Protection Coordination Method Using Symmetrical Components in Loop Distribution System
نویسندگان
چکیده
Power utilities worldwide commonly use the radial distribution system because of its advantages being simple in structure and having relatively inexpensive installation costs. It has a disadvantage that power supply reliability is low load side fault section will suffer from an outage event system. However, recently, with ICT (Information Communication Technologies) development, required to be high as outage-susceptible loads increase. In addition, increase connection distributed resources such renewable energy electric vehicles making it impossible predict flow reducing line utilization. Therefore, loop proposed measure solve this problem. Because all buses (nodes) have two or more routes, they are reliable than allows them improve utilization by connecting lines different peak times. case system, current supplied both directions, properly isolate protection method conventional The permissive overreach transfer trip (POTT) using communication compensate for limitations devices, other directional distance relay, proposed. these methods operate determining direction but disadvantage. difficult detect due effects ground faults generation (DG) occurring lines. paper, we propose coordination algorithm uses negative-sequence component voltage occur when unbalanced occurs, rather determination directionality communication. To validate this, configured PSCAD/EMTDC (Manitoba Hydro International Ltd., Winnipeg, Manitoba, Canada), analysis program package verified results depending on type algorithm.
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ژورنال
عنوان ژورنال: Energies
سال: 2021
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en14164947