Power supply device of magnetic suspension system, magnetic suspension system and power supply control method of magnetic suspension system

Abstract

The invention discloses a power supply device of a magnetic suspension system, the magnetic suspension system and a power supply control method thereof. The power supply device comprises a first power supply module which is configured to carry out the first conversion of direct current provided by a frequency converter or an external power supply to obtain a first power supply, the first power supply used for supplying power to a bearing controller, a second power supply module configured to perform second conversion on the direct current provided by the frequency converter or the external power supply to obtain a second power supply, and the second power supply used for supplying power to the bearing controller. According to the scheme, the power supply reliability of the magnetic bearing controller is ensured, so that the working reliability of the magnetic bearing controller is improved.

Description

technical field [0001] The invention belongs to the technical field of magnetic levitation, and in particular relates to a power supply device of a magnetic levitation system, a magnetic levitation system and a power supply control method thereof, in particular to a power supply device of a magnetic levitation system, a control method and a magnetic levitation system. Background technique [0002] In the magnetic levitation system, the magnetic levitation bearing is a new type of high-performance bearing. Compared with the ball bearing, there is no mechanical contact, so the magnetic levitation compressor rotor can reach a very high operating speed. The most critical part of the magnetic levitation bearing system is the magnetic bearing. controller. In order to prevent the bearing controller from malfunctioning due to power failure when the magnetic levitation compressor is running at high speed, which will cause the rotor to drop and be damaged, it is necessary to provide a...

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Problems solved by technology

[0004] The object of the present invention is to provide a power supply device for a magnetic levitation system, a magnetic levitation system and a power supply control method thereof, so as to solve the problem that the power supply reliability of the magnetic bearing controller cannot be guaranteed, which will affect the working reliability of the magnetic bearing controller. Achieve the effect of improving the working reliability of the magnetic bearing controller by ensuring the power supply reliability of the magnetic bearing controller

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