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A method of moving high efficiency region based on loss regulation

A high-efficiency and high-efficiency technology, which is applied to the movement of the high-efficiency area of ​​the permanent magnet synchronous motor and the design field of the permanent-magnet synchronous motor, can solve the problems of the high-efficiency area and the expansion of the high-efficiency area of ​​the permanent magnet motor that cannot be effectively moved, and achieve The effect of saving simulation design time and effort

Active Publication Date: 2021-07-20
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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  • A method of moving high efficiency region based on loss regulation
  • A method of moving high efficiency region based on loss regulation
  • A method of moving high efficiency region based on loss regulation

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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 method for moving a high-efficiency region based on loss adjustment, which specifically includes the methods of separately adjusting copper loss, separately adjusting permanent magnet eddy current loss and comprehensively adjusting three kinds of losses. These methods enable shifting of the high-efficiency region and increase the efficiency of the motor. These methods are applicable to various forms of permanent magnet motors, such as surface-mounted, surface-mounted, and in-line, and can be used to move the high-efficiency region to the region corresponding to a given driving condition. The permanent magnet synchronous motor can quickly move the high efficiency area by adjusting the loss reasonably. After loss adjustment, the high-efficiency zone is effectively combined with the driving conditions of electric vehicles, reducing energy waste.

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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Patent Type & Authority Patents(China)
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