Photovoltaic concentrator using a holographic optical element.

Area of Science:

• Renewable Energy
• Optical Engineering
• Photovoltaics

Background:

• Traditional solar concentrators require complex and costly 2-D tracking systems.
• Minimizing the sun's altitude angle variation is key to improving efficiency.

Purpose of the Study:

• To propose and analyze a novel photovoltaic concentrator design utilizing equatorial tracking.
• To evaluate the feasibility of simplified 1-D tracking for solar concentration.

Main Methods:

• Theoretical analysis of a photovoltaic concentrator system.
• Development and study of a physical model.
• Incorporation of a Fresnel lens, holographic optical element, and field lens.

Main Results:

• Achieved a reasonable solar concentration ratio with the proposed design.
• Demonstrated that equatorial tracking minimizes the sun's altitude angle changes.
• Indicated potential for significantly reduced system complexity and cost.

Conclusions:

• The proposed equatorial tracking photovoltaic concentrator offers a cost-effective alternative to 2-D tracking systems.
• Simplified 1-D tracking may be sufficient for effective solar energy concentration.
• Further development could lead to more affordable and efficient solar energy solutions.