Optical characterization and durability of immersion cooling liquids for high concentration III-V photovoltaic systems

2018 ◽  
Vol 174 ◽  
pp. 124-131 ◽  
Author(s):  
Xinyue Han ◽  
Yongjie Guo ◽  
Qian Wang ◽  
Patrick Phelan
Keyword(s):  
Optical Characterization ◽  
Photovoltaic Systems ◽  
High Concentration ◽  
Immersion Cooling

Performance of the Southern Nevada Water Authority of Amonix’s High Concentration Multi-Junction System

2011 ◽  
Author(s):  
Gary Wood ◽  
Aaron Sahm ◽  
Rick Hurt ◽  
Robert Boehm ◽  
Kenneth W. Stone
Keyword(s):  
Initial Period ◽  
Photovoltaic Systems ◽  
Data Sets ◽  
Power Performance ◽  
High Concentration ◽  
Performance Levels ◽  
Southern Nevada ◽  
System Power ◽  
Southern Nevada Water Authority

The Southern Nevada Water Authority contracted with Amonix, Inc. in 2008 to procure 220 kWdc of their latest generation multi-junction cell High Concentration Photovoltaic systems (HCPV). This paper discusses the performance of the six HCPV systems that started operating in mid 2009. Data sets included show: a. Daily power performance; b. Power performance compared to the specified performance; c. Effect of field shading upon the daily power performance. What is demonstrated is the system power performance has not degraded during this initial period of operation and continues to meet or exceed the specified performance levels.

Water immersion cooling of PV cells in a high concentration system

2011 ◽  
Vol 95 (2) ◽  
pp. 538-545 ◽  
Author(s):  
Li Zhu ◽  
Robert F Boehm ◽  
Yiping Wang ◽  
Christopher Halford ◽  
Yong Sun
Keyword(s):  
Water Immersion ◽  
High Concentration ◽  
Immersion Cooling

scholarly journals Knowledge-Based Sensors for Controlling A High-Concentration Photovoltaic Tracker

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1315 ◽  
Author(s):  
Joaquin Canada-Bago ◽  
Jose-Angel Fernandez-Prieto ◽  
Manuel-Angel Gadeo-Martos ◽  
Pedro Perez-Higueras
Keyword(s):  
Computer Architecture ◽  
Fuzzy Rule ◽  
Electrical Energy ◽  
Electrical Current ◽  
Photovoltaic System ◽  
Photovoltaic Systems ◽  
High Concentration ◽  
The Real ◽  
Knowledge Based ◽  
High Degree

To reduce the cost of generated electrical energy, high-concentration photovoltaic systems have been proposed to reduce the amount of semiconductor material needed by concentrating sunlight using lenses and mirrors. Due to the concentration of energy, the use of tracker or pointing systems is necessary in order to obtain the desired amount of electrical energy. However, a high degree of inaccuracy and imprecision is observed in the real installation of concentration photovoltaic systems. The main objective of this work is to design a knowledge-based controller for a high-concentration photovoltaic system (HCPV) tracker. The methodology proposed consists of using fuzzy rule-based systems (FRBS) and to implement the controller in a real system by means of Internet of Things (IoT) technologies. FRBS have demonstrated correct adaptation to problems having a high degree of inaccuracy and uncertainty, and IoT technology allows use of constrained resource devices, cloud computer architecture, and a platform to store and monitor the data obtained. As a result, two knowledge-based controllers are presented in this paper: the first based on a pointing device and the second based on the measure of the electrical current generated, which showed the best performance in the experiments carried out. New factors that increase imprecision and uncertainty in HCPV solar tracker installations are presented in the experiments carried out in the real installation.

Developing a Parallel Kinematic Solar Tracker for HCPV

2012 ◽  
Author(s):  
Alessandro Battezzato ◽  
Stefano Mauro ◽  
Cristina Scarzella
Keyword(s):  
Control Algorithm ◽  
Photovoltaic Systems ◽  
Functional Tests ◽  
High Concentration ◽  
Delta Type ◽  
Solar Tracker ◽  
Parallel Kinematic

The paper describes a new kind of solar tracker intended to satisfy the precision requirements of high concentration photovoltaic systems. The tracker is designed according to a Delta type parallel kinematic schematics. The paper describes the kinematic schematics, the sensor chain and the control algorithm. Finally results obtained in functional tests are shown.

scholarly journals Low-Cost High-Concentration Photovoltaic Systems for Utility Power Generation

2012 ◽  
Author(s):  
R. McConnell ◽  
V. Garboushian ◽  
R. Gordon ◽  
D. Dutra ◽  
G. Kinsey ◽  
...  
Keyword(s):  
Power Generation ◽  
Low Cost ◽  
Photovoltaic Systems ◽  
High Concentration

High concentration photovoltaic systems applying III–V cells

2009 ◽  
Vol 13 (9) ◽  
pp. 2645-2652 ◽  
Author(s):  
Ghassan Zubi ◽  
José L. Bernal-Agustín ◽  
Gian Vincenzo Fracastoro
Keyword(s):  
Photovoltaic Systems ◽  
High Concentration
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