Title :
Interaction among multiple controls in tap change under load transformers
Author :
Yorino, N. ; Danyoshi, M. ; Kitagawa, M.
Author_Institution :
Dept. of Electr. Eng., Hiroshima Univ., Japan
fDate :
2/1/1997 12:00:00 AM
Abstract :
This paper investigates the dynamic behaviour of tap changing operations in tap change under load (TCUL) transformers. Interactions among multiple TCUL controls cause oscillatory behaviour in tap changing actions, which unnecessarily increases tap operations before they reach equilibrium. Sufficient conditions for stability are derived and features of the phenomena are examined through theoretical analysis as well as through numerical simulation
Keywords :
circuit oscillations; load (electric); numerical analysis; power system stability; power transformers; dynamic behaviour; numerical simulation; oscillatory behaviour; power systems; tap change under load transformers; tap changing operations; voltage stability conditions; Control design; Control systems; Distributed control; Numerical simulation; On load tap changers; Power engineering and energy; Stability; Sufficient conditions; Transformers; Voltage control;
Journal_Title :
Power Systems, IEEE Transactions on
