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BSRM fuzzy variable-parameter rotor vibration active control method

A rotor vibration and active control technology, which is applied in electronically commutated motor control, motor generator control, AC motor control, etc., can solve problems such as low rotor suspension stability and limited motor speed, to achieve smooth operation and restrain the rotor The effect of vibration

Active Publication Date: 2020-01-03
南京贺普科技有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to provide a BSRM fuzzy variable parameter rotor vibration active control method to solve the defects in the prior art that the stability of the rotor suspension is not high and the speed of the motor is limited

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  • BSRM fuzzy variable-parameter rotor vibration active control method
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  • BSRM fuzzy variable-parameter rotor vibration active control method

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Embodiment Construction

[0047] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0048] like Figure 1 to Figure 4 As shown, the research object of the embodiment of the present invention is the three-phase 12 / 8 structure BSRM, the α direction is the horizontal direction, and the β direction is the vertical direction. Only the main winding (W ma ), α-direction levitation winding (W sa1 ) and β-direction levitation winding (W sa2 ). W ma It is composed of 4 pole windings separated by 90° in series, and W sa1 , W sa2 They are respectively formed by anti-serialization of two suspension windings radially opposite in the α and β directions. W ma Generates bias flux, W sa1 Respectively, the bias magnetic flux has the effects of strengthening (at the air gap a1) and weakening (at the air gap a3), thereby generating an unbala...

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Abstract

The invention discloses a BSRM (Bearingless Switched Reluctance Motor) fuzzy variable-parameter rotor vibration active control method, comprising the following steps: deriving a port controlled Hamiltonian model of a BSRM mechanical subsystem according to a BSRM rotor kinetic equation and a passive control theory; constructing a natural interconnection injection damping controller, and deriving apassive control law meeting the stability of a closed-loop system; and performing segmented control by using a composite controller, and changing the injection damping parameters through fuzzy reasoning near the critical rotating speed of a BSRM rotor. A passive controller of a BSRM rotor mechanical subsystem is designed, which can restrain rotor vibration, enable a BSRM operating at a high speedto stably pass through the critical rotating speed and realize stable operation of the motor.

Description

technical field [0001] The invention relates to the field of a bearingless switched reluctance motor and its control, in particular to a BSRM fuzzy variable parameter rotor vibration active control method. Background technique: [0002] Bearingless switched reluctance motor (BSRM) is a combination of rapidly developing magnetic levitation technology and switched reluctance motor (SRM). With the advantages of high reliability, high allowable speed, low frictional power consumption, no lubrication and long life, it has outstanding advantages in high-speed and ultra-high-speed operation occasions, and is one of the hotspots in the field of high-speed motor research. [0003] The rotor vibration problem is very prominent when the BSRM is running at high speed, which directly affects the stability of the rotor suspension and limits the increase of the motor speed. Especially when the critical speed is passed, the stator and rotor parts inside the motor will collide and rub if it...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/05H02P25/098
CPCH02P21/05H02P25/098
Inventor 陈凌
Owner 南京贺普科技有限公司