The converter can control which motors
The converter can be controlled General purpose motor This is used in situations where the accuracy of the torque speed is not high It has good energy saving and automatic control effect on the fan pump Vector control type inverter General motors can also be used to control frequency conversion motors Vector control characteristics have good control over torque load changes and speed above angular velocity A servo controlled converter And it's a lot more complicated to control the variable frequency special motor and to have better control and control over the vector
Inverter is actually a inverter. It is the first alternating current into direct current. Then use electronic components to switch dc. Into alternating current (ac). General power larger inverter with silicon controlled rectifier. And an adjustable frequency device. The frequency adjustable within a certain range. Used to control the motor revolution. Revolution in a certain range is adjustable. Inverter is widely used in ac motor speed control. Variable frequency speed regulation technology is important development direction of modern electric drive technology, with the development of power electronic technology, ac frequency conversion technology from theory to actual gradually to mature. The frequency converter is not only smooth, the scope is large, the efficiency is high, the start-up current is small, the operation is stable, and the energy saving effect is obvious. Therefore, ac frequency conversion speed regulation has gradually replaced the traditional slip control of motor speed, speed control, dc speed regulating pole change motor speed control system, such as more and more widely used in metallurgy, textile, printing and dyeing, air conditioning, machine production line and building, water supply, air conditioning and other fields
Frequency converter (Variable frequency Drive, VFDS) is the application of frequency conversion technology and microelectronic technology, by changing the way to control the motor power frequency ac motor power control equipment. Inverter is mainly composed of rectifier (ac to dc), filter, inverter (dc to ac), brake unit, drive unit, detection unit micro processing unit, etc. Internal IGBT inverter on the open circuit to adjust the output of the power supply voltage and frequency, based on the actual needs of the motor to provide the needed power supply voltage, thus achieve the goal of energy saving and speed, in addition, the protection of the inverter and there are many functions, such as over-current, over-voltage protection, overload protection, etc. With the increasing degree of industrial automation, the frequency converter has been widely used.
