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Multiphase permanent magnet reluctance motor

A reluctance motor and permanent magnet technology, applied in electrical components, electromechanical devices, etc., can solve the problems of low torque density, large motor torque fluctuation, high vibration and noise of switched reluctance motors, and achieve reliability and safety High, high power density, the effect of reducing copper consumption

Active Publication Date: 2019-12-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low torque density, high peak current and high winding copper consumption of the existing switched reluctance motor; the windings of each phase work in the switching state, resulting in large motor torque fluctuations, high vibration and noise, Multi-Phase Permanent Magnet Reluctance Motor

Method used

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specific Embodiment approach 1

[0046] Specific implementation mode one: the following combination figure 1Describe this embodiment, the polyphase permanent magnet reluctance motor described in this embodiment includes a stator and a rotor, an air gap is formed between the stator and the rotor, the stator includes a stator core 1, a stator winding, and permanent magnets 104; the rotor includes a rotor Iron core 2; the rotor core 2 is cylindrical, and a plurality of rotor slots are equally spaced along the circumferential direction on the air-gap side surface of the rotor core 2; the plurality of rotor slots are formed on the air-gap side surface of the rotor core 2 Rotor teeth arranged at equal intervals;

[0047] The stator core 1 is cylindrical, and a plurality of stator slots 102 are equally spaced along the circumferential direction on the air gap side surface of the stator core 1, and a stator slot 2 101 is also opened between two adjacent stator slots 102, 20 stator teeth are formed, the number of ph...

specific Embodiment approach 2

[0053] Specific implementation mode two: the following combination figure 2 Describe this embodiment, the polyphase permanent magnet reluctance motor described in this embodiment includes a stator and a rotor, an air gap is formed between the stator and the rotor, and the stator includes a stator core 1, a stator winding, and a permanent magnet 104;

[0054] The rotor includes a rotor core 2; the rotor core 2 is cylindrical, and a plurality of rotor slots are equally spaced along the circumferential direction on the air gap side surface of the rotor core 2; Rotor teeth arranged at equal intervals are formed on the side surface;

[0055] The stator core 1 is cylindrical, and a plurality of stator slots 102 are equally spaced along the circumferential direction on the air gap side surface of the stator core 1, and a stator slot 2 101 is also opened between two adjacent stator slots 102, 20 stator teeth are formed, the number of phases of the motor is 5 phases; the stator windi...

specific Embodiment approach 3

[0061] Specific implementation mode three: combination image 3 Describe this embodiment, the multiphase permanent magnet reluctance motor of this embodiment includes a stator and a rotor, an air gap is formed between the stator and the rotor, and the stator includes a stator core 1, a stator winding, and a permanent magnet 104;

[0062] The rotor includes a rotor core 2; the rotor core 2 is cylindrical, and a plurality of rotor slots are equally spaced along the circumferential direction on the air gap side surface of the rotor core 2; Rotor teeth arranged at equal intervals are formed on the side surface;

[0063] The stator core 1 is cylindrical, and a plurality of stator slots 102 are equally spaced along the circumferential direction on the air gap side surface of the stator core 1, and a stator slot 2 101 is also opened between two adjacent stator slots 102, 24 stator teeth are formed, the number of phases of the motor is 3 phases; the stator winding is a three-phase wi...

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Abstract

The invention provides a multiphase permanent magnet reluctance motor, relates to the technical field of motors, and in particular relates to the multiphase permanent magnet reluctance motor. The invention solves the problems of low torque density, high peak current and high winding copper consumption of the existing switch reluctance motor, and the problems of large motor torque fluctuation and high vibration and noise, which are caused by the fact that the winding of each phase works in the switching state. According to the multiphase permanent magnet reluctance motor provided by the invention, permanent magnet excitation is introduced on the stator side; windings work in a full electric cycle and generate unidirectional torque, which improves the torque density of the motor; the motor is driven by bipolar current, which improves the winding utilization and reduces the copper consumption of the motor; the motor can be driven by a traditional inverter circuit; the driving system has the advantages of low cost and high practicability; sinusoidalization of winding flux linkage and counter emf is realized; and torque ripple and vibration and noise of the motor are reduced. The invention provides the motor.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to multiphase permanent magnet reluctance motors. Background technique [0002] The traditional switched reluctance motor structure such as Image 6 As shown, the stator and rotor of the motor are salient pole structures, and the windings are concentrated windings with short ends. By sequentially energizing the stator field windings, the stator poles interact with the rotor poles to generate torque. Since there is neither winding nor permanent magnet 104 on the rotor, it is only made of laminated silicon steel sheets, which can withstand high mechanical stress and is suitable for high-speed operation; the cost of the motor is low, the structure is simple, the operation is reliable, and the speed regulation range of high efficiency wide; high starting torque, low starting current; able to adapt to harsh working environments such as high temperature, high humidity, strong vibration, l...

Claims

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Application Information

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IPC IPC(8): H02K29/03
CPCH02K29/03H02K2213/03
Inventor 寇宝泉赵元胜杨小宝
Owner HARBIN INST OF TECH
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