scholarly journals EMI Pre-Compliance Measurements Reveal Sources of Interference

2021 ◽  
Author(s):  
Bystrík Dolník
Keyword(s):  
Electromagnetic Compatibility ◽  
Electrical Equipment ◽  
Power Lines ◽  
Led Driver ◽  
Street Lighting ◽  
Conducted Emission ◽  
Two Factors ◽  
Current Content ◽  
Functional Blocks ◽  
Radiation Measurements

The chapter focuses on the electromagnetic compatibility of a prototype of electrical equipment such as street lighting with various LED controllers, LED information boards, and audio equipment. The requirements for the harmonic content of the input currents of the conducted emission power lines are used as a basis for the analysis of compliance with the EMC standards. The results obtained from the experiments indicated that some commercially produced voltage drivers are not compatible with the requirements for the harmonic current content of the input line. The problem is caused by two factors: a bad design by the manufacturer or the wrong LED driver design concerning the rated load. EMI radiation measurements indicate the need to precisely design all functional blocks placed on a PCB with suitable grounding and shielding techniques. This chapter is intended for engineers and researchers working in the development of electrical equipment as well as the general public interested in EMC issues.

Low frequency led driver based on the Ćuk converter applied to street lighting luminaires

2015 ◽  
Author(s):  
Fernando J. Nogueira ◽  
Thales S. Gomide ◽  
Edmar S. Silva ◽  
Mateus F. Braga ◽  
Henrique A. C. Braga
Keyword(s):  
Low Frequency ◽  
Led Driver ◽  
Street Lighting ◽  
Cuk Converter

scholarly journals Conducted emission mitigation in LED driver by chaotic modulation

2020 ◽  
Vol 732 ◽  
pp. 012099
Author(s):  
M Y Hariyawan ◽  
S N Posma
Keyword(s):  
Emission Mitigation ◽  
Led Driver ◽  
Conducted Emission ◽  
Chaotic Modulation

scholarly journals High-efficiency LED driver without electrolytic capacitor for street lighting

2012 ◽  
Author(s):  
Manuel Arias ◽  
Diego G. Lamar ◽  
Javier Sebastian ◽  
Didier Balocco ◽  
Almadidi Diallo
Keyword(s):  
High Efficiency ◽  
Electrolytic Capacitor ◽  
Led Driver ◽  
Street Lighting

scholarly journals Design and realization of LED Driver for solar street lighting applications

2011 ◽  
Vol 6 ◽  
pp. 160-165 ◽  
Author(s):  
M. Fathi ◽  
A. Chikouche ◽  
M. Abderrazak
Keyword(s):  
Led Driver ◽  
Street Lighting

scholarly journals Modeling the spatial distribution of magnetic fields of low frequency multiple sources

2021 ◽  
Vol 5 (2) ◽  
pp. 34-37
Author(s):  
Larysa Levchenko
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Compatibility ◽  
Three Dimensional ◽  
Low Frequency ◽  
Electrical Equipment ◽  
Technical Equipment ◽  
Multiple Sources ◽  
Matlab Package ◽  
Many Sources ◽  
The Magnetic Field

The work is show that in conditions of dense the location of electrical equipment in the premises, buildings and on territories to ensure the regulatory levels of electromagnetic compatibility of personnel and the population, it is advisable to carry out preliminary modeling of the propagation of electromagnetic fields it is advisable. Considering the insignificant shielding of the magnetic field by the equipment cases, it is advisable to carry out modeling based on the magnetic component of the electromagnetic field. The mathematical ratio of the propagation of the magnetic field of individual sources, taking into account their dipole model, has been determined. The modeling was carried out for sources of the dipole and dipole-quadrupole types. Three-dimensional models of sources with the propagation of dipole, quadrupole and dipole-quadrupole harmonics of the field are provided, using the Matlab package. Application software has been developed in the C environment, using the SQL server database, and modeling of the propagation of the magnetic field of many sources in a certain plane has been carried out. This result is show that even for electrical equipment that operates to determine the reduced magnetic field isolines experimentally very difficult. At the design stages of equipment placement, modeling is the only tool for predicting the electromagnetic environment, which determines the electromagnetic compatibility of technical equipment and the electromagnetic safety of personnel and the public.

Exploiting Power Line for Communication Purpose

2015 ◽  
pp. 320-334 ◽  
Author(s):  
Banty Tiru
Keyword(s):  
Channel Capacity ◽  
Communication System ◽  
Electromagnetic Compatibility ◽  
Data Transfer ◽  
Current Trend ◽  
Test Site ◽  
Power Line ◽  
Power Lines ◽  
Important Place ◽  
Simulation Techniques

Power Line Communication (PLC) uses the available power line as a communication medium. The purpose of this chapter is to present the salient features, current trend and future scope of PLC with emphasis in the Indian context. Unlike other channels available, power lines are harsh media for data transfer and require efficient modeling and simulation techniques to propose and implement suitable mitigation schemes for achieving acceptable performance. Designed equipments have to adhere to strict mandates at the national and international levels to account for issues related to electromagnetic compatibility (EMC). In spite of this, PLC is expected to occupy an important place in the networking market in applications of smart grid and as a component of heterogeneous/hybrid communication system. The chapter is also backed by results from experiments carried on a typical power line in a test site with a presentation of noise, transfer characteristics, modeling and an estimate of the channel capacity.

Off-line LED driver for street lighting with an optimized cascade structure

2012 ◽  
Author(s):  
D. Camponogara ◽  
G. F. Ferreira ◽  
A. Campos ◽  
M. A. Dalla Costa ◽  
J. Garcia
Keyword(s):  
Led Driver ◽  
Street Lighting ◽  
Cascade Structure

scholarly journals Automatic diagnostic of transmission lines based on ultraviolet inspection

2019 ◽  
Vol 140 ◽  
pp. 07008
Author(s):  
Phuong Nguyen ◽  
Sergey Dudkin ◽  
Chenzai Kong
Keyword(s):  
Neural Networks ◽  
Unmanned Aerial Vehicle ◽  
Transmission Lines ◽  
Power Plants ◽  
Electrical Equipment ◽  
Scientific Basis ◽  
Technical Condition ◽  
Power Lines ◽  
Actual Problem ◽  
Aerial Vehicle

Evaluation of the technical condition, reliability of the insulation of electrical equipment is an actual problem. It is confirmed by experience and statistics of operation at power plants and railway facilities. The combination of an unmanned aerial vehicle with UV-camera and software based on neural networks allows us to effectively diagnose long power lines. To increase the effectiveness of non-contact inspection of power lines, especially in hard-to-reach areas, more compact mobile solutions should be used which include an UV-camera and an unmanned aerial vehicle (UAV). The aircraft market currently has significant growth, that allows to bring the diagnostic experience to a new level by attaching an UV-camera to an aerial device, which will have a tremendous effect on examining long power lines. But we faced one problem related to the absence of any scientific basis for this method of examination, so it was decided to conduct experiments in a laboratory of St. Petersburg Polytechnic University. The results of experiments are presented in the work.

HPS Street Lighting Lamp Networking over Power-lines

2006 ◽  
Author(s):  
C. Wang ◽  
D.l Zhang ◽  
H.l. Qin ◽  
Y.y. Yao ◽  
Y. Sun ◽  
...  
Keyword(s):  
Power Lines ◽  
Street Lighting
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