HIGH-POWER MOTOR CONTROLLED BY PARALLELLY CONNECTED WINDINGS

• US 20200136455A1
• Filed: 12/31/2019
• Published: 04/30/2020
• Est. Priority Date: 08/25/2017
• Status: Active Grant

• Current Assignee: Bijie Tianyu Power Technology Co., Ltd.
• Original Assignee: Bijie Tianyu Power Technology Co., Ltd.
• Inventors: Yin, Tianming, Wang, Yan
• Granted Patent: US 11,251,671 B2
• Time in Patent Office: Days
• CPC Class Codes: H02K 11/33 Drive circuits, e.g. power electronics H02K11/38 takes precedence
• CPC Class Codes: H02K 17/14 having windings arranged for permitting pole-changing
• CPC Class Codes: H02K 3/28 Layout of windings or of connections between windings windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32
• CPC Class Codes: H02M 1/008 Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators
• CPC Class Codes: H02M 1/0085 Partially controlled bridges
• CPC Class Codes: H02M 7/5387 in a bridge configuration
• CPC Class Codes: H02M 7/5388 with asymmetrical configuration of switches

Abstract

A high-power motor controlled by parallelly connected windings is provided. The motor comprises multi-phase windings. Each phase includes n winding branches and 2n power devices, wherein the n winding branches are connected in parallel with each other, and each winding branch is independently controlled by a power device.

Claims

1. A high-power motor, controlled by parallelly connected windings, comprising windings of a plurality of phases, wherein

the windings of each phase comprise n winding branches and 2n power components;

the n winding branches are connected with each other in parallel; and

each of the n winding branches is controlled by two of the 2n power components independently from other winding branches, wherein the n is an integer greater than or equal to 1.

2. The high-power motor according to claim 1, wherein

when the windings are asymmetrically connected in a half-bridge manner, the plurality of phases comprise m phases, and the windings of each of the m phases comprise a first power component, a sub-winding, and a second power component, wherein the m is an integer greater than 1.

3. The high-power motor according to claim 2, wherein

each of the n winding branches comprises the first power component, the sub-winding, and the second power component;

and

the first power component and the second power component are connected to two ends of the sub-winding, such that the first power component, the sub-winding, and the second power component are connected in series.

4. The high-power motor according to claim 1, wherein

when the windings are connected to form a shape of a triangle, the windings of the plurality of phases are three-phase windings, the three-phase windings are windings of a phase A, windings of a phase B, and windings of a phase C;

and

each winding branch of the phase A, the phase B, and the phase C comprises a first power component, a sub-winding, and a second power component.

5. The high-power motor according to claim 4, wherein

a winding branch of the phase A comprises the first power component of the phase A, the sub-winding of the phase A, and the second power component of the phase A;

a winding branch of the phase B comprises the first power component of the phase B, the sub-winding of the phase B, and the second power component of the phase B; and

a winding branch of the phase C comprises the first power component of the phase C, the sub-winding of the phase C, and the second power component of the phase C;

wherein

a first end of the first power component of the phase A is connected to a positive pole of a power, and a second end of the first power component TA1n of the phase A is connected to a first end of the sub-winding of the phase A, a first end of the sub-winding of the phase C, and a first end of the second power component of the phase A;

a second end of the sub-winding of the phase A is connected to a second end of the first power component of the phase B, a first end of the second power component of the phase B, and a first end of the sub-winding of the phase B, and a second end of the second power component is connected to a ground;

a first end of the first power component of the phase B is connected to the positive pole of the power, and a second end of the first power component of the phase B is connected to the second end of the sub-winding of the phase A, the first end of the second power component of the phase B, and the first end of the sub-winding of the phase B;

a second end of the sub-winding of the phase B is connected to a second end of the first power component of the phase C and a first end of the second power component of the phase C, and a second end of the second power component is connected to the ground; and

a first end of the first power component of the phase C is connected to the positive pole of the power, and the second end of the first power component of the phase C is connected to a second end of the sub-winding of the phase C and the second end of the sub-winding of the phase B, and a second end of the second power component of the phase C is connected to the ground.

6. The high-power motor according to claim 1, wherein

when the windings are connected in a star configuration, the windings of the plurality of phases are three-phase windings, the three-phase windings comprise windings of a phase A, windings of a phase B, and windings of a phase C;

and

each winding branch of the phase A, the phase and the phase C comprises a first power component, a sub-winding, and a second power component.

7. The high-power motor according to claim 6, wherein

a winding branch of the phase A comprises the first power component of the phase A, the sub-winding of the phase A, and the second power component of the phase A,

a winding branch of the phase B comprises the first power component of the phase B, the sub-winding of the phase B, and the second power component of the phase B;

and

a winding branch of the phase C comprises the first power component of the phase C, the sub-winding of the phase C, and the second power component of the phase C;

wherein

a first end of the first power component of the phase A is connected to a positive pole of a power, a second end of the first power component of the phase A is connected to a first end of the sub-winding of the phase A and a first end of the second power component of the phase A, and a second end of the second power component is connected to a ground;

a first end of the first power component of the phase B is connected to the positive pole of the power, a second end of the first power component of the phase B is connected to a first end of the sub-winding of the phase B and a first end of the second power component of the phase B, and a second end of the second power component is connected to the ground; and

a first end of the first power component of the phase C is connected to the positive pole of the power, a second end of the first power component of the phase C is connected to a first end of the sub-winding of the phase C and a first end of the second power component of the phase C, and a second end of the second power component of the phase C is connected to the ground;

wherein

a second end of the sub-winding of the phase A, a second end of the sub-winding of the phase B, and a second end of the sub-winding of the phase C are connected with each other.