An Adaptive Protection Scheme for Distribution Networks with Distributed Generation Sources in Various Operational Modes

سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 183

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شناسه ملی سند علمی:

JR_MJEE-14-1_013

تاریخ نمایه سازی: 25 بهمن 1401

چکیده مقاله:

Distributed Generation (DG) is a common technology in today’s distribution networks due to its exclusive benefits. However, DG units introduce a series of new issues to distribution network beside their benefits. Adding a DG unit to the network can change the direction and magnitude of the power flow and fault currents through branches. It may cause the failure of the original protection system or false tripping of some existing relays. In this paper, a new adaptive approach is introduced for classification of different DG topologies in distribution network using the existing setting groups in over current relays. This method determines those settings such that maximum number of the possible scenarios for different operations in distribution system are covered including grid-connected mode, autonomous mode, and DGs capacity changes. In order to verify the performance of the new method, two simulation studies are performed on ۱۴-node and IEEE ۳۳-node distribution network test systems. DIgSILENT software has been employed to simulate the network in various operational modes.

نویسندگان

Reza Rahmani

Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran.

Seyed Hossein Sadeghi

Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran.

Seyed Amir Hosseini

Department of Electrical Engineering, Golpayegan University of Technology, Isfahan, Iran.

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