NDLI: Effective fault diagnosis and distance calculation for photovoltaic-based DC microgrid using adaptive EWT and kernel random vector functional link network

Content Provider	IET Digital Library
Author	Naik, Jyotirmayee Dhar, Snehamoy Dash, Pradipta Kishore
Abstract	Photovoltaic (PV) based DC microgrids are being introduced prominently in the recent energy market, especially towards local uninterrupted power supply. These low voltage DC distribution networks are facing implementation challenges due to the protection (monitoring and coordination) standards’ limitation; especially under multi-distributed generations operation subjected to DC cable faults as well PV side arc events. Thus, a new DC fault diagnosis (DCFD) model is proposed here to monitor the fault events with accurately estimated distance, and to provide relay coordination podium. A new adaptive empirical wavelet transform (AEWT) based signal decomposition is incorporated to this model, where accurate fault detection is obtained in terms of sensitivity index (maximum weighted kurtosis index/ M-WKCI) of different intrinsic mode functions towards less computational classification. The accuracy is ensured by an improved firefly algorithm to avoid false detection, sympathetic tripping, erroneous distance estimation etc. The fast, robust decision making is proposed by non-iterative Kernelised Random Vector Functional Link Network, where higher dimensional mapping is obtained to cope with noise profile volatility of DC faults by Gaussian Kernel function. The effectiveness of the proposed DCFD model-based classification and distance estimation is established through rigorous case studies in MATLAB environment.
Starting Page	690
Ending Page	703
Page Count	14
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 4, Feb (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1338
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-11-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Accurate Fault Detection Accurately Estimated Distance Adaptive Empirical Wavelet Algebra Arc Events DC Cable Fault DC Fault DC Fault Diagnosis Model Decision Making Different Intrinsic Mode Function Distance Calculation Distributed Power Generation Energy Market Erroneous Distance Estimation Fault Diagnosis Fault Events Gaussian Kernel Function Gaussian Processes Implementation Challenges Integral Transforms Kernel Random Vector Functional Link Network Local Uninterrupted Power Supply Low Voltage DC Distribution Network Multidistributed Generation Operation Photovoltaic Power System Photovoltaic-based DC Microgrid Power Converter Power Generation Fault Power Supplies to Apparatus PV Based DC Microgrid Relay Coordination Podium Sensitivity Index Signal Detection Solar Power Stations Statistics Uninterruptible Power Supplies Vector Wavelet Transform
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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