The essence of Off-Grid Low-Frequency Inverter

The essence of Off-Grid Low-Frequency Inverter is an inverter. The first is to change the AC power to DC power. Then use electronic components to switch the Off-Grid Low-Frequency Inverter DC power. Turn it into AC power. Generally, the Off-Grid Low-Frequency Inverter uses a more powerful thyristor. And set up an adjustable Frequency Off-Grid Low-Frequency Inverter device. The frequency can be adjusted within a certain range. It is used to control the number of revolutions of the motor. The Off-Grid Low-Frequency Inverter can be adjusted within a certain range.

Here is the content list:

Component

Rectifier circuit

Smoothing circuit

Control circuit

Inverter circuit

Component

Off-Grid Low-Frequency Inverter is widely used in the speed regulation of AC motors. Frequency conversion speed regulation technology is an important development direction of modern power transmission technology. With the development of Off-Grid Low-Frequency Inverter power electronics technology, AC frequency conversion technology has changed from Theory to practice gradually matures. Off-Grid Low-Frequency Inverter not only has smooth speed regulation, large range, high efficiency, low starting current, stable operation, and obvious energy-saving effect. Therefore, Off-Grid Low-Frequency Inverter AC variable frequency speed regulation has gradually replaced the traditional speed regulation systems such as slip speed regulation, pole-changing speed regulation, and Off-Grid Low-Frequency Inverter DC speed regulation. Off-Grid Low-Frequency Inverter is more and more widely used in metallurgy, textile, printing and dyeing, air-conditioning, hood production line and buildings, water supply, and other fields. Generally divided into several parts such as Off-Grid Low-Frequency Inverter, such as rectifier circuit, smoothing circuit, control circuit, and inverter circuit.

Rectifier circuit

The function of the Off-Grid Low-Frequency Inverter rectifier circuit is to convert AC power into DC power. Off-Grid Low-Frequency Inverter rectifier circuit is generally a single rectifier module.

Smoothing circuit

The smoothing circuit includes the 6 times the frequency pulsating voltage of the power supply in the Off-Grid Low-Frequency Inverter rectifier and the rectified DC voltage. In addition, the pulsating current generated by the Off-Grid Low-Frequency Inverter also causes the DC voltage to fluctuate, to suppress the Off-Grid Low-Frequency Inverter uses inductors and capacitors to absorb the pulsating voltage (current) for voltage fluctuations. Generally, the DC part of the general-purpose Off-Grid Low-Frequency Inverter inverter power supply has a margin for the main circuit, so the Off-Grid Low-Frequency Inverter saves money. A simple capacitor filter smoothing circuit is used to remove the inductance.

Control circuit

Now the Off-Grid Low-Frequency Inverter frequency converter uses 16-bit, 32-bit single-chip microcomputer or DSP as the control core to realize full digital control.

Off-Grid Low-Frequency Inverter is a speed regulating device with adjustable output voltage and frequency. The circuit that Off-Grid Low-Frequency Inverter provides control signals is called the main control circuit. The control circuit consists of the following circuits: frequency and voltage "calculation circuit", main circuit "voltage and current detection circuit", Off-Grid Low- Frequency Inverter motor "speed detection circuit". The control signal of the Off-Grid Low-Frequency Inverter arithmetic circuit is sent to the "drive circuit" and the "protection circuit of the inverter and motor"

The control method adopted by Off-Grid Low-Frequency Inverter inverter, namely speed control, rotation control, PID, or other methods

Inverter circuit

The Off-Grid Low-Frequency Inverter inverter circuit is the opposite of the rectifier circuit. The Off-Grid Low-Frequency Inverter inverter circuit converts the DC voltage to the AC voltage of the desired frequency and uses the time of the determined Off-Grid Low-Frequency Inverter. The power switching devices of the upper bridge and the lower bridge are turned on and off. Off-Grid Low-Frequency Inverter can obtain three-phase AC voltages with a phase difference of 120° electrical angles at the output terminals U, V, and W.

If you have any questions about the inverter of the off-grid low-frequency inverter, please contact SHENZHEN SUNRAY POWER CO., LTD. We are very enthusiastic to guide you.