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Apparatus for driving motor of air conditioner and method for driving the same

A technology for motors and air conditioners, used in motor control, torque ripple control, AC motor control, etc.

Inactive Publication Date: 2011-03-30
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Apparatus for driving motor of air conditioner and method for driving the same
  • Apparatus for driving motor of air conditioner and method for driving the same
  • Apparatus for driving motor of air conditioner and method for driving the same

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Embodiment Construction

[0026] Reference will now be made in detail to preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0027] figure 1 is a schematic diagram showing an air conditioner according to an embodiment of the present invention.

[0028] refer to figure 1 , the air conditioner 50 is generally divided into an indoor unit I and an outdoor unit O.

[0029] The outdoor unit O may include: a compressor 2 for compressing refrigerant; a compressor driving unit 2b for driving the compressor 2; an outdoor heat exchanger 4 for dissipating heat from the compressed refrigerant; an outdoor ventilator 5, Including not only the indoor fan 51 arranged on one side of the outdoor heat exchanger 4 to accelerate the heat dissipation of the refrigerant, but also the drive unit 5b for rotating the outdoor fan 5a; the expansion v...

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Abstract

An apparatus and method for driving a motor of an air conditioner are disclosed. A method for driving a motor of an air conditioner includes driving the motor in response to a predetermined speed command, sequentially detecting first and second mechanical angles in response to the speed command or a reference speed being spaced apart from the speed command by a predetermined range, calculating a maximum speed mechanical angle corresponding to a maximum speed ripple of the motor on the basis of the detected first and second mechanical angles, and compensating for load torque of the motor on the basis of the calculated the maximum speed mechanical angle. As a result, the speed ripple is decreased during the constant speed operation.

Description

[0001] Cross References to Related Applications [0002] This application claims Korean Patent Application No. 10-2009-0072863 filed on August 7, 2009, Korean Patent Application No. 10-2009-0072864 filed on August 7, 2009, and Priority of Korean Patent Application No. 10-2009-0072865 filed on Aug. 7, 2009, the disclosure of which is hereby incorporated by reference. technical field [0003] The present invention relates to an apparatus for driving a motor of an air conditioner and a driving method thereof, and more particularly, to an apparatus for driving a motor and a driving method thereof which reduce speed ripple when driving the motor at a constant speed. Background technique [0004] In general, an air conditioner may be arranged in any indoor space or wall of a room, living room, office, store, etc. to adjust temperature, humidity, cleanliness, and flow of indoor air, thereby being able to maintain a comfortable indoor environment in each indoor space. [0005] Gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/06
CPCH02P6/18H02P6/10H02P2203/09H02P21/146H02P21/0042F25B49/025H02P21/26H02P21/18H02P25/098
Inventor 洪暎昊崔阳光金元锡
Owner LG ELECTRONICS INC
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