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US 7,466,574 B2Granted
Method for improving the operation of a matrix converter
AssigneeALSTOM Technology Ltd
InventorAlain Lacaze
Life of this patent
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Abstract
A method for operating a matrix converter in which m phases of a generator generating alternating voltage with n phases of a load are alternatingly connected via a multiple number of controllable bi-directional switches arranged in an (m×n) matrix. An improvement of the spectrum of the generated alternating voltage, i.e. of the alternating voltage with n phases is achieved by means of voltages which are added on-line to the converter output or input.
Claims20
A method for operating a matrix converter having an input and an output, comprising:
- generating alternating voltage with n phases of a load using a generator having m phases, wherein n<m;
- alternatingly connecting the m phases of the generator using a plurality of controllable bi-directional switches arranged in an (m×n) matrix;
- and
- adding voltages on-line to one of the input and the output so as to improve a voltage spectrum of the generated alternating voltage.
1 more element
Dependencies are inferred from the claim text.