Title :
Design Criteria of Commutation Circuit in a DC Chopper
Author :
Revankar, G.N. ; Palsetia, Parvez K.
Author_Institution :
Department of Electrical Engineering, Indian Institute of Technology, Bombay-76, India.
Abstract :
Commutating capacitor voltage and current equations are derived for the commutation period of the main and auxiliary SCRs. The circuit turn-off time is computed as a function of x, where x is the ratio of the maximum load current to be commutated to the peak discharge current of the commutating capacitor. A suitable choice of x is suggested. In addition to the worst case design for L1, L2, and C, a nomograph for the selection of L1, L2, and C is given as a function of x.
Keywords :
Choppers; Equations; Fault location; Helium; Inductors; RLC circuits; Resonance; Switched capacitor circuits; Thyristors; Voltage;
Journal_Title :
Industrial Electronics and Control Instrumentation, IEEE Transactions on
DOI :
10.1109/TIECI.1972.351117
