ii
TABLE OF CONTENTS
Page
LIST OF FIGURES .............................................................................................................................. iii
LIST OF TABLES................................................................................................................................ iv
ACRONYMS........................................................................................................................................ v
ACKNOWLEDGEMENTS.................................................................................................................. vi
ABSTRACT.......................................................................................................................................... 1
1. INTRODUCTION.......................................................................................................................... 1
1.1 PROGRAM OVERVIEW...................................................................................................... 1
1.2 TESTING FACILITIES......................................................................................................... 2
1.3 SCOPE AND OBJECTIVE.................................................................................................... 2
1.4 APPROACH........................................................................................................................... 3
2. HYBRID ELECTRIC DRIVE SYSTEM DESCRIPTION............................................................ 4
2.1 DESIGN REQUIREMENTS ................................................................................................. 8
2.2 SYSTEM COMPONENTS.................................................................................................... 8
2.2.1 Engine......................................................................................................................... 8
2.2.2 Power Split Device ..................................................................................................... 9
2.2.3 Generator .................................................................................................................... 11
2.2.4 Motor .......................................................................................................................... 12
2.2.5 Inverter........................................................................................................................ 12
2.2.6 Battery......................................................................................................................... 13
3. LABORATORY TESTING........................................................................................................... 14
3.1 ANL VEHICLE LEVEL PERFORMANCE TESTS............................................................. 14
3.1.1 Recent Work and Tests............................................................................................... 14
3.1.2 Future Test Plan.......................................................................................................... 17
3.2 ORNL COMPONENT-LEVEL PERFORMANCE AND VALIDATION TESTS............... 17
3.2.1 Locked Rotor Tests..................................................................................................... 18
3.2.2 Back-emf Tests ........................................................................................................... 21
3.2.2.1 Motor Tests.................................................................................................... 21
3.2.2.2 Generator Tests.............................................................................................. 22
3.2.3 Hybrid Drive System Losses Tests............................................................................. 23
4. INVERTER AND CONVERTER EVALUATION....................................................................... 29
4.1 FUNCTIONAL AND ARCHITECTURE STUDY ............................................................... 29
4.2 CONTROL DEVELOPMENT............................................................................................... 29
4.3 INVERTER MODIFICATIONS AT ANL ............................................................................ 30
5. SUMMARY AND CONCLUSIONS............................................................................................. 31
5.1 FINDINGS AND OBSERVATIONS .................................................................................... 31
5.2 NEEDED RESEARCH AND DEVELOPMENT.................................................................. 33
REFERENCES ..................................................................................................................................... 34
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