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High-efficiency zone moving method based on loss adjustment

A high-efficiency and high-efficiency technology, applied in the field acceleration method control, electric vehicles, control drive, etc., can solve the problems of not being able to effectively move the high-efficiency area of ​​the permanent magnet motor, and the expansion of the high-efficiency area

Active Publication Date: 2018-11-30
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of these methods is that they all achieve the purpose of expanding the high-efficiency zone of the motor by qualitatively reducing the loss, and cannot effectively move the high-efficiency zone of the permanent magnet motor.

Method used

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  • High-efficiency zone moving method based on loss adjustment
  • High-efficiency zone moving method based on loss adjustment
  • High-efficiency zone moving method based on loss adjustment

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Embodiment Construction

[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0072] Step 1, determine the conditions to be satisfied in the high efficiency zone of the target motor in the constant torque zone; the conditions to be satisfied in the high efficiency zone in the step 1 in the constant torque zone are:

[0073] P Vertical =P copp -(P iron +P PM )≈0

[0074] P Horizontal =P copp -(P c +P E +P PM )≈0

[0075] When P vertical When >0, the efficiency of this point is greater than that of the upper point; when P vertical When Horizontal When >0, the efficiency of this point is greater than that of the left point; when P Horizontal When vertical decrease; if you want to move the high efficiency area down, you need to adjust the loss so that P vertical increase; if you want to move the high-efficiency area to the right, you need to ad...

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Abstract

The invention discloses a high-efficiency zone moving method based on loss adjustment. The high-efficiency zone moving method based on loss adjustment specifically comprises the steps of separately adjusting copper loss, separately adjusting permanent magnet eddy current loss and comprehensively adjusting three kinds of losses. The methods can realize moving of the high efficiency zone and improvethe efficiency of a motor. The methods are applicable to various forms of permanent magnet motors such as surface mounted type, surface embedded type and embedded type, and can be used for moving thehigh-efficiency zone to the region corresponding to a given driving operation condition. The permanent magnet synchronous motors can quickly move the high efficiency zone by reasonably adjusting theloss. After loss adjustment, the high-efficiency zone is effectively combined with the driving operation condition of an electric vehicle, so that energy waste is reduced.

Description

technical field [0001] The invention relates to the design of a permanent magnet synchronous motor, in particular to a method for moving a high-efficiency zone of the permanent magnet synchronous motor, and belongs to the technical field of motor manufacturing. Background technique [0002] Nowadays, permanent magnet motors have been widely used. From electric vehicles to wind power generation, permanent magnet motors play a very important role. This is mainly due to several significant advantages of permanent magnet motors, including high torque density, high power density, and high efficiency. The permanent magnet motor uses a permanent magnet with a high magnetic energy product instead of the traditional excitation winding, which not only eliminates the negative impact of the excitation winding, but also simplifies the mechanical structure of the motor, so that the operation reliability of the motor is improved. The corresponding mechanical Losses are also reduced. [0...

Claims

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Application Information

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IPC IPC(8): H02P6/34H02P23/30B60L15/02
CPCB60L15/025H02P6/34H02P23/30Y02T10/64
Inventor 陈前徐高红刘国海赵文祥范洵
Owner JIANGSU UNIV