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CPV Module, Concentrator Photovoltaic System

Solar concentrating photovoltaic technology (CPV) is a way to effectively reduce the cost of photovoltaic power generation. It combines optical technology with new energy sources to increase the power generation of photovoltaic cells

1.Introduction to the principle of high magnification

Solar concentrating photovoltaic technology (CPV) is a way to effectively reduce the cost of photovoltaic power generation. It combines optical technology with new energy sources to increase the power generation of photovoltaic cells, while improving efficiency, using optical components such as lenses or mirrors. The large area of ​​sunlight is concentrated to a very small area, and then directly converted into electric energy by a high conversion efficiency photovoltaic cell.

High-concentration photovoltaic is a technology that uses optical concentrating equipment to concentrate more than 500 times of sunlight onto the surface of solar cells for power generation by using concentrating technology; the same light-receiving area, the higher the concentrating multiple, the required battery The smaller the area, the lower the battery cost and the smaller the system footprint. The basic principle of the period is shown in Figure 1.

2.safety precautions

he component produces a voltage of more than 30V under sunlight. It is dangerous to touch a DC voltage above 30V. Electrical connections such as terminals can cause sparks, burning, and fatal electric shocks. Do not touch the terminals directly, regardless of whether the components are connected or not.

 

When the component is exposed to sunlight and the lens plane is not completely aligned with the sun, the spot that has been focused by the lens will form a high temperature spot through the substrate glass to burn the body or ignite other flammable materials. Avoid sun shining the lens surface of the component when the component is not accurately tracking the sun.

 

he upper and lower surfaces of the components are tempered glass, which will be broken when the corners are impacted by external forces. Components should be protected from external impact during storage and handling

3.The main technical parameters of cpv module

Outline structure

Technical parameters

Component model

RMNG220

Receiving half angle

0.5 degrees (within 5% power reduction)

Types

 

Types

ower attenuation ratio (25 years)

8%

Light receiving area

0.48mm²

Protection rating

IP67

Concentration

750Times

Anti-ice ability to withstand

Anti-ice ability to withstand 25 mm diameter hail at a speed of 22 meters per second

Size

866*630*136.4mm

Insulation strength

1000V DC

Weight

15Kg

Heat dissipation method

 Passive cooling

Test Conditions

CSOC

CSTC

DNI=900W/m2

DNI=1000W/m2

AM=1.5D

AM=1.5D

Temp=20℃

 

2m/s Wind speed is less than

0m/s Wind speed

Maximum output power

120W

145W

Operating current at maximum power point (Vm)

4.9A

5.6A

Operating voltage at maximum power point (Im)

24.5V

26V

Open circuit voltage (Voc)

27V

28V

Short circuit current (Isc)

5A

6.2A

Power error

±5%

Conversion efficiency

27.8%

30.2%

 

Figure 2 Static test PV curve

4.product packaging

The 750x module is packaged in carton and packed in 4 modules per case. The module is separated by pearl cotton to avoid friction loss between the modules. The module is protected by pearl cotton and paperboard to ensure that the product is not damaged during handling. The specific packaging structure is shown in Figure 3.

750 times module packaging structure

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