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PV Test Equipment
Features
Introduction
Manufacturers will use solar simulators to measure the efficiency of solar cells on production lines, as well as in laboratory. Nowadays, all sun simulators are designed with xenon or halogen lamps which increase costs due to the high power consumption and depreciation rate. King Design Industrial CO., LTD (KDI) and Industrial Technology Research Institute of Taiwan, R.O.C (ITRI) co-developed the solar simulator based on Light Emitting Diode (LED), which takes another step forward, conforming to IEC 60904-9. With its state-of-the-art technology, there are two features that you will notice straightaway from this innovative product.
AAA+ Class
KDI LED simulator (KD-SS01-1616) could provide up to 36 in2 illumination area adhere to meeting the AAA requirements in three categories based on the criteria of spectral distribution match, non-uniformity of illumination area, and temporal stability.We will provide the 64 in2 system during the next phase in the future.
Spectral Distribution Match
The reference spectral distribution of sunlight at Air Mass 1.5 Global is laid down in IEC 60904-3. Spectral match of a solar simulator is defined by the deviation from 400-1100nm reference spectral irradiance into six spectral ranges. For Class A of solar simulator, the ratio of percentage distribution of intervals is from 0.75 to 1.25, as specified in Figure 1.
| Wavelength | Relative Energy Distribution | Coincidence | Class | |
|---|---|---|---|---|
| IEC 60904-9 | KD-SS01-1616 | |||
| 400-500nm | 18.40% | 18.41% | 1.00 | A+ |
| 500-600nm | 19.90% | 20.43% | 1.03 | A+ |
| 600-700nm | 18.40% | 18.74% | 1.02 | A+ |
| 700-800nm | 14.90% | 15.48% | 1.04 | A+ |
| 800-900nm | 12.50% | 12.85% | 1.03 | A+ |
| 900-1100nm | 15.90% | 14.09% | 0.89 | A+ |
Fig.2: The 36 in2 illumination area, Class A requires non-uniformity less than 2%; KD-SS01-1616 uniformity variations are less than 1%.
Temporal Stability
Electronic control assures that the lamp fluctuation does not exceed 0.2% during the solar cell measurement to meet the IEC 60904-9 A class requirement.
Fig.3: KD-SS01-1616 output variation over the time period of 300 seconds, our system stability can reach 99.8%, excluding lamp fluctuations to distort the solar cell measurement.
Compact, and Long Life-Time
The KD-SS01-1616 system, included LED light source, power supply, and optical compartment, are housed in a 320x580x520mm3 box. Its compact design is easy to operate, and install, which can be used in lab-testing, as well as, particularly, be mounted on an automation production line for inspection and measurement of a solar cell. The KD-SS01-1616 can illuminate steadily for more than 20000 hours surpassing other lamp systems of the simulator on the market, whilst only consuming 1/3 of the electrical power. “Users will see the benefit, significantly reducing R&D, Quality Assurance and Production costs, once they decide to choose LED simulator.” says KDI
Specifications
| System Specifications | ||
|---|---|---|
| Lamp Type | Light-Emitting Diode (LED) | |
| Illumination Area | 160mm x 160mm | |
| Output Type | Steady State | |
| Lifetime | 20000 Hrs | |
| Lamp Power | 300W | |
| Irradiance | 200-1100W/m2 | |
| Spectral Distribution Match | IEC 60904-9, A Class | |
| Non-uniformity of Illumination | < 1% | |
| Temporal Stability | LTI < 1%； | |
| STI < 0.5%; | ||
| Input Power | 90~240VAC/5A, 50/60 Hz | |
| Cooling System | Air Ventilation | |
| Optional Accessories | 1. IV Tracer | |
| 2. Stage : | a. Stand Alone | |
| b. Inline | ||
Light Source Unit:
