Voltage control with feedback utilizing analog and digital contr

Details Voltage control with feedback utilizing analog and digital contr Voltage control with feedback utilizing analog and digital contr

1997-02-24

1999-09-28

Riley, Shawn

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 41, 318811, H02M 324

Patent

active

059598557

ABSTRACT:
An output voltage control apparatus for performing feedback control on an output voltage of an inverter which drives an AC machine. The output voltage control apparatus converts a command value for the output voltage of the inverter into a pulse density using a converter (PDM), and converts a detection value of the output voltage of the inverter into a pulse density using a .DELTA.-.SIGMA. modulation converter. The proportional control ability and integral control ability for the output voltage are realized by digital hardware including an up-counter, a down-counter and a shift circuit.

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Teodorescu, Dan: Die Motorsteuerung von Aufzugsanlagen; In: DE Der Elektromeister, May 1993; H.5, pp. 315-318, (no translation).
Tietze, U. Schenk: Halbleiter-Schaltungstechnik, 4.erw.Aufl., 1978, Springer-Verlag, Berlin, u.a., pp. 641-642, (no translation).

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