NDLI: Placement of protective devices in distribution system considering uncertainties in loads, temporary and permanent failure rates and repair rates

Content Provider	IET Digital Library
Author	Alam, Afroz Alam, Mahamad Nabab Pant, Vinay Das, Biswarup
Abstract	Distribution system reliability is directly affected by the placement of various types of protective devices at different locations of the distribution system. To reduce the momentary interruptions, fuse-blow scheme is used which in turn increases sustained interruption. Utilities having more concern to the sustained interruptions prefer to use fuse-save scheme over fuse-blow scheme. Different models have been developed to solve the problems incorporating placement of various combinations of protective devices in a distribution network for increasing the profit of the utility. The uncertainties in temporary failure rates, permanent failure rates, repair rates and load data have been considered in the problem formulation using three-point estimate method. A generalised objective function capable of simulating different combinations of the protective devices has also been developed. The formulated problems have been solved for 58 bus and IEEE 123 bus distribution networks using mixed integer non-linear programming optimisation technique. After analysing the test results of the various scenarios for the two test systems, it is concluded that maximum profit for the utility is obtained by using the scenario corresponding to a combination of the four protective devices, namely reclosers, switches, fuse-blow fuses and fuse-save fuses.
Starting Page	1474
Ending Page	1485
Page Count	12
ISSN	17518687
Volume Number	12
e-ISSN	17518695
Issue Number	Issue 7, Apr (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/12/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.0075
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-09-27
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Circuit Breaker Distribution Network Distribution System Electric Fuses Fuse-blow Fuses Fuse-blow Scheme Fuse-save Fuses Fuse-save Scheme Generalised Objective Function Integer Programming Linear Programming Load Data Load Uncertainties Mixed Integer Nonlinear Programming Optimisation Technique Momentary Interruptions Reduction Optimisation Technique Permanent Failure Rates Power Distribution Protection Protection Apparatus Protective Device Placement Reclosers Repair Rates Sustained Interruption Switch Switched Mode Converter Temporary Failure Rates Temporary Failure Rates Uncertainties Three-point Estimate Method
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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