Selection by parameters

PV Hybrid Power (AC/DC-Solar)

Found 46 products
Yes ×
Скинути фільтри
B2B Сервіс
Рахунок з ПДВ за 15 хв

Скидайте перелік моделей у Viber або Telegram — наш інженер підготує специфікацію та рахунок.

Solar Variable Frequency Drives for Pumps — Hybrid AC/DC Power

A Solar VFD is a specialized frequency converter that powers pump motors directly from photovoltaic panels (DC input) or from the electrical grid (AC input). The built-in MPPT (Maximum Power Point Tracking) algorithm automatically finds the sensible operating point of solar panels to extract maximum energy throughout the day.

The chastotnik.ua VFD catalog features two solar pump inverter series: Veichi SI23 (1.5–200 kW) and Schneider Electric Altivar 320 Solar (0.37–15 kW). Both support dual power: PV panels + grid with automatic switchover.

How to Choose a Solar VFD

ModelPowerCurrent, ASupplyApplication
ATV320U07N4C4120.75 kW2.33×380VResidential water supply
SI23-D5-004G-A4 kW103×380VIrrigation, drip systems
ATV320U55N4C4125.5 kW14.33×380VFarm water supply
SI23-D5-015G-A15 kW323×380VIndustrial irrigation
SI23-D5-030G-A30 kW603×380VAgricultural complexes

Solar VFD Manufacturers

Full comparison — in our complete solar pump VFD guide.

Solar VFDs by Specifications

Warranty & Support

24-month manufacturer warranty. Delivery across Ukraine. Free technical consultation for PV array and pump system sizing.

Solar Hybrid VFDs for Pumps: when we ship one instead of a regular inverter

A solar hybrid VFD is not a regular inverter with a battery, it is a frequency drive with a DC input for solar panels and a built-in MPPT. The pump motor runs directly from the PV array; when sunlight drops, the drive switches over to 220 V or 380 V mains by itself. This year we mainly ship two lines for solar pumping: Veichi SI23 (from 1.5 to 200 kW, agricultural irrigation) and Schneider Altivar 320 Solar (up to 15 kW, drinking water supply). Typical customer for us: a farmer with 10-20 ha of fields, a pond with drip irrigation, or water draw from an artesian well on a farm.

Before the order we ask three things. Well depth and pump power (that sets the VFD rating). PV array already installed or planned (we recommend 1.3-1.5× the VFD rating). Whether grid backup is needed at night. We keep popular Veichi SI23 4-22 kW ratings in stock, delivery across Ukraine 1-3 days, 24-month warranty.

What we ship for typical scenarios

Borehole pump for drip irrigation, 5-15 ha

We ship Veichi SI23 at 4-7.5 kW with Grundfos SQF or Pedrollo 4SR pumps and a 5.5-11 kW PV array. The MPPT algorithm holds peak pump output through variable cloud cover, with no batteries. On our 2024-2025 sites, these systems pay back in 2-3 seasons against a diesel generator.

Drinking water supply with grid backup

Schneider Altivar 320 Solar up to 15 kW, with certified STO for critical systems. We ship this where guaranteed water delivery is required: a farm, a hotel, a workshop. Solar/grid switching is automatic, no emergency stops.

How to count the panels

Simple rule: PV array must be 1.3-1.5× the rated VFD power. A 4 kW inverter: 5.2-6 kW array, roughly 12-14 panels at 450 W each. Exact count depends on regional irradiance (southern Ukraine outputs more than Polissia) and panel tilt. We work this through with the customer before the order.

Frequently Asked Questions

What is a solar pump VFD?

A specialised variable frequency drive with DC input for direct connection to solar panels and a built-in MPPT algorithm. It powers pump motors directly from PV panels or from the grid (hybrid AC/DC mode), switching automatically between sources.

Do I need batteries for a solar pump?

No. The Veichi SI23 and Schneider Altivar 320 Solar series we ship operate in direct drive mode: solar energy converts straight into motor rotation. No batteries are needed, which significantly cuts system cost and maintenance.

How many solar panels do I need for a pump?

Recommended PV array capacity is 1.3-1.5× the VFD rated power. For example, a 4 kW inverter needs a 5.2-6 kW array (12-14 panels at 450 W each). The exact count depends on irradiance, our team works this through with the customer.

Does a solar pump work in cloudy weather and at night?

In cloudy weather the pump runs at reduced output: the MPPT algorithm pulls maximum from available irradiance. At night, both series switch to grid power automatically (hybrid mode).

What's the difference between Veichi SI23 and Schneider Altivar 320 Solar?

Veichi SI23: up to 200 kW, built-in PLC, IoT monitoring via GPRS or WiFi. We ship this for large agricultural projects. Schneider Altivar 320 Solar: up to 15 kW, certified STO/SLS/SS1 safety, Modbus and CANopen. We ship this for drinking water supply or sites with elevated safety requirements.