Air conditioner and harmonic torque compensation method and control method and device of compressor
A harmonic torque and harmonic compensation technology, which is applied in the control of electromechanical transmission, motor generator control, AC motor control, etc., can solve the problems of different tracking effects, vibration of the compressor body, and inability to perfectly track the load torque. , to achieve the effect of improving stability and comfort and reducing vibration
Active Publication Date: 2017-05-10
GUANGDONG MEIZHI COMPRESSOR
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Problems solved by technology
[0002] The compressor in the related air conditioner performs periodic suction and exhaust, the load of the permanent magnet synchronous motor in the compressor fluctuates periodically, the output electromagnetic torque of the permanent magnet synchronous motor control structure cannot perfectly track the load torque, and the load torque is different The tracking effect of order harmonics is different, resulting in speed fluctuations, vibration of the compressor body, and transmission through the pipeline, affecting the stability and comfort of the entire air conditioner
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[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0039] The harmonic torque compensation method of the compressor, the control method of the compressor, the harmonic torque compensation device of the compressor, the compressor control system and the air conditioner proposed by the embodiments of the present invention are described below with reference to the accompanying drawings. Wherein, in some embodiments of the present invention, the compressor may be a single-rotor compressor or a double-rotor compressor.
[0040] figure 1 It is a flowchart of a harmonic torque compensat...
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The invention discloses an air conditioner and a harmonic torque compensation method and control method and device of a compressor. The harmonic torque compensation method comprises the following steps of obtaining a load torque harmonic of the compressor and a motor output electromagnetic torque harmonic of the compressor under any operating condition of the compressor, and determining a harmonic compensation order according to the load torque harmonic and the electromagnetic torque harmonic; obtaining a harmonic frequency corresponding to the harmonic compensation order and determining a harmonic compensation mode according to a frequency interval in which the corresponding harmonic frequency is located; adjusting compensation parameters of the harmonic compensation mode for multiple times according to a default rule and carrying out harmonic torque compensation control on the compressor according to the adjusted compensation parameters in sequence; and determining the final harmonic torque compensation parameters according to the harmonic torque compensation result of the compressor during each operation. Therefore, full-band harmonic torque control of low-order harmonics and high-order harmonics cannot be achieved, and the motor output torque of the compressor better tracks the load torque of the compressor.
Description
technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a compressor harmonic torque compensation method, a compressor control method, a compressor harmonic torque compensation device, a compressor control system and An air conditioner. Background technique [0002] The compressor in the related air conditioner performs periodic suction and exhaust, the load of the permanent magnet synchronous motor in the compressor fluctuates periodically, the output electromagnetic torque of the permanent magnet synchronous motor control structure cannot perfectly track the load torque, and the load torque is different The order harmonic tracking effect is different, resulting in speed fluctuations, vibration of the compressor body, and transmission through the pipeline to affect the stability and comfort of the entire air conditioner. [0003] Therefore, related technologies need to be improved. Contents of the invention [00...
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IPC IPC(8): H02P21/14H02P25/022
CPCH02P21/14H02P25/024
Inventor 刘超丛郑立宇
Owner GUANGDONG MEIZHI COMPRESSOR
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