ASHOK KUMAR C U, S THAMARAICHSELVAN Mr. SATISH KUMAR T , Mr. MUSTHAFA P
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April 11, 2023 BE - Electrical and Electronics Engineering 12
Design Formulae Used For Cyclo-Converter
April 11, 2023 BE - Electrical and Electronics Engineering 13
;1
)(Im_.6
)(_.5
cos_.4
tan.3
π2
α)Sin(2
π
α1VV
_.2
;
100)(.1
SO
CLjRZpedenceOutput
Z
VoIocurrentOutput
factorpower
R
X
voltageOutput
ToffTonTT
ToncycleDuty
April 11, 2023 BE - Electrical and Electronics Engineering 14
%501002
1
211)()(
;100)(
1)(
1)(
2,1
DutyCycle
msoffTonTTT
onTDutyCycle
msoffT
msonT
QQFor
H-bridge Series Resonant Inverter Design
Branch 1: For Gate signal using MOSFET
;
DESIGN CALCULATION
Q2 Must be Complement of Q1Q2 Must be Complement of Q1
• Branch 2:
April 11, 2023 BE - Electrical and Electronics Engineering 15
%401002
8.0
22.18.0)()(
;100)(
2.1)(
8.0)(
4,3
DutyCycle
msoffTonTTT
onTDutyCycle
msoffT
msonT
QQFor
Q3 Must be Complement of Q4Q3 Must be Complement of Q4
• Branch 3
April 11, 2023 BE - Electrical and Electronics Engineering 16
%201002
4.0
26.14.0)()(
;100)(
6.1)(
4.0)(
4,3
DutyCycle
msoffTonTTT
onTDutyCycle
msoffT
msonT
QQFor
Q5 Must be Complement of Q6Q5 Must be Complement of Q6
April 11, 2023 BE - Electrical and Electronics Engineering 17
S .No BRANCH NUMBER
BLOCK NAME
DUTY CYCLE(IN %)
DESIGN LOGIC CIRCUIT
1 BRANCH 1 Q1, Q2 50
2 BRANCH 2 Q3, Q4
40
3 BRANCH 3 Q5,Q6
20
LOGIC DESIGN OF H-BRIDGE SERIES RESONANT INVERTER
• RLC circuit Branch
April 11, 2023 BE - Electrical and Electronics Engineering 18
sec/3^10192
6^1045.06^1060
1
;1
;1
tanRe_tan_
_
rad
LC
CL
ceaccapacitivecereacinductive
resonanceAt
• To find Frequency and Time
April 11, 2023 BE - Electrical and Electronics Engineering 19
sec30000
11
302
3^10192
2
foT
Time
KHzfo
frequency
To determine Output Voltage and Current at load
April 11, 2023 BE - Electrical and Electronics Engineering 20
;2)^1
(2^
);1
(
;
:_
1102
)02sin(01110
π2
α)Sin(2
π
α1VV
_
SO
CLRZ
CLjRZ
Z
VoIo
MeasuredCurrent
VVo
voltageOutput
April 11, 2023 BE - Electrical and Electronics Engineering 21
AIoCurrent
Z
Z
C
C
L
L
FCHLR
125.9
110)(
5.9)(
;2)^57.1152.11(2^5.9
;57.111
;6^1045.0502
11
;52.11
;6^1060502
45.0;60;5.9
Design parameters
Inductive Reactance
Capacitive reactance
Impedence
Contd..
To Compute Power Factor
April 11, 2023 BE - Electrical and Electronics Engineering 22
)(1_
1)3015.0cos(cos_
;3015.05.9
05.0tan
5.9
05.057.1152.11
tan
unityfactorpower
factorpower
R
X
R
X
April 11, 2023 BE - Electrical and Electronics Engineering 23
Simulink Design of Proposed Cyclo-Converter Circuit diagram
Simulink Design Model Of Gate Pulse
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Simulation Result Of Input Source
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Simulation Result of DC voltage link
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Output Voltage at 50% duty cycle At RLC load
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SIMULATION RESULT OF GATE PULSE
Output voltage at 40% duty Cycle
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Simulation Result of Current Measured at Duty Cycle 40%
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Overall Simulation Result
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Photographs of Hardware module
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RESULTS:
• OUTPUT VOLTAGE = 110V• RESONANT FREQUENCY = 30kHz• TIME DELAY = 0.03ms• OUTPUT CURRENT = 12 A• POWER FACTOR = 1• Total Harmonic Distortion = 0.24% (by MATLAB)
April 11, 2023 BE - Electrical and Electronics Engineering 33
Applications
• High power low speed AC motor drive
• Metal heat treatment • Thermal treatment process such as forging and
casting• Electromagnetic induction based plasma generation
process• High-speed dissolution process for the new materials
and melting process of semiconductor manufacturing
April 11, 2023 BE - Electrical and Electronics Engineering 34
Future Enhancements
• By using Cycloconverter, we can develop using inverter named as Cyclo-inverter for industrial purpose
• By specifying a multi-output series-resonant high frequency inverter, an inverter is obtained fulfilling the requirements
April 11, 2023 35BE - Electrical and Electronics Engineering
Conclusion
• In this project ,we describes how to design and implement an 3 phase cycloconverter .
• The main objective- To low Frequency AC input into High Frequency AC output
• The main feature of the inverter - reduced switch count and lightweight.
• To overcome -voltage spike and high losses, we are using MOSFET as switching devices.
April 11, 2023 36BE - Electrical and Electronics Engineering
Base Paper Details
• Cyclo-Converter Type High Frequency Link Inverter For High Frequency Application By Zainal Salam, Nge Chee Lim,
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Publication Details
• Paper Published – ICCIAMR 2013 International Conference Vels University , Pallavaram, Chennai
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Literature survey• V.K Mehta and R. Mehta, Principles of Electronics(Multicolor Illustrative
Edition),Copy right-2004,2003,2002, S. Chand and Company Ltd, New Delhi. • M. H. Rashid, Power Electronics Circuits, Devices and Application 6th edition,
Copy right 2009, Prentice Hall, Inc Upper Saddle River, NJ. • A. K. Chattopadhyay, ‘‘Cycloconverters and cycloconverter-fed drives—A
Review.’’ J. Indian Inst. Sci.• T. J. Rao, ‘‘Simplified control electronics for a practical cycloconverter.’’ Int. J.
Electronics• B. R. Pelly, Thyristor Phase-Controlled Converters and Cycloconverters, John
Wiley, New York, 1971• J. Davies and P. Simpson, Induction Heating Handbook. New York McCraw
Hill (U.K.) Limited.• Vineeta Agarwal and Sachin Nema, “Resonant AC to AC”, ISIE, 20-23 June,
2005, Vol.2, Dubrovnik, Croatia,
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Thank you
April 11, 2023 40BE - Electrical and Electronics Engineering