Smart electric motor with decoupled multiple windings
AssigneeSafran Eletrical & Power
InventorsOlivier Berry, José Soler, Jérémy Cuenot, Sonia Dhokkar
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Abstract
A smart motor having a permanent magnet synchronous machine and an electronic control unit, the synchronous machine including one or two permanent magnet rotor(s) and at least one six-phase stator per rotor endowed with at least two three-phase assemblies each formed of three windings electrically coupled in a star, the electronic control unit including one control inverter per stator equipped with six independent arms each configured to control one phase of a six-phase stator. The three-phase assemblies are magnetically and electrically decoupled with respect to one another.
Claims20
A smart motor comprising a permanent magnet synchronous machine and an electronic control unit, the synchronous machine including one or two permanent magnet rotor(s) and at least one six-phase stator per rotor endowed with at least two three-phase assemblies each formed of three windings electrically coupled in a star, said electronic control unit including one control inverter per stator equipped with six independent arms each configured to control one phase of the stator, the stator being divided into distinct angular ranges, the number of angular ranges of the stator corresponding to the number of three-phase assemblies of the stator, the angular range extending over an angle corresponding to the result of the division of 360° by the number of three-phase assemblies of the stator,
- wherein said three-phase assemblies are magnetically and electrically decoupled with respect to one another.
A smart motor comprising a permanent magnet synchronous machine and an electronic control unit, the synchronous machine including one or two permanent magnet rotor(s) that include magnets in a Halbach array and at least one six-phase stator per rotor endowed with at least two three-phase assemblies each formed of three windings electrically coupled in a star, said electronic control unit including one control inverter per stator equipped with six independent arms each configured to control one phase of the stator,
- wherein said three-phase assemblies are magnetically and electrically decoupled with respect to one another.
A smart motor comprising a permanent magnet synchronous machine and an electronic control unit, the synchronous machine including one or two permanent magnet rotor(s) and at least one six-phase stator per rotor endowed with at least two three-phase assemblies each formed of three windings electrically coupled in a star, said electronic control unit including one control inverter per stator equipped with six independent arms each configured to control one phase of the stator, the electronic control unit further including:
- a current regulation module configured to regulate the current in each three-phase assembly independently of the other three-phase assembly, and
- a rotor speed regulation module,
- wherein said three-phase assemblies are magnetically and electrically decoupled with respect to one another.
Dependencies are inferred from the claim text.