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US 11,689,136 B2Granted
Dynamically reconfigurable motors and generators and systems with efficiency optimization
AssigneeQuanten Technologies, Inc.
InventorsHengchun Mao, Xuezhong Jia
Life of this patent
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Abstract
A method includes adjusting currents of a plurality of windings of a motor through a plurality of power converters coupled to the plurality of windings so that the number of poles and the number of phases of the motor are dynamically adjustable, and injecting a plurality of high-order harmonic currents into the plurality of windings of the motor through controlling the plurality of power converters to improve a performance index of the motor.
Claims20
A method comprising:
- configuring a motor with a plurality of windings evenly distributed along a perimeter such that the number of poles of the motor can be adjusted through adjusting currents in the plurality of windings;
- controlling currents of the plurality of windings of the motor through a plurality of power converters coupled to the plurality of windings so that the number of poles and the number of phases of the motor are dynamically adjustable, and a current flowing through a first winding has a first phase, a current flowing through a second winding has a second phase, and a current flowing through a third winding has a third phases, wherein a phase shift between the first winding and the second winding is equal to a phase shift between the second winding and the third winding;
- and
- injecting a plurality of high-order harmonic currents into the plurality of windings of the motor through controlling the plurality of power converters to improve a power capacity of the motor.
1 more element
A system comprising:
- a motor having a plurality of windings evenly distributed along a perimeter and arranged into a plurality of groups, wherein all first terminals of windings in a group are connected to a connection bar, and wherein each second terminal of the windings in the group is coupled to a power converter;
- all power converters coupled to the windings in the group forming a set, wherein the set of power converters is coupled to a power source and is configured to control currents of the group of windings such that a current flowing through a first winding has a first phase, a current flowing through a second winding has a second phase, and a current flowing through a third winding has a third phases, wherein a phase shift between the first winding and the second winding is equal to a phase shift between the second winding and the third winding;
- and
- a controller configured to determine the number of poles and number of phases, and inject a high-order harmonic component into the motor to improve a power capacity.
1 more element
A method comprising:
- configuring a motor drive system with a motor having a plurality of windings coupled to a plurality of power converters, wherein the plurality of windings is distributed evenly along a perimeter and arranged into a plurality of groups and the plurality of power converters is arranged into a plurality of sets, and wherein a first terminal of each winding in a group is coupled to a power converter, and wherein second terminals of all windings in the group are coupled to a connection bar;
- and
- controlling the plurality of power converters such that a current flowing through a first winding has a first phase, a current flowing through a second winding has a second phase, and a current flowing through a third winding has a third phases, wherein a phase shift between the first winding and the second winding is equal to a phase shift between the second winding and the third winding, and a plurality of high-order harmonic currents is injected into the motor to improve a power capacity of the motor drive system.
Dependencies are inferred from the claim text.