Calculating method of temperature field of axial radial rotor temperature field of power generator
A generator rotor and rotor temperature technology, applied in calculation, computer-aided design, electrical digital data processing, etc., can solve problems such as rotor winding burnout, economic loss, affecting the life of the turbogenerator and operating reliability, etc.
Inactive Publication Date: 2017-05-31
BEIJING JIAOTONG UNIV
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Problems solved by technology
The temperature rise of the rotor is directly related to the performance and economic and technical indicators of the turbo-generator, and affects the life and operation reliability of the turbo-generator. Excessive temperature rise of the rotor in the motor as a whole or in part will also cause the rotor winding to burn out, resulting in major economic loss
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[0089] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0090] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be unders...
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The embodiment of the invention provides a calculating method of a temperature field of axial radial rotor temperature field of a power generator. The method can be used for accurately calculating the temperature field with an axial radial venting structure of a large generator rotor; the method applies reasonable hypothesis; according to the unequal distance and variable section distribution method of a venting ditch and a secondary tank along the axial direction and radial direction of a rotor, the calculating model is simplified from a three-dimensional model to a two-dimensional model, thereby largely shortening the calculating time. Meanwhile, temperature of every part of the large generator rotor can be accurately calculated by applying the calculating method combining equivalent wind path with radiating coefficient.
Description
technical field [0001] The invention relates to the technical field of generators, in particular to a method for calculating the temperature field of a generator shaft radial to a rotor. Background technique [0002] With the continuous increase of the unit capacity of the turbogenerator and the continuous improvement of the economic and technical indicators of the motor, the accuracy requirements for the calculation of the temperature rise of the rotor winding are becoming higher and higher, and the accuracy requirements for the calculation of the temperature rise of the rotor winding are also becoming more and more complicated. Get higher and higher. The temperature rise of the rotor is directly related to the performance and economic and technical indicators of the turbo-generator, and affects the life and operation reliability of the turbo-generator. Excessive temperature rise of the rotor in the motor as a whole or in part will also cause the rotor winding to burn out, ...
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IPC IPC(8): G06F17/50
CPCG06F30/20G06F2119/08
Inventor 李伟力王蒲瑞李金阳罗应立李栋曹君慈付敏焦晓霞张晓晨李勇
Owner BEIJING JIAOTONG UNIV