DocumentCode :
1197095
Title :
Application of Gate Turn-Off Thyristors in 460-V 7.5-250-hp AC Motor Drives
Author :
Paice, Derek A. ; Mattern, Kenneth E.
Author_Institution :
Power Electronics Systems, Power Electronics Laboratory, Electronics Technology Division, Westinghouse Electric Corporation, Research and Development Center
Issue :
4
fYear :
1983
fDate :
7/1/1983 12:00:00 AM
Firstpage :
554
Lastpage :
560
Abstract :
A 7.5-250-hp range of variable-frequency ac motor drives has been under development at the Westinghouse R & D Center since early in 1981. Design and performance details for prototype equipment rated for 10, 20, and 50 hp will be discussed. The drive system comprises a three-phase thyristor controlled ac/dc converter in conjunction with a dc/ac adjustable-frequency inverter using gate turn-off thyristors (GTO´s). The output of the inverter is a six-step voltage wave in the range of 6-120 Hz, suitable for driving three-phase ac induction or synchronous motors. Details of the inverter design, including means to protect the gate turn-off thyristors from output line-to-line or line-to-ground short circuits, will be given special attention.
Keywords :
AC motors; Circuits; Control systems; DC-DC power converters; Inverters; Protection; Prototypes; Synchronous motors; Thyristors; Voltage;
fLanguage :
English
Journal_Title :
Industry Applications, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-9994
Type :
jour
DOI :
10.1109/TIA.1983.4504255
Filename :
4504255
Link To Document :
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