Integrated magnetic bearing control system and control method for high-speed motor

A magnetic levitation bearing and control system technology, applied in the control system, vector control system, motor generator control, etc., can solve the problems of low integration level, inconvenient debugging and maintenance, etc., achieve high integration level and enhance anti-interference ability , the effect of reducing the ripple

Inactive Publication Date: 2018-03-06
XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of low integration of conventional electromagnetic bearing controllers and inconvenient debugging

Method used

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  • Integrated magnetic bearing control system and control method for high-speed motor
  • Integrated magnetic bearing control system and control method for high-speed motor
  • Integrated magnetic bearing control system and control method for high-speed motor

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Embodiment Construction

[0051] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Furthermore, it should be understood that development work, while potentially complex and time-consuming, would be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0052] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the solution ac...

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Abstract

The invention relates to an integrated magnetic bearing control system and control method for a high-speed motor. The system comprises an upper computer and five control units; each control unit comprises a DSP controller, a signal isolation circuit, a power circuit (three-phase full bridge IPM), a signal conditioning unit and a sensor; the upper computer displays the displacement of a rotor in real time and can input given signals to the DSP controllers, when the rotor deviates from an equilibrium position, the displacement of the rotor deviating from the equilibrium position is detected through the sensors and converted into voltage signals, the voltage signals are fed back to the DSP controllers after passing by the signal conditioning units, and the DSP controllers output PWM control signals after algorithm operation and control power switch pipes in the power circuits to work to adjust the current value of a coil of an electromagnetic bearing to make the rotor stably suspended. Through the arrangement of each DSP controller and the corresponding three-phase full bridge IPM, not only the integration degree of the whole control system is high, but also the anti-interference capability of the magnetic bearing can be improved, and the service life of the bearing is prolonged.

Description

technical field [0001] The invention belongs to an electromagnetic force support device, in particular to an integrated control system and control method of a magnetic suspension bearing for a high-speed motor. Background technique [0002] Magnetic suspension bearing is a new type of bearing with extremely high performance that uses electromagnetic force to achieve no mechanical contact between the rotor and stator. Compared with traditional bearings, magnetic suspension bearing has no mechanical friction, no lubrication, low working environment requirements and higher efficiency. features. [0003] Conventional electromagnetic bearing controllers usually use two DSP or DSP+FPGA control methods to output 10 different PWM control signals for control. At the same time, the drive circuit, isolation circuit and power main circuit in the power circuit usually use independent components Composition, and the bipolar H-type main circuit is built with two traditional power switch t...

Claims

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Application Information

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IPC IPC(8): H02P21/22H02P21/18H02P21/00
CPCH02P21/0085H02P21/18H02P21/22
Inventor 孙宏达曹宽李玉涛贾国超张义
Owner XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST
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