An armature-controlled dc motor operates at steady state, with an armature drive voltage va = 10 V. The motor runs at 600 rpm, and the armature current is found to be ia = 0.2 A. The armature resistance is Ra = 15 Ω.
Determine:
(a) The torque constant km of the motor
(b) Electrical damping constant be
(c) The efficiency under the given operating conditions, if the mechanical damping constant is bm = 8.25 × 10−5 N ⋅ m/rad/s
(d) The load (torque) TL under the given conditions
Hint: To calculate efficiency, the input power is vaia. The power lost to mechanical dissipation is =
An armature-controlled dc motor operates at steady state, with an armature drive voltage va = 10 ...
otor shown below is controlled by the armature voltage va and load torque ease i ngular velocity w, and ts is the back-emf generated by op a model (first order differential equation) of armature current i in terms velop a model (irst order differential equation) of motor output speed w in terms ta and w as state variables, and va and Ti as inputs, write the state equations the motor. complete the following of motor output speed w and input...
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