Given a PMAC drive with the following characteristics: k_(E)=k_(T)=
2 (mks units), J_(M)=0.03kg*m^(2). The load has a moment of inertia
J_(L)=0.05kg*m^(2). It is required to achieve a speed profile presented
on the right while the load characteristics change as shown.
a) Derive a function that describes the load torque T_(L) in terms
of the motor speed omega _(m). Calculate and plot the load torque,
which corresponds to the given speed profile over a period
of 50s.
b) Calculate and plot the electromagnetic torque (as a
function of time) that would be required to maintain the
specified speed profile over a period of 50s.
2 (mks units), JM = 0.03 kg'm2. The load has a moment of inertia Ji, = 0.05 kg'm2. It is required to achieve a speed profile presented on the right while the load characteristics change as shown. a) Derive a function that describes the load torque T,in terms of the motor speed @m. Calculate and plot the load torque. which corresponds to the given speed profile over a period of50s. b) Calculate and plot the electromagnetic torque (as a function of time) that would be required to maintain the specified speed profile over a period of 50 s.
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