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Experiments to be performed, Solar On-Grid PV system Testing Kit - Coggle…
Experiments to be performed
Voltage & Current measurement (PV & INV)
Voltage
current
Power & Energy measurement (PV & INV)
Requirement
A power analyzer
procedure
Connect the power analyzer to the output of the solar PV system.
Connect the current clamp to the output of the solar PV system.
Connect the voltage meter to the output of the solar PV system.
(Optional) Connect the data logger to the power analyzer.
Turn on the solar PV system and record the power and voltage readings.
(Optional) Start the data logger to record the power and voltage readings over time.
Efficiency (%) = (Output power / Input power) * 100
Energy (Wh) = Power (W) * Time (h)
A current clamp
A voltage meter
Frequency & Phase sequence
A digital multimeter
Procedure
Connect the multimeter to the AC output of the solar on-grid PV system.
Select the AC voltage measurement function on the multimeter.
Measure the voltage across each phase of the system.
The frequency of the system can be calculated using the following formula:
Frequency = (60 * Revolutions per minute) / (Number of poles)
A three-phase AC power analyzer
Inverter Efficiency Testing
requirement
A load resistor
Procedure
Connect the solar PV module to the inverter.
Connect the load resistor to the output of the inverter.
Connect the power analyzer to the input and output of the inverter.
Connect the voltmeter and ammeter to the output of the inverter.
Turn on the solar PV module and the inverter.
Record the voltage, current, and power readings at the input and output of the inverter.
Calculate the inverter efficiency using the following formula:
Inverter efficiency = (Output power / Input power) * 100%
A power analyzer
A voltmeter
An ammeter
Inverter Thermal response testing
Require
A solar PV system testing kit
A temperature probe
A data logger
Inverter performance at different Temperature conditioins
Performance Efficiency testing (Specific & Peak)
specific performance efficiency test
Requirement
A solar power analyzer
Connect the solar power analyzer to the AC output terminals of the system.
Connect the pyranometer and thermometer to the solar power analyzer.
Position the pyranometer in a location where it will receive direct sunlight.
Turn on the system and record the AC power output, irradiance, and temperature readings.
Calculate the specific performance efficiency using the formula above.
Specific performance efficiency = (AC power output / DC power input) * 100%
A pyranometer to measure irradiance
A thermometer to measure temperature
peak performance efficiency test
Requirement
A solar power analyzer
Connect the solar power analyzer to the AC output terminals of the system.
Connect the variable load to the AC output terminals of the solar power analyzer.
Connect the pyranometer and thermometer to the solar power analyzer.
Position the pyranometer in a location where it will receive direct sunlight.
Turn on the system and increase the load until the system reaches its peak power output.
Record the AC power output, irradiance, and temperature readings.
Calculate the peak performance efficiency using the formula above.
Peak performance efficiency = (Peak AC power output / Peak DC power input) * 100%
A variable load to test the system at different power levels
A pyranometer to measure irradiance
A thermometer to measure temperature
Solar On-Grid PV system
Testing Kit
