ECE 5041 Spring 2013
Homework Set #1
Due Friday Jan 18, 2013 at 5:00 PM
Problem #1
A) Refer to the circuit given below in Fig.1; the parameters and the variables are in per unit
(for simplicity). Maintain the magnitude of the current at 1.0 per unit, whil
THE OHIO STATE UNIVERSITY
ECE5041 Electric
Machines
Homework Set#3 Solution Direct-Current
Machines
Problem #1
A permanent-magnet dc motor has the following parameters:
and
load torque is approximated as
, where
. Calculate the steady-state rotor speed
in
ECE 5041 Spring 2014
Homework Set #1
Due Monday Jan 20, 2014 at 5:00 PM
Problem #1
A) Refer to the circuit given below in Fig.1; the parameters and the variables are in per unit
(for simplicity). Maintain the magnitude of the current at 1.0 per unit, whil
ECE 5041 Spring 2014
Homework Set #2
Due Friday Feb 7th, 2013 at 5:00 PM
Problem #1
Refer to the Fig.1, calculate the following:
A) L11(r)
B) Wf (1, r)
C) Wc(i1, r)
D) Te(i1, r)
E) If I1 = 5 cos 10t A, r = rt+ r (0), express Te(t) in terms of r and r (0)
Electric Machines and Electromechanical Motion Devices
Spring 2013
Objective of the Course: Students in this course will learn the general theory of electric
machines and other electromechanical motion devices relating electric variables and
electromagnet
ECE 5041 Spring 2013
Homework Set #2
Due Friday Feb 1st, 2013 at 5:00 PM
Problem #1
Refer to the Fig.1, calculate the following:
A) L11(r)
B) Wf (1, r)
C) Wc(i1, r)
D) Te(i1, r)
E) If I1 = 5 cos 10t A, r = rt+ r (0), express Te(t) in terms of r and r (0)