IGBT fault diagnosis method for traction drive system of CRH5 type high-speed train
A high-speed train, traction drive technology, applied in the field of system fault diagnosis, can solve problems such as long detection time and inability to accurately isolate faults, and achieve the effect of clear internal structure and inaccurate diagnosis of fault sources.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0046] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.
[0047] refer to figure 1As shown, a CRH5 type high-speed train traction drive system IGBT fault diagnosis method of the present invention first builds a system bond graph model according to the actual physical model of the system, and then utilizes the method of quantitative analysis to construct residuals to carry out fault diagnosis work, including the following Specific steps:
[0048] 1) Modeling of traction component bond graph:
[0049] The bond graph method is based on the law of energy conservation and is suitable for the establishment of multi-energy domain system models. The corresponding variables of each energy domain are shown in Table 1:
[0050] Table 1 Energy variables and ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com