Presentation Details
| Performance evaluation of a PV Soiling Sensor using light filters as artificial soiling Ajay Singh, Derek Jones, Kris Payne, Troy Forbush, Zach Smith. Campbell Scientific Inc, Logan, UT, USA |
Abstract
A novel compact PV soiling sensor based on comparison of two reference pv devices is presented. One device is kept clean by keeping it under a cover and the other device is soiled at the natural rate. The cover is actuated electronically a few times a day if the irradiance measured from the soiled cells meets certain conditions. In this presentation data from an artificial soiling experiment are presented. The artificial soiling conditions were created by using light filters under artificial light. A Class A pyranometer and reference cell were used as comparison references. Excellent agreement between the reference devices and the soiling sensor is observed. The artificial soiling effect was obtained using wavelength-selective optical filters. Colored plastic sheet filters were applied sequentially under high-intensity white LED illumination (approximately 500 W/m² at the measurement plane) to generate controlled attenuation spanning near-zero to severe transmission loss. The data was ranked by increasing losses to emulate progressively increasing soiling severity. The novel PV soiling sensor, DustVue™10 results are in strong agreement with measurements from the reference devices.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.
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