I. INTRODUCTION
A. BACKGROUND
B. OBJECTIVE
C. INDUCTION MOTOR OVERVIEW
D. APPROACH
II. OBSERVER OF THE ELECTROMAGNETIC TORQUE
A. DERIVATION OF TORQUE EQUATION
1. Flux Linkage and Voltage Equations in the Arbitrary (qd0) Reference Frame
2. Electromagnetic Torque Equation
B. TORQUE ESTIMATOR IN SIMULINK/MATLAB ENVIROMENT
1. Designing the Torque Estimator
2. Computer Simulation — Analysis of the Results
a. Applying a High Pass Filter after the Integration
b. Placing a Low Pass Filter in the Output of the Torque Estimator
c. Comparing the Two Proposed Solutions
III. COMPUTING THE TORQUE OF A REAL MOTOR
A. HARDWARE DESCRIPTION
1. Four Pole Squirrel Cage Induction Motor
2. Electrodynamometer
3 Field Programmable Gate Array (FPGA )
4. System Interface Box
5. Final Experiment Setup
B. XILINX SOFTWARE ANALYSIS
1. Integration in XILINX Environment
2. Low Pass Filter in XILINX Environment
3. Final Design of the Torque Estimator in XILINX Environment..
4. Implementation of Transformations using XILINX Software
IV. EXPERIMENTAL RESULTS AND ANALYSIS
V. CONCLUSIONS AND SUGGESTIONS
A. CONCLUSIONS
B. SUGGESTIONS FOR FURTHER RESEARCH
APPENDIX: COMPUTER SIMULATION MODEL
LIST OF REFERENCES
INITIAL DISTRIBUTION LIST
