Pulse resistor

H - Electricity – 02 – M

Patent

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Details

H02M 7/797 (2006.01) H02P 3/22 (2006.01)

Patent

CA 2620098

The invention relates to a pulse resistor for a frequency converter in the higher voltage and capacity range. The inventive pulse resistor is characterized by comprising at least two bipolar subsystems (24) and a resistor element (14), said subsystems (24) and said resistor element (14) being connected in series. The inventive pulse resistor is devoid of the drawbacks of known pulse resistors, it can be finely controlled by a brake current (iB) and can be adapted to any medium voltage by simple means.

L'invention concerne une résistance à impulsions destinée à un convertisseur dans les plages supérieures de tension et de puissance. Selon l'invention, cette résistance à impulsions présente au moins deux sous-systèmes (24) bipolaires et un élément de résistance (14), ces sous-systèmes (24) et l'élément de résistance (14) étant connectés électriquement en série. Cette configuration permet d'obtenir une résistance à impulsions ne présentant plus les inconvénients d'une résistance à impulsions classique, permettant d'effectuer une régulation fine du courant de freinage (iB) et s'adaptant à n'importe quelle moyenne tension à l'aide de moyens simples.

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