Electric motor movement controlling method, an electric...

Details Electric motor movement controlling method, an electric... Electric motor movement controlling method, an electric...

2007-05-01

2007-05-01

Duda, Rina (Department: 2837)

Electricity: motive power systems

Positional servo systems

'reset' systems

C318S632000, C318S254100, C318S132000, C318S434000

Reexamination Certificate

active

10564581

ABSTRACT:
The present invention provides an electric motor movement controlling method, where the electric motor is fed by a total voltage proportional to the network voltage. The method comprises steps of making a first measurement of level of the network voltage at a first moment of measurement and making a second measurement of level of the network voltage; at a second moment of measurement, calculating the value of the derivative of the values of voltage measured in function of the first and second moments of measurement, to obtain a value of a proportional network voltage, and altering the value of the total voltage fed to the motor, proportionally to the value of the proportional network. A system that will implement the steps of the method of the present invention, as well as a compressor comprising the system of the present invention are foreseen.

REFERENCES:
patent: 4300083 (1981-11-01), Heiges
patent: 5216587 (1993-06-01), Miyazaki et al.
patent: 5325037 (1994-06-01), Jeong
patent: 5450521 (1995-09-01), Redlich
patent: 6280147 (2001-08-01), Kilayko et al.
patent: 6285146 (2001-09-01), Harlan
patent: 0 312 686 (1989-04-01), None

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