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Solar
Simulation System Electronics
EYE
Lighting / Iwasaki Electric designs and manufactures lighting electronics
along with the lighting source
(lamp) for our solar simulation equipment. This integrated approach
is unique in the marketplace. Any solar simulation system is only as good
as the lighting system. Our solar simulation products are designed from inception around the
proper lighting system to ensure
outstanding, yet efficient, spectral performance, irradiation uniformity,
and time stability.
Time
stability for continuously powered lighting sources can only be achieved
by the use of properly designed electronics. EYE Lighting / Iwasaki has
developed a complete family of electronic inverter ballast
systems to provide the best price / performance solutions for your solar
simulation needs. In
addition to outstanding stability, many of our systems offer additional
features such as controllable power output and programmable
"pattern" illumination.
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Example of EYE Lighting / Iwasaki proprietary
multi-lamp electronic inverter power system.
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This portable array
system utilizes the EYE Lighting / Iwasaki Class C 400W solar lamp.
The inverter power system provides control of the irradiation
intensity from 80% to 110% of nominal power. Additionally, each lamp
can be turned on/off independently to produce a custom pattern.
Using a combination of these features, the radiation intensity of
this system can be adjusted from 400W/m2 to 1100W/m2.
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When
designing high output HID arc tube lighting systems, it is critical
that the power ballast is designed specific to the application and
lighting source. Many continuous lighting systems use standard core and coil or inexpensive electronic
ballast components that introduce sine wave or square wave cycling
into the lamp arc. For commercial lighting, this is not an
issue as the human eye does not perceive this illumination
fluctuation. The performance of solid state devices (PV cells),
however, can be adversely affected by this cycling which may than prevent repeatable data
acquisition results.
For quality
results, your solar simulation application needs
stable consistent
lighting!
Please contact us; we can provide it. |
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Display of power output from EYE
Lighting / Iwasaki electronic inverter ballast.
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Temporal
Stability Lighting Demonstration
The following
video clips graphically illustrate the difference between a stable
HID lighting system and one powered by a standard core and coil
sine-wave ballast. Although the human eye does not respond to the
inherent cycling of standard HID lighting, electronic systems do.
This is why temporal stability in solar simulation testing is
critical.
A high speed digital video camera was
used to record the light system performance. This film was shot at a
recent exhibition and was not done in a laboratory under any special
conditions. The first video was shot using a proprietary EYE
Lighting / Iwasaki 150W lamp and electronic ballast system. To
demonstrate the high speed frame rate of the camera, we video taped
a cigarette package being dropped. The slight "flicker"
was caused by the background ambient lighting, easily seen in the
second video.
We then turned the camera up toward
the ceiling of the exhibition hall, which was illuminated using a
standard HID metal halide lamp and ballast system. The HID arc tube
illumination cycling is dramatic. Let us help ensure your PV module
performance.
High
speed video taken using a proprietary EYE / Iwasaki
lamp
and
electronic inverter ballast system. |
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High
speed video taken looking at a standard HID
metal halide lamp
and ballast system. |
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EYE Lighting International of North America. All Rights Reserved.
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