The applications of INVT inverter solar pumps are vast. In agriculture, they are widely used for irrigation of crops, orchards, and greenhouses, efficiently delivering water from wells, rivers, reservoirs, or canals. In remote and rural areas, they provide essential drinking water for villages and communities, replacing manual water hauling or unreliable diesel pumping. In livestock and poultry farming, they ensure a constant supply of water for animals. Moreover, these pumps are used in landscape water features, fountains, and small-scale industrial water circulation systems. For areas with no access to the power grid, the solar pump is often the most viable and cost-effective solution for water delivery. Its modular design allows for system expansion as water demand grows.
The system installation chapter provides step-by-step guidance, beginning with the mechanical mounting of the inverter enclosure, which must be installed in a well-ventilated, shaded location to ensure adequate cooling. The manual includes a clear diagram of the recommended clearances around the unit and specifies the use of appropriate wall brackets. Electrical wiring instructions are presented for both the DC input side and the AC motor output side. The manual specifies the permissible PV array open-circuit voltage and the maximum power point voltage range, with examples illustrating how to configure panels in series and parallel to match the inverter’s limits. For the motor side, it explains how to connect the U, V, and W terminals and emphasizes checking the motor’s phase insulation and rotation direction before full operation. A crucial warning tells the installer to verify that the capacitor rating of a single-phase motor is removed or the motor is of a three-phase type, as JFY inverters output three-phase PWM.
The inverter supports both three-phase and single-phase output, depending on the pump type. It is equipped with a hybrid input option, allowing connection to a diesel generator or utility power as a backup source. This dual-power capability ensures water pumping continues during prolonged cloudy periods or at night. The built-in power conversion unit automatically prioritizes solar energy, switching to backup only when solar input is insufficien
Implementation steps typically begin with simulation and prototyping. The user first writes the MPPT and SPWM code in the Arduino IDE. For initial testing, a low-voltage DC motor or a small resistive load can be used to verify the switching patterns. Next, the power stage is assembled on a PCB or a perfboard, with careful attention to grounding and heat dissipation. The boost converter and inverter inductors must be designed for the expected current ripple. A breadboard is not recommended for power circuits due to parasitic inductance and poor current handling.
The connection between the inverter and the pump is made through shielded cable to minimize electromagnetic interference. In borehole applications, the pump is typically a submersible three-phase induction motor, while surface pumps may be self-priming centrifugal types. To optimize energy consumption, the pump should be selected with a best-efficiency-point (BEP) that aligns with the typical solar irradiance profile. Oversized pumps waste energy, while undersized pumps fail to meet peak demand. Sunflow’s technical support team generally assists in hydraulic modeling to ensure proper matchin
After the bus voltage is stabilized, the inverter stage converts DC to AC. For a three-phase pump, a three-phase inverter bridge comprising six switching devices is used. The Arduino generates sinusoidal PWM (SPWM) signals with a controlled frequency, typically around 50 Hz or 60 Hz, to drive the gate drivers. To vary the pump speed and flow rate, the output frequency can be adjusted via variable frequency drive (VFD) principles. Additionally, the voltage-to-frequency (V/f) ratio is maintained constant to keep motor flux constant and avoid overheating. The Arduino computes the duty cycles for If you’re ready to check out more info in regards to newpro solar inverter look at our own page. each phase based on a sine lookup table and updates them at a high switching frequency (e.g., 8–16 kHz) to produce a smooth AC waveform after filtering by the motor’s inductance.
One of the most significant price determinants is the inverter’s power rating, usually expressed in kilowatts (kW) or horsepower (HP) for pump applications. A small inverter suitable for a 0.5 HP submersible pump might cost between 8,000 and 15,000 baht, while a 2 HP system could command prices from 20,000 to 35,000 baht. For large agricultural operations requiring 10 HP or more, prices can exceed 100,000 baht. It is important to note that the price often includes not only the inverter itself but also the associated control logic, display, and sometimes the mounting hardware. However, solar panels, batteries (if used), and the pump itself are usually sold separately, so buyers must consider the total system cost, not just the inverter price.
The manual begins with a clear introduction to the product, explaining that the JFY solar pumping inverter is an intelligent power conversion device that transforms direct current (DC) from solar photovoltaic (PV) panels into three-phase alternating current (AC) to drive standard induction or permanent magnet motors for water pumps. It emphasizes that the system is engineered for remote, off-grid water supply solutions such as irrigation, livestock watering, and rural residential water supply. Key advantages outlined include energy savings, low maintenance due to minimal battery requirements, and a priority logic that maximizes water output based on real-time solar radiation.