Method and system for assessing health of fan, storage and controller
A health assessment, fan technology, applied in the direction of instruments, computer components, special data processing applications, etc., can solve the problem that does not consider the complex and changeable operating state that affects the fan deterioration process, and achieves the single parameter threshold alarm method, accurate Assessing the Effect of Changes in Health Status
Active Publication Date: 2017-11-10
SHANGHAI JIAO TONG UNIV
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Problems solved by technology
[0007] In order to solve the above-mentioned and other potential technical problems, the purpose of the present invention is to provide a method, system, memory and controller for fan health assessment, which are used to solve the problem of complex and changeable operating conditions in the prior art. The influence of the state and the problem that the existing SCADA system cannot identify the deterioration process of the fan before the failure
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[0041] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0042] see Figure 1 to Figure 6 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, a...
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The invention provides a method and a system for assessing the health of a fan, a storage and a controller. The method comprises the steps of acquiring historical data of a fan in normal operation and forming a working condition feature vector when the fan is working; dividing the historical working condition of the fan; recognizing the type of the working condition, and using a state feature vector to build a reference model for assessing the health of the fan on the line according to the type of the working condition; inputting the working condition feature vector at the current moment into a preset training model to acquire the probability the working condition of the fan at current moment belongs to the type of each working condition, and computing a mahalanobis distance between the state feature vector at the current moment and the reference model under each working condition; and acquiring a weighted average value of the working condition type probability and the mahalanobis distance with the reference model under each working condition, and converting the weighted average value into a health index for describing the degree the working condition deviates from normal operation at the current moment. According to the method and the system provided by the invention, a degradation process before the fan is failed can be recognized in advance, and health state variation of the fan in operation can be accurately assessed.
Description
technical field [0001] The present invention relates to the technical field of health assessment of the operating state of mechanical equipment, in particular to the technical field of health assessment of the operating state of an axial fan, specifically a method, system, memory and controller for health assessment of a fan. [0002] Copyright statement [0003] The disclosure of this patent document contains material that is protected by copyright. This copyright belongs to the copyright owner. The copyright owner has no objection to the reproduction by anyone of the patent document or the patent disclosure as it exists in the official records and files of the Patent and Trademark Office. Background technique [0004] Wind energy is a clean and pollution-free new energy with unlimited resources. With the adjustment of modern energy structure, the utilization of wind energy has been paid more and more attention, and the technology of using wind energy for power generation...
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IPC IPC(8): G06F19/00G06K9/62
CPCG16Z99/00G06F18/23213
Inventor 李惠柯张静李柠
Owner SHANGHAI JIAO TONG UNIV
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