Description
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TESLA Induction Machine Parameters1
P = 4 number of motor poles (not pole pairs)
Rs = 0.015 stator resistance
Rr = 0.020 rotor resistance
Lm = 0.9 mH mutual inductance
Lls = 0.0668 mH stator leakage inductance
Llr = 0.0668 mH rotor leakage inductance
Ls = Lm + Lls stator inductance
Lr = Lm + Llr rotor inductance
J = 0.005 kg-m2 machine inertia
b = 1.0 x 10-4
N-m
rad
sec
machine damping
Trated = 100 N-m rated machine torque
rated = 0.125 Wb rated machine flux
Ide_rated = 138.9A rated d-axis current
Vbus = 375 V bus voltage
Imax = 350 A maximum motor current
To Do:
1) Simulate the TESLA induction machine using PLECS. Use notation consistent with the
notation from the class notes. Create your own transformation blocks, do not use the PLECS
blocks (because they use different notation then our class notes).
2) Simulate the current regulated induction machine with indirect field-oriented control. Assume
an ideal inverter and perfectly estimated parameters.
a. Implement a synchronous reference frame current regulator
b. Tune the q and d axis regulators for bandwidths of 1 kHz assuming that the parameter
estimates are accurate.
c. Simulate a locked rotor step response for a rated torque command with d-axis current
held constant at its rated value.
d. Simulate a locked rotor 10 Hz, 100 Hz, and 1000 Hz sine wave response for a rated
torque command with d-axis current held constant at its rated value. (A frequency
response sweep is also acceptable).
3) Close a speed loop around the torque loop and demonstrate speed control of the motor.
a. Tune the speed loop for a bandwidth of 50 Hz
b. Simulate sine wave speed commands of 5 Hz and 50 Hz with a 10 rad/sec amplitude.
Note: You can use the SVPWM block in PLECS (make sure to negate the d-axis command to do this).
1 Note: Tesla machine parameters were not available, these parameters are best guess by me.
EE 560 – Electric Machines and Drives
Final Project
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To Hand In:
1) A neatly typed report highlighting the simulation methodology, a discussion of what was
simulated, and the simulation results.
2) The report must include a block diagram of the system being simulated using a commercially
available charting software (i.e. Visio). This must be included and discussed in the main body
of the report. This should not consist of PLECS block diagrams.
3) Plots of the simulation results
4) A discussion of the simulation results from above.
5) Project conclusions
6) An appendix with PLECS model used for the simulation.