Fig. 1. PMSM control block diagram with the proposed resistance estimation scheme.
Fig. 2. Simulink simulation model of the proposed scheme.
Fig. 3. Simulation waveform of d-axis current and corresponding phase currents: (upper) idse, (lower) phase currents.
Fig. 4. Simulation waveform with initial value Rs=1.0Ω: (upper) idse, (lower) estimated stator resistance(Q=1.0, R=0.03).
Fig. 5. Simulation waveform with initial value of Rs=0.01Ω: (upper) idse, (lower) estimated stator resistance(Q=1.0, R=0.03).
Fig. 6. Experimental setup for estimating stator resistance:in-wheel motor and driver.
Fig. 7. Experiment waveform with initial value Rs=1.0Ω: (upper) idse current command, (lower) estimated resistance with Q=1.0 and R=0.03.
Fig 8. Experiment waveform with initial value Rs=0.001Ω: (upper) idse current command, (lower) estimated resistance with Q=1.0, R=0.03.
Fig. 9. Simulation waveform with added noise & low pass filter with initial value of Rs=8.5Ω: (upper) idse, (lower) estimated stator resistance(Q=1.0, R=0.03).
Fig. 10. Simulation waveform applying only low pass filter with initial value of Rs=8.5Ω: (upper) idse, (lower) estimated stator resistance(Q=1.0, R=0.03).
Fig. 11. Simulation waveform without noise and filtering with initial value of Rs=8.5Ω: (upper) idse, (lower) estimated stator resistance(Q=1.0, R=0.03).
Fig. 12. Experiment waveform with initial value Rs=1.0Ω & dead-time of 1.6μsec: (upper) idse current command, (lower) estimated resistance(Q=1, R=0.03).
Fig. 13. Experiment waveform with initial value Rs=1.0Ω & dead-time of 2.5μsec: (upper) idse current command, (lower) estimated resistance(Q=1.0, R=0.03).
TABLE I SPECIFICATION OF PMSM USED FOR SIMULATION
참고문헌
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