福建进口变频器原理

交流变频

The working principle of AC variable frequency is that variable frequency technology changes the speed of the compressor by changing the frequency of the power supply. The frequency converter first converts AC to DC and then converts DC back to AC.

变频器通讯原理

The communication principle of the frequency converter is that the frequency converter communicates with the upper control system or external devices through built-in communication modules (such as RS485, Modbus, Profibus, etc.). When receiving control signals, the internal control circuit of the frequency converter will parse the instructions and adjust the drive.

变频器和整流器原理及作用

1. What is a frequency converter? A frequency converter is a control device that converts power supply frequency into another frequency using the switching action of power semiconductor devices. 2. What is the difference between PWM and PAM? PWM stands for Pulse Width Modulation.

变频器内接触吸合原理

The principle of contact closure inside the frequency converter applies variable frequency technology and microelectronics technology to control the AC motor through changing the power supply frequency. The frequency converter is mainly composed of rectification (AC to DC), filtering, etc.

变频器工作原理

The main working principle of the frequency converter is to convert AC power to DC, then convert DC back to AC. These two processes, rectification of AC to DC is called rectification, and DC to AC is called inversion, supported by stabilizing, filtering, and detection circuits.

变频器调速原理

The basic principle of frequency conversion speed regulation technology is to change the motor speed by changing the frequency of the working power supply proportionally to the motor speed and the input frequency. By changing the height of rectangular pulses, the motor speed is controlled.

二极管变频工作原理

The working principle of diode frequency conversion is to provide variable voltage and frequency power supply for asynchronous motors. The main circuit of the frequency converter can be roughly divided into two categories: voltage type converts direct current from the voltage source into AC, and the direct current loop filter.

通用变频器原理

A frequency converter (Variable-frequency Drive, VFD) is a power control device for controlling AC motors by changing the frequency of the motor\'s power supply. The main circuit provides power to asynchronous motors.

风力发电机变频器

The wind turbine is equipped with 3 blades to absorb wind energy, driving the main shaft (low-speed shaft) to rotate. The gear mechanism converts the low-speed rotation into high-speed rotation, driving the high-speed shaft.

变频器阻抗原理

A frequency converter is a device used to control the speed of a motor, and its impedance principle controls the speed of the motor by changing the frequency and amplitude of the power supply voltage. The frequency converter converts the AC input power supply to DC, and then converts the DC back to AC.