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Motor drive control apparatus and motor drive control system

一种电动机、无刷电动机的技术，应用在电子换向电动机控制、控制系统、单个电动机转速/转矩控制等方向，能够解决霍尔IC配置不同、控制部算法复杂、很难最佳方法等问题，达到减小变动幅度、抑制转矩脉动、抑制噪音和振动的效果

Inactive Publication Date: 2009-08-26
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the arrangement of Hall ICs in Patent Document 1 is different from the arrangement of Hall ICs in a three-phase brushless DC motor of a general-purpose component
Therefore, in Patent Document 1, a three-phase brushless DC motor with common components cannot be used
[0009] Furthermore, in Patent Document 1, it is necessary to separately create a control unit for controlling the rotation of the rotor using the position detection signals detected by each Hall IC, and the algorithm of the control unit is complicated.
Therefore, from a generality point of view, it is difficult to say that the best method

Method used

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  • Motor drive control apparatus and motor drive control system
  • Motor drive control apparatus and motor drive control system
  • Motor drive control apparatus and motor drive control system

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Embodiment approach

[0063] (1) The structure of the whole and the motor

[0064] figure 1 It is an overall configuration diagram of the motor drive control system 100 including the motor 51 and the motor drive control device 1 for controlling the drive of the motor. Here, examples of the type of motor generally include a DC motor, an AC motor, a stepping motor, a brushless DC motor, and the like. In this embodiment, a brushless DC motor is used.

[0065] The brushless DC motor 51 is, for example, a fan motor used for a fan 61 of an outdoor unit of an air conditioner, and has a stator 52 and a rotor 53 .

[0066] The stator 52 includes star-connected U-phase, V-phase, and W-phase drive coils Lu, Lv, and Lw. One ends of the drive coils Lu, Lv, and Lw of the U-phase, V-phase, and W-phase are respectively connected to the drive coil terminals TU, TV, and TW of the U-phase, V-phase, and W-phase, and the other ends thereof are all connected to the terminal TN. These three-phase drive coils Lu, Lv, ...

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Abstract

The invention provides a motor drive control device and a motor drive control system which, even when two Hall elements are used, can easily control the driving of a 3-phase brushless motor without separately requiring a control unit having a complicated algorithm. A motor drive control device (1) is for controlling the driving of a brushless motor (51) that includes a stator (52) having 3-phase drive coils and a rotor (53) having plural magnetic poles, and the motor drive control device (1) includes Hall elements (2u, 2v), a drive signal determining unit (7) and an output circuit (8). The Hall elements (2u, 2v) are disposed in positions apart from each other by an electric angle of 120 degrees and output position detection signals (Hu, Hv) representing the position of the rotor (53) with respect to the stator (52). The drive signal determining unit (7) determines drive signals (SU, SV, SW) for driving the 3-phase drive coils on the basis of the position detection signals (Hu, Hv). The output circuit (8) generates and outputs, to the 3-phase drive coils, the drive signals (SU, SV, SW) that have been determined by the drive signal determining unit (7).

Description

technical field [0001] The present invention relates to a motor drive control device, particularly a motor drive control device for controlling the drive of a brushless motor comprising a stator having three-phase drive coils, and a motor drive control system using the motor drive control device and a rotor with multiple poles. Background technique [0002] In recent years, in an air conditioner having equipment such as a compressor and a blower fan, a three-phase brushless DC (direct current) motor, for example, is used as a power source for these equipment. [0003] Generally, a three-phase brushless DC motor has a rotor composed of permanent magnets having a plurality of magnetic poles and a stator having three-phase drive coils. A current corresponding to the position of the rotor with respect to the stator flows through the drive coil of such a brushless DC motor by the motor drive control device for controlling the drive of the motor. Accordingly, a magnetic field co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/14H02P6/06H02P6/08
CPCH02P6/14H02P6/165H02P1/16H02P6/17
Inventor 佐藤俊彰畑山敬之板垣哲哉菅俊介
Owner DAIKIN IND LTD
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