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Feedback-Based Temperature and Irradiation Estimation for Photovoltaic Systems

[+] Author Affiliations
Donald J. Docimo, Mohammad Ghanaatpishe, Abdullah-Al Mamun

The Pennsylvania State University, University Park, PA

Paper No. DSCC2015-9801, pp. V002T23A005; 9 pages
  • ASME 2015 Dynamic Systems and Control Conference
  • Volume 2: Diagnostics and Detection; Drilling; Dynamics and Control of Wind Energy Systems; Energy Harvesting; Estimation and Identification; Flexible and Smart Structure Control; Fuels Cells/Energy Storage; Human Robot Interaction; HVAC Building Energy Management; Industrial Applications; Intelligent Transportation Systems; Manufacturing; Mechatronics; Modelling and Validation; Motion and Vibration Control Applications
  • Columbus, Ohio, USA, October 28–30, 2015
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 978-0-7918-5725-0
  • Copyright © 2015 by ASME


This paper develops two algorithms for estimating photovoltaic (PV) module temperature and effective irradiation level. The efficiency of PV systems depends on the module temperature, and both temperature and irradiation determine the power output of the system. Estimating these two quantities allows for improved state-based control methods while eliminating the need of additional sensors. Thermal models and irradiation estimators have been developed in the literature, but none incorporate feedback for estimation. This paper outlines two feedback-based observers for temperature and irradiation, each with a different irradiation model, and validates the proposed observer techniques through simulation.

Copyright © 2015 by ASME



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