ABSTRACT:
The high speed motor is effective to
realize downsizing motor in an electric vehicle (EV). Switched Reluctance Motor
(SRM) is possible to the high speed drive because the rotor structure has
simple and robust. However, the vibration and the acoustic noise are large from
the drive principle. Moreover, the conventional complicated current excitation
results in the difficulty of the torque controller design. To overcome these problems,
the vector control has been proposed for SRM drive. However, the vector control
has not been applied to the SRM in the high speed drive. In this paper, the
drive conditions such as switching frequency, bus voltage for driving the SRM
in the high speed region are clarified. It is shown that the proposed SRM can be
driven by the vector control in the high speed region and can realize low
vibration.
KEYWORDS:
1.
Switched reluctance motor
2.
Vector control
3. High speed drive
SOFTWARE: MATLAB/SIMULINK
CONCLUSION:
In
this paper, to apply the vector control to the SRM in the high speed drive, the
20-pole 30-slot SRM driven in 20000rpm which has same electrical angular
frequency for the 8-pole 12- slot SRM driven in 50000rpm was designed and
evaluated. As a result of analysis, the proposed motor satisfied the demand performances
such as torque and output power in the vector control by using the SiC inverter
which has the switching frequency 200kHz. In the experiment, it was clarified
that the proposed SRM can be driven by the vector control at the maximum
rotation speed 20000rpm. That is, it means that the 8-pole 12-slot SRM can be
driven in 50000rpm by the vector control. Finally, it was shown that the vibration
of SRM can be reduced in the high speed region by applying the vector control compared
with that in the conventional single pulse drive.
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