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Mathematical Problems in Engineering
Volume 2015 (2015), Article ID 127949, 7 pages
Research Article

Improving the Output Power Stability of a High Concentration Photovoltaic System with Supercapacitors: A Preliminary Evaluation

Department of Electronic Engineering, National Quemoy University, Kinmen 892, Taiwan

Received 7 September 2014; Accepted 12 December 2014

Academic Editor: Mo Li

Copyright © 2015 Yu-Pei Huang and Peng-Fei Tsai. 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.


The output power of a high concentration photovoltaic (HCPV) system is very sensitive to fluctuating tracking errors and weather patterns. To help compensate this shortcoming, supercapacitors have been successfully incorporated into photovoltaic systems to improve their output power stability. This study examined the output power stability improvement of an HCPV module with a supercapacitor integrated into its circuit. Furthermore, the equivalent model of the experimental circuit is presented and analyzed. Experimental results suggest that integrating a supercapacitor into an HCPV module could improve its output power stability and further extend its acceptance angle. This paper provides preliminary data of the improvement and its evaluation method, which could be utilized for further improvements to an HCPV system.