Laboratory Stand “Photovoltaic Training Bench”

1. Product Overview

1.1 Overview The training system can simulate the process of solar power generation, providing students with an intuitive understanding of the solar power system. The solar panels are driven by high-intensity LED lights. Through relevant experiments, students’ knowledge and skills are cultivated, making this suitable for teaching and skills training assessments at higher vocational colleges, higher vocational schools, secondary vocational schools, and technical schools.

1.2 Features

1. The training platform adopts an aluminum profile column frame structure with built-in integrated installation for measuring instruments and training power supply. The platform is equipped with universal wheels at the bottom, making it flexible, easy to use, and durable.
2. The experimental circuit and device are fully equipped and can be combined to complete the training content of various courses.
3. The training platform has a good security protection system.

2. Performance parameters

1. Solar power generation device: All aluminum alloy structure, adjustable angle of the photovoltaic panel, adjustable analog light source in the vertical direction by 120 degrees. External dimensions: 1230×753×1250 mm (length, width, height).
2. Training power box frame: Aluminum frame structure, aluminum alloy box unit. Dimensions: 1100×300×750 mm (length, width, height).
3. Single solar panel parameters:
   • Rated peak power: 30W
   • Short circuit current: 1.9A
   • Maximum current: 1.71A
   • Maximum voltage: 17.6V
   • Short circuit current: 1.87A
   • Open circuit voltage: 21.6V
4. Battery technical parameters:
   • Voltage: 12V
   • Capacity: 7AH
   • Battery loss: 10V ± 1V
   • Executive standard: GB/T 9535
   • Relative humidity: 35~85% RH (no condensation)
5. Working environment:
   • Temperature: -10 ~ +40°C
   • Temperature: ≤80°C
   • Ambient air: non-corrosive, non-flammable, no large amounts of conductive dust
6. Power supply:
   • Power consumption: ≤5000W
   • Working power supply: AC220±10%
   • Power supply: single-phase three-wire AC220±10%, 50Hz
   • Working method: continuous
7. Overall weight: <500 Kg

3. Product composition The training platform unit includes a power box, a solar controller hanging box, an inverter hanging box, a load hanging box, two measuring instrument hanging boxes, and a transformer module.

3.1 Training frame The training platform adopts an aluminum profile column frame structure with built-in integrated installation for measuring instruments and training power supply. It is equipped with universal wheels at the bottom, making it flexible, easy to use, and durable.

3.2 Power box

1. Power circuit breaker
2. Emergency stop button unit
3. Battery unit
4. DC measuring instrument unit
5. Analog light source switch
6. Photovoltaic panel power unit
7. European socket

3.3 Companion devices

1. Controller hanging box (1 unit)
2. Inverter hanging box (Note: The input voltage must not exceed DC 24V) (1 unit)
3. Lamp load box (1 unit)
4. Instruments hanging boxes (4 units)
5. Transformer hanging box (1 unit)
6. Compass (1 unit)
7. Solar power meter (1 set)
8. Solar height measurer (1 unit)
9. Installation tool (1 set)
10. Communication line and software CD (1 set)
11. Accessories and wiring (1 set)

4. Training content

1. Battery characteristics experiment:
   • Measurement of electrical parameters
   • Series and parallel connection of batteries
2. Charge controller experiment:
   • Reverse protection experiment
   • Controller overcharge protection experiment of battery
   • Controller over-discharge protection experiment of battery
   • Anti-back charge experiment
3. Measurement experiment of power generation
4. Photovoltaic panel power measurement experiment
5. Maximum power measurement experiment of photovoltaic panels under different illumination
6. Photovoltaic panel output characteristics experiment
7. Photovoltaic panel charging control principle experiment
8. Inverter basic principle experiment
9. Simple inverter output waveform test experiment
10. Inverter power supply driving AC load test