Rare-earth permanent magnet motor system for looms
A rare-earth permanent magnet motor and rare-earth permanent magnet technology, which is applied in the direction of motor generator/starter, starter of a single synchronous machine, starting device, etc., can solve low work efficiency, low efficiency of power grid, and quality factor of power grid drop and other issues
Pending Publication Date: 2017-06-27
GUANGDONG ESQUEL TEXTILES CO LTD
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Problems solved by technology
When the asynchronous motor is driving the load, it rarely runs at full power, and the general working area is in the light load area, which will cause more than 90% of the running motors to work below 70% of the rated power, and the work efficiency is low
At the same time, the power factor of the asynchronous motor is low, and the motor has to absorb a large amount of reactive current from the power grid, resulting in a large amount of reactive current in the power substation equipment and power generation equipment of the power grid, which in turn reduces the quality factor of the power grid and aggravates the power grid and transformer. At the same time, the reactive current consumes part of the electric energy in the power grid, substation equipment and power generation equipment, resulting in low efficiency of the power grid and affecting the effective use of electric energy
Method used
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[0022] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0023] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...
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The invention discloses a rare-earth permanent magnet motor system for looms. The rare-earth permanent magnet motor system comprises a frequency converter, express and slow contactors, forward and reverse contactors, start and triangle contactors and a rare-earth permanent magnet synchronous motor. The frequency converter is connected with a transmission line, and is connected with the rare-earth permanent magnet synchronous motor through the express and slow contactors, the forward and reverse contactors and the start and triangle contactors. The rare-earth permanent magnet motor system for looms can improve efficiency of electric power and electric network, improve production efficiency and reduce cost.
Description
technical field [0001] The invention relates to the field of auxiliary accessories for textile equipment, in particular to a rare earth permanent magnet motor system for a loom. Background technique [0002] The loom motor system is one of the important auxiliary equipment of the loom, and the main part of the motor system is an asynchronous motor. When the asynchronous motor drives the load, it rarely runs at full power, and the general working area is in the light load area, which will cause more than 90% of the running motors to work below 70% of the rated power, and the work efficiency is low. At the same time, the power factor of the asynchronous motor is low, and the motor has to absorb a large amount of reactive current from the power grid, resulting in a large amount of reactive current in the power substation equipment and power generation equipment of the power grid, which in turn reduces the quality factor of the power grid and aggravates the power grid and transf...
Claims
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IPC IPC(8): H02P6/20H02P6/30H02P1/10H02P1/50
CPCH02P1/10H02P1/50H02P6/20
Inventor 潘世杰赵小兵田柱安李锡波刘志君赵建朗
Owner GUANGDONG ESQUEL TEXTILES CO LTD