Permanent magnet synchronous oil submersible motor
A technology of submersible motor and permanent magnet synchronization, which is applied to synchronous motors with stationary armatures and rotating magnets, magnetic circuits, electrical components, etc. Low efficiency and other issues, to achieve the effect of heat dissipation, improve performance and power factor, and improve service life
Inactive Publication Date: 2018-09-28
AIELEVATOR TIANJIN SCI CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a kind of permanent magnet synchronous submersible motor, to alleviate the low power factor of the submersible motor in the prior art, low motor efficiency and large energy consumption, the frequency converter controlled by the submersible permanent magnet motor and V / F Technical problems that cannot be started directly
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[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is 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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The invention provides a permanent magnet synchronous oil submersible motor, and relates to the technical field of the permanent magnet synchronous oil submersible motor. The permanent magnet synchronous oil submersible motor comprises a stator iron core formed by multiple stator punching sheets in a stacked manner, and a rotor iron core formed by multiple rotor punching sheets in a stacked manner; stator grooves of an odd number are formed in the stator punching sheets; any two phases of coils of an X phase coil, a Y phase coil and a Z phase coil are wound in the stator grooves; rotor groovesare formed in the rotor punching sheets; and permanent magnets are inserted in the rotor grooves. By virtue of the permanent magnet synchronous oil submersible motor, the technical problems of low power factor, low motor efficiency and high energy consumption of the oil submersible motor in the prior art are relieved, and normal start of the oil submersible permanent magnet motor under vector-less control is realized.
Description
technical field [0001] The invention relates to the technical field of permanent magnet synchronous submersible motors, in particular to a permanent magnet synchronous submersible motor. Background technique [0002] The submersible motor is the power machine of the submersible electric pump, which drives the submersible centrifugal pump to absorb underground well fluid. In the prior art, the submersible motor belongs to the AC asynchronous motor, and its structure is basically the same as that of the ordinary asynchronous motor. However, in order to adapt to the special use environment of the submersible electric pump, it also has a special structure, mainly composed of a slender fixed part (stator ) and the rotating part (rotor), the whole shape is like a slender steel pipe, mainly composed of a tubular outer casing, a motor shaft and a cable, the diameter is within the range of 90mm-160mm, and the length is about 6m-12m according to the power level, forming Slender motor...
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IPC IPC(8): H02K5/12H02K21/14H02K1/16H02K1/27
CPCH02K5/12H02K1/165H02K1/2706H02K21/14H02K2213/03
Inventor 吴数王斌
Owner AIELEVATOR TIANJIN SCI CO LTD