Direct Torque Control with Space Vector Modulation (DTC-SVM) of ...

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Modeling and control modes of PM synchronous motor drives The current requirement versus torque is illustrated in Fig. 2.15 for the different control strategies. It can be seen, that up to 1 pu torque, the requirement for current is lowest for CSF control. Highest than 1 pu torque the low current needs MTPA control requirement lowest current for a given torque. 3 I sN [ pu] 2.5 2 1.5 UPF CSF CTA MTPA 1 0.5 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 M [ ] eN pu Figure 2.15. Stator current amplitude under different control strategies versus electromagnetic torque. The voltage requirement versus torque for the different control strategies is illustrated in Fig. 2.16. It can be seen, that CSF requires the highest value of stator voltage. U sN [ pu] 2.5 2 1.5 1 CSF CTA MTPA 0.5 UPF 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 M [ ] eN pu Figure 2.16. Stator voltage amplitude versus electromagnetic torque under different control strategies (at 1 pu rotor speed). 3 PN 2 [ pu] 1 UPF CSF CTA MTPA 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 M [ ] eN pu Figure 2.17. Active power versus electromagnetic torque under different control strategies. 30
Modeling and control modes of PM synchronous motor drives The active power requirement as a function of torque is illustrated in Fig. 2.17 for the different control strategies. It can be seen, that all control strategies require approximately the same value of active power for a given torque. CSF control needs less active power in the region up to 1.3 pu torque. The reactive power requirement as a function of torque is illustrated in Fig. 2.18. It can be seen, that CTA control requires the highest value of active power for a given torque and the CSF control lowest. 4 QN [ pu] 3 2 CTA MTPA 1 UPF CSF 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 M [ ] eN pu Figure 2.18. Reactive power versus electromagnetic torque under different control strategies. 1.1 1 0.9 UPF CSF cosφ 0.8 MTPA 0.7 0.6 CTA 0.5 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 M [ ] eN pu Figure 2.19. Power factor as a function of electromagnetic torque under different control strategies. The power factor as a function of torque is illustrated in Fig. 2.19. It can be seen, that as it could be expected, UPF control requires constant power factor for a given torque. CSF control is very close to the unity power factor up to 1 pu torque. The above analysis can be summarized as shown in Table. 2.2. 31
Page 1 and 2: POLITECHNIKA WARSZAWSKA WARSAW UNIV
Page 3 and 4: Contents Table of Contents Chapter
Page 5 and 6: Introduction Chapter 1 INTRODUCTION
Page 7 and 8: Introduction to surface-mounted mac
Page 9 and 10: Introduction vector control, which
Page 11 and 12: Introduction presented and studied.
Page 13 and 14: Modeling and control modes of PM sy
Page 33: Modeling and control modes of PM sy
Page 39 and 40: Voltage source PWM inverter for PMS
Page 57 and 58: Control methods of PM Synchronous m
Page 69 and 70: Direct Torque Control with Space Ve
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Direct Torque Control with Space Ve
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Sensorless Speed Direct Torque Cont
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DSP implementation of DTC-SVM contr
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Summary and closing conclusion Chap
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Appendices APPENDICES A1 Rotor and
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Appendices ⎡ ⎤ ⎢ 1 0 ⎥ ⎡K
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Appendices i(t1->t0)+=it1 it1: it1=
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Appendices A7 PWM technique - six s
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List of symbol List of symbols Symb
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References Books and PhD-Thesis 1.
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References 39. J.-I. Itoh, N. Nomur
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References 74. N. Ertugrul, P. Acar
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References 108. D. Świerczyński,
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