An emergency stop control device, a magnetic levitation system and an emergency stop control method thereof

Abstract

The invention discloses an emergency stop control device, a magnetic levitation system and an emergency stop control method thereof. The device comprises: an emergency stop switch and a discharge control unit; In the case of an emergency stop command, the normally closed switch of the emergency stop switch is in the open state, and the normally open switch of the emergency stop switch is in the closed state to realize the emergency stop of the magnetic levitation system; the discharge control unit is used in the magnetic levitation system After the emergency stop and the discharge part of the magnetic levitation system has not completed the discharge, the discharge of the discharge part of the magnetic levitation system is used as the power supply to maintain the power supply of the magnetic levitation system until the discharge part of the magnetic levitation system completes the discharge. The solution of the present invention can solve the problem that the reliability of the magnetic levitation centrifuge system is affected by resetting the emergency stop switch before the magnetic levitation centrifuge system is completely powered off, and achieves the effect of improving the reliability of the magnetic levitation centrifuge system.

Description

technical field [0001] The invention belongs to the technical field of magnetic levitation, and in particular relates to an emergency stop control device, a magnetic levitation system and an emergency stop control method thereof, in particular to a magnetic levitation system control circuit, a magnetic levitation system and an emergency stop control method thereof. Background technique [0002] In the magnetic levitation centrifuge system, due to the large energy storage capacitor on the DC bus of the inverter, when the unit is shut down in an emergency, the system needs a certain discharge time to completely cut off the power of the unit. If the emergency stop switch is reset before the unit is completely powered off If the unit is powered on again, the controller of the magnetic levitation centrifuge system cannot be reliably powered off and reset because it has not been completely powered off. [0003] The above content is only used to assist in understanding the technica...

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Problems solved by technology

[0004] The object of the present invention is to, in view of the above defects, provide an emergency stop control device, a magnetic levitation system and its emergency stop control method, to solve the problem of resetting the emergency stop switch before the magnetic levitation centrifuge system is completely powered off, which will cause the magnetic levitation centrifuge system The controller is not completely powered off and cannot be reliably powered off and reset, which affects the reliability of the magnetic levitation centrifuge system, and achieves the effect of improving the reliability of the magnetic levitation centrifuge system

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