SENSORLESS FIELD ORIENTED CONTROL OF BRUSHLESS ...

Figure C.13 – Single-turn full-pitch winding...............................................................................294
Figure C.14 – CFP winding with ideal squarewave rotor............................................................296
Figure C.15 – CFP winding with squarewave rotor: (a) rotor-stator flux linkage, and (b) its
position-derivative...............................................................................................................296
Figure C.16 – Sinusoidal winding and squarewave rotor. ...........................................................297
Figure C.17 – Summary of rotor-stator flux linkage Fourier series amplitudes. .........................299
Figure C.18 – Summary of MMF and rotor-stator flux linkage results. ......................................300
Figure C.19 – Amplitudes of harmonic components. ..................................................................301
Figure C.20 – ‘Natural’ torque and bEMF relationships. ............................................................304
Figure C.21 – Torque and bEMF in terms of rotor-stator flux linkage........................................304
Figure D.1 – Phasor diagrams for positive-, zero-, and negative- sequence sets.........................310
Figure D.2 – An alternate (but equivalent) interpretation of sequence sets.................................311
Figure D.3 – Sequence order of some low-order harmonics. ......................................................311
Figure D.4 – Passive impedance load driven by source...............................................................313
Figure D.5 – Equivalent source showing that ZS is common-mode............................................314
Figure D.6 – Neutral voltage of load is common mode voltage of source. .................................315
Figure D.7 – Motor load driven by source...................................................................................315
Figure D.8 – Equivalent motor bEMF arrangement. ...................................................................317
Figure D.9 – Load neutral voltage influence by ZS of source and bEMF. ..................................318
Figure D.10 – Projection of base SVs of 180° inverter onto AB plane. ......................................326
Figure D.11 – 3-D base vectors of 180° inverter. ........................................................................ 327
Figure E.1 – Some common axes and rotor angle conventions. .................................................. 332
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