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Third Harmonic Utilization in Permanent Magnet Machines

E-BookPDF1 - PDF WatermarkE-Book
211 Seiten
Englisch
Springer Nature Singaporeerschienen am29.08.20181st ed. 2019
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.





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)mehr
Verfügbare Formate
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E-BookPDF1 - PDF WatermarkE-Book
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Produkt

KlappentextThis 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.





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)
Details
Weitere ISBN/GTIN9789811306297
ProduktartE-Book
EinbandartE-Book
FormatPDF
Format Hinweis1 - PDF Watermark
FormatE107
Erscheinungsjahr2018
Erscheinungsdatum29.08.2018
Auflage1st ed. 2019
Seiten211 Seiten
SpracheEnglisch
IllustrationenXI, 211 p. 140 illus., 132 illus. in color.
Artikel-Nr.3957014
Rubriken
Genre9200

Inhalt/Kritik

Inhaltsverzeichnis
1;Contents;5
2;Abstract;9
3;1 General Introduction;12
3.1;1.1 Pole Shaping Techniques;16
3.1.1;1.1.1 Pulse Width Modulation;16
3.1.2;1.1.2 Modular Pole;17
3.1.3;1.1.3 Halbach;18
3.1.4;1.1.4 Pole Shaping;19
3.1.5;1.1.5 Sinusoidal Plus 3rd Harmonic Shaped Rotor Shape;21
3.2;1.2 Outline of the Book;21
4;2 Torque Enhancement of Three Phase Surface-Mounted Permanent Magnet Machine Using 3rd Order Harmonic;23
4.1;2.1 Introduction;23
4.2;2.2 SPM Machines with Various PM Shapes;25
4.3;2.3 PM Shape with Optimal 3rd Harmonic and FE Validation;27
4.3.1;2.3.1 Sinusoidal Shaping PM;28
4.3.2;2.3.2 PM Shape with Optimal Amplitude of 3rd Harmonic;30
4.3.3;2.3.3 FE Validation;33
4.3.4;2.3.4 Influence of PM Edge Thickness;34
4.4;2.4 Finite Element Analysis of Electromagnetic Performance;37
4.4.1;2.4.1 Open-Circuit Flux Density Distribution and Back-EMFs;37
4.4.2;2.4.2 Torque Characteristics;37
4.5;2.5 Experimental Verification and Discussions;42
4.6;2.6 Summary;45
4.7;References;47
5;3 Average Torque Improvement of Three Phase Interior Permanent-Magnet Machine Using 3rd Harmonic in Rotor Shape;49
5.1;3.1 Introduction;49
5.2;3.2 Rotor Configurations of IPM Machines;51
5.3;3.3 Rotor Shaping with 3rd Harmonic;51
5.3.1;3.3.1 ICS Shaped Rotor;53
5.3.2;3.3.2 Rotor Shape with Different Amplitude of 3rd Harmonic;55
5.4;3.4 Simplified Analytical Analysis of Average Torque Improvement;57
5.5;3.5 Finite Element Analysis of Electromagnetic Performance;60
5.5.1;3.5.1 Open-Circuit Flux Density Distribution and Back-EMFs;60
5.5.2;3.5.2 Torque Characteristics;63
5.6;3.6 Experimental Verification and Discussions;67
5.7;3.7 Summary;71
5.8;References;71
6;4 Third Order Harmonic Utilization in In-Wheel Machines to Improve Output Torque;75
6.1;4.1 Introduction;75
6.2;4.2 In-Wheel Machines with Various PM-Shaped Rotor;76
6.3;4.3 PM Shape with Optimal 3rd Harmonic;78
6.3.1;4.3.1 Influence of PM Edge Thickness;78
6.4;4.4 Finite Element Analysis of Electromagnetic Performance;80
6.4.1;4.4.1 Open-Circuit Flux Density Distribution and Back-EMFs;81
6.4.2;4.4.2 Torque Characteristics;83
6.5;4.5 Summary;85
6.6;References;85
7;5 Influence of Airgap Flux Density Waveform on Optimal Split Ratio and Torque Density of SPM Machines;88
7.1;5.1 Introduction;88
7.2;5.2 General Torque Density Equation;90
7.3;5.3 Derivation of Optimal Split Ratio for Maximum Torque Density;92
7.3.1;5.3.1 Calculation of Slot Area;92
7.3.2;5.3.2 Optimal Split Ratio;94
7.3.3;5.3.3 TD Comparison Under Optimal Split Ratio;95
7.4;5.4 FE Analysis of Optimal Split Ratio and Torque;100
7.5;5.5 Experimental Verification;102
7.6;5.6 Summary;106
7.7;References;107
8;6 Investigation of Stator Flux Density and Iron Loss in 3rd Order Harmonic Shaped Surface-Mounted Permanent Magnet Machines;108
8.1;6.1 Introduction;108
8.2;6.2 SPM Machines with Various PM Shapes;110
8.3;6.3 Analytically Predicted Influence of 3rd Harmonic on Staror Iron Loss;111
8.3.1;6.3.1 Flux Density;112
8.3.2;6.3.2 Iron Loss;117
8.4;6.4 Finite Element Analysis;119
8.5;6.5 Summary;127
8.6;References;128
9;7 Analysis of Cogging Torque in Surface-Mounted Permanent Magnet Machines with Shaped Magnets;129
9.1;7.1 Introduction;129
9.2;7.2 Analytical Prediction of Cogging Torque Based on Energy Method;131
9.2.1;7.2.1 Simplified Airgap Permanence Function;132
9.2.2;7.2.2 Cogging Torque for Sinusoidal Airgap Flux Density Distribution;134
9.2.3;7.2.3 Cogging Torque for Sine+3rd Airgap Flux Density Distribution;135
9.2.4;7.2.4 Cogging Torque for Sine and Sine+3rd Airgap Flux Density Distributions;138
9.3;7.3 Three-Phase SPM Machines with Shaped PMs;139
9.4;7.4 FE Analysis;140
9.5;7.5 Experimental Verification;146
9.6;7.6 Summary;148
9.7;References;148
10;8 Influence of Harmonics on Radial Force and Vibration of Surface-Mounted Permanent Magnet Machines;150
10.1;8.1 Introduction;150
10.2;8.2 12-Slot/10-Pole PM Machines with Shaped Magnets;152
10.3;8.3 Radial Force Density Distributions;153
10.3.1;8.3.1 Radial Force Density Under No Load Condition;153
10.3.2;8.3.2 Radial Force Density Under Rated Load;155
10.4;8.4 Mode Analysis;160
10.5;8.5 Summary;160
10.6;References;163
11;9 Multi-objective Optimization of &!blank;Surface-Mounted Permanent Magnet Machine with Third Harmonic Shaped Rotor;165
11.1;9.1 Introduction;165
11.2;9.2 Topology and Parametric Model of SPM Machine;167
11.3;9.3 Multi-objective Optimization Procedure;169
11.3.1;9.3.1 Flowchart of Multi-objective Optimization;169
11.3.2;9.3.2 Sensitivity Analysis;171
11.3.3;9.3.3 Multi-objective Optimization;172
11.4;9.4 Electromagnetic Performance Comparison;175
11.4.1;9.4.1 Open-Circuit Flux Density Distributions and Back-EMFs;175
11.4.2;9.4.2 Torque Characteristics;179
11.4.3;9.4.3 Efficiency;179
11.5;9.5 Experimental Validation and Discussion;181
11.6;9.6 Summary;181
11.7;References;184
12;10 Using Third Harmonic for Shape Optimization of Flux Density Distribution in Slotless Linear Permanent-Magnet Machine;186
12.1;10.1 Introduction;186
12.2;10.2 PMLMS with Various PM Shapes;188
12.3;10.3 PM Shape Optimization;189
12.3.1;10.3.1 Simplified Estimation of PM Shapes;189
12.3.2;10.3.2 Optimization of Sinusoidal PM Shapes;191
12.3.3;10.3.3 PM Shape with Third Harmonic;192
12.4;10.4 Performance Evaluation;192
12.5;10.5 Summary;199
12.6;References;200
13;11 Design and Analysis of Permanent Magnet Linear Synchronous Machine with Third Harmonic Shaping Mover;202
13.1;11.1 Introduction;202
13.2;11.2 PMLSM with Different Shaping Movers;204
13.3;11.3 Optimal Design of PM Edge Thickness and Pole Arc Coefficient;205
13.4;11.4 Electromagnetic Performance Comparision;208
13.4.1;11.4.1 Open-Circuit Flux Density Distributions and Back-EMFs;209
13.4.2;11.4.2 Thrust Force Characteristics;210
13.4.3;11.4.3 Losses and Efficiency;213
13.5;11.5 Summary;215
13.6;References;215mehr

Autor

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)