Temperature monitoring method and device of permanent magnet motor, storage medium and wind turbine
A permanent magnet motor and permanent magnet technology, which are applied in the field of temperature monitoring of permanent magnet motors, computer-readable storage media and wind turbines, and can solve the problems of increased strength, temperature changes and uneven distribution of various parts of permanent magnet motors, etc. , to improve the service life and avoid irreversible demagnetization
Active Publication Date: 2021-08-24
ZHEJIANG UNIV +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, the electromagnetic and thermal characteristics of the permanent magnet motor in the fault-tolerant operation mode will be very different from the normal operation mode. Typically, the loss field will show the characteristics of increased intensity and uneven distribution, thus causing the components of the permanent magnet motor The temperature will change significantly
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
[0019] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. Embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of means consistent with aspects of the invention as recited in the appended claims.
[0020] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention shall have the usual meanings understood by those skilled in the field of the present invention. "First", "second" and similar wo...
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
Embodiments of the present invention provide a temperature monitoring method and device for a permanent magnet motor, a computer-readable storage medium, and a wind power generating set. The permanent magnet motor includes multiple sets of windings and permanent magnets. Multiple sets of windings are electrically isolated from each other, each set of windings is provided with at least one temperature sensor, and no temperature sensor is provided on the permanent magnet. The method includes: acquiring readings of temperature sensors on multiple sets of windings; judging the operation mode of the permanent magnet motor according to the readings of the temperature sensors on the multiple sets of windings; according to the operating mode of the permanent magnet motor, the readings of the temperature sensors on the multiple sets of windings, and the information on the operating parameters of the motor , motor cooling system information and external environment information, predict the temperature of the permanent magnet; and judge whether the permanent magnet motor has an overheating risk based on the temperature sensor readings on the multiple windings and the predicted temperature of the permanent magnet. The embodiments of the present invention can monitor the temperature of the permanent magnet motor in time to avoid overheating of the permanent magnet motor.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of motors, and in particular to a temperature monitoring method and device for a permanent magnet motor, a computer-readable storage medium, and a wind power generating set. Background technique [0002] Permanent magnet motors have the advantages of high torque density, high power factor, and high efficiency. Therefore, they have been widely used in military, transportation, energy, aerospace and other fields. In order to further improve the reliability of the permanent magnet motor and meet the requirements of some special occasions, the permanent magnet motor can be implemented in the form of having multiple sets of multi-phase windings. When one of the windings fails, it can be cut off, while the remaining windings can still continue to work. This type of design makes the permanent magnet motor have a certain fault-tolerant operation capability. A typical application is offshor...
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): H02K11/25
CPCH02K11/25
Inventor 吴立建闻汇施杨许移庆崔明杜一东方攸同
Owner ZHEJIANG UNIV