Electricity: motive power systems – Positional servo systems – With particular motor control system responsive to the...
Patent
1985-08-01
1986-08-19
Dobeck, B.
Electricity: motive power systems
Positional servo systems
With particular motor control system responsive to the...
318135, 318587, 104292, G05B 1100
Patent
active
046072039
ABSTRACT:
At the rotor of a synchronous linear stator motor, a stray flux measuring device (3', 3") measures the angle .theta. of the stator current distribution .phi. and a speed-measuring device (4) measures a speed containing faults. At the stator, an angle .theta.* for the impressed stator current distribution is taken off and the difference of the two angles (.theta.*-.theta.) indicating the stator current distribution is added as a correction signal to the speed (adder 5), from which the pole position (R) is determined by integration. If the pole position R is used to control the frequency of the stator current thereby, a control loop for the angle difference .theta.*-.theta. is produced which regulates the measured pole position R to the actual pole position.
REFERENCES:
patent: 3904942 (1975-09-01), Holtz
patent: 3914669 (1974-10-01), Holtz
patent: 4013014 (1977-03-01), Holtz
patent: 4238715 (1980-12-01), Parsch et al.
patent: 4505206 (1985-03-01), Gottzein et al.
patent: 4509001 (1985-04-01), Wakabayashi et al.
Achenbach Erhard
Bohm Edgar
Dobeck B.
Siemens Aktiengesellschaft
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