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Self-starting electric control device, single-phase permanent magnet motor and self-starting electric control method

A single-phase permanent magnet motor and electric control device technology, which is applied in the direction of single-phase motor control and starting devices, synchronous motors with stationary armatures and rotating magnets, etc., can solve the problems of easy starting failure of the motor, and achieve reliable High performance, high starting success rate, and the effect of improving the starting success rate

Active Publication Date: 2019-03-05
GUANGDONG WELLING ELECTRIC MACHINE MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The single-phase permanent magnet motor in the related art, especially the single-phase self-starting permanent magnet synchronous motor, has a starting dead point, that is, the position where the d-axis of the rotor coincides with the axis of the main phase winding, causing the motor to fail to start easily.

Method used

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  • Self-starting electric control device, single-phase permanent magnet motor and self-starting electric control method
  • Self-starting electric control device, single-phase permanent magnet motor and self-starting electric control method

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0030] In describing the present invention, it is to be understood that the terms "central", "transverse", "upper", "lower", "inner", "outer", "axial", "radial", "circumferential" ” and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation...

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Abstract

The invention discloses a self-starting electric control device, a single-phase permanent-magnet motor and a self-starting electric control method. The self-starting electric control device comprises a power supply switch, a rectification module and a power supply phase logic judgment module, wherein the power supply switch is connected with a power supply and a main phase winding of the single-phase permanent magnet motor respectively and is connected with a secondary phase winding of the single-phase permanent magnet motor by a running capacitor so as to respectively control whether the power supply provides power for the main phase winding and the secondary phase winding or not, the rectification module is connected between the power supply switch and the secondary phase winding so that a d axis of a rotor of the single-phase permanent magnet motor is coincided with an axial line of the secondary phase winding, the power supply phase logic judgment module is connected with the power supply and communicates with the power supply switch, and when the d axis of the rotor is coincided with the axial line of the secondary phase winding and the power supply phase logic judgment module judges that a power supply phase is matched, the power supply switch controls the power supply to simultaneously supply power to the main phase winding and the secondary phase winding and also disconnect independent power supply to the secondary phase winding. The self-starting electric control device disclosed according to the invention has the advantages of high reliability and high starting success rate.

Description

technical field [0001] The present invention relates to the field of motor technology, in particular to a self-starting electric control device for a single-phase permanent magnet motor, a single-phase permanent magnet motor with the self-starting electric control device for a single-phase permanent magnet motor, and a single-phase permanent magnet motor. Self-starting electric control method of phase permanent magnet motor. Background technique [0002] The single-phase permanent magnet motor in the related art, especially the single-phase self-starting permanent magnet synchronous motor, has a starting dead point, that is, the position where the d-axis of the rotor coincides with the axis of the main phase winding, causing the motor to fail to start easily. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a self-starting electric control devi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/20H02P6/26H02P25/022H02K21/14
CPCH02K21/14H02P6/20
Inventor 王飞陈金涛赵小安
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG
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