Method of controlling a stand-alone electrical generator, in particular for aircraft
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United States of America Patent
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Nov 26, 2002
Grant Date -
N/A
app pub date -
Nov 22, 2000
filing date -
Nov 24, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The generator includes an asynchronous machine with a wound rotor driven mechanically and a stator connected to the network. The rotor is excited by a constant DC voltage source via an inverter controlled by a pulse width modulation control circuit. In accordance with the invention, the following are generated: a stator frequency set point, a rotor frequency set point which is a function of the stator frequency set point and the rotation speed of the machine, an rms stator voltage set point, an error signal which is a function of the difference between the rms stator voltage set point and the actual rms stator voltage. A rotor voltage set point is imposed on the control circuit which is a function of the error signal and the rotor frequency set point.
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