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vii
TABLE OF CONTENTS
CHAPTER
TITLE
PAGE
DECLARATION
ii
DEDICATION
iii
ACKNOWLEDGEMENTS
iv
ABSTRACT
v
ABSTRAK
vi
TABLE OF CONTENTS
vii
LIST OF TABLES
ix
LIST OF FIGURES
x
LIST OF SYMBOLS
xii
LIST OF ABBREVIATIONS
xiii
1 INTRODUCTION
1.1
Project Background
1
1.2
Objectives
3
1.3
Scope of Works
3
1.4
Methodology
4
1.5
Dissertation Overview
4
2 LITERATURE REVIEW
2.1
Literature Review of dissertation
6
2.2
Matrix Converter
10
2.2.1
Introduction
10
2.2.2
Matrix converter operation principle
12
viii
2.3
3
4
Electro Mechanical Actuator (EMA)
14
2.3.1
Introduction
14
2.3.2
EMA operation concept
15
RESEARCH METHODOLOGY
3.1
Introduction
18
3.2
Classification and advantages of PMSM
18
3.3
Structure design for the PMSM
20
3.4
Vector control theory
23
3.5
Mathematical model for PMSM
27
3.5.1
Dynamic Equation
27
3.5.2
Steady state equation
31
3.5.3
Power and Torque in terms of load angle
34
3.5.4
Maximum Torque Condition
36
3.5.5
Torque control loop
37
DESIGN, RESULTS AND ANALYSIS
4.1
Introduction
39
4.2
Direct Current id design
40
4.3
Quadrature Current iq design
43
4.4
Speed ωm loop design
45
4.5
Analysis on current and speed loop
46
4.6
Adjustment of the gain value for the id, iq
48
and speed loop
4.7
5
Fuzzy Logic Controller
51
CONCLUSION AND SUGGESTION
5.1
Conclusion and recommendation
56
5.2
Suggestion
57
REFERENCES
58
ix
LIST OF TABLES
TABLE NO.
TITLE
PAGE
4.1
Choice of sampling times
39
4.2
Comparison id result between theoretical and simulation
42
result
4.3
Comparison iq result between theoretical and simulation
44
result
4.4
Knowledge base for output single
51
4.5
Linguistic term
52
4.6
Comparison between Trimf & Gaussmf type in fuzzy logic
55
4.7
Comparison between PI controller & fuzzy logic
55
x
LIST OF FIGURES
FIGURE NO.
2.1
TITLE
PAGE
Conventional current regulate torque control strategy
in the rotor reference frame
09
2.2
Basic matrix converter circuit
11
2.3
Simplified basic matrix converter circuit
13
3.2
Classification of AC motor
19
3.3
Structure of surface mounts PMSM
21
3.3(i)
Configuration of rotor design in PMSM
22
3.4
Sum of the vector for three-phase to two phase
24
3.4(i)
Three phase and stationary frame (  )
25
3.4(ii)
Stationary frame (  ) to field oriented frame (d-q)
26
3.5
Synchronous motor schematic and equivalent circuit
27
per phase
3.5(i)
Two poles and two conductor’s synchronous motor
28
schematic
3.5(ii)
Equivalent circuit per phase for quadrature axis
29
3.5(iii)
Equivalent circuit per phase for quadrature axis
30
3.6
Per phase phasor diagram
32
3.7
Torque versus Load angle curve for non-salient machine
35
xi
3.8
Loci current id vsiq for non salient and salient machines
36
respectively
3.9
Maximum torque per current id and iq
37
3.10
Diagram of general arrangement of Torque control
38
4.1
Model for open loop transfer function of id
40
4.2
Model for close loop transfer function of id
41
4.3
Response of the direct current id loop
43
4.4
Model for close loop transfer function of iq
44
4.5
Response of the quadrature current iq loop
44
4.6
Model for close loop transfer function of speed, ωm
45
4.7
Response of the speed ωm loop.
46
4.8
Model for speed loop with PMSM (PI Controller)
47
4.9
Response of the current id, iq and ωm
48
4.10
Response of the current id, iq and ωm with the new k values. 50
4.11
Model for speed loop with PMSM (Fuzzy Logic)
52
4.12(i)
Response of the current id
53
4.12(ii)
Response of the current iq
53
4.12(iii)
Response of the speed ωm
54
4.13(i)
Response of the current id
54
4.13(ii)
Response of the current iq
54
xii
LIST OF SYMBOLS
Lq
-
Quadrature inductance
Ld
-
Direct inductance
θ
-
Angle of the pendulum with respect to vertical axis
TL
-
External load torque
J
-
Motor shaft inertia
D
-
Damping coefficient of viscous friction
ωn
-
Natural frequency
-
Damping ratio
Ki
-
Controller gain
ai
-
Controller zero
xiii
LIST OF ABBREVIATIONS
PMSM
-
Permanent Magnet Synchronous Motor
EMA
-
Electro Mechanical Actuator
DC
-
Direct Current
FLC
-
Fuzzy Logic Controller
PI
-
Proportional Integral
AC
-
Alternating Current
RFO
-
Rotor Flux Oriented
PWM
-
Pulse Width Modulation
SPVM
-
Space Vector Modulation
EMF
-
Electromagnetic Force
EHA
-
Electro-Hydrostatic Actuator
VSI
-
Voltage Source Inverter
IGBT
-
Isolate Gate Bi-polar Transistor
SVM
-
Space Vector Modulation
MEA
-
More Electric Aircraft
CSE
-
Ground Support Equipment
IM
-
Induction Motor
PM
-
Permanent Magnet
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