Comprehensive Evaluation of Three-Phase AC-AC PWM Converter Systems

135 Pages·2012·9.19 MB·English

11//113356

Comprehensive Evaluation of Three-Phase
AC-AC PWM Converter Systems

J. W. Kolar and T. Friedli
Swiss Federal Institute of Technology (ETH) Zurich
Power Electronic Systems Laboratory
www.pes.ee.ethz.ch
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Outline
► Review of AC-DC-AC Converters
60 Min ► Derivation of Basic MC Topologies

15 Min ►

► MC Dimensioning
50 Min
► Extended MC Topologies
15 Min ►
► Methodology for Converter Comparisons
45 Min
► Comparative Evaluation of AC-AC Converters

15 Min ►

► Multi-Domain Simulator Demonstration (GECKO)
40 Min
► Conclusions / Questions / Discussion
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Classification of Three-Phase AC-AC Converters
■ Converters with DC-link
■ Hybrid Converters
■ Indirect / Direct Matrix Converters
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DC-link AC-AC Converter Topologies
! ! !
► V-BBC
► I-BBC
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Symmetric Three-Phase Mains
Phase Voltages Phase Currents

Instantaneous Power
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All-SiC JFET I-BBC Prototype
► P = 2.9 kVA
out
► f = 200 kHz
S U = 400 V
► 2.4 kVA / liter (42 W/in3) out
► 230 x 80 x 65 mm3
200V/div
5A/div
DC Link Inductor
320 H/6 A
U = 400 V
in
I = 4.3 A
in
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Basic Matrix Converter Topologies
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V-BBC
Voltage Space Vectors
Modulation
DC Link Current
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VSI Space Vector Modulation (1)
- Switching with
Interlock Delay
Output Voltage Reference Value
!
!
23 = 8 Switching States
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VSI Space Vector Modulation (2)
Switching State Sequence
Formation of the Output Voltage
Relative On-times