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Control method and system for magnetic suspension motor rotor

A technology of motor rotor and control method, applied in the field of magnetic suspension, to achieve the effect of suppressing vibration and suppressing rotor vibration

Active Publication Date: 2017-08-29
浙江中源磁悬浮技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for controlling the rotor of a magnetic levitation motor, so as to solve the position control problem of the flexible rotor above the critical speed, and to suppress the adverse effects of external disturbances on the position control of the magnetic levitation

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  • Control method and system for magnetic suspension motor rotor
  • Control method and system for magnetic suspension motor rotor
  • Control method and system for magnetic suspension motor rotor

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0051] figure 1 It is a flow chart of the control method of the magnetic levitation motor rotor of the present invention. Such as figure 1 As shown, the method includes:

[0052] Step 101: Obtain the displaceme...

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Abstract

The invention discloses a control method and a control system for a magnetic suspension motor rotor. The method comprises the steps of acquiring the displacement amount of a rotor offset equilibrium position of a magnetic suspension motor, and generating a displacement signal according to the displacement amount; performing proportion-integral-differential control, phase compensation and disturbance compensation on the displacement signal to generate an overall control signal by cooperatively working of the three kinds of operation; amplifying the overall control signal, so as to control the rotor of the motor to recover to the equilibrium position. By using the control method provided by the invention, rotor vibration caused by external disturbance and vibration of the rotor close to a critical rotation speed are effectively suppressed, vibration of the magnetic suspension rotor close to the critical rotation speed is also effectively suppressed, and thus the rotor can be in a stable suspension state.

Description

technical field [0001] The invention relates to the field of magnetic levitation, in particular to a method and system for controlling a rotor of a magnetic levitation motor. Background technique [0002] Magnetic levitation motor refers to a new type of motor that uses magnetic levitation bearings to suspend the motor rotor so that it can rotate without friction and contact. Since there is no contact between the rotor and the stator, it has the following advantages: (1) no wear and long service life; (2) high circumferential speed of the rotor; (3) no need for lubrication and sealing; (4) low heat generation , low power consumption; (5) Strong environmental adaptability, able to work in vacuum and corrosive media. In view of these advantages, magnetic levitation motors, especially high-speed magnetic levitation motors, have become more and more widely used in the fields of high-speed blowers / compressors, energy storage flywheels, vacuum molecular pumps, and high-speed gas ...

Claims

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Application Information

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IPC IPC(8): H02P21/13H02P21/18
CPCH02P21/13
Inventor 纪历
Owner 浙江中源磁悬浮技术有限公司
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