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The CSIVEI 11kw Solar Pump Inverter with MPPT is designed for heavy industrial solar pumping. Featuring high overload capacity (150% for 60 seconds), it handles deep-well pumps with high starting torque. The drive includes dual MPPT trackers, a built-in DC reactor for harmonic reduction, and optional AFE (Active Front End) for grid-tie solar systems. The IP21 enclosure with redundant fans ensures continuous operation in high ambient temperatures (up to 50°C). Applications include large-scale irrigation, mining dewatering, and municipal water supply. CSIVEI provides full remote monitoring via cloud platform. Energy savings up to 80% compared to diesel pumps.
| MODEL | 11kw Solar Pump Inverter with MPPT |
| Input voltage | AC,1PH,220V(-15%)~240V(+10%) |
| AC,3PH,380V(-15%)~440V(+10%) | |
| Rated frequency | 50/60Hz |
| Frequency range | ±5%（47.5~63Hz） |
| Output Voltage | 0-Output Voltage |
| Output Frequency | 0.1~500Hz |
| Highest frequency | Vector control：0~500Hz |
| V/F control：0~500HZ | |
| Carrier frequency | 0.8KHz~8KHz |
| The carrier frequency can be automatically adjusted according to the load characteristics | |
| Input frequency resolution | Digital setting：0.01Hz |
| Simulation setting：Maximum frequency x 0.025% | |
| Control Method | SVC Open-loop vector control |
| V/F Open-loop speed control | |
| Starting torque | 0.5Hz/150%(SVC) |
| Speed range | 1:100(SVC) |
| Speed stability accuracy | ±0.5%(SVC) |
| Overload capacity | 150%Rated current：60s，170%Rated current：12s，190%Rated current：1.5s |
| Torque Increase | Automatic Torque Boost；Manual torque boost: 0.1%~30.0% |
| V/F curve | Three methods：1.Linear；2.Multifocal；3.Power-type V/F curve |
| V/F separation | 2 methods：Fully separated；Semi-detached |
| Acceleration and Deceleration Curve | Linear or S-curve acceleration and deceleration methods. Two types of acceleration and deceleration times, with a time range of 0.0~6500.0s |
| DC braking | DC braking frequency：0.00Hz~Maximum frequency |
| Braking time：0.0s~36.0s | |
| Brake operation current value：0.0%~100.0% | |
| Jog control | Jog frequency range: 0.00Hz to maximum frequency. Jog acceleration and deceleration time: 0.0s to 6500.0s |
| Built-in PID | It can conveniently achieve a process control closed-loop control system |
| AVR | When the grid voltage changes, it can automatically maintain a constant output voltage. |
| Torque Limiting and Control | “Excavator” features automatically limit torque during operation to prevent frequent overcurrent trips |
This solar pump drive is ideal for agricultural irrigation including drip irrigation, sprinkler systems, and flood irrigation. It efficiently powers submersible pumps in deep wells or surface pumps in open channels. By directly converting solar DC power to AC, it eliminates the need for batteries or grid connection. The drive automatically adjusts pump speed according to solar intensity, ensuring maximum water delivery during sunny hours. Common installations: farmland irrigation, greenhouse watering, orchard drip systems, and livestock watering troughs. Its dry-run protection prevents pump damage when water sources run low, making it highly reliable for remote rural areas.
This solar pump drive integrates intelligent Maximum Power Point Tracking (MPPT) algorithms to extract the highest possible power from photovoltaic arrays. Unlike PWM controllers, MPPT continuously adjusts input impedance to match the solar panel’s maximum power point, even under varying irradiance, temperature, and shading conditions. Key features:
● Tracking efficiency >99% – ensures minimal energy loss between solar panels and pump motor.
● Wide DC input range – accommodates different string configurations and panel aging.
● Fast response to cloud passing – avoids power dips that could stall the pump.
● Automatic start/stop based on solar power – the drive starts when available power exceeds
● Pump threshold and stops when insufficient, protecting the motor from repeated low-power attempts.
This MPPT technology maximizes daily water output, making the 11kw Solar Pump Inverter with MPPT suitable for off-grid applications where every watt counts.
Q1: What type of pumps can I use with this solar VFD?
A: This drive is compatible with most three-phase AC submersible pumps, centrifugal surface pumps, deep-well pumps, and booster pumps. It supports both standard induction motors and permanent magnet synchronous motors (PMSM). For single-phase pumps, please refer to our single-phase solar pump drive series.
Q2: Can I run the pump directly from solar panels without batteries?
A: Yes. The CSIVEI 11kw Solar Pump Inverter with MPPT is designed for direct solar‑to‑pump operation. It uses MPPT to convert variable DC from panels into stable AC for the pump. The drive automatically starts when solar power exceeds the pump’s threshold and stops when insufficient, protecting the motor.
Q3: What is the maximum DC input voltage?
A: The maximum DC input voltage for this drive is 800V and 1000V for higher power units. Please refer to the specification sheet for exact values. Always ensure your solar array open-circuit voltage stays within the drive’s rating.
Q4: Do I need a separate pump controller or soft starter?
A: No. The CSIVEI solar VFD integrates all control functions: MPPT, variable frequency drive, pump protection (dry‑run, overload, pipe burst), and optional PID for constant pressure. It replaces both pump controllers and soft starters.
Q5: Can I use this drive with an existing grid-connected pump?
A: Yes. The drive supports hybrid operation: solar priority with grid backup, or grid only. You can retrofit it to an existing pump to add solar capability without replacing the motor.
A family-owned vegetable farm in a remote area relied on a diesel pump for irrigation, facing high fuel costs and frequent maintenance. They installed a CSIVEI solar pump VFD with a 11kw Solar Pump Inverter with MPPT array driving a submersible pump.
Fuel costs eliminated, saving over $2,500 annually.
Automated start/stop based on sunlight reduces labor.
Drip irrigation uniformity improved, increasing tomato yield by 20%.
System paid back in 14 months.
The farmer now irrigates 5 acres daily without grid connection or fuel logistics.
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No. 3788, Liujiang Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, China
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If you have any enquiry about quotation or cooperation, please feel free to email us at sanchia@csivei.com or use the following inquiry form.Our sales representative will contact you within 24 hours. Thank you for your interest in our products.
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