磁気軸受のための電力供給システムおよびそのための制御方法

Japanese Patent JP7130731

B2

The present invention provides a power supply system for a magnetic bearing and a control method therefor. The system comprises: a rectifying and filtering circuit (1) configured to rectify and filter an alternating current from an AC input power supply to obtain a first direct current with a first DC bus voltage, wherein the first direct current is configured to supply power to an electric motor controller (5) of an electric motor (6) to which the magnetic bearing belongs; a power obtaining circuit (9) configured to obtain a second direct current with a second DC bus voltage from the first direct current, wherein the second DC bus voltage is within an input voltage range allowed by the DC-DC power supply (2); and a DC-DC power supply (2) configured to convert the second direct current to a third direct current with a third DC bus voltage, wherein the third direct current is configured to supply power to a bearing controller (4) of the magnetic bearing (3) . The solutions of the present invention can overcome the defects of a poor power supply stability, a complex structure and poor reliability in the prior art and achieve the beneficial effects of a favorable power supply stability, a simple structure and a favorable reliability.

Guo, Wei Lin
He, Young Lin
One, fan
Fu, Daoff

JP2020504679A

September 05, 2022

October 29, 2018

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Glee Green Refrigeration Technology Center Company Limited of Zhuhai

H02P29/40; F16C32/04; H02K7/09; H02M7/12

JP4127895U
JP7238929A

US5574345
CN106849789A

Asamura patent office

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