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

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DSP implementation of DTC-SVM control The detailed power circuit of the laboratory setup is shown in Fig. 7.3. Rectifier Inverter three-phase supply network U A U B U C D 1 D3 D5 CF T 1 D 1 T 3 D 3 T 5 D 5 current sensors A B C PMSM D 2 D 4 D 6 T 2 D 2 T 4 D 4 T 6 D 6 speed or position sensor SA SA SB SB SC SC Reference speed DTC-SVM DS1103 microprocessor Figure 7.3. Power circuit of the laboratory setup. In presented system the actual two currents and DC link voltage are measured by LEM sensors and processed by A/D converter. The rotor position and speed are obtained with an encoder of 2500 pulse per revolution. All internal data of DSP can be sent through a D/A converter and displayed in the scope. All data of the PMSM and inverter are given in the Appendices. The control algorithm for PMSM machine was written in C language and was implemented inside the processor. Also, a simple dead-time compensation method and voltage drop on the semiconductor elements are implemented. The phase voltage of the motor are reconstructed inside the processor using the measured DC-link voltage and duty cycles of PWM for each phases. Motor and PI controller model are given in Appendices. Various tests have been carried out in order to investigate the drive performance and to characterize the steady-state and transient behavior. 138
DSP implementation of DTC-SVM control Control Desk experiment software run on the PC computer provides all function for controlling, monitoring and automation of real-time experiments and makes the development of controllers more effective. A Control Desk experiment layout for control the PMSM machine using DTC-SVM control method is presented in Fig. 7.4. Figure 7.4. Performed Control Desk experimental layout for control of PMSM drive. 139
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POLITECHNIKA WARSZAWSKA WARSAW UNIV
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Contents Table of Contents Chapter
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Introduction Chapter 1 INTRODUCTION
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Introduction to surface-mounted mac
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Introduction vector control, which
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Introduction presented and studied.
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Modeling and control modes of PM sy
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Voltage source PWM inverter for PMS
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Control methods of PM Synchronous m
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Direct Torque Control with Space Ve
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Page 91 and 92: Direct Torque Control with Space Ve
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Page 165 and 166: Summary and closing conclusion Chap
Page 167 and 168: Appendices APPENDICES A1 Rotor and
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Page 173 and 174: Appendices A7 PWM technique - six s
Page 175 and 176: List of symbol List of symbols Symb
Page 177 and 178: References Books and PhD-Thesis 1.
Page 179 and 180: References 39. J.-I. Itoh, N. Nomur
Page 181 and 182: References 74. N. Ertugrul, P. Acar
Page 183 and 184: References 108. D. Świerczyński,
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