session 06 pv systems – part 2 solar modules september 8, 2015
DESCRIPTION
Learning Outcomes Review of types of solar cells Review of construction and manufacturing of solar modules Introduction to module science and technology Consideration of module performance, reliability, lifetime, and decommissioning 3TRANSCRIPT
Session 06
PV Systems – Part 2
Solar Modules
September 8, 2015
Session 06 Components
• PV System ComponentsoSolar cells – material considerationsoSolar modules – operation and manufacture
2
Learning Outcomes
• Review of types of solar cells• Review of construction and
manufacturing of solar modules• Introduction to module science and
technology• Consideration of module performance,
reliability, lifetime, and decommissioning
3
PV Systems: Definition
• A photovoltaic system (or PV system) is an engineered system that carries out these operations:o Absorption of incident solar radiationo Conversion of the absorbed solar energy to DC electrical energyo Controlled transfer of the DC electrical energy to a storage device
(such as an array of batteries) OR
o Controlled inversion of the DC electrical energy to AC electrical energy
o Controlled transfer of the electrical energy to electrical loads or to the electrical grid
PV Systems: Standard solar cell structure
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
PV Systems: Standard solar cell structure
Maximum efficiency, with common PV materials
PV Systems: Solar Cell Types
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
PV Systems: Solar cell fabrication
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
PV Systems: Solar cell fabrication
Trina – Polycrystalline Silicon (poly-Si)https://www.youtube.com/watch?v=HPlpDXgc5T4
9
PV Systems: Solar cell fabrication
Suntech - Cell and Module Manufacturing:https://www.youtube.com/watch?v=IAufbqbUS6k
10
PV Systems: Amorphous-Si solar cell structure
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
PV Systems: CdTe solar cell structure
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
CdS
PV Systems: CIGS solar cell structure
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
CIGS
PV Systems: CIGS solar cell structure
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
PV Systems: Multi-Junction solar cell structure
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
PV Systems: Multi-Junction solar cell concept
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
PV Systems: Cell efficiencies
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
PV Systems: poly-Si vs a-Si
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems
PV Systems: Cell material and structures
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems, Chapter 2(On reserve, Noble Library)
PV Systems: Solar cell I vs V
There is a relation between the current and the voltage of a solar cell:
Increasinglight
PV Systems: Need for the solar module
To increase the electrical power, solar cells are combined together (physically and electrically) into solar modules
6.5A, 0.6V, 4W 6.5A, 45V, 300W
PV Systems: Solar module I vs V
The relation between the current and the voltage of a solar module resemblesthat of the single solar cell:
Increasing light
60 solar cell module
PV Systems: Solar module construction
Solar cell electrical wiring
Edge view of module
PV Systems: Solar module construction
Suntech - Cell and Module Manufacturing:https://www.youtube.com/watch?v=IAufbqbUS6k
24
PV Systems: Solar module construction
Bosch – Solar Module Manufacturing:https://www.youtube.com/watch?v=CiYfcZJmBNE
25
PV Systems: Solar module operation
Deutsche Gesellschaft für Sonnenenergie, Planning and Installing PV Systems