NDLI: Magnetic flux leakage modelling and optimisation of a CRAHMB for DC motor

Content Provider	IET Digital Library
Author	Ren, Xiaojun Le, Yun Sun, Jinji Han, Bangcheng Wang, Kun
Abstract	In this study, a combined radial–axial hybrid magnetic bearing (CRAHMB) with four poles is designed for high-speed brushless DC motor. Owing to the small distance of radial and axial unit of CRAHMB, the magnetic flux leakage (MFL) in both radial and axial directions is complex and serious. This study focuses on effective analytical model and optimisation of CRAHMB including flux leakage of permanent magnet circuit and control electromagnetic circuit. MFL analytical model was built based on equivalent magnetic circuit method. Under the condition of satisfying the maximum bearing capacity, the MFL coefficients were optimised with sequence quadratic programming method. A set of optimum parameters were suggested. MFL before and after optimisation are compared by finite element method. Finally, current stiffness calculated with optimised analytical model was verified on a DC motor experiment. The result shows the accuracies of both the axial and radial current stiffness are enhanced.
Starting Page	212
Ending Page	221
Page Count	10
ISSN	17518660
Volume Number	11
e-ISSN	17518679
Issue Number	Issue 2, Feb (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/11/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2016.0259
Journal	IET Electric Power Applications
Publisher Date	2017-02-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Brushless DC Motor Combined Radial-axial Hybrid Magnetic Bearing Control Electromagnetic Circuit CRAHMB D.C. Machines Equivalent Circuit Equivalent Magnetic Circuit Method Finite Element Analysis Finite Element Method High Speed Brushless DC Motor Magnetic Bearings Magnetic Circuit Magnetic Flux Magnetic Flux Leakage Modelling Magnetic Leakage Maximum Bearing Capacity MFL Analytical Model Optimisation Optimisation Technique Other Magnetic Material Application And Device Permanent Magnet Circuit Permanent Magnets Quadratic Programming Sequential Quadratic Programming Method
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Modelling of torque and speed characterisation of double stator slotted rotor brushless DC motor

Magnetic equivalent circuit modelling of ring winding axial flux machine

Comparative study and performance evaluation of analytical methods for surface mounted permanent magnet brushless motors

Magnetic circuit designing and structural optimisation for a three degree-of-freedom hybrid magnetic bearing

Design and multi-object optimisation of axial flux interior PMSM for EV and HEV applications

Magnet asymmetry in reduction of cogging torque for integer slot axial flux permanent magnet motors

FE Analysis and Computer-Aided Design of a Sandwiched Axial-Flux Permanent Magnet Brushless DC Motor

A novel Integral-force technique for the analysis of an axial-field permanent-magnet brushless DC motor using FE method

FE analysis and CAD of radial-flux surface mounted permanent magnet brushless DC motors

Magnetic flux leakage modelling and optimisation of a CRAHMB for DC motor

Similar Documents

Modelling of torque and speed characterisation of double stator slotted rotor brushless DC motor

Magnetic equivalent circuit modelling of ring winding axial flux machine

Comparative study and performance evaluation of analytical methods for surface mounted permanent magnet brushless motors

Magnetic circuit designing and structural optimisation for a three degree-of-freedom hybrid magnetic bearing

Design and multi-object optimisation of axial flux interior PMSM for EV and HEV applications

Magnet asymmetry in reduction of cogging torque for integer slot axial flux permanent magnet motors

FE Analysis and Computer-Aided Design of a Sandwiched Axial-Flux Permanent Magnet Brushless DC Motor

A novel Integral-force technique for the analysis of an axial-field permanent-magnet brushless DC motor using FE method

FE analysis and CAD of radial-flux surface mounted permanent magnet brushless DC motors

Magnetic flux leakage modelling and optimisation of a CRAHMB for DC motor