Yonsei University
School of Electrical and Electronic Engineering
EEE57lO—Ol ELECTRIC MACHINE AND CONTROL
Professor: Dr. JungeWook Park
Chapter 1 Introduction
0 Electric machines
0 Energy conversion devices:
Mechanical energy (M.E.)
(Generator)i T(Motor

Yonsei University
School of Electrical and Electronic Engineering
EEE5710-01 ELECTRIC MACHINE AND CONTROL
HW #4-Due: June 1 (Monday)
Total: 20 credits (Only two problems will be selected for
grading)
[1] Solve the Problem 4.9 (in p. 265).
[2] Solve the Pr

4-9. A 430V, 250—kVA, 0.8—PF—lagging two—pole, three—phase, 60—Hz synchronous generator’s prime mover
has a no—load speed of 3650 rr'min and a full—load speed of 3520 rfmin. It is operating in parallel with a
480V, 250—kVA, 0.85—PF—lagging. four—pole (SO—

3-9.
The flux density distribution over the surface of a twovpole stator of radius r and length i is given by
B = 3” cos (mm: — :1] {34M}
Prove that the total flux under each pole face is
.1: = 2:43“
W I B Air-gap ﬂuxtitmsity:
“3"? ! Bth=BM costtu,.,t m
I

Yonsei University
School of Electrical and Electronic Engineering
EEE5710-01 ELECTRIC MACHINE AND CONTROL
HW #3-Due: May 11 (Monday)
Total: 20 credits (Only two problems will be selected for
grading)
[1] Solve the Problem 3.9 (in p. 189).
[2] Solve the Pr

2-].
A IUD-INA. EMINEN-V distribution transformer has the following resistances and reaotanees:
355:1 35=o.oo5t1
Xp=so 35:3.03331
35st XH=1om
The excitation branch impedances are given referred to the high-voltage side of the transfonner.
{a} Find the equ

Yonsei University
School of Electrical and Electronic Engineering
EEE5710-01 ELECTRIC MACHINE AND CONTROL
HW #2-Due: April 6 (Monday)
Total: 30 credits (Only three problems will be selected for
grading)
[1] Solve the Problem 2.1 (in p. 144).
[2] Solve the

Yonsei University
School of Electrical and Electronic Engineering
HW
EEE5710-01 ELECTRIC MACHINE AND CONTROL
#1-Due: March 23(Monday),
Total: 20 credits (Only two problems will be selected for
grading)
[1] Solve the Problem 1.6 (in p. 56).
[2] Solve the

1-6.
A ferromagnetic core with a relative permeability of 1500 is shown in Figure P1—3. The dimensions are
as shown in the diagram, and the depth of the core is S cm. The air gaps on the left and right sides of the
core are {1050 and 0.010 cm, respectivel

Yonsei University
School of Electrical and Electronic Engineering
E335710—01 ELECTRIC MACHINE AND CONTROL
Professor: Dr. Jung7Wook Park
Chapter 4 AC Machine Fundamentals
9 Introduction of AC machines
0 AC machine: Mechanical energy (M.E.)
(G

Yonsei University
School of Electrical and Electronic Engineering
EEE57lO—Ol ELECTRIC MACHINE AND CONTROL
Professor: Dr. JungeWook Park
Chapter 8 DC Machine Fundamentals
0 Definition of DC Machine
0 DC machine has “commutator” (mechanism that co