novel three-phase 2/3-modulated buck-boost current source
TRANSCRIPT
1
Novel Three-Phase 2/3-Modulated Buck-BoostCurrent Source Inverter System Employing
Dual-Gate Monolithic Bidirectional GaN e-FETs
International Wide-Bandgap Power Electronics Applications Workshop
14th May 2019
M. Guacci, M. Tatic, Dr. D. Bortis, Prof. Dr. J.W. KolarETH Zurich, Zurich, Switzerland
Power Electronic Systems Laboratory
Y. Kinoshita, Dr. H. IshidaPanasonic Corporation, Osaka, JapanEnergy Solution Development Center
Industrial Solution Company
2
ETH, Zurich, Switzerland - 7th February 1854
Facts & Figures
509 Professors5800 Staff Members4500 Ph.D. Students14500 M.Sc. & B.Sc. Students
► Main Campus, Zurich City Center
2 Campuses16 Departments - D-ITET136 Laboratories - PES
3
Power Electronic Systems Laboratory
► Organizational Diagram
DC-ACConverter
Johann W. Kolar
AC-DC Converter
M. HellerD. Menzi
D. NeumayrJ. Schäfer
DC-DC Converter
P. BezerraT. Guillod
G. Knabben
Industry RelationsR. Coccia / B. Seiler
AC-ACConverter
J. AzurzaP. Czyz
Multi-DomainModeling
AdvancedMechatronics
SecretariatM. Kohn / Y. Schnyder
AdministrationP. Maurantonio
Computer SystemsM. Eisenstat
Electronics LaboratoryP. Seitz
F. Krismer
Magnetic Levitation
MeasurementTechnology
D. Bortis
Th. HolensteinP. Püntener
S. Miric
M. AntivachisJ. BöhlerM. GuacciM. Haider
P. Papamanolis
Adv. Mechatronic SystemsD. Bortis
D. BortisD. Bortis F. Krismer
P. Niklaus E. Hubmann
4
Introduction
5
Introduction
Electric Mobility
Hybrid Electric Vehicle (HEV) 50 kWBattery Electric Vehicle (BEV) 200kWAir Taxi 400kWMore Electric Aircraft (MEA) 2 MWMore Electric Engine (MEE) 20 MW
Airbus, Siemens, Rolls-Royce: E-FaN Xwww.airbus.com
Tesla Motors: Model 3www.tesla.com
On-Board DC/AC Conversion
Energy StoragePower Electronics
Electric Machine
Power Electronics Requirements
Efficiency > 98 - 99%Power Density > 5 - 15kW/kg
6
Outline
► Introduction
► Voltage vs. Current DC-Link Inverter► Monolithic Bidirectional Switch► 3-φ Buck-Boost CSI System► Hardware & Measurements
► Outlook
7
Voltage vs. CurrentDC-Link Inverter
Continuous Output VoltageWide Input Voltage RangeBidirectional Power Devices
8
Voltage vs. Current DC-Link Inverter
3-φ Voltage DC-Link Inverter
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Advantages
Simple Circuit TopologyNo Magnetic ComponentsOnly Six Power Semiconductors
9
3-φ Voltage DC-Link Inverter Challenges
Switched Output VoltageWave Propagation & ReflectionPartial Discharge (PDIV)Bearing CurrentsElectro-Magnetic (EMI) Emissions
Advantages
Simple Circuit TopologyNo Magnetic ComponentsOnly Six Power Semiconductors
Voltage vs. Current DC-Link Inverter
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
10
3-φ Voltage DC-Link Inverter Challenges
Switched Output VoltageWave Propagation & ReflectionPartial Discharge (PDIV)Bearing CurrentsElectro-Magnetic (EMI) Emissions External Output Filter Reinforced Insulation Ceramic Bearings Shielded Cables
Advantages
Simple Circuit TopologyNo Magnetic ComponentsOnly Six Power Semiconductors
Voltage vs. Current DC-Link Inverter
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
11
3-φ Voltage DC-Link Inverter Challenges
Switched Output VoltageWave Propagation & ReflectionPartial Discharge (PDIV)Bearing CurrentsElectro-Magnetic (EMI) Emissions External Output Filter
Limited Input Voltage RangeTraction Battery ChargeFuel-Cell Operating PointAdvantages
Simple Circuit TopologyNo Magnetic ComponentsOnly Six Power Semiconductors
Voltage vs. Current DC-Link Inverter
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
12
3-φ Voltage DC-Link Inverter Challenges
Switched Output VoltageWave Propagation & ReflectionPartial Discharge (PDIV)Bearing CurrentsElectro-Magnetic (EMI) Emissions External Output Filter
Limited Input Voltage RangeTraction Battery ChargeFuel-Cell Operating Point Input Boost Stage
Advantages
Simple Circuit TopologyNo Magnetic ComponentsOnly Six Power Semiconductors
Voltage vs. Current DC-Link Inverter
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
13
3-φ Voltage DC-Link Inverter
Voltage vs. Current DC-Link Inverter
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Features
Simple Circuit TopologyContinuous Output VoltageWide Input Voltage Range
14
3-φ Voltage DC-Link Inverter 3-φ Current DC-Link Inverter
Features
Simple Circuit TopologyContinuous Output VoltageWide Input Voltage Range
Voltage vs. Current DC-Link Inverter
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
15
3-φ Voltage DC-Link Inverter 3-φ Current DC-Link Inverter
Features
Simple Circuit TopologyContinuous Output VoltageWide Input Voltage Range
Disadvantages
Inductive DC-LinkBidirectional Power Semiconductors
Voltage vs. Current DC-Link Inverter
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
16
MonolithicBidirectional
Switch
SpecificationsDual-Gate StructureGate Injection Driver
17
Conventional GaN e-FET (1x)
Monolithic Bidirectional Switch
► 650V - 25mΩ
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
18
Conventional GaN e-FET (2x)
Monolithic Bidirectional Switch
► ±650V - 50mΩ
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
19
Conventional GaN e-FET (4x)
Monolithic Bidirectional Switch
► ±650V - 25mΩ
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
20
Monolithic Bidirectional Switch
New GaN e-FET (1x)
Monolithic Bidirectional Switch (MBS)Common Drain - Single Drift LayerDual-Gate (2G)
► ±650V - 25mΩ ► ±600V - 26mΩ
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional GaN e-FET (4x)
21
New GaN e-FET
Monolithic Bidirectional Switch (MBS)Common Drain - Single Drift LayerDual-Gate (2G)
Equivalent Circuit
Monolithic Bidirectional Switch
ON
ON OFF
OFF
► Bidirectional Voltage Blocking► Bidirectional Current Flow
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
22
Equivalent Circuit
Monolithic Bidirectional Switch
ON
ON OFF
OFF
Gate Injection 2G Driver
Gate Driver Features
Separate On-Off PathsConstant Current PathMinimum Component Number
► Bidirectional Voltage Blocking► Bidirectional Current Flow
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
23
3-φ Buck-BoostCurrent Source Inverter
System
Operating PrincipleConventional PWMTwo-Third Modulation (TTM)
24
Operating Principle
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
3-φ Buck-Boost Current Source Inverter (CSI) System
25DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Operating Principle
► Three-State Switches (2x)
3-φ Buck-Boost CSI System Equivalent Circuit
26DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Equivalent CircuitActive States
[ab][ac][ba][bc][ca][cb]
Zero States
[aa][bb][cc]
Operating Principle
► Three-State Switches (2x)
► Space Vector (SV)Diagram
► SV Diagram
27DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
Equivalent Circuit
Operating Principle
► [aa]
► Short-Circuit
Input Voltage
28DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Equivalent CircuitActive States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
Operating Principle
► [ac]
► Rectified Line-to-Line Voltage
Input Voltage
29DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
3-φ Load Current Waveforms
Conventional Pulse-Width Modulation (PWM)
30DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
3-φ Load Current Waveforms
Conventional Pulse-Width Modulation (PWM)
31DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
3-φ Load Current Waveforms
Conventional Pulse-Width Modulation (PWM)
32DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
3-φ Load Current Waveforms
Conventional Pulse-Width Modulation (PWM)
33DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
Conventional Pulse-Width Modulation (PWM)
► Two Active States + One Zero State
3-φ Load Current Waveforms
34DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
Two-Third Modulation (TTM)
3-φ Load Current Waveforms
35DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
Two-Third Modulation (TTM)
► Two Active States
3-φ Load Current Waveforms
36DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional PWM vs. TTM
► Conventional PWM ► TTM
37DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional PWM vs. TTM
Equivalent Circuit
38DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional PWM vs. TTM
Equivalent Circuit
► 2G MB GaN e-FETs
39DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional PWM vs. TTM
Equivalent Circuit 3-φ Line-to-Line Voltage Waveforms
► 2G MB GaN e-FETs
40DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional PWM vs. TTM
Equivalent Circuit 3-φ Line-to-Line Voltage Waveforms
► State Sequence[aa]
[ab]
[ac]
► 2G MB GaN e-FETs
41DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional PWM vs. TTM
Equivalent Circuit 3-φ Line-to-Line Voltage Waveforms
► State Sequence[aa]
[ab]
[ac]
► 2G MB GaN e-FETs
42DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional PWM vs. TTM
Equivalent Circuit Switching Losses
► State Sequence[aa]
[ab]
[ac]
► 2G MB GaN e-FETs
43DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional PWM vs. TTM
Equivalent Circuit Switching Losses
► State Sequence[aa]
[ab]
[ac]
► 2G MB GaN e-FETs
44DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Synergetic Control
Control Structure
45DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Synergetic Control
Control Structure
3-φ Load Waveforms
► Simulated Waveforms
46
Hardware & Measurements
Hardware DesignMulti-Step Commutation StrategyMeasured Waveforms
47
Hardware Design
DC/AC Operating Point
Input Current idc 20AOutput Power Pout 7.5kW
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
3-φ Buck-Boost CSI System
48
3-φ Buck-Boost CSI System 1-φ Half-Bridge
DC/DC Operating Point
Output Current idc 20A
DC/AC Operating Point
Input Current idc 20AOutput Power Pout 7.5kW
Hardware Design
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
49
3-φ Buck-Boost CSI System 1-φ Half-Bridge
DC/DC Operating Point
Output Current idc 20AInput Voltage Vba 400V
DC/AC Operating Point
Input Current idc 20AOutput Power Pout 7.5kW
Output Voltage vout,pk 250Vvout,ll,pk 433V
Hardware Design
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
50
3-φ Buck-Boost CSI System One-Side Module
► Top-View ► Bottom-View
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Hardware Design
51
► Top-View ► Bottom-View
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Hardware Design
3-φ Buck-Boost CSI System One-Side Module
52
► Top-View ► Bottom-View
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Hardware Design
3-φ Buck-Boost CSI System One-Side Module
53
► Top-View ► Bottom-View
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Hardware Design
3-φ Buck-Boost CSI System One-Side Module
54
► Top-View ► Bottom-View
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Hardware Design
3-φ Buck-Boost CSI System One-Side Module
55
► Top-View
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
► 3.5’’ Floppy Disk
Hardware Design
3-φ Buck-Boost CSI System One-Side Module
56
Measurements
1-φ Half-Bridge
DC/DC Operating Point
Input Voltage Vba 400VOutput Current idc 5A
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Measured Waveforms ►
57
1-φ Half-Bridge
DC/DC Operating Point
Input Voltage Vba 400VOutput Current idc 5A
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Measurements
Measured Waveforms ►
58
1-φ Half-Bridge
DC/DC Operating Point
Input Voltage Vba 400VOutput Current idc 5A
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Measurements
Measured Waveforms ►
59
1-φ Half-Bridge
DC/DC Operating Point
Input Voltage Vba 400VOutput Current idc 5A
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Measurements
Measured Waveforms ►
60
1-φ Half-Bridge
DC/DC Operating Point
Input Voltage Vba 400VOutput Current idc 5A
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Measurements
Measured Waveforms ►
61
1-φ Half-Bridge
DC/DC Operating Point
Input Voltage Vba 400VOutput Current idc 5A
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Measurements
Measured Waveforms ►
62
1-φ Half-Bridge
DC/DC Operating Point
Input Voltage Vba 400VOutput Current idc 5A
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Measurements
Measured Waveforms ►
63
Outlook ConclusionFuture Work
64
Conclusion
Inverter:Continuous Output VoltageWide Input Voltage Range
Outlook
► 3-φ Buck-Boost CSI System
65
Outlook
► Multi-Step Commutation Strategy
Conclusion
Inverter:Continuous Output VoltageWide Input Voltage Range
2G MB GaN e-FET:Dual-Gate - Gate InjectionMonolithic BidirectionalSwitching Performance
66
Conclusion
Inverter:Continuous Output VoltageWide Input Voltage Range
2G MB GaN e-FET:Dual-Gate - Gate InjectionMonolithic BidirectionalSwitching Performance
Two-Third Modulation (TTM):Operating PrincipleSynergetic Control-8% Conduction Losses-86% Switching Losses
Outlook
67
Outlook
Future Research
3-φ Buck-Boost CSI System:Optimization
Conclusion
Inverter:Continuous Output VoltageWide Input Voltage Range
2G MB GaN e-FET:Dual-Gate - Gate InjectionMonolithic BidirectionalSwitching Performance
Two-Third Modulation (TTM):Operating PrincipleSynergetic Control-8% Conduction Losses-86% Switching Losses
68
Outlook
Future Research
3-φ Buck-Boost CSI System:OptimizationComplete Design
Conclusion
Inverter:Continuous Output VoltageWide Input Voltage Range
2G MB GaN e-FET:Dual-Gate - Gate InjectionMonolithic BidirectionalSwitching Performance
Two-Third Modulation (TTM):Operating PrincipleSynergetic Control-8% Conduction Losses-86% Switching Losses
69
Outlook
Future Research
3-φ Buck-Boost CSI System:OptimizationComplete Design
Investigate Different Concepts
► Normally-On
Conclusion
Inverter:Continuous Output VoltageWide Input Voltage Range
2G MB GaN e-FET:Dual-Gate - Gate InjectionMonolithic BidirectionalSwitching Performance
Two-Third Modulation (TTM):Operating PrincipleSynergetic Control-8% Conduction Losses-86% Switching Losses
70M. Guacci – [email protected]
M. Guacci, M. Tatic, Dr. D. Bortis, Prof. Dr. J.W. KolarETH Zurich, Zurich, Switzerland
Power Electronic Systems Laboratory
Y. Kinoshita, Dr. H. IshidaPanasonic Corporation, Osaka, JapanEnergy Solution Development Center
Industrial Solution Company
Thank You !
Tack så mycket !
71
Back-Up Slides
72
Monolithic Bidirectional Switch
Datasheet Parameters
Advantages
CostParasitic Output Capacitance CossOn-State Resistance Rss,onFigure of Merit (FoM)Thermal PerformancePackage Size - PCB AreaSwitching Performance
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
New GaN e-FET
Monolithic Bidirectional Switch (MBS)Common Drain - Single Drift LayerDual-Gate (2G)
73
Equivalent Circuit
Monolithic Bidirectional Switch
ON
ON OFF
OFF
Conventional 2G Driver
Gate Driver Features
Separate On-Off Paths
► Bidirectional Voltage Blocking► Bidirectional Current Flow
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
74
Equivalent Circuit
Monolithic Bidirectional Switch
ON
ON OFF
OFF
Gate-Injection 2G Driver
Gate Driver Features
Separate On-Off PathsConstant Current Path
► Bidirectional Voltage Blocking► Bidirectional Current Flow
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
75DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
3-φ Load Current Waveforms
Conventional Pulse-Width Modulation (PWM)
► SV Diagram
76DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Active States
[ab] iph = [+idc, -idc, 0][ac] iph = [+idc, 0, -idc][ba] iph = [-idc, +idc, 0][bc] iph = [0, -idc, +idc][ca] iph = [+idc, 0, -idc][cb] iph = [0, +idc, -idc]
Zero States
[aa] iph = [0, 0, 0][bb] iph = [0, 0, 0][cc] iph = [0, 0, 0]
Two-Third Modulation (TTM)
► SV Diagram
3-φ Load Current Waveforms
77
Conventional PWM vs. TTM (2)
► TTM► Conventional PWM
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
78
Conventional PWM vs. TTM (3)
► TTM► Conventional PWM
DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
79DC-Link: V vs. I 2G MB GaN e-FET 3-φ bB CSI System HW & Measurements
Conventional PWM vs. TTM
Equivalent Circuit 3-φ Line-to-Line Voltage Waveforms
80M. Guacci – [email protected]
M. Guacci, M. Tatic, Dr. D. Bortis, Prof. Dr. J.W. KolarETH Zurich, Zurich, Switzerland
Power Electronic Systems Laboratory
Y. Kinoshita, Dr. H. IshidaPanasonic Corporation, Osaka, JapanEnergy Solution Development Center
Industrial Solution Company
Thank You !
Tack så mycket !