Power line carrier communication power supply module, power line carrier communication cable and magnetic levitation motor system

Abstract

The invention provides a power line carrier communication power supply module, a power line carrier communication cable and a magnetic levitation motor system. The power line carrier communication power supply module comprises a first power line terminal, a power supply module, a coupling circuit, a modulation-demodulation circuit, a second power line terminal and a communication terminal, the first power line terminal and the second power line terminal are electrically connected with the power supply module; the power supply module supplies power to the coupling circuit and the modulation-demodulation circuit, the first end of the coupling circuit is electrically connected with the first power line terminal, the second end of the coupling circuit is electrically connected with the first end of the modulation-demodulation circuit, and the second end of the modulation-demodulation circuit is electrically connected with the communication terminal. The power line carrier communication power supply module is applied to the power line carrier communication cable. The magnetic levitation motor system applies the power line carrier communication power supply module, and the power line carrier communication power supply module can simplify the line layout and improve the communication reliability.

Description

technical field [0001] The present invention relates to the field of power supply technology, in particular, to a power carrier communication power module, a power carrier communication cable using the power carrier communication power module, and a magnetic levitation motor system using the power carrier communication power module. Background technique [0002] Magnetic levitation support technology is widely used in artificial satellites, missiles, submarines, combat vehicles and other military and other special fields because of its advantages of high speed, high precision and high reliability in extreme environments. [0003] The magnetic levitation motor system mainly includes high-speed motors, magnetic levitation bearings, rotors, magnetic levitation controllers, frequency converters and various sensors. Traditional communication methods such as 232 communication circuit, 485 communication circuit, and CAN bus communication circuit are used between the magnetic levita...

AI Technical Summary

Problems solved by technology

Traditional communication methods such as 232 communication circuit, 485 communication circuit, and CAN bus communication circuit are used between the magnetic levitation controller, frequency converter and various sensors, while the structure of the magnetic levitation centrifugal chiller is complex and the parts of the unit are relatively scattered. It will lead to problems such as complicated wiring of communication lines and high cost

On the other hand, the above-mentioned traditional communication methods are easily affected by factors such as strong electromagnetic interference and harsh environments, and the reliability of communication is reduced, resulting in a decrease in the controllability and safety of the magnetic levitation motor system, which is likely to cause irreversible damage

Images