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Student Number 92323113 Author Chien-Ping Ku(古健平) Author's Email Address No Public. Statistics This thesis had been viewed 3036 times. Download 10 times. Department Mechanical Engineering Year 2004 Semester 2 Degree Master Type of Document Master's Thesis Language English Title Implementation of Interior Permanent Magnet Synchronous Motor Drive System with DSP and FPGA Date of Defense 2005-07-04 Page Count 47 Keyword Drive System Magnet Synchronous Motor Abstract ABSTRACT

The thesis discusses the drive system of Interior Permanent Magnet Synchronous Motors (IPMSM) with encoder. First, compared with the brushless DC motor, and introduced what is IPMSM and its characteristic and mathematical model. The IPMSM is provided with high power density, high efficiency and high acceleration, so it becomes based on the situation of motor with encoder, we perform the estimation of motor parameter and vector control. DSP2407 is employed to achieve vector control and servo control, and make use of FPGA is used to achieve current control and disturbance cancellation. Current control is one of the center frameworks of motor drive system. In order to track current command exactly and reduce phase lag, we use feedforward controller to be one of the controllers in motor drive system. So we need to know the motor parameter, such as resistance and inductance. When encoder was assembled on motor, the encoder was not sure to aim at the electrical angle of motor. So we should calibrate original angle from Z pulse to rotor magnetic pole. In order to simplify the design and reduce the perplexity of hardware, the thesis adopts module design. In operation, FPGA get the current feedback from current sensors and A/D converter, and DSP2407 get position from encoder. DSP2407 could observe and modulate the parameters of FPGA, and all of the parameters could be written in or read out online.Table of Content Contents

LIST OF FIGUREXIII

ABSTRACTXV

CHAPTER 1 INTRODUCTION1

1.1 PMSM AND BLDC1

1.2 ORGANIZATION OF THIS THESIS7

CHAPTER 2 MATHMATICAL MODEL OF IPMSM9

2.1 INTRODUCTION9

2.2 MATHEMATICAL MODEL IN ABC-AXIS FRAME9

2.3 MODEL IN D-Q AXIS FRAME10

CHAPTER 3 PARAMETER ESTIMATION17

3.1 INTRODUCTION17

3.2 WINDING RESISTANCE AND INDUCTANCE17

3.2.1 Stator Resistance17

3.2.2 Stator Flux Linkage17

3.2.3 d-q axis Inductance18

3.3 ROTOR ANGLE AMENDMENT18

CHAPTER 4 HARDWARE AND SOFTWARE STRUCTURE21

4.1 BLOCK OF THE SYSTEM21

4.2 DSP INTRODUCTION21

4.3 FPGA INTRODUCTION23

4.4 DESIGN METHOD OF FPGA25

4.4.1 Interface Block26

4.4.2 Current Control Block28

4.4.3 Decoder Block30

4.5 SOFTWARE STRUCTURE30

CHAPTER 5 EXPERIMENT RESULT32

5.1 EXPERIMENT ENVIRONMENT32

5.2 EXPERIMENT RESULT32

5.2.1 Current Feedback with Filter32

5.2.2 Test and Verify Current Command33

5.2.3 Velocity Command34

5.3 DISCUSSION39

CHAPTER 6 CONCLUSION AND FUTURE WORK40

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92323113.pdf Date of Submission 2005-07-20

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