Application Of VFD In Solar water pump

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APPLICATION OF VFD

Fully Automatic Solar water pump

The application of frequency converter in solar water pump ‌ is mainly reflected in its key role and advantages. As an important component of the solar water pump system, the main function of the frequency converter is to convert the direct current output by the photovoltaic panel into alternating current and drive the operation of the water pump. It ADJUSTS the output frequency and voltage in real time according to the intensity of sunlight to ensure the pump CAN work smoothly in all weather conditions ‌1.
The role of frequency converters in solar water pump systems
Youdaoplaceholder0 Voltage and frequency regulation ‌ : The frequency converter can adjust the output frequency and voltage in real time according to the change of sunlight intensity to ensure the stable operation of the water pump under unstable light conditions ‌12.
Youdaoplaceholder0 Soft start and protection function ‌ : The frequency converter is equipped with a soft start function, which can smoothly start the water pump and avoid voltage shock during startup, thereby extending the service life of the water pump and motor ‌12. In addition, IT also HAS MULTIPLE protection FUNCTIONS SUCH as overvoltage, undervoltage, overcurrent, overHEAT, to ensure the SYSTEM safe and stable operation ‌2.
Youdaoplaceholder0 MPPT tracking technology ‌ : The inverter is equipped with an MPPT module to track the maximum power point of photovoltaic power generation in real time, improving the utilization rate of power generation ‌12.
Youdaoplaceholder0 Energy conservation and efficiency improvement ‌ : By adjusting the rotational speed of the water pump, the frequency converter can flexibly regulate the flow rate to meet the demands under different working conditions, thereby achieving energy conservation and efficiency improvement ‌23.
Specific application scenarios of frequency converters in solar water pump systems
Youdaoplaceholder0 Agricultural irrigation ‌ : In areas without electricity or with an unstable power grid, pumping water during the day using solar energy for irrigation is both green and cost-effective ‌4. Youdaoplaceholder0 Pastoral water supply ‌ : For livestock drinking water systems to provide water throughout the day ‌4.
Youdaoplaceholder0 Aquaculture ‌ : Used in oxygenation pumps, circulating water pumps, etc., to reduce operating costs ‌4. Youdaoplaceholder0 Domestic water supply ‌ : Suitable for small-scale centralized water supply systems in rural areas ‌4. Youdaoplaceholder0 Other applications ‌ : such as grassland livestock water supply, desert greening, reservoir water lifting, village domestic water supply, etc. Youdaoplaceholder2 14. Technical parameters and performance indicators of frequency converters Youdaoplaceholder0 Wide voltage input range ‌ : Can adapt to photovoltaic arrays of different specifications and operate stably even in poor lighting conditions ‌2. Youdaoplaceholder0 MPPT tracking technology ‌ : Real-time tracking of the maximum power point of photovoltaic power generation to improve power generation utilization ‌12. Youdaoplaceholder0 Soft start and protection function ‌ : avoids voltage surge during startup and extends device life; Built-in MULTIPLE protection functions to ensure SYSTEM SAFE and stable operation ‌2. Youdaoplaceholder0 Remote monitoring function ‌ : Some high-end frequency converters also support remote monitoring, allowing users to view the system operation status in real time and perform remote control ‌2.

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vfd inThe Fully Automatic Solar water pump

Composition and Working Principle of Solar water pump

The fully automatic Solar water pump consists of a frame, a microcomputer controller, a straightening frame with straightening rollers, an electric motor, a length control sensor, a steel bar automatic cutting mechanism, and an automatic unloading mechanism. It operates by inputting the quantity of steel bars to be cut into the microcomputer controller. Based on the set cutting length of the steel bars, the position of the length control sensor on the unloading chute plate is determined. The electric motor drives the straightening frame, which contains the straightening rollers, to rotate at high speed. The rotating straightening rollers press and straighten the twisted steel bars into a spiral shape, continuously pulling and stretching them forward to achieve straightening.

Connected to the power unit is an eccentric mechanism, which is linked to a slider that moves up and down. The slider cooperates with a slide plate, and together they form a swing arm. Inside the swing arm, which is at the same height as the steel bars, there is a lower cutting blade. The lower cutting blade has a hole through which the steel bar passes. The lower end of the swing arm is hinged at the bottom of the frame. The upper part of the cutting blade is fixed to the lower part of the slider, and it protrudes from the slider and moves along the end face of the cutting blade. When the straightened steel bar reaches the set length, it contacts the length control sensor, which triggers the automatic cutting control circuit in the microcomputer controller. This activates the electromagnetic solenoid to operate the automatic cutting mechanism and the automatic unloading mechanism, enabling synchronous automatic cutting and unloading of the steel bars.

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Advantages After Using VFDs In Straightening Machine

Reducing equipment startup current stabilizes the grid voltage and significantly alleviates power capacity constraints.

Traditional steel bar straightening machines without frequency converters have startup currents equal to (4-7) times the rated current. This can cause serious impact on electromechanical equipment and the power grid, and also leads to excessive requirements on grid capacity. Lcgk variable frequency drive provides eight protection functions such as motor phase detection at startup, input and output phase loss protection, overcurrent protection, overvoltage protection, undervoltage protection, overheat protection, and overload protection to protect the motor. Therefore, operating the straightening machine with frequency converter extends the service life of the motor and switch, avoids the impact of startup current and torque on the motor, prolongs the service life of the motor, and alleviates power capacity constraints.

Smooth startup reduces mechanical impact and extends equipment service life.

The soft start function of The LCGK frequency converter enables the startup current to start from zero, with minimal impact, rising only with increasing speed, and never exceeding the rated current. This reduces the impact on the mechanical parts, extends the service life of the steel bar straightening machine, and reduces maintenance costs.

Reduced noise improves production efficiency.

After switching to a LCGK VFD, the steel bar straightening machine starts smoothly, avoiding the noise caused by direct contactor startup and mechanical impact. Additionally, using a Lcgk frequency converter allows the motor to operate at 70Hz, increasing conveying speed and improving production efficiency.

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