Measuring apparatus for determining the countervoltage of electr

Details Measuring apparatus for determining the countervoltage of electr Measuring apparatus for determining the countervoltage of electr

1987-08-13

1989-03-07

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

318345A, 318345CA, G01R 1900, G01R 1925

Patent

active

048109550

ABSTRACT:
For controlling d-c motors which are supplied with an armature current obtained by phase gating, the bucking voltage induced in the motor is particularly well suited. This voltage is calculated indirectly by a measuring unit which calculates the instantaneous bucking voltage of the d-c machine as a function of the phase gating angle calculated in the preceding computing cycle, the measured current conduction angle, the measured magnitude of the line voltage, the mean armature current value and the armature circuit resistance specific to the machine and the armature circuit inductance specific to the machine.

REFERENCES:
patent: 3593087 (1971-07-01), Pantelakis et al.
patent: 3683252 (1972-08-01), Maynard
patent: 4346434 (1982-08-01), Morinaga
patent: 4749944 (1988-06-01), Okamoto
"A Microprocessor-Controlled Fast-Response Speed Regulator with Dual Mode Current Loop for DCM Drives", by Ohmal et al., IEEE Trans. on Industry Applications, vol. IA-16, #3, 5/80, pp. 388-394.
"A Performance Analysis of Microprocessor-Based Control Systems Applied to Adjustable Speed Motor Drives", by Konishi et al., IEEE Trans. on Ind. Applics, vol. IA-16, #3, 5/80, pp. 378-387.
"Digitale Regelung und Steuerung einer Stromrichter-Gespeisten Gleichstrommaschine mit Mikrorechner", 8129 Regelungstechnik, 30/1/82, pp. 378-387, by Magyar et al.

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