NDLI: Control of a novel PV tracking system considering the shadow influence

Content Provider	IEEE Xplore Digital Library
Author	Mi-Geum Jang Jung-Sik Choi Jae-Sub Ko Ju-Hui Mun Dong-Hwa Chung
Copyright Year	2010
Description	Author affiliation: Department of Electrical Control Engineering, Sunchon National University, Suncheon, Korea (Mi-Geum Jang; Jung-Sik Choi; Jae-Sub Ko; Ju-Hui Mun; Dong-Hwa Chung)
Abstract	In this paper a novel tracking system is described, regarding the influence of shadow between arrays, aimed at improving the efficiency of PV tracking system. Comparing with a building site versus capacity power, domestic solar powers have a limited setting. Therefore, each array interferes with the shadow of other arrays. The loss by influence of those shadows can be compensated for by means of control algorithm of the tracking device. The paper suggests a method controlling an altitude for length which is received the shadow influence of PV array. By using an azimuth of current solar position and the length between arrays, the controller of tracking device is able to calculate the length between actual arrays and make a comparison of the shadow length at a specific time with the length between arrays. When the shadow length is longer than the length between arrays, the controller of tracking device can adjust a position by compensating error altitude of the length between arrays at an altitude of current solar position. In the paper, we develop the control algorithm able to minimize the loss caused by the influence of shadow on the PV tracking system, and compared this with conventional output system. The controller has been tested in the laboratory with proposed algorithm and shows excellent performance.
Starting Page	1229
Ending Page	1234
File Size	971515
Page Count	6
File Format	PDF
ISBN	9781424474530
e-ISBN	9788993215021
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-27
Publisher Place	Korea (South)
Access Restriction	Subscribed
Rights Holder	IEEE International Conference on Control & Automation
Subject Keyword	Photovoltaic systems Shadow influence Photovoltaic Tracking System Azimuth Efficiency Mathematical model Solar radiation Equations
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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