There are 4sub units in the system which can be classified as power generating unit with artificial radiation source, main measurement unit, logger-plotter unit and inverter and controller unit.
Power generating unit consists of two modules which are fixed on a small structure. This structure allows the user to change tilt angle (of modules) with the help of gear box. There are two halogen light fixtures attached with this structure which provides the artificial radiation for PV modules. Radiation level of this unit can be changed with the help of regulator and on-off action also can be done with the help of switch box (2 switches).
Main measurement unit and inverter-controller box are connected to each other through connectors at the back. In this way, ports of charge controller and inverter will become active for different circuit connections. Modules output will be connected with main controller unit through back connectors and will enable the module 1 and 2 ports on the front panel of measuring unit for different connections of modules.
Data logger plotter unit will be connected by module ports and log the data in PC for storage and plotting.
After making these connections and settings, different experiments can be performed by making various connections of different components according to experiment.
|Power generating unit||Solar PV Module|
|Number of modules||2|
|Total Power rating||80Wp|
|Artificial Source of radiation||Halogen Light with regulator|
|Total power rating||1800W|
|Power Conditioning Unit (PCU)||DC-DC Converter- Auto/Manual mode|
|Power rating||25 W|
|Nominal system voltage||12V|
|Maximum Load Current||2.0 (A)|
|Inverter- Auto/Manual mode|
|Control and Measuring Unit||Meters|
|Temperature meter with sensor|
|Battery bank (2 batteries)|
|Capacity of each battery||4.5 Ah/12V|
|Data Logger and Plotter||Voltage Range||0-200 (V)|
|Current Range||0-2.0 (A)|
|Range||0 to 1999 (W/m2)|
|Output voltage||12 (V)|
|Module Cooling system|