synchronous generators chuong (5)
synchronous generators chuong (5)
... 2006 by Taylor & Francis Group, LLC
5-2 Synchronous Generators
5.1 Introduction
The previous chapter dealt with the principles of synchronous generators (SGs) and steady state based
on the ... machine (Figure 5.3):
(5.39)
The rotor equations are then added:
FIGURE 5.3 The d–q model of synchronous generators.
I
d
I
D
I
f
V
f
I
Q
V
q
I
q
V
d
ω
r
ω
r
Ψ
Ψ
f
r
fl
r
fm f
r
f...
synchronous generators chuong (1)
... © 2006 by Taylor & Francis Group, LLC
1-10 Synchronous Generators
Variable-speed constant voltage and frequency generators with decoupled active and reactive power
control would ... the solution when pump storage is used and for wind generators above 1 MW per unit.
Will DFIG gradually replace the omnipresent synchronous generators in bulk electric energy conver-
sion? Most ......
synchronous generators chuong (2)
...
induction generators, PM
synchronous generators,
parametric generators (up to
10 MW power/unit)
PM synchronous generators,
cage-rotor induction
generators
IPM synchronous generators,
induction generators, ... & Francis Group, LLC
2-2 Synchronous Generators
FIGURE 2.1 Synchronous generators.
FIGURE 2.2 Induction generators.
FIGURE 2.3 Parametric generators....
synchronous generators chuong (3)
... © 2006 by Taylor & Francis Group, LLC
3-10 Synchronous Generators
3.4 Speed Governors for Steam Turbines
The governor system of a turbine performs ... position
Load
reference
Steam
pressure
Steam
flow
feedback
−
−
w
r
w
∗
r
© 2006 by Taylor & Francis Group, LLC
3-12 Synchronous Generators
More complicated cycles, such as compressor intercooling and reheating or intercooling ......
synchronous generators chuong (4)
... Excitation Magnetic Field 4-8
4.4 The Two-Reaction Principle of Synchronous
Generators
4-12
4.5 The Armature Reaction Field and Synchronous
Reactances
4-14
4.6 Equations for Steady State with ... Stability of
Synchronous Generators
4.11 Unbalanced-Load Steady-State Operation 4-44
4.12 Measuring
X
d
, X
q
, Z
–
, Z
0
4-46
4.13 The Phase-to-Phase Short-Circuit
4-48
4.14 The Sync...
synchronous generators chuong (6)
... power
transformer
Step-down
transformer
Turbine
Synchronous
generator
V
f
I
f
I
g
V
g
V
ref
Exciter AVR
+−
Auxiliary
services
© 2006 by Taylor & Francis Group, LLC
Control of Synchronous Generators in Power Systems ... all control stages, as expected.
FIGURE 6.12 Automatic generation control of one synchronous generator in a two -synchronous- generator isolated
power system.
1/R
1...
synchronous generators chuong (7)
... Group, LLC
7-12 Synchronous Generators
(7.15)
T
GV
for hydrogenerators is in the order of 5 to 8 sec. For turbogenerators, T
GV
and are notably
smaller (<0.1 to 0.15). H for hydrogenerators varies ... 30
3
3
4
© 2006 by Taylor & Francis Group, LLC
7-1
7
Design of Synchronous
Generators
7.1 Introduction 7-2
7.2 Specifying Synchronous Generators for Power
Systems
7-2
The S...
synchronous generators chuong (8)
... by Taylor & Francis Group, LLC
Testing of Synchronous Generators 8-11
speed only, there are generators that also work as motors. Gas-turbine generators with bidirectional static
converters ... Francis Group, LLC
Testing of Synchronous Generators 8-21
8.3.5.3 Zero-Power-Factor Load Test
The SG works as a synchronous motor uncoupled at the shaft, that is, a synchronous conde...
synchronous generators chuong (9)
... of electric generators, with standard and recent art included. The handbook consists of
two volumes:
Synchronous Generators and Variable Speed Generators.
An outline of
Synchronous Generators ... synchronous generators
(SGs) and variable-speed wound rotor induction generators (WRIGs), cage rotor induction
generators (CRIGs), claw pole rotor, induction, permanent magnet (PM)...
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