NDLI: Use of PSO to determine lightning channel-base-current function parameters for standard severe negative first and subsequent return stroke approximation

Content Provider	IET Digital Library
Author	Ramarao, Gandi Chandrasekaran, Kandasamy
Abstract	In this study, particle swarm optimisation (PSO) is applied to determine the Heidler's function parameters (HFPs) for approximating the measured full lightning channel-base-current (CBC) of the severe (5% data in IEC standard 62305-1, 2010) negative first return stroke (NFS) and subsequent return stroke (NSS). The parameters in the sum of two Heidler's functions, namely I 01, I 02, τ 11, τ 12, τ 21, τ 22, n 1, and n 2, are identified using PSO as a tool. The HFPs for severe NFS and NSS are tuned to keep four parameters constant with systematic variation of one out of all prominent parameters (i.e. peak current (I m), maximum time rate of change of current ((di/dt)max), front duration (t FD), stroke duration (t SD), and total charge (Q)) of full CBC wave and vice versa. The corresponding data is reported, and an independent controlling of HFPs is analysed to achieve the desired full CBC wave. Also, an attempt has been made in this study to examine the interdependence between the wavefront and tail of CBC using PSO. The data thus generated and reported for severe NFS and NSS can be used to generate the suitable full CBC waveforms. This methodology will be helpful in lightning-related simulation study and research.
Starting Page	42
Ending Page	52
Page Count	11
ISSN	17518822
Volume Number	13
e-ISSN	17518830
Issue Number	Issue 1, Jan (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-smt/13/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2018.5320
Journal	IET Science, Measurement & Technology
Publisher Date	2018-08-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Approximation Theory Full CBC Wave Heidler Function Parameter HFP IEC Standard 62305-1 IEC Standards Interpolation And Function Approximation Lightning Channel-base-current Function Parameter Lightning Protection Lightning-related Simulation Study NFS NSS Numerical Analysis Optimisation Technique Particle Swarm Optimisation Power System Protection PSO Standard Severe Negative First Return Stroke Approximation Subsequent Return Stroke Approximation
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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