Back to results
US 11,962,256 B2Granted
Method for controlling an electric machine and drive system for a vehicle
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorsJohannes Wende, Robert Nelles, Thomas Hubert
Life of this patent
Estimating the term…
Abstract
A method for controlling an electric machine, in particular a permanent magnet synchronous machine, having a first, in particular three-phase, winding system, which is controlled by a first converter, and having a second, in particular three-phase, winding system, which is controlled by a second converter. The first converter is operated with block commutation and the second converter is operated with pulse width modulation, in particular space vector modulation.
Claims13
A traction drive system for a vehicle comprising:
- a permanent magnet synchronous electric machine including a first winding system and a second winding system,
- a first converter connected to the first winding system,
- a second converter connected to the second winding system, and
- a control device configured to (i) operate the first converter with block commutation and (ii) operate the second converter with pulse width modulation,
- wherein the electric machine comprises a stator having a plurality of slots, each slot having two radial positions in which phase conductors of the first winding system and the second winding system are arranged,
- wherein a first phase conductor of the first winding system is arranged in a different radial position in a first slot than in a second slot, and wherein the first winding system and the second winding system are connected in antiparallel, and
- wherein the first converter and the second converter comprise different semiconductor switches and the semiconductor switches have different switching states.
4 more elements
A traction drive system for a vehicle comprising:
- a permanent magnet synchronous electric machine including a first winding system and a second winding system,
- a first converter connected to the first winding system,
- a second converter connected to the second winding system, and
- a control device configured to (i) operate the first converter with block commutation and (ii) operate the second converter with pulse width modulation,
- wherein the electric machine comprises a stator having a plurality of slots, each slot having two radial positions in which phase conductors of the first winding system and the second winding system are arranged,
- wherein a first phase conductor of the first winding system is arranged in a different radial position in a first slot than in a second slot, wherein the first converter and the second converter are operated in phase, and
- wherein the first converter and the second converter comprise different semiconductor switches and the semiconductor switches have identical switching states.
4 more elements
A traction drive system for a vehicle comprising:
- a permanent magnet synchronous electric machine including a first winding system and a second winding system,
- a first converter connected to the first winding system,
- a second converter connected to the second winding system, and
- a control device configured to (i) operate the first converter with block commutation and (ii) operate the second converter with pulse width modulation,
- wherein the electric machine comprises a stator having a plurality of slots, each slot having two radial positions in which phase conductors of the first winding system and the second winding system are arranged,
- wherein a first phase conductor of the first winding system is arranged in a different radial position in a first slot than in a second slot,
- wherein the first winding system and the second winding system are connected in antiparallel, and
- wherein the first phase conductor of the first winding system and a second phase conductor of the second winding system are controlled in antiphase, such that currents having opposite current directions flow in the first phase conductor and the second phase conductor.
5 more elements
Dependencies are inferred from the claim text.