A permanent magnet synchronous motor control method, device, electronic device and storage medium
A permanent magnet synchronous motor and control method technology, applied in the fields of electronic equipment and storage medium, device, and permanent magnet synchronous motor control method, can solve the problems of bus voltage fluctuation, inaccurate direct-axis current value and quadrature-axis current value, etc. To achieve the effect of accurate current information
Active Publication Date: 2022-03-18
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the embodiment of the present application is to provide a permanent magnet synchronous motor control method to solve the problem that the direct axis current value and the quadrature axis current value obtained by using the existing look-up table method are inaccurate when the bus voltage fluctuates
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
[0096] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0097] Since the bus voltage changes when the speed is high during the actual operation of the motor, the direct-axis current value and the quadrature-axis current value obtained by the existing look-up table method are not accurate. To this end, an embodiment of the present application provides a permanent magnet synchronous motor control method, which can be applied to a motor drive control system.
[0098] In the following, a method for controlling a perman...
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 application provides a permanent magnet synchronous motor control method, device, electronic equipment and storage medium, belonging to the technical field of motor drive control. This application obtains the measured rotational speed value, the bus voltage value and the electrical angular velocity value; calculates the difference between the measured rotational speed value and the preset rotational speed value to obtain the rotational speed difference; when the measured rotational speed value is greater than or equal to the preset base speed, the rotational speed difference Input it into the first speed regulator to get the torque command; substitute the bus voltage value and electrical angular velocity value into the preset formula to get the K value; find the torque command in the preset torque command and the corresponding relationship between the K value and the current information The torque command and the current information corresponding to the K value are used to control the motor through the current information. The current information searched through this application is applicable to the situation of bus voltage fluctuation, so that the final current information is more accurate.
Description
technical field [0001] The present application relates to the technical field of motor drive control, in particular to a permanent magnet synchronous motor control method, device, electronic equipment and storage medium. Background technique [0002] In recent years, in the field of household appliances, cost reduction is a gradual development trend, so the permanent magnet synchronous motors widely used in household appliances have also been improved accordingly. The bus capacitor in the traditional permanent magnet synchronous motor drive system uses large electrolytic capacitors, but large electrolytic capacitors have disadvantages such as short service life, large volume, and high price; and film capacitors have the advantages of long service life, small size, and low cost. Replacement of large electrolytic capacitors used in motor drive systems. The permanent magnet synchronous motor drive system using film capacitors without electrolytic capacitors on the bus has the ...
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): H02P6/28H02P21/00H02P21/22
CPCH02P6/28H02P21/0089H02P21/22H02P2207/05
Inventor 董天福徐常升张东盛
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION