Electricity: motive power systems – Plural – diverse or diversely controlled electric motors
Patent
1993-06-30
1995-07-11
Ip, Philip
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
318139, 318 52, H02P 540
Patent
active
054324181
ABSTRACT:
The invention concerns a motor system of an electric type vehicle, comprising at least two asynchronous electric motors (M1, M2) supplied in parallel by a central electric supply. This central electric supply is controlled by a control device supplying thereto a first control signal (SCF) determining the value of the supply frequency (FAL) and a second control signal (SCA) determining the value of the supply amplitude (UAL) of the supply voltage. These first and second control signals are regulated essentially in dependence upon a signal (SMI) which is a measurement of the principal supply current (IAL), an instruction signal (SCS) and a signal (SFMX) representing the maximum value of the rotational frequency of the rotors (R2, R2) of said motors.
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Ip Philip
SMH Management Services AG
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