d9d7d40c5ff.pdf