Fig. 1. Conventional current controller(Ts1: Sample time, n = 0, 1, 2, ⋯ : the number of sample)
Fig. 2. Proposed DC-Link current controller(Ts2: the second sample time for DC-Link current)
Fig. 3. Proposed measurement of DC-Link current
Fig. 4. Configuration of proposed current control using DC-Link current
Fig. 5. H/W for proposed DC-Link current controller
Fig. 6. Dead zone: (upper) ± 3e-3 sine command,(lower) ±1e-2 sine command
Fig. 7. Steady state error
Fig. 8. Angular velocity
Fig. 9. Frequency response test
Fig. 10. Results of current control using 150 load
Table 1. 6-step Commutation logic for BLDC motors
Table 2. Normalized system parameters
Table 3. Normalized gains of position and velocity controllers
Table 4. Experimental results(Normalized)
참고문헌
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