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A control method of a rare earth permanent magnet motor with multiple rated operating points

A rare-earth permanent magnet motor, rated work technology, applied in the direction of AC motor control, control system, electrical components, etc., can solve the problems of increased current and temperature rise

Active Publication Date: 2017-09-05
福安市蓄发电机有限公司 +2
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overload makes the current increase and the contradiction of temperature rise is prominent

Method used

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  • A control method of a rare earth permanent magnet motor with multiple rated operating points
  • A control method of a rare earth permanent magnet motor with multiple rated operating points
  • A control method of a rare earth permanent magnet motor with multiple rated operating points

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Embodiment Construction

[0020] specific implementation plan

[0021] The present invention will be further elaborated below in conjunction with the working principle scheme diagram of the embodiment.

[0022] Working principle block of embodiment figure 1 The following steps are shown: Step (1) The rated operating point electrical parameters 1, 2, and 3 corresponding to the three sets of independent windings in the low-speed, medium-speed, and high-speed areas of the permanent magnet motor are respectively input through the inner panel 5 of the inverter. In the frequency converter, three independent mathematical model blocks 6, 7, and 8 independently establish three reasonable motor mathematical models; step (2) the acquisition components 14 in the frequency converter are respectively obtained from the winding terminal 11 of the rated working point of the motor , 12, 13 terminals a, b, c points collect the current and voltage values ​​of the corresponding rated operating point of the motor when the ...

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Abstract

A multi-rated operating point rare earth permanent magnet motor and its control, including a rare earth permanent magnet motor and a control method, the rare earth permanent magnet motor and the control method, the rare earth permanent magnet motor is set on a stator with two The above independent windings, the independent terminals, the independent windings have their corresponding independent rated operating points, the independent rated operating points have their independent motor output performance data, and the frequency conversion control The system is a combination of more than two sets of corresponding independent mathematical model boards and a single CPU control chip, which switch and control the same motor respectively.

Description

technical field [0001] The invention relates to a rare earth permanent magnet motor with multiple rated operating points and a control method thereof. Background technique [0002] my country is rich in rare earth materials, accounting for 50-60% of the global total. The application of rare earth permanent magnet motors is becoming more and more extensive. At present, it has been applied in many industries, from aerospace to civilian use. Especially in the application of pure electric vehicles and electric spindle machine tools, it will have great advantages. At present, the frequency conversion control is used to drive the rare earth permanent magnet motor to work, and then the working machine can work according to the working conditions. During the working process, the electrical parameters of the driven motor must be input from the panel to the mathematical model plate in the frequency converter to establish a reasonable motor mathematical model. A motor has only one co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P25/18
Inventor 郭自刚郭晖雷宏浩林珍庄建彬
Owner 福安市蓄发电机有限公司
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