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Method for transforming structure of variable structure motor

A technology of variable structure and motor, applied in the field of structure transformation of variable structure motor, can solve the problems of motor speed decrease, motor time is too long, structure transformation method is not perfect, etc., so as to avoid sudden increase or sudden drop of motor speed, Avoid the effects of inrush current

Inactive Publication Date: 2014-06-18
MOBILETRON ELECTRONICS +1
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Problems solved by technology

However, although the above method can avoid the generation of large-amplitude surge current, it will cause the motor to not run for too long, which will cause the motor speed to drop.
Therefore, the structure conversion method of the existing variable structure motor is still not perfect, and there is room for improvement

Method used

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  • Method for transforming structure of variable structure motor
  • Method for transforming structure of variable structure motor
  • Method for transforming structure of variable structure motor

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Embodiment Construction

[0065] In order to illustrate the present invention more clearly, preferred embodiments are given together with diagrams in detail as follows.

[0066] see Figure 7 As shown, the variable structure motor 1 of the preferred embodiment of the present invention is a brushless DC motor (Brushless DC motor, BLDCM), and is connected with an inverter 2 (Inverter), and the variable structure motor 1 includes a first Phase coil U, a second phase coil V, a third phase coil W, a first switch S1, a second switch S2, a third switch S3, a fourth switch S4, a fifth switch S5 and a first Six switches S6. in:

[0067] The phase coils U, V, W respectively have a negative terminal and a positive terminal, and each of the switches S1-S6 has a first terminal and a second terminal respectively. The negative end of the first phase coil U is electrically connected to the first end of the first switch S1 and the first end of the sixth switch S6; the positive end of the first phase coil U is connec...

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Abstract

The invention relates to a method for transforming a structure of a variable structure motor. Through switching a plurality of switches on the variable structure motor in sequence, the variable structure motor transforms from a Y joint structure to a delta joint structure or from the delta joint structure to the Y joint structure. Also, the method can prevent a large amplitude surge current from being generated in a process of transformation, and prevent a circumstance that a rotating speed of the motor suddenly increases or suddenly reduces from occurring.

Description

technical field [0001] The present invention is related to motors, and more specifically refers to a structure transformation method for variable structure motors. Background technique [0002] Due to the continuous occurrence of the global energy crisis, which has greatly affected economic development, countries around the world are actively investing in the use of electric energy to replace fuel engines. As a result, the research and development of electric vehicles has received attention again, and some well-known car manufacturers have also begun to sell electric vehicles. However, Electric vehicles are still not popular. The main reason is not only the high price, but also some key technologies that have not been solved, such as insufficient endurance, low efficiency, poor acceleration and poor climbing ability of electric vehicles. [0003] At present, the power motors used in electric vehicles are mainly permanent magnet brushless DC motors (Brushless DC motors, BLDCM...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K29/00H02K3/28H02P6/00H02P25/18
Inventor 蔡明祺王明贤郑铭扬江政毅王士豪邵子昌
Owner MOBILETRON ELECTRONICS
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