Ripple control systems

Details Ripple control systems Ripple control systems

1977-07-26

1980-03-18

Hix, L. T.

Electrical transmission or interconnection systems

Superimposed unlike currents

Different frequencies or phase

307 7, 340310R, 307 27, H02J 1300, H04B 356

Patent

active

041941284

ABSTRACT:
A three phase ripple control system for feeding a control signal onto each phase line employs an injection transformer having a primary winding and three secondary windings. A control signal generator is connected in circuit with the primary winding and serves to provide a signal thereto. A respective inductor is connected in series in each phase line and is connected in parallel with a respective one of the secondary windings. The inductors have a value of inductance arranged such that their impedance at line frequency is substantially smaller than the magnetizing impedance of the transformer. The secondary winding thereby introduce a common control signal onto each of the three phase lines.

REFERENCES:
patent: 2300940 (1942-11-01), Lenehan
patent: 4017845 (1977-04-01), Kilian

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