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U.S. Department of Energy
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DIDO CONTROL SYSTEM: AN INVESTIGATION INTO THE USE OF D.C. INJECTION BRAKING OF THE COARSE CONTROL ARM DRIVING MOTOR

Technical Report ·
OSTI ID:4296824
An investigation into the use of d-c infection braking on the induction motors used for driving the coarss control arms in DIDO is reported. The application of d-c injection braking is found to improve the response of the coarse control arms by appreciably reducing the amount of overrum encountered in positioning the arms. The d-c infection braking involves the application of d-c to two of the three phase stator windings, the d-c being applied immediately the a-c input is disconnected. Various values of d-c braking current were used and the results are recorded. Phase-reversal braking has also been tried, and although faster acting, it is less attractive because it involves greater complexity. (auth)
Research Organization:
United Kingdom Atomic Energy Authority. Research Group. Atomic Energy Research Establishment, Harwell, Berks, England
NSA Number:
NSA-13-008231
OSTI ID:
4296824
Report Number(s):
AERE-R/M-222
Country of Publication:
United Kingdom
Language:
English