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Vibration compensation method for single-rotor compressor and controller

A single-rotor compressor and vibration compensation technology, which is applied to machines/engines, rotary piston type/swing piston type pump components, mechanical equipment, etc., can solve the problem that the vibration of single rotor compressors is not easy to achieve, and achieve vibration reduction. Improve the effect of suppressing the fundamental wave of noise and vibration

Active Publication Date: 2014-08-06
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a vibration compensation method and controller for a single-rotor compressor, aiming to solve the problem that reducing the vibration of a single-rotor compressor is not easy to achieve in the prior art

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  • Vibration compensation method for single-rotor compressor and controller
  • Vibration compensation method for single-rotor compressor and controller
  • Vibration compensation method for single-rotor compressor and controller

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] The specific embodiment of the present invention provides a vibration compensation method for a single-rotor compressor. The method is completed by a processor, and the processor is completed. The processor may specifically be: an embedded processor such as a digital signal processor or a single-chip microcomputer and its peripherals circuit implementation. Because the algorithm proposed by the present invention is a continuous time algorithm, the software implementation in the embedded processor needs to convert the continuous time algorithm into a discrete algorithm with numerical methods ...

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Abstract

The invention is applicable to the technical field of household electrical appliances and provides a vibration compensation method for a single-rotor compressor and a controller. The method comprises the following steps: acquiring a rotating speed set value omega* and a rotating speed estimated value omega e corresponding to a speed command value; multiplying a speed error delta omega by cos theta, carrying out low pass filtering so as to obtain the cosine component Qc of a speed fluctuation fundamental wave, multiplying delta omega by sin theta and carrying out low pass filtering so as to obtain the sine component Qs of the speed fluctuation fundamental wave; multiplying Qc by cos (theta+delta theta), multiplying Qs by sin (theta+delta theta) and adding the result of multiplication of Qc by cos (theta+delta theta) and the result of multiplication of Qs by sin (theta+delta theta) together so as to obtain an intermediate rotating speed omega rip; subjecting omega rip to high pass filtering so as to obtain a q-shaft current compensation value; and inputting the q-shaft current compensation value into the single-rotor compressor to realize vibration compensation. With the technical scheme provided by the invention, the advantages of reduction in vibration of the single-rotor compressor and easy realization are obtained.

Description

technical field [0001] The invention belongs to the technical field of home appliances, and in particular relates to a vibration compensation method and a controller of a single-rotor compressor. Background technique [0002] Due to the advantages in cost, single-rotor compressors are widely used in the field of home appliances in my country, such as household air conditioners or refrigerators. However, there are large load fluctuations in the single-rotor compressor, which greatly affects the smoothness of the operation of the compressor. If the control method is not proper, it is easy to cause large mechanical vibrations, and even cause the copper pipes that are fixed to the single-rotor compressor to be damaged. For this reason, many control methods to reduce the speed fluctuation of the single-rotor compressor and suppress the vibration have been proposed and applied. [0003] In order to reduce the vibration of the single-rotor compressor, Fukumoto et al. proposed a A...

Claims

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Application Information

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IPC IPC(8): F04C28/00F04C29/00
Inventor 张国柱严光
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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