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Method for adjusting high-efficiency region of permanent-magnet synchronous motor

A permanent magnet synchronous motor, high-efficiency technology, applied in the direction of synchronous machine, motor, high-speed motor control, etc., can solve the problems of undisclosed high-efficiency area adjustment method, unrealized high-efficiency area large-scale adjustment, etc.

Active Publication Date: 2017-11-10
JIANGSU UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

A general shortcoming of these methods is that the high-efficiency area of ​​the motor is enlarged by reducing the loss, and a slight adjustment of the high-efficiency area is realized, that is, a large adjustment of the high-efficiency area is not realized, and the adjustment of the high-efficiency area is not revealed. method

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  • Method for adjusting high-efficiency region of permanent-magnet synchronous motor
  • Method for adjusting high-efficiency region of permanent-magnet synchronous motor
  • Method for adjusting high-efficiency region of permanent-magnet synchronous motor

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Embodiment Construction

[0120] 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.

[0121] 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.

[0122] like figure 1 As shown, it is a relationship diagram between the midpoint "1" of the constant torque region of the permanent magnet motor and its up, down, right, left, and "2", "3", "4", and "5" in the present invention.

[0123] figure 2 It is the relationship diagram between the middle point "1" and the upper point "2" in the constant torque area in the present invention. According to the positional relationship between the two points in the constant torque area, the connection between the two points is listed as: n 2 =n 1 , I 2 =k 2 I 1 ; Calculate the relationship between t...

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Abstract

The invention discloses a method for adjusting the high-efficiency region of a permanent-magnet synchronous motor. The method specifically comprises the steps of: revealing the internal relationship between a high-efficiency point and a surrounding point, proving the optimal proportion of copper loss, iron loss and permanent-magnet eddy-current loss in the motor when the high-efficiency point moves towards different directions, and thus, summarizing the method for adjusting the high-efficiency region. The method is applied to the permanent-magnet motor in any form; the high-efficiency region can be adjusted to the working point dense region of the motor under different operation working conditions according to design requirements; the high-efficiency region and the operation working condition of an electric automobile can be effectively combined; therefore, the energy consumption is reduced; and the endurance mileage of the electric automobile is increased.

Description

technical field [0001] The invention relates to the design of a permanent magnet synchronous motor, in particular to a method for adjusting the high-efficiency region 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, and they play a very important role in many fields from electric vehicles to ship propulsion. This is mainly due to several significant advantages of permanent magnet motors, including high torque density, high power density, and small weight and volume. The permanent magnet motor adopts the permanent magnet material with high magnetic energy product to replace the traditional excitation winding, which not only eliminates the negative influence brought by the excitation winding, but also simplifies the mechanical structure of the motor, improves the reliability of the motor operation, and reduces the mechanical loss according...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/00
CPCH02K15/00B60L15/2045B60L2220/14B60L2240/421B60L2240/423H02K21/00H02K29/00H02P23/009Y02T10/64Y02T10/72H02K3/28H02K29/03H02K2213/03H02P6/04H02P21/00H02P27/00H02P27/04
Inventor 陈前范洵刘国海赵文祥吉敬华徐高红
Owner JIANGSU UNIV
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