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Three-stage v-type series-parallel combined magnetic pole adjustable flux motor

A technology of combined magnetic poles and flux motors, applied in the direction of magnetic circuits, synchronous machines, electromechanical devices, etc., can solve the problems of not taking into account the advantages of series-parallel adjustable flux motors, etc., to improve magnetic regulation and reduce magnetizing current pulses , the effect of improving stability

Active Publication Date: 2022-03-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing technology cannot take into account the advantages of the series-parallel adjustable flux motor, and provides a three-stage V-type series-parallel combined magnetic pole adjustable flux motor

Method used

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  • Three-stage v-type series-parallel combined magnetic pole adjustable flux motor
  • Three-stage v-type series-parallel combined magnetic pole adjustable flux motor
  • Three-stage v-type series-parallel combined magnetic pole adjustable flux motor

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specific Embodiment approach 1

[0033] Specific implementation mode one: the following combination Figure 1 to Figure 7 To illustrate this embodiment, the three-stage V-type series-parallel combination magnetic pole adjustable flux motor described in this embodiment includes a stator core 1, an armature winding 2, a rotor core 3 and a rotating shaft 16; the rotor core 3 is fixed on the rotating shaft 16 , and is located inside the stator core 1, and the armature winding 2 is arranged on the stator core 1;

[0034] A V-shaped permanent magnet slot is arranged under each magnetic pole of the rotor core 3. The V-shaped permanent magnet slot is composed of two in-line slots arranged symmetrically. The in-line slot is a three-stage structure, and along the length direction From the outside to the inside, the outer tank body 14, the middle tank body 8 and the inner tank body 15 are sequentially connected to form, and the outer tank body 14 is composed of a No. 1 high-coercivity permanent magnet slot 4 and a No. 1...

specific Embodiment approach 2

[0055] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the layout of two pairs of permanent magnets connected in series with the magnetic circuit is divided into the following two types:

[0056] The first layout method: No. 1 high-coercivity permanent magnet slot 4 and No. 2 high-coercivity permanent magnet slot 10 are close to the inside of the V-shaped permanent magnet slot at the same time, No. 1 low-coercivity permanent magnet slot 6 and No. 2 low-coercivity permanent magnet slot The coercivity permanent magnet groove 12 is close to the outside of the V-shaped permanent magnet groove at the same time;

[0057] The second layout mode: No. 1 high-coercivity permanent magnet slot 4 and No. 2 high-coercivity permanent magnet slot 10 are close to the outside of the V-shaped permanent magnet slot at the same time, No. 1 low-coercivity permanent magnet slot 6 and No. 2 low-coercivity permanent magnet slot The coercivity permanent magnet groove 12 is...

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Abstract

The invention relates to a three-stage V-type series-parallel combination magnetic pole adjustable flux motor, which belongs to the field of permanent magnet motors. The invention aims to solve the problem that the prior art cannot take into account the advantages of the series-parallel adjustable flux motor. In the present invention, a V-shaped permanent magnet slot is arranged under each magnetic pole of the rotor core. The V-shaped permanent magnet slot is composed of two in-line slots symmetrically arranged. The in-line slot is a three-stage structure, and along the length From outside to inside, the outer tank body, the middle tank body and the inner tank body are sequentially connected, and the outer tank body is composed of No. 1 high-coercivity permanent magnet slot and No. 1 low-coercivity permanent magnet slot juxtaposed along the thickness direction The inner tank body is composed of No. 2 high-coercivity permanent magnet slot and No. 2 low-coercivity permanent magnet slot connected in parallel along the thickness direction; the high-coercivity permanent magnet in the high-coercivity permanent magnet slot , place a low-coercivity permanent magnet in the low-coercivity permanent magnet groove.

Description

technical field [0001] The invention relates to a wide speed regulation technology of a permanent magnet motor, which belongs to the field of permanent magnet motors. Background technique [0002] Permanent magnet synchronous motor has become a common drive motor for new energy vehicles due to its advantages of high power density and high efficiency. However, this type of motor has disadvantages such as difficulty in adjusting the permanent magnet magnetic field and low efficiency when the field is weakened. In response to the above problems, scholars have proposed an adjustable flux motor with adjustable permanent magnet field, which can be applied by applying d The shaft charging and demagnetizing current pulses change the magnetization state of the permanent magnet, so as to achieve the purpose of widening the speed regulation range of the motor. Compared with an adjustable flux motor using only one low-coercivity permanent magnet, a motor with a combined pole structure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/276H02K1/24H02K21/02
CPCH02K1/2766H02K1/24H02K21/028H02K2213/03
Inventor 王明峤郑萍佟诚德乔光远梁晓宇刘法亮
Owner HARBIN INST OF TECH
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