Microcomputer Control of a Current Source DC-DC Converter

A microcomputer-based time optimal control algorithm for a current source dc-dc converter is presented. The optimal control strategy for our system is shown to be bang-bang or maximum effort. The closed-loop bang-bang control was tested on a 22.4-kW energy transfer system. This system was the protot...

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Bibliographic Details
Published inIEEE transactions on industry applications Vol. IA-19; no. 5; pp. 690 - 698
Main Authors Ehsani, Mehrdad, Kustom, Robert L., Fuja, R. E.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.09.1983
Institute of Electrical and Electronics Engineers
Subjects
Applied sciences
Bang-bang control
Bridges
DC-DC power converters
Electrical engineering. Electrical power engineering
Energy exchange
Exact sciences and technology
Laboratories
Microcomputers
Optimal control
Power electronics, power supplies
Prototypes
Superconducting coils
System testing
Digital control
Design
Current source
Operation study
Optimal control
Three phase convertor
Direct current convertor
Static convertor
Bridge convertor
Microcomputer
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Summary:A microcomputer-based time optimal control algorithm for a current source dc-dc converter is presented. The optimal control strategy for our system is shown to be bang-bang or maximum effort. The closed-loop bang-bang control was tested on a 22.4-kW energy transfer system. This system was the prototype of'an inductor-converter bridge (ICB) at Argonne National Laboratory. The ICB is used for bidirectional (two-quadrant) energy transfer between two large superconducting coils. The system test setup and operation is presented in some detail. The test results of the control systein are presented. The difference between the ideal and actual test results is analyzed in terms of accuracy, noise effects, quantization error, and instrumentation dynamic response. The results of this analysis are used for a systematic component specification of a microcomputer based bang-bang control system to achieve a required accuracy.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.1983.4504277