Next Article in Journal
Metamaterial Absorber Comprised of Butt-Facing U-Shaped Nanoengineered Gold Metasurface
Next Article in Special Issue
Artist Photovoltaic Modules
Previous Article in Journal
Thermo-Economic and Heat Transfer Optimization of Working-Fluid Mixtures in a Low-Temperature Organic Rankine Cycle System
Previous Article in Special Issue
High Stable, Transparent and Conductive ZnO/Ag/ZnO Nanofilm Electrodes on Rigid/Flexible Substrates
Article Menu

Export Article

Open AccessArticle
Energies 2016, 9(6), 450; doi:10.3390/en9060450

NMOS-Based Integrated Modular Bypass for Use in Solar Systems (NIMBUS): Intelligent Bypass for Reducing Partial Shading Power Loss in Solar Panel Applications

Centre for Microsystems Technology (CMST), ELIS Department, Ghent University - IMEC, Technologiepark 15, Ghent B-9032, Belgium
*
Author to whom correspondence should be addressed.
Academic Editor: Narottam Das
Received: 22 February 2016 / Revised: 2 June 2016 / Accepted: 3 June 2016 / Published: 11 June 2016
(This article belongs to the Special Issue Nano-Structured Solar Cells)
View Full-Text   |   Download PDF [6136 KB, uploaded 11 June 2016]   |  

Abstract

NMOS-based Integrated Modular Bypass for Use in Solar systems (NIMBUS) is designed as a replacement for the traditional bypass diode, used in common solar panels. Because of the series connection between the individual solar cells, the power output of a photovoltaic (PV) panel will drop disproportionally under partial shading. Currently, this is solved by dividing the PV panel into substrings, each with a diode bypass placed in parallel. This allows an alternative current path. However, the diodes still have a significant voltage drop (about 350 mV), and due to the fairly large currents in a panel, the diodes are dissipating power that we would rather see at the output of the panel. The NIMBUS chip, being a low-voltage-drop switch, aims to replace these diodes and, thus, reduce that power loss. NIMBUS is a smart bypass: a completely stand-alone system that detects the failing of one or more cells and activates when necessary. It is designed for a 100-mV voltage drop under a 5-A load current. When two or more NIMBUS chips are placed in parallel, an internal synchronization circuit ensures proper operation to provide for larger load currents. This paper will elaborate on the operation, design and implementation of the NIMBUS chip, as well as on the first measurements. View Full-Text
Keywords: photovoltaic power; power loss; partial shading; diode bypass; smart bypass photovoltaic power; power loss; partial shading; diode bypass; smart bypass
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Bauwens, P.; Doutreloigne, J. NMOS-Based Integrated Modular Bypass for Use in Solar Systems (NIMBUS): Intelligent Bypass for Reducing Partial Shading Power Loss in Solar Panel Applications. Energies 2016, 9, 450.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top