11
Figure 6 Measured and computed negative torque peak magnitude vs reconnection
phase angle. Figure 4 in [9]
Although the general behavior of the results in [8] and [9] agree, the magnitude of the peak
shaft torque in [9] is nearly twice that of the peak shaft torque magnitude in [8]. These are
the only two publications that include experimental torque transient data and [9] did not
directly measure the shaft torque. Instead, the shaft acceleration is measured and the torque
is computed.
Slater, Flynn, and Wood model the experimental behavior they observe in [9] and use the
model to extend the study to a larger motor with three different load inertias. The load inertia
is shown to greatly influence the magnitude of the negative torque peak and the interruption
duration at which the worst peak occurs. These are valuable results, but they are not verified
Summary :
Figure 4 in [9] Although the general behavior of the results in [8] and [9] agree, the magnitude of the peak shaft torque in [9] is nearly twice that of the peak shaft torque magnitude in [8].
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