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US 7,924,585 B2Granted
Pulse resistor (brake resistor) for a frequency converter in the higher voltage and capacity range
AssigneeSiemens Aktiengesellschaft
InventorRainer Sommer
Life of this patent
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Abstract
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.
Claims8
A pulse resistor for a converter operating in a moderately high voltage and power range, comprising:
- at least two serially connected two-terminal subsystems, said serially connected subsystems having a first terminal connected to a first busbar and a second terminal;
- and
- a substantially ohmic resistance element electrically connected in series with the serially connected subsystems, with a first terminal of the resistance element connected to a second busbar and a second terminal of the resistance element connected to the second terminal of the serially connected subsystems,
- wherein current flow between the first busbar and the second busbar is exclusive through the serially connected subsystems and the resistance element.
1 more element
Dependencies are inferred from the claim text.