Improving Reliability by Optimal Allocation of Protection Devices and Distributed Generation Units

Subject Areas : Communication

حمیدرضا اکبری ¹ , Amirhosein Bolurian ² , Mahmoud Modaresi ³

1 - گروه مهندسی برق، واحد یزد، دانشگاه آزاد اسلامی، یزد ، ایران
2 - گروه مهندسی برق، واحد یزد، دانشگاه آزاد اسلامی، یزد ، ایران
3 - Faculty of Electrical Engineering, Islamic Azad University South Tehran Branch, Tehran, Iran

Received: 2017-10-20 Accepted : 2017-11-12 Published : 2017-12-01

Keywords: Distribution network, Reliability Improvement, particle swarm optimization algorithm, Protection design,

Abstract :

In this paper, two protective devices, recloser and cutout fuse, are placed simultaneously. Indeed, main contribution of this research is considering Distribution Generation (DG) placement in this problem. The multi objective function has been formulated based on minimizing power loss and maximizing reliability. Selection of reliability indices has been performed based on a compromise between customer satisfaction and seller. This problem is solved by Particle Swarm Optimization (PSO) algorithm and tested on the part of practical distribution system. The reliability indices are System Average Interruption Duration Index (SAIFI), Cost of Energy Not Supplied (CENS), System Average Interruption Frequency Index (SAIFI) and Momentary Average Interruption Frequency Index (MAIFI). Simulation has been performed in part of practical distribution system by introduced several scenarios and cases.