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Integration of Xantrex HY-100 Hybrid Inverter with an AC Induction Wind Turbine Integration of Xantrex HY-100
Hybrid Inverter with an AC
Induction Wind Turbine
May 2003 NREL/TP-500-33445
D. Corbus, C. Newcomb, S. Friedly
National Renewable Energy Laboratory
1617 Cole Boulevard
Golden, Colorado 80401-3393
NREL is a U.S. Department of Energy Laboratory
Operated by Midwest Research Institute
Battelle Bechtel
Contract No. DE-AC36-99-GO10337 National Renewable Energy Laboratory
1617 Cole Boulevard
Golden, Colorado 80401-3393
NREL is a U.S. Department of Energy Laboratory
Operated by Midwest Research Institute
Battelle Bechtel
Contract No. DE-AC36-99-GO10337
May 2003 NREL/TP-500-33445
Integration of Xantrex HY-100
Hybrid Inverter with an AC
Induction Wind Turbine
D. Corbus, C. Newcomb, S. Friedly

Prepared under Task No. IG135000
NOTICE

This report was prepared as an account of work sponsored by an agency of the United States
government. Neither the United States government nor any agency thereof, nor any of their employees,
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constitute or imply its endorsement, recommendation, or favoring by the United States government or any
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1
1.0 Table of Contents
1.0

Table of Contents ................................................................................................................. 1

2.0

Table of Tables ..................................................................................................................... 2

3.0

Table of Figures.................................................................................................................... 2

4.0

Disclaimer............................................................................................................................. 3

5.0

Background of Wind-Diesel Inverters.................................................................................. 3

6.0

Project Approach .................................................................................................................. 3

7.0

Modeling Approach.............................................................................................................. 4

8.0

Inverter Development........................................................................................................... 4

8.1 Inverter Description ............................................................................................................... 4

8.2

Control Algorithms ........................................................................................................... 6

9.0

Testing of the Modified Inverter .......................................................................................... 8

9.1 Hybrid Power Test Bed.......................................................................................................... 8

9.2 Test Procedure ..................................................................................................................... 10

9.3 Functionality Checks ........................................................................................................... 10

9.4 Test Results with AC Source Simulator .............................................................................. 10

9.5 Testing with the AOC 15/50 Wind Turbine ........................................................................ 10

10.0 Summary of Inverter Testing................................................................................................. 11

Appendix A: Xantrex HY-100 Inverter Description ..................................................................... 12

Inverter/Rectifier Bridge............................................................................................................ 12

Generator Interface .................................................................................................................... 12

Battery Charge Controller.......................................................................................................... 12

Operator Interface ...................................................................................................................... 13

Control States............................................................................................................................. 13

Inverter State .......................................................................................................................... 13

Generator Support State ......................................................................................................... 13

Equalize State......................................................................................................................... 13

Generator Only State.............................................................................................................. 14

Blackout State ........................................................................................................................ 14

Inverter/Rectifier Bridge Control............................................................................................... 14

Battery Charge Controller Control............................................................................................. 14

Generator Interface Control ....................................................................................................... 14

Instrumentation .......................................................................................................................... 15

Self-Protection, Fault Detection, and Alarms ............................................................................ 15

Performance Specifications ....................................................................................................... 16

Appendix B: MATLAB Dynamic and Transient Wind-Diesel Models........................................ 17

Appendix C: Inverter Test Results ................................................................................................ 78

Functionality Checks ................................................................................................................. 78

1.1

Test Results with AC Source Simulator ......................................................................... 80

1.1.1. Test: Village Load Step Changes: Adding Load.......................................................... 80

1.1.2 Test: Village Load Step Changes: Decreasing Load..................................................... 81

1.1.3 Test: Wind Turbine Trip Offline: Diesel Generator On............................................... 82

1.1.4 Test: Wind Turbine Trip Offline: Diesel Generator Off .............................................. 83

1.1.5 Test: Battery Charging ................................................................................................. 83

1.1.6 Test: State Transition from Inverter to Charge and from Charge to Inverter............... 85

1.1.7 Test: Transition to Shutdown on Inverter Fault ........................................................... 88

1.2

Testing with the AOC 15/50 Wind Turbine.................................................................... 88

1.2.1 Test: Wind Turbine Startup at High Power with Diesel .............................................. 88

1.2.2 AOC 15/50 Soft Start Mode Start Up ........................................................................... 89

2
Appendix D: A Preliminary Description of Parallel Operation