frequency converter的意思|示意

Frequency converters, a type of electronic control device commonly used in industry, are used to modify the input frequency to a lower or higher frequency. They are typically used to control the speed of three-phase motors as well as other types of rotating machinery and industrial equipment.

Frequency converters are typically used in conjunction with a motor drive and also known as AC drives. In an AC drive, the frequency converter will convert the AC supply voltage from either a single-phase or three-phase supply to a varying frequency and magnitude. This enables the motor speed to be varied by changing the frequencies of the supply voltage.

The frequency converter can be used to change the speed of a motor either manually or via a programmable digital control system. This can be done by changing the width of the pulses produced by the frequency converter, and the frequency of the AC supply voltage. The frequency of the supply voltage can be controlled by changing the resistance, capacitance or inductance of the input voltage.

Frequency converters are particularly useful in applications where the speed of a motor needs to be varied. Some applications include industrial pumps, conveyor belts, elevators, cranes, mixers and other mechanical equipment. They can also be used to reduce the electric bill for an industrial plant as the frequency converter allows for the speed of the motor to be adjusted based on the electrical loads.

In summary, frequency converters are a type of electronic control device used to modify the input frequency to higher or lower frequency in order to control the speed of a motor. It can be used to reduce the electrical bill or to vary the speed of a motor based on the electrical loads. Frequency converters can be used in many industrial applications such as pumps, conveyor belts, elevators, cranes, mixers and other mechanical equipment.