Variable Speed Generators
eBook - PDF

Variable Speed Generators

  1. 580 pages
  2. English
  3. PDF
  4. Available on iOS & Android
eBook - PDF

Variable Speed Generators

About this book

Variable Speed Generators, the second of two volumes in the Electric Generators Handbook, provides extensive coverage of variable speed generators in distributed generation and renewable energy applications around the world. The book delves into the steady state, transients, control, and design of claw-pole-rotor synchronous, induction, permanent-magnet-(PM)-assisted synchronous, and switched reluctance starter alternators for electric hybrid vehicles. It discusses PM synchronous, transverse flux PM, and flux reversal PM generators for low-speed wind and hydro energy conversion. It also explores linear motion alternators for residential and spacecraft applications. Numerous design and control examples illustrate the exposition.

Fully revised and updated to reflect the last decade's worth of progress in the field, this Second Edition adds new sections that:

  • Address the ride-through control of doubly fed induction generators under unbalanced voltage sags
  • Consider the control of stand-alone doubly fed induction generators under unbalanced nonlinear loads
  • Detail a stand-alone squirrel cage induction generator (SCIG) with AC output and a low-rating pulse-width modulated (PWM) converter
  • Present a twin stator winding SCIG with 50 percent rating inverter and diode rectifier, and a dual stator winding induction generator with nested cage rotor
  • Examine interior permanent magnet claw-pole-alternator systems for more vehicle braking energy recuperation, and high power factor Vernier PM generators
  • Depict a PM-assisted reluctance synchronous motor/generator for an electric hybrid vehicle, and a double stator switched reluctance generator with segmented rotor
  • Describe the grid to stand-alone transition motion-sensorless dual-inverter control of permanent magnet synchronous generators with asymmetrical grid voltage sags and harmonics filtering

The promise of renewable, sustainable energy rests on our ability to design innovative power systems that are able to harness energy from a variety of sources. Variable Speed Generators, Second Edition supplies state-of-the-art tools necessary to design, validate, and deploy the right power generation technologies to fulfill tomorrow's complex energy needs.

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9
Wound-Rotor 
Induction 
Generators
1.3 
Steady-State 
Equations
e 
electromagnetic 
force 
(emf) 
self-induced 
by 
the 
stator 
winding, 
with 
the 
rotor 
winding 
open, 
E
1
, 
is 
as 
follows:
E
f
W
K
W
1
1
1
1
10
2
=
p
f
(
)
RMS
(1.20)
K
K
K
W
d
y
1
1
1
=
×
(1.21)
e 
flux 
per 
pole 
ϕ
10
is
f
p
t
10
10
2
=
B
l
g
i
(1.22)
where
l
i
is 
the 
stack 
length
τ
is 
the 
pole 
pitch
B
g
10
is 
the 
airgap 
fundamental 
flux 
density 
peak 
value:
B
F
K
g
K
g
s
C
s
10
0
10
1
=
+
m
(
)
(1.23)
where 
F
s
10
is 
the 
amplitude 
of 
stator 
mmf 
fundamental 
per 
pole
From 
Equation 
1.17, 
with 
ν
= 
1,
F
W
K
I
p
s
W
o
10
1
1
1
3
2
=
p
(1.24)
But 
the 
same 
emf 
E
1
may 
be 
expressed 
as 
follows:
E
L
I
m
1
1
1
1
0
=
×
w
(1.25)
FIGURE 
1.6 
Slip-ring 
wound 
rotor.

Table of contents

  1. Cover
  2. Contents
  3. Preface to the Second Edition
  4. Preface to the First Edition
  5. Author
  6. Chapter 1: Wound-Rotor Induction Generators: Steady State
  7. Chapter 2: Wound-Rotor Induction Generators: Transients and Control
  8. Chapter 3: Wound-Rotor Induction Generators: Design and Testing
  9. Chapter 4: Self-Excited Induction Generators
  10. Chapter 5: Stator-Converter-Controlled Induction Generators
  11. Chapter 6: Automotive Claw-Pole-Rotor Generator Systems
  12. Chapter 7: Induction Starter/Alternators for Electric Hybrid Vehicles
  13. Chapter 8: Permanent-Magnet-Assisted Reluctance Synchronous Starter/Alternators for Electric Hybrid Vehicles
  14. Chapter 9: Switched Reluctance Generators and Their Control
  15. Chapter 10: Permanent Magnet Synchronous Generator Systems
  16. Chapter 11: Transverse Flux and Flux Reversal Permanent Magnet Generator Systems
  17. Chapter 12: Linear Motion Alternators
  18. Back Cover

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Yes, you can access Variable Speed Generators by Ion Boldea in PDF and/or ePUB format, as well as other popular books in Technology & Engineering & Electrical Engineering & Telecommunications. We have over one million books available in our catalogue for you to explore.