A Fault Diagnosis Method for Dry Reactor
A dry-type reactor and fault diagnosis technology, which can be used in electrical winding testing, dielectric strength testing and other directions, and can solve problems such as failure to accurately reflect reactor faults.
Active Publication Date: 2022-06-28
国网江苏省电力有限公司宜兴市供电分公司
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Problems solved by technology
[0004] The invention provides a fault diagnosis method for a dry-type reactor, which solves the problem that the fault of the reactor cannot be accurately reflected in the related art
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[0053]It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
[0054] In order for those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments of some, but not all, 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 creative efforts shall fall within the protection scope of the present invention.
[0055] It should be noted that the terms "...
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The invention relates to the technical field of reactor state detection, and specifically discloses a dry-type reactor fault diagnosis method, which includes: separately counting the equivalent resistance of the dry-type reactor in the normal state and the equivalent resistance in the fault state ; The equivalent resistance of the dry-type reactor in the normal state and the equivalent resistance in the fault state are used as the target training data set and the test data set; The fault features of the singular entropy algorithm are extracted to obtain the micro-incremental wavelet singular entropy; the micro-incremental wavelet singular entropy is used as the fault feature, and the feature quantity is constructed according to the fault feature; the feature quantity is clustered according to the clustering algorithm to obtain the clustering Results; According to the clustering results, the fault state of the dry-type reactor was judged. The dry-type reactor fault diagnosis method provided by the invention can accurately reflect the fault state of the dry-type reactor, thereby ensuring safe and reliable operation of the dry-type reactor.
Description
technical field [0001] The invention relates to the technical field of reactor state detection, in particular to a fault diagnosis method for a dry reactor. Background technique [0002] Dry-type reactor is an important equipment in the power system. It is widely used in the power system because of its advantages of stable parameters, good linearity, low noise and low loss. With the increase in the number of dry-type reactors in operation and the increase in operating years, the early products have immature technology or inadequate process control and other factors, resulting in product quality defects gradually appearing. At the same time, because it uses air for heat dissipation and the operating environment is relatively harsh, it is easy to cause insulation damage after long-term operation, further causing faults such as inter-turn short circuit, and even causing the reactor to burn out in severe cases, thus affecting the safe and stable operation of the power grid. Acc...
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IPC IPC(8): G01R31/72G01R31/12
CPCG01R31/12
Inventor 许立新陈伟陈勇杨春潘信诚马宏忠
Owner 国网江苏省电力有限公司宜兴市供电分公司