Bi-directional matrix converter with reverse start-up

Details Bi-directional matrix converter with reverse start-up Bi-directional matrix converter with reverse start-up

2006-08-01

2006-08-01

Riley, Shawn (Department: 2838)

Electrical transmission or interconnection systems

Superimposed unlike currents

Different frequencies or phase

C318S800000

Reexamination Certificate

active

07084524

ABSTRACT:
A method for operating a matrix converter that includes converting m phases of a generator into alternating voltage with n phases of a load connected to a network, wherein n<m. The n phases of the load are alternatingly connected via a multiple number of controllable bi-directional switches arranged in an (m×n) matrix, whereby n phases of the generator are always connected with the load while (m−n) phases of the generator are not connected with the load. The matrix converter may be used for at least part of the start-up process, in particular for the initial part of the start-up process of the generator reversely operating the matrix converter in cycloconverter mode using power available from the network, wherein the group of m phases of the generator are grouped in corresponding subgroups.

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Thomas H. Barton: “Rectifiers, Cycloconverters, and AC Controllers”, Clarendon Press, Oxford, 1994, pp. 420-479.

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