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US 9,543,812 B2Granted
Multi-phase electric circuit
AssigneeGE Energy Power Conversion Technology Limited
InventorKai Alexander Rothenhagen
Life of this patent
Estimating the term…
Abstract
A multi-phase electric circuit including an electric machine and an inverter, wherein machine encompasses a rotor connected to the inverter via at least two brushes for each phase, wherein each of the brushes of each phase is connected to the inverter via a separate brush line.
Claims10
A multi-phase electric circuit, comprising:
- an electric machine comprising a stator and a rotor, the stator being configured to connect to an electric energy supply grid;
- an inverter configured to connect to the electric energy supply grid;
- the rotor being connected to the inverter via at least two brushes for each phase, and each of the at least two brushes of each phase is connected to the inverter via a separate brush line;
- a multi-phase short-circuiting device connected to the brush lines coupling the rotor to the inverter;
- and
- each of the brush lines being connected to the multi-phase short-circuiting device via a short-circuiting impedance, the impedance being a resistor and an inductor connected in series within the brush line, and wherein the multi-phase short-circuiting device is embodied to short-circuit the phases connected to the multi-phase short-circuiting device.
3 more elements
Dependencies are inferred from the claim text.