Modulation controller, method of controlling and three phase converter system employing the same
AssigneeTyco Electronics Power Systems, Inc.
InventorsMinghua Fu, Zhenxue Xu, George Ulaner
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Abstract
The present invention provides a modulation controller for use with a three phase converter. In one embodiment, the modulation controller includes a three phase modulator configured to provide vector control signals for the three phase converter that generate a common mode voltage. Additionally, the modulation controller also includes a transition modifier coupled to the three phase modulator and configured to provide a shaping function for the vector control signals that extends a transition period of the common mode voltage.
Claims24
A modulation controller for use with a three phase converter, comprising:
- a three phase modulator configured to provide vector control signals for said three phase converter that generate a common mode voltage;
- and
- a transition modifier coupled to said three phase modulator and configured to provide a shaping function for said vector control signals that extends a transition period of said common mode voltage.
A method of controlling a common mode noise for use with a three phase converter, comprising:
- providing vector control signals for said three phase converter that generate a common mode voltage;
- and
- further providing a shaping function for said vector control signals that extends a transition period of said common mode voltage.
A three phase converter system, comprising:
- a three phase bidirectional converter;
- and
- a modulation controller coupled to said three phase bidirectional converter, including:
- a three phase modulator that provides vector control signals for said three phase bidirectional converter and generates a common mode voltage;
- and
- a transition modifier, coupled to said three phase modulator, that provides a shaping function for said vector control signals and extends a transition period of said common mode voltage.
Dependencies are inferred from the claim text.