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Method and device for compensating torque of single-rotor compressor

A single-rotor compressor and torque compensation technology, which is applied in the field of compressors, can solve the problems of not conforming to the law of compressor movement, the performance of the compressor is not optimal, etc., and achieve the effect of reducing vibration and improving performance

Active Publication Date: 2011-10-19
佛山市顺德区和而泰电子科技有限公司
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Problems solved by technology

However, this is inconsistent with the actual working conditions of the compressor and does not conform to the law of movement of the compressor, so that the performance of the compressor does not reach the best state.

Method used

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  • Method and device for compensating torque of single-rotor compressor
  • Method and device for compensating torque of single-rotor compressor
  • Method and device for compensating torque of single-rotor compressor

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Embodiment Construction

[0050] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] The technical solution of the embodiment of the present invention is to obtain the torque compensation angle and compensation amplitude by detecting the evaporation temperature and condensation temperature of the refrigerant in the single-rotor compressor and the temperature of the compressor inlet, and then generate a triangular wave compensation waveform for the single-rotor compressor. Torque compensation, which is more in line with the movement law of the compressor, reduces the vibration of the single-rotor compressor during operation.

[0052] figure 1 It is a schematic cross-sectional view of the single-rotor compressor in the embodiment of the present invention. As shown in the figure, the big circle O in the figure is the cylinder block of the single-rotor compressor, and the small circle B is the roto...

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Abstract

The invention relates to a method and a device for compensating the torque of a single-rotor compressor. A detection module detects the state parameter of a refrigerant in the single-rotor compressor; a collection module obtains the corresponding compensation angle and compensation amplitude by using the state parameter; a waveform generation module generates a triangular wave compensation waveform by using the compensation angle and the compensation amplitude; and an execution module starts the triangular wave compensation waveform to compensate the torque of the single-rotor compressor. By the method and the device for compensating the torque of the single-rotor compressor, the compensation angle and the compensation amplitude are considered in the torque compensation link, and the triangular wave compensation waveform instead of a sine wave compensation waveform is adopted, so that the vibration of the single-rotor compressor during operation is reduced, and the using performance of the compressor is improved.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a single-rotor compressor torque compensation method and device. Background technique [0002] Due to its simple structure, single-rotor compressors are widely used in various refrigeration systems, such as low-cost air-conditioning systems. When the single-rotor compressor is running, because the pressure in the compressor cylinder changes continuously in each rotation cycle, the torque loaded on the rotor also changes accordingly, and the speed regulator of the control unit always has a certain hysteresis. As well as the offset of the center of gravity of the rotor, the compressor produces mechanical vibration, especially at low frequencies, causing fluctuations in the speed of the compressor, thereby affecting the performance of the compressor. [0003] In order to solve this problem, the general method is to introduce the method of feedforward torque compensation. There are three ...

Claims

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Application Information

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IPC IPC(8): F04C28/00
Inventor 孙冬晨罗昭伟罗承舟
Owner 佛山市顺德区和而泰电子科技有限公司
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