IMPROVEMENT OF RELIABILITY OF SEMICONDUCTOR CONVERTERS AND ELECTRIC DRIVES OF OXYGEN-STEELMAKING FACILITIES
DOI:
https://doi.org/10.14529/power160209Keywords:
reliability, field regulated reluctance machine, gas exhauster, oxygen-steelmakingAbstract
The paper deals with ways to improve reliability of semiconductor converters and electric drives of
the oxygen-steelmaking facilities. It provides the dependences of reliability of the semiconductor converter –
electric motor system on the power margin. It is proved that redundancy of the semiconductor converter in
the synchronous reactive drive with the pulse-vector control significantly improves reliability of the system.
The authors propose a mathematical model of pulse-vector control of field-regulated reluctance machine.
The results of mathematical modeling the synchronous reactive drive with pulse-vector control are represented.
They confirm the dependence of specific indicators of the electric drive electric on the number of phases.
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