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BSRM Maxwell stress analysis modeling method for non-overlapping region of stator and rotor

A non-overlapping area, stator-rotor technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems that BSRM electromagnetic torque and levitation force cannot be obtained

Active Publication Date: 2019-10-01
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a BSRM Maxwell stress analytical modeling method in the non-overlapping region of the stator and rotor to solve the problem existing in the prior art that the stator and rotor tooth poles are non-overlapping. Obtaining Electromagnetic Torque and Levitation Force of BSRM by Stress Method

Method used

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  • BSRM Maxwell stress analysis modeling method for non-overlapping region of stator and rotor

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Embodiment Construction

[0113]The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0114] The embodiment of the present invention is a three-phase 12 / 8BSRM, the number of poles of the stator teeth p s is 12, the number of phases p m is 3, the three-phase winding structure, connection method and suspension principle are the same, and the phase difference is 120° and 240°. Such as figure 1 As shown, taking phase A as an example, the main winding N ma It is composed of windings on four stator tooth poles connected in series; mutually orthogonal radial suspension windings N sa1 , N sa2 Then in reverse series. When N ma , N sa1 and N sa2 When energized at the same time, N sa1 , N sa2 The resulting levitation flux Ψ sal , Ψ sa2 with N ma The generated main flux Ψ ma Su...

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Abstract

The invention discloses a BSRM Maxwell stress analysis modeling method for a non-overlapping region of a stator and a rotor. The method comprises: in the non-overlapping region of the BSRM stator androtor, according to the distribution characteristics of the air gap magnetic circuit and magnetic density obtained by the finite element, considering that the stator flux is simultaneously linked to the two adjacent rotor teeth, and selecting two teeth for the two adjacent rotor teeth; using a new integral path to solve the clockwise and counterclockwise components of the BSRM electromagnetic torque and the clockwise and counterclockwise components of the radial levitation force, and superimposing to establish the Maxwell stress method for the non-overlapping region of the BSRM stator and rotor. The rotor position angle range of the BSRM Maxwell stress method analytical model is widened, and a foundation is laid for accurate control over BSRM multi-phase conduction. The method is suitablefor Maxwell stress method accurate analytical modeling of the non-overlapping area of the double-winding BSRM stator and the double-winding rotor with different phase numbers and different pole numbercombinations of the stator and the rotor.

Description

technical field [0001] The invention belongs to the technical field of modeling of a bearingless switched reluctance motor, and in particular relates to a BSRM Maxwell stress method analytical model of a non-overlapping region of a stator and a rotor. Background technique [0002] Bearingless switched reluctance motor (BSRM) is a new type of magnetic levitation motor that integrates drive and suspension. It has the advantages of simple structure, no lubrication, no mechanical wear, wide speed range, excellent fault-tolerant operation ability and long life. , high efficiency, low cost and other advantages, it breaks through the limitations of high speed and high power, and becomes an ideal choice for high-speed and ultra-high-speed occasions in industrial applications. [0003] Both the main winding and the suspension winding of the BSRM are superimposed on the stator poles, and the magnetic fields generated by the two are superimposed on each other. By controlling the curren...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/23G06F2119/06
Inventor 王燚王宏华路天航张经炜谭超
Owner HOHAI UNIV
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