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POWER ELECTRONICS AND MOTOR DRIVES -TECHNOLOGY STATUS AND TRENDS TUTORIAL IEEE IECON 2005 RALEIGH, NC November 6 , 2005 2:00 PM – 5:00 PM, Sunday By Dr. Bimal K. Bose, Life Fellow, IEEE Department of Electrical Engineering 309 Ferris Hall The University of Tennessee
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POWER ELECTRONICS AND MOTOR DRIVES -TECHNOLOGY STATUS AND TRENDS TUTORIAL IEEE IECON 2005 RALEIGH, NC November 6 , 2005 2:00 PM – 5:00 PM, Sunday By Dr. Bimal K. Bose, Life Fellow, IEEE Department of Electrical Engineering 309 Ferris Hall The University of Tennessee Knoxville, TN 37996-2100 Tel: (865) 974-8398 Fax: (865) 974-5483 E-mail: bbose@utk.edu (or b.bose@ieee.org) Fig,1
IGBT SCENARIO • FAST EVOLUTION SINCE INTRODUCTION IN 1983 • SIMPLE STRUCTURE – SIMPLE PROCESSING • ASYMMETRIC AND SYMMETRIC BLOCKING DEVICES • “SMART POWER” CAPABILITY • COMMERCIAL DEVICE – 3500 V, 1200 A, • (6.5 kV, 10 kV DEVICE UNDER TEST) • INTELLIGENT POWER MODULES – UP TO 1200V, 800 A (250 HP MOTOR) • SQUARE SOA – ADVANTAGES AND DISADVANTAGES OF SNUBBERLESS • OPERATION • FOURTH GENERATION DEVICE WITH TRENCH GATE (50% LESS DROP) • PWM SWITCHING FREQUENCY – 1.0 kHz (HIGH POWER_ • 1.00 MW AND HIGHER POWER IN 3-LEVEL INVERTER Fig.14
IGCT SCENARIO • RECENTLY INTRODUCED DEVICE BY ABB (1996) • CURRENT-CONTROLLED DEVICE (HARD-DRIVEN GTO WITH • TURN-OFF CURRENT GAIN = 1) • GATE DRIVER IS BUILT ON MODULE • MONOLITHIC ANTI-PARALLEL DIODE • COMMERCIAL DEVICE – 6.5 kV, 4000 A (10 kV UNDER TEST) • ASYMMETRIC OR SYMMETRIC BLOCKING DEVICE • SERIES – PARALLEL OPERRATION POSSIBLE • SNUBBER OR SNUBBERLESS OPERATION • LOWER THAN IGBT CONDUCTION DROP – 1.0 kH FREQUENCY • VERY PROMISING DEVICE FOR HIGH POWER Fig.15
PROGRESSION OF CURRENT-FED CONVERTER SYSTEMS FOR AC DRIVES Fig.20
ADVANCES AND TRENDS IN CONVERTERS • POWER QUALITY AND LAGGING PF PROBLEMS ARE MAKING PHASE- • CONTROLLED CONVERTERS OBSOLETE - PROMOTING PWM TYPE • CONVERTERS ON LINE-SIDE • VOLTAGE-FED CONVERTERS ARE SUPERIOR TO CURRENT-FED • CONVERTERS IN OVERALL FIGURE-OF-MERIT CONSIDERATIONS • DOUBLE-SIDED VOLTAGE-FED GTO/IGBT/IGCT 3-LEVEL PWM CONVERTERS ARE • REPLACING HIGH POWER PHASE-CONTROLLED CYCLOCONVERTERS • MULTI-LEVEL MULTI-STEPPED CONVERTERS WILL BE WIDELY ACCEPTED IN • UTILITY SYSTEM • SPACE VECTOR PWM IS FINDING WIDE ACCEPTANCE • SOFT-SWITCHED CONVERTERS FOR MOTOR DRIVES DO NOT SHOW ANY • FUTURE PROMISE • CONVERTER TECHNOLOGY HAS NEARLY REACHED THE SATURATION • STAGE • FUTURE EMPHASIS WILL BE ON INTEGRATED PACKAGING AND DESIGN • AUTOMATION Fig.27