Solar Water Pump Inverter for Irrigation Systems
A solar water pump inverter converts PV power into variable-frequency motor output for irrigation pumps. It helps farmers run water supply from solar energy while protecting the pump from overload, dry running and unstable sunlight conditions.
Recommended Configuration
| Item | Reference Selection |
|---|---|
| Pump | Irrigation centrifugal or submersible pump |
| Motor | Three-phase AC pump motor |
| Input | PV array, optional AC backup |
| Control | MPPT solar pump control |
| Protection | Dry-run, overload and low-radiation protection |
| VFD | AUSENIST solar pump inverter selected by motor current |
What Must Be Confirmed?
- Pump motor voltage, current and frequency.
- Required daily water volume and irrigation time.
- Pump head, flow and pipe distance.
- PV panel voltage range and total power.
- Whether AC backup power is required.
Selection Logic
The inverter must match both the motor and PV array. PV voltage should stay within the inverter MPPT range, and panel power should be enough for the pump load. For deep wells, also check cable length and dry-run protection method.
Common Mistakes
- Matching PV power without checking voltage range.
- Selecting by pump kW only.
- Ignoring seasonal sunlight changes.
- Forgetting water level protection for wells.
AUSENIST Solution
AUSENIST can help match the solar pump inverter, PV voltage window and pump operating range. For mixed solar and grid systems, the backup power mode should be confirmed before production.
FAQ
Can a solar pump inverter run without batteries?
Yes. Most irrigation systems run directly from PV panels during daylight.
Can grid power be used as backup?
Yes, if the selected inverter supports AC backup input.
What information is needed for sizing?
Send motor nameplate, pump curve, well depth or head, required flow and PV panel data.
Related AUSENIST Pages
Send AUSENIST your pump and PV panel data. We can help size the solar pump inverter.
Quanzhou Ausenist Technology Co., Ltd