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Third Harmonic Utilization in Permanent Magnet Machines de Kai Wang

Third Harmonic Utilization in Permanent Magnet Machines

Autor Kai Wang, Zi-Qiang Zhu
en Limba Engleză Hardback – 17 sep 2018
This book investigates the utilization of harmonics in the permanent magnet (PM) or rotor shape to improve the torque density of PM brushless AC machines including three-phase inner rotor and outer rotor machines, five-phase machines, dual three-phase machines, linear machines, by means of analytical, finite element analyses, and as well as experimental validation. 

The torque density can be improved while the torque ripple remains low in PM shaping utilizing the 3rd harmonic. In this book, the analytical expression of output torque is derived for PM machines with rotor shape using the 3rd harmonic, and then the optimal 3rd harmonic for maximizing torque is analytically obtained. 

The book compares the PM shape in surface-mounted PM (SPM) machines and the rotor lamination shape in interior PM (IPM) machines utilizing the 3rd harmonic, and it becomes clear that their shaping methods and amount of torque improvement are different. 

In a five-phase PM machine, the 3rd harmonic can be utilized in both the current waveform and PM shapes to further improve the output torque. For the dual three-phase SPM machines without deteriorating the torque more than 30% when the optimal 3rd harmonic into both the current and PM shape are injected.

The harmonics in airgap flux density have significant influence on the cogging torque, stator iron flux distribution, and radial force between the rotor and stator. These effects has been investigated as well in this book.

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Specificații

ISBN-13: 9789811306280
ISBN-10: 9811306281
Pagini: 228
Ilustrații: XI, 211 p. 140 illus., 132 illus. in color.
Dimensiuni: 155 x 235 mm
Greutate: 0.49 kg
Ediția:1st ed. 2019
Editura: Springer Nature Singapore
Colecția Springer
Locul publicării:Singapore, Singapore

Cuprins

General Introduction.- Torque Enhancement of Three Phase Surface-Mounted Permanent Magnet Machine Using 3rd Order Harmonic.- Average Torque Improvement of Three Phase Interior Permanent-Magnet Machine Using 3rd Harmonic in Rotor Shape.- Third Order Harmonic Utilization in In-Wheel Machines to Improve Output Torque.- Influence of Airgap Flux Density Waveform on Optimal Split Ratio and Torque Density of SPM Machines.- Investigation of Stator Flux Density and Iron Loss in 3rd Order Harmonic Shaped Surface-Mounted Permanent Magnet Machines.- Analysis of Cogging Torque in Surface-Mounted Permanent Magnet Machines with Shaped Magnets.- Influence of Harmonics on Radial Force and Vibration of Surface-Mounted Permanent Magnet Machines.- Multi-Objective Optimization of Surface-Mounted Permanent Magnet Machine with Third Harmonic Shaped Rotor.- Using Third Harmonic for Shape Optimization of Flux Density Distribution in Slotless Linear Permanent-Magnet Machine.- Design and Analysis of Permanent Magnet Linear Synchronous Machine with Third Harmonic Shaping Mover.

Notă biografică

For internal use only:
Professional Experience
2015-present Professor, Phd supervisor
Nanjing University of Aeronautics and Astronautics
2014-2015 Research and Development Engineer, Ansys Inc., PA, USA
2013-2014 Research associate Siemens Sheffield University Wind Power Research Centre, UK
2010-2013 Research associate, Sheffield University, UK
2009-2010 Post-doctoral researcher, Memorial University, Newfoundland, Canada
EDUCATION
2010-2013 Ph.D in Electrical Engineering, Sheffield University, UK
2004-2009 Ph.D in Electrical Engineering, Zhejiang University, Hangzhou, China.
2000-2004 B.S. in Automation, China Jiliang University, Hangzhou, China
EXPERIENC
2014-2015 Co-simulation between Maxwell and Matlab
2013-2014 PM machine design for wind power
2010-2013 PM machine design for high performance EPS applications
Demonstrator for the undergraduate student in Sheffield University
2009-2010 High efficiency line-start PM motor design and IPM generator design for wind power
2007-2009 Inverter and DSP controller for high speed sensorless control systems.
Technical support of MagneForce motor design software
2007.7-2007.9 Internship position of PM motor design in TECO 
2006-2007 Optimization and development of high-speed sensorless permanent magnet motors
2005-2006 Finite element analysis of three-dimension artificial heart pump motor
PM machine design for high performance EPS applications
Serial DC motor design for electrical machine tools (Bosch Company)
2004-2005 Optimization design of high speed generator for micro-gas turbine

AWARDS AND ORGANIZATION
2014-present IEEE Senior member
2012 Best paper awards in international conference and exhibition on ecological vehicles and renewable energy
2009-2010 Excellent plan for Ph.D thesis of Zhejiang Univeristy Excellent graduate student of Zhejiang University
2007-2008 First-Class Scholarship for Excellent Student of Zhejiang University
“TECO” Enterprise Scholarship of Zhejiang University
“MPS” Enterprise Scholarship of Zhejiang University
“Wang Guosong” Scholarship of Zhejiang University
Award of Excellent Leadership of Graduate Student of ZhejiangUniversity
Award for paper published on Journal of Applied Physics
2000-2004 Excellent Graduate Student of China Jiliang University
First-Class Scholarship for Excellent Student of China Jiliang University (4 times)

Textul de pe ultima copertă

This book investigates the utilization of harmonics in the permanent magnet (PM) or rotor shape to improve the torque density of PM brushless AC machines including three-phase inner rotor and outer rotor machines, five-phase machines, dual three-phase machines, linear machines, by means of analytical, finite element analyses, and as well as experimental validation. 

The torque density can be improved while the torque ripple remains low in PM shaping utilizing the 3rd harmonic. In this book, the analytical expression of output torque is derived for PM machines with rotor shape using the 3rd harmonic, and then the optimal 3rd harmonic for maximizing torque is analytically obtained. 

The book compares the PM shape in surface-mounted PM (SPM) machines and the rotor lamination shape in interior PM (IPM) machines utilizing the 3rd harmonic, and it becomes clear that their shaping methods and amount of torqueimprovement are different. 

In a five-phase PM machine, the 3rd harmonic can be utilized in both the current waveform and PM shapes to further improve the output torque. For the dual three-phase SPM machines without deteriorating the torque more than 30% when the optimal 3rd harmonic into both the current and PM shape are injected.

The harmonics in airgap flux density have significant influence on the cogging torque, stator iron flux distribution, and radial force between the rotor and stator. These effects has been investigated as well in this book.

Caracteristici

Focuses on methods of utilizing the 3rd harmonic to design permanent magnet machines Provides analytical, finite element analyses and experimental validation for each method Explores both rotor shaping and current injection with the 3rd harmonic Investigates different types of PM machines