Let say at 500 w/m2 the f=25 Hz, if suddenly the insolation level gets changed to 800 w/m2 how pump controller is going to change the frequency?
Dear Richa Parmar
These links might be resourceful, have a look:
1. https://www.micnodrive.com/some-knowledge-about-solar-water-pump-inverter.html
2. https://5.imimg.com/data5/OX/QU/MY-451251/solar-pump-controller.pdf
3. https://www.researchgate.net/publication/280522147_Performance_comparison_of_controllers_for_solar_PV_water_pumping_applications
4. https://www.gses.com.au/wp-content/uploads/2016/08/GSES_variable-speed-drive.pdf
Kind Regards
Qamar Ul Islam
Dear Richa:
At the first, let's remember the following: Solar pump controller is an electronic device that controls the circulating pump to harvest more heat as possible from the solar panels and it also protects the system for overheating. When there is heat available in the panels the controller turns the circulating pump and moves the working fluid through the panels to the heat exchanger at the thermal store.
Solar pump system uses the generated power from PV and converts it. The solar pump system includes photovoltaic panel, electronic device, and AC motor, whereas an electronic device is a combination of Inverter, MPPT, and VFD.
&& How Does the Solar pump controller Work??
Solar pump controller consists of an array of solar panels that are connected in series and parallel configuration to generate the power and voltage required. With the variable voltage and frequency, solar drive converts the DC voltage input to a 3-Phase AC output. In the sunlight, the MPPT algorithm of solar drive extracts maximum power and also operates the motor at a variable speed based on the power input to drive. The frequency range of drive operates depending upon the motor, speed, hydraulic system and the power available from the solar panel.
When the Sunshine varies during the day, the power input to the drive also varies and the solar drive generates variable ratio to control the speed of the motor.
&& Features of Solar Pump Controller:
1- Solar pump controller has no use of battery and starter, because it utilizes the energy from the sunlight making it extremely cost-effective.
2- It uses existing AC motors to work.
3- It’s a one-time investment and also works best during any time of the day.
4- It also has higher efficiency and higher life-cycle.
5- Solar pump controller is highly durable and reliable.
&&Benefits of Solar Pump Controller:
1- Solar pump controller is easily installed and it is used in the pumping of water for irrigation and for drinking water supply in off-grid areas.
2- With the help of them, the farmer can cultivate multiple crops in off-grid areas and they can also save their time spent in collecting and transporting water.
3- It has lower operation expenses compared to diesel pumps.
4- Solar Pump controller has zero emission of greenhouse gases.
5- It also helps to reduce the load on the national grid.
I have attached some documents about user manual of Solar water pump controller ...
I hope it will be helpful...
With my best regards ...
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