Shark -new motor design concept for energy saving- applied to - VBN

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i instantaneous current Ψ ϕ flux linkage magnetic flux MMF magnetomotive force D s stator outer diameter D bs stator pole root diameter D r1 D br rotor pole root diameter D g( m) mean air gap diameter of the Shark SRM D s(m) mean stator diameter of the Shark SRM D r(m) mean rotor diameter of the Shark SRM l pole circular stator pole length β s stator pole arc β r g rotor pole arc air gap length l stk stack length l stk ' equivalent stack length h pole stator pole height of the cylindrical air gap SRM n t number of Shark segments β angle at the basis of the Shark profile l shk Shark tooth pitch h shk height of the Shark profile δ t reduction of the pole height due to the Shark teeth k w fractional reduction of the pole height due to the Shark teeth iv rotor diameter A cross-section L inductance of the magnetic circuit k inductance gain k energy gain W H g air gap magnetic field intensity H sp stator pole magnetic field intensity H rp rotor pole magnetic field intensity H sy stator yoke magnetic field intensity H ry rotor body magnetic field intensity
k ϕ k k k e i p ratio of electrical loading on rotor and stator emf factor incorporating the winding distribution factor and the ratio between the area spanned by the salient poles and the total air gap area current waveform factor electrical power waveform factor w sp width of the stator pole w rp width of the rotor pole w g width of the air gap w sy width of the stator yoke w ry width of the rotor yoke A sp area of the stator pole A rp area of the rotor pole A g area of the rotor pole A sy area of the stator yoke A ry area of the rotor yoke l sp length of the stator pole flux path l rp length of the rotor pole flux path l sy length of the stator yoke flux path l ry length of the stator yoke flux path Subscripts 0 cylindrical air gap saw saw toothed air gap square square-wave air gap ellipse elliptical air gap trap trapezoidal air gap Superscripts u unaligned rotor position a aligned rotor position v
Page 1: Shark -new motor design concept for
Page 6 and 7: Abstract The aim of this thesis is
Page 13 and 14: Table of contents Preface………
Page 15 and 16: Chapter 1 Introduction Chapter 1 In
Page 17 and 18: Chapter 1 Introduction Table 1.1 Fu
Page 19 and 20: Chapter 1 Introduction The magnetic
Page 21 and 22: Chapter 1 Introduction Fig.1.7 Illu
Page 23 and 24: [Wb] O Wf Wconv Fig. 1.9 Conversion
Page 25 and 26: Chapter 1 Introduction 1.5 Area of
Page 27 and 28: Chapter 1 Introduction Based on the
Page 29 and 30: Chapter 1 Introduction Chapter 3, F
Page 31 and 32: Chapter 2 Chapter 2 Linear analysis
Page 33 and 34: Chapter 2 Linear analysis of the Sh
Page 35 and 36: ( y) Chapter 2 Linear analysis of t
Page 45 and 46: ksquare Lsquare L0 Chapter 2 Linear
Page 47 and 48: L Chapter 2 Linear analysis of the
Page 49 and 50: inductance gain 4 3.5 3 2.5 2 1.5 C
Page 53 and 54: Chapter 3 Chapter 3 Finite Element
Page 55 and 56: Chapter 3 Finite Element modeling o
Page 57 and 58: Chapter 3 Finite Element modeling o
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Chapter 3 Finite Element modeling o
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1 Chapter 3 Finite Element modeling
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flux linkage [Wb] Chapter 3 Finite
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Chapter 4 Chapter 4 Analytical mode
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Chapter 4 Analytical modelling of t
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N s because there are ph Chapter 4
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where where λ ( , θ ) 102 Chapter
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104 energy gain Chapter 4 Analytica
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106 Chapter 4 Analytical modelling
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112 radial force [N] 1900 1800 1700
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114 radial force [N] Chapter 4 Anal
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120 Chapter 5 Measurement and compa
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turn on angle [deg] 128 10 8 6 4 2
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140 copper loss [W] Chapter 5 Measu
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142 d. Power factor Chapter 5 Measu
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144 f. Specific torque Chapter 5 Me
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148 Chapter 6 Manufacturing conside
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158 Chapter 7 Summary and Conclusio
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Appendix A Design data of Induction
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170 Appendix B Definition of the ai
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178 air gap flux density [T] Append
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Appendix C 180 Appendix C Analytica
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A A A w1 w2 w3 182 = w ⋅ v = w =
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Appendix C.4 184 Appendix C Analyti
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Appendix C.5 Permeance ratio 186 Ap
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Appendix D Appendix D.1 188 Appendi
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190 References [16] T.J.E. Miller,
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192 References Conference, , 27 Jul
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194 Volume: 2 , 1996 , Page(s): 715
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196 References [96] F. Abrahamsen,
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188 References
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Shark -new motor design concept for energy saving- applied to - VBN

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