Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Didactic Platform for Power Didactic Platform for Power Electronics TeachingElectronics Teaching
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
• ObjectivesObjectives• IntroductionIntroduction• The Implemented SystemThe Implemented System• Experimental ResultsExperimental Results• ConclusionsConclusions
PresentationPresentation TopicsTopics
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
ObjectiveObjective
• The main objective of this work is to introduce The main objective of this work is to introduce to the Power Electronics Community the results to the Power Electronics Community the results obtained with a successful experience in Power obtained with a successful experience in Power Electronics teaching at Pontifícia Universidade Electronics teaching at Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS.Católica do Rio Grande do Sul - PUCRS.
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
IntroductionIntroduction
• To implement this platform creativity and low cost To implement this platform creativity and low cost components were used. A didactic platform that components were used. A didactic platform that studies inverters and its different modulation studies inverters and its different modulation techniques was obtained, with an extremely low techniques was obtained, with an extremely low cost releasing the use of sophisticated and cost releasing the use of sophisticated and expensive equipments in the assembly of our expensive equipments in the assembly of our laboratories.laboratories.
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
MotivationMotivation
High Cost of Commercial KITs;High Cost of Commercial KITs;
Integration Theory & Practice;Integration Theory & Practice;
To introduce the Students in Power Electronics To introduce the Students in Power Electronics Researches; Researches;
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Studied Inverters Structures:Studied Inverters Structures:
Push-Pull Inverter;Push-Pull Inverter; Half-Bridge Inverter;Half-Bridge Inverter; Full-Bridge Inverter;Full-Bridge Inverter;
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Modulation Techniques:Modulation Techniques:
PWM sinusoidal two levels;PWM sinusoidal two levels; PWM sinusoidal thee levels;PWM sinusoidal thee levels; PWM (chopper);PWM (chopper);
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
SINC.XTAL
3MHz
CI3:D
4081
12
1311
CI3:B
4081
5
64
CI1:B
4069
3 4
+15V
CI5:A
4027
6
3
5 1
2
7
4J
CLK
K Q
Q
S
R
C1
10nF
CI3:C
4081
8
910
GND
CI1:D
4069
98
CI1:E
4069
1110
CI1:C
4069
5 6
SINC.
R1
1k8
CI3:A
4081
1
23
CI:2
4020
10
119754613121415123
CLK
RSTQ1Q4Q5Q6Q7Q8Q9
Q10Q11Q12Q13Q14
R2
1k8
CI5:B
4027
10
13
11 15
14
9
12J
CLK
K Q
Q
S
R
CI1:A
4069
1 2
CI4:A
4071
1
23
66Hz
Oscillator (60 Hz)Oscillator (60 Hz)
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Active Low Active Low Pass Filter Pass Filter
(Sallen-Key)(Sallen-Key)
R5
+
-
R4
R1
+Vo
R3
C2+Vi
R2
C1
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Zero Detector Zero Detector
D2
1N4148
R4
3.3K
D1
1N4007
12
R3
100K
R5
15k
R1
5K6/5W
0
F1
1A
Q1BC6402
3
1
0
AC 127V
SINC.
0
C1
4,7nF
U1
TIL 111
16
2
5
4
R6
10k
+15V
R2
5K6/5W
0
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Triangular Wave GeneratorTriangular Wave Generator
POT2 10k
0
R5
1k5 Triangular Wave
R3
10k
R8
10k
C6
100n
R2
180
+15V
0
R4
10k
+15V
R1
180
POT1 20k
D21
1N4100R6
10k
D22
1N4100
0
+
-
CI2
CA3140
3
26
7
541
R7
10k
-15V
C5
1,5n
-15V
CI1 LM566
1 2 3 45678
R9
10k
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
R16
5k6
R191k5
+15V
R11 10k
R15
10k
R13
10k
-15V
POT3 10k
1 3
2 Q2
+
- CI3:A
LM339
5
42
312
R14
10k
+15V
IN Triangular
IN Senoidal
+15V
+
-
CI3:D
LM339
11
1013
R2010k
CHB
B
D3
+15V
Q1
R171k5
0
A
+
-
CI4
CA31403
26
7
541
R12 10k
1 2
R12 10k
0
D4
R18
10k
CHA
0
Two and Three Levels Two and Three Levels
PWM ModulatorPWM Modulator
Sinusoid
Triangular
Inverter
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Driver CircuitDriver Circuit
J5RCA JACK
1
2
X
D2UF4007
12
C60
100n
U7B
CD4093B
5
6
714
4
C20
470n
Y
C122p
C66
1n
U7C
CD4093B
8
9
714
10
X
J6RCA JACK
1
2
C40
470n
R3
1k
Y
J4RCA JACK
1
2
C4
22p
J3RCA JACK
1
2
U7D
CD4093B
13
12
714
11J2RCA JACK
1
2 D8
1N4148
DriverDead Time
U4
IR2110
14
7
3
4
5
6 9
10
11
13
12
1
2
8
.
HO
VCC
.
VS
VB VDD
HIN
SD
VSS
LIN
LO
COM
.
AR2
22k
R1
22k
U7A
CD4093B
1
2
714
3
IR 2110
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
X
U 7 B
C D 4 0 9 3 B
5
6
7
1 4
4
Y
C 12 2 p
C 6 6
1 n
U 7 C
C D 4 0 9 3 B
8
9
7
1 4
1 0
C 4
2 2 p
J 3R C A J A C K
1
2
U 7 D
C D 4 0 9 3 B
1 3
1 2
7
1 4
1 1J 2R C A J A C K
1
2 D 8
1 N 4 1 4 8
D e a d T im e
R 2
2 2 k
R 1
2 2 k
U 7 A
C D 4 0 9 3 B
1
2
7
1 4
3
IR 2110
Dead Time and Short Circuit ProtectionDead Time and Short Circuit Protection
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Full-Bridge InverterFull-Bridge Inverter
Vdc
R
IRFP 460
2
1
3
L
IRFP 460
2
1
3IRFP 460
2
1
3 IRFP 460
2
1
3
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Output LC FilterOutput LC Filter
L
C
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Implemented SystemImplemented System
DriverDriver
PWM ModulatorPWM ModulatorActive FilterActive Filter
Zero DetectorZero Detector
Power SupplyPower Supply
Crystal OscillatorCrystal Oscillator
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
Experimental ResultsExperimental Results
T
T
TT
1) Ch 1: 50 Volt 2 ms 2) Ch 2: 50 Volt 2 ms
TwoLevel
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
TT
T
T
1) Ch 1: 50 Volt 2 ms 2) Ch 2: 50 Volt 2 ms
Experimental ResultsExperimental Results
ThreeLevel
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
ConclusionsConclusions• In this article a didactic platform to teach Power In this article a didactic platform to teach Power
Electronics was described. This work is inserted Electronics was described. This work is inserted in the context of a solid pedagogic proposal for in the context of a solid pedagogic proposal for the Power Electronics teaching, based on the the Power Electronics teaching, based on the theoretical practical experience mainly in the theoretical practical experience mainly in the field of the inverters and DC drivers. field of the inverters and DC drivers.
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
ConclusionsConclusions• The system now presented is inserted in a wider The system now presented is inserted in a wider
proposal, started with a didactic kit family, elaborated for proposal, started with a didactic kit family, elaborated for the study of rectifiers circuits. After the implementation of the study of rectifiers circuits. After the implementation of these kits an expressive improvement of the learning these kits an expressive improvement of the learning process was observed, obtaining high approval indexes process was observed, obtaining high approval indexes different from what happened when the discipline was different from what happened when the discipline was presented in the traditional way.presented in the traditional way.
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
ConclusionsConclusions• We would like to remark the importance We would like to remark the importance
of the popularization of this kind of work, that of the popularization of this kind of work, that approaches pedagogic aspects and is approaches pedagogic aspects and is concerned with the formation of a new concerned with the formation of a new methodology of teaching the Power methodology of teaching the Power Electronics disciplines.Electronics disciplines.
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
ConclusionsConclusions
• Is important to observe that the work Is important to observe that the work here presented constitutes the second stage of here presented constitutes the second stage of a more ambitious project in which the main a more ambitious project in which the main objective is to develop didactic kits that assists objective is to develop didactic kits that assists the Power Electronics teaching. the Power Electronics teaching.
Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulDepartamento de Engenharia ElétricaDepartamento de Engenharia Elétrica
Fernando Soares dos Reis
ConclusionsConclusions
• The versatility of the platform and the The versatility of the platform and the great economy obtained in relation to the great economy obtained in relation to the available educational kits found on the available educational kits found on the market are additional advantages of the market are additional advantages of the proposed system. proposed system.