A method and device for suppressing the fluctuation of the rotation speed of an air conditioner compressor
A technology for air-conditioning compressors and rotational speed fluctuations, which is used in the control of electromechanical transmissions, electromechanical brakes, and generators. The effect of speed fluctuation and smooth operation
Active Publication Date: 2021-10-29
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Although the prior art also has a method for suppressing the fluctuation of the compressor rotational speed, the fluctuation suppression effect is not ideal enough, and the problem of the fluctuation of the rotational speed of the compressor cannot be fundamentally solved
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0051] 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.
[0052] See figure 1 , which is a flowchart of an embodiment of the method for suppressing the fluctuation of the rotation speed of the air conditioner compressor based on the present invention.
[0053] Such as figure 1 shown, combined with figure 2 A control block diagram is shown, and this embodiment adopts a process including the following steps to realize the suppression of compressor speed fluctuations:
[0054] Step 11: Obtain an axis error Δθ reflecting the deviation between the actual position and the estimated position of the compressor rotor.
[0055] In compressor control, the phase of the compressor rotor can be locked by the phase-locked loop (PLL) control technology to lock it at the target phase. The control block diagram of the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method and device for suppressing the fluctuation of the rotational speed of an air-conditioning compressor. The method includes: obtaining an axis error reflecting the deviation between the actual position and the estimated position of the compressor rotor; filtering the axis error to obtain at least The corrected axis error and its corresponding angular velocity compensation amount after filtering out some axis error fluctuations; the angular velocity compensation amount is compensated to the output angular velocity of the phase-locked loop regulator in the compressor phase-locked loop, and the compensated angular velocity output amount is obtained; extract The DC component of the angular velocity compensation amount, the DC component and the output angular velocity of the phase-locked loop regulator are input to the speed loop regulator in the compressor control speed loop as input; according to the compensated angular velocity The output quantity corrects the real-time angular velocity used for compressor control, and controls the compressor according to the corrected real-time angular velocity and the output torque of the speed loop regulator. By applying the present invention, the effectiveness of suppressing the fluctuation of the rotational speed of the compressor can be improved.
Description
technical field [0001] The invention belongs to the technical field of motor control, specifically relates to compressor control technology, and more specifically relates to a method and a device for suppressing the fluctuation of the rotational speed of an air conditioner compressor. Background technique [0002] When the compressor used in the air conditioner is running, it is affected by the working principle and control technology of the air conditioner as a load, which makes the load torque of the compressor extremely unstable, easily causing large speed fluctuations, and the compressor is not running smoothly. The unstable operation of the compressor will lead to unstable operation of the entire air conditioner system, causing various adverse effects. Moreover, the unstable operation will also generate relatively large operating noise, which cannot meet the requirements of relevant noise standards and affect the comfort of the air conditioner. This phenomenon is espec...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/05
Inventor 史为品张新徐贝贝刘聚科程永甫
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD