Inverse dynamic decoupling sliding mode control system of current controlled bearingless induction motor

A technology for asynchronous motors and control systems, applied in control systems, control generators, vector control systems, etc.

Inactive Publication Date: 2019-01-15
HENAN UNIV OF SCI & TECH
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Problems solved by technology

In order to improve the dynamic decoupling control performance of the overall inverse system of the bearingless asynchronous motor, and overcome the influence of load deflection and motor parameter changes on the control performance, a sliding mode control system is formed on the basis of the decoupling of the overall inverse system, and the bearingless asynchronous motor The dynamic decoupling control method of the inverse system is organically combined with the sliding mode variable structure controller, and there is still little research

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  • Inverse dynamic decoupling sliding mode control system of current controlled bearingless induction motor
  • Inverse dynamic decoupling sliding mode control system of current controlled bearingless induction motor
  • Inverse dynamic decoupling sliding mode control system of current controlled bearingless induction motor

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Embodiment Construction

[0055] The inverse dynamic decoupling sliding mode control system of the current-controlled bearingless asynchronous motor, through the organic combination of the inverse system decoupling method and the sliding mode variable structure controller, realizes the high performance dynamic decoupling control of the bearingless asynchronous motor, the inverse dynamic The decoupling sliding mode control system mainly includes the original system of the current control type bearingless asynchronous motor, the reverse system of the current control type bearingless asynchronous motor and four sliding mode control regulators; the four sliding mode control regulators are connected to the current control type bearingless Inverse system of asynchronous motor; the inverse system of current-controlled bearingless asynchronous motor is connected in series with the original system of current-controlled bearingless asynchronous motor, and the current-controlled bearingless asynchronous motor syste...

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Abstract

The inverse dynamic decoupling sliding mode control system of current-controlled bearingless asynchronous motor mainly includes the original system of current-controlled bearingless asynchronous motorthe inverse system of current-controlled bearingless asynchronous motor and four sliding mode control regulators. Four sliding mode control regulators are connected to the inverse system of the current controlled bearingless asynchronous motor. The inverse system of current-controlled bearingless asynchronous motor is connected in series with the original system of current-controlled bearinglessasynchronous motor, which is decoupled into four pseudo-linear integrating subsystems by inverse analytical method, and the four pseudo-linear integrating subsystems correspond to their sliding mode control regulators to form a closed-loop control system. The invention realizes the organic combination of the inverse system dynamic decoupling control method and the sliding mode variable structure controller, It can effectively improve the dynamic decoupling control performance of bearingless asynchronous motor system, can effectively improve the anti-load torsion ability of the system, as wellas the adaptive robustness to parameter changes of bearingless asynchronous motor, and can be used for high-performance dynamic decoupling control of bearingless asynchronous motor.

Description

technical field [0001] The invention relates to the technical field of drive and control of special AC motors, in particular to an inverse dynamic decoupling sliding mode control system of a current-controlled bearingless asynchronous motor. Background technique [0002] Bearingless motor is based on the similarity between magnetic bearing and AC motor stator structure. It is a new type of motor suitable for high-speed operation developed in recent years. It has broad application prospects in aerospace, material sealing transmission, advanced manufacturing and other fields. A search of existing literature and patents found that there have been preliminary studies on the decoupling method of the inverse system of the bearingless asynchronous motor and the PID regulator of the pseudo-linear subsystem. In order to improve the dynamic decoupling control performance of the overall inverse system of the bearingless asynchronous motor, and overcome the influence of load deflection ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/22H02P21/00
CPCH02P21/0007H02P21/0021H02P21/22
Inventor 卜文绍何方舟王勇陈有鹏屠晓婉乔岩茹
Owner HENAN UNIV OF SCI & TECH
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