Method and device for detecting the degree of pollution in an operational converter

A pollution degree, converter technology, applied in output power conversion devices, emergency protection circuit devices that respond to undesired changes, and emergency protection devices that automatically disconnect, which can solve production interruptions, large follow-up costs, etc. problems, to achieve the effect of reducing cost and image loss, reducing the number of shutdowns, and improving the value of leakage current

Inactive Publication Date: 2007-04-04
SIEMENS AG
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If such converter devices are connected in a production process, the entire production may be interrupted by a disconnected converter device, resulting in huge follow-up costs

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for detecting the degree of pollution in an operational converter
  • Method and device for detecting the degree of pollution in an operational converter
  • Method and device for detecting the degree of pollution in an operational converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] A preferred embodiment of the first device according to the invention is shown by way of example in FIG. 1 . The device has a temperature module 2 , a temperature sensor 4 and an evaluation circuit 6 . The temperature sensor 4 is placed on the part of the converter device whose temperature is to be measured. This component is the cooler of the converter device, which is in direct contact with the ambient air of the converter device. The temperature module 2 is a known temperature module for coolers. Use this temperature module according to the actual power loss P V and the actual cooling medium temperature T umg Determine the expected cooler temperature T KK . Here, the integral time constant corresponds to the thermal mass of the cooler, and the feedback coefficient corresponds to the cooler thermal resistance R th the reciprocal of . As in conventional thermal modules, to estimate the semiconductor barrier temperature, the power loss P is determined from the lo...

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

No PUM Login to view more

Abstract

The invention relates to a method and a device for detecting the degree of pollution in an operational converter. According to the invention, the operating condition of at least one of the converter components that is exposed to the ambient air is determined and a corresponding operating condition of said component in an unpolluted state is determined. The two operating conditions are then compared and the calculated comparison value is used as a measurement for the degree of pollution of the converter. The inventive method for detecting the degree of pollution of an operational converter permits a reduction of the number of breakdowns as a result of a non-protected operating mode of a converter and of the associated disadvantages such as costs and damage to a company's image.

Description

technical field [0001] The invention relates to a method and a device for detecting the degree of contamination of an operating converter installation. Background technique [0002] If a converter device, such as a frequency converter, is operated in a polluted environment without a corresponding degree of protection, deposits can occur inside the converter device. Since the ambient air of the converter is used as cooling medium, contamination particles present in the ambient air can deposit on the surfaces of components of the converter device, in particular the elements to be cooled. Such deposits lead to overheating on the surface to be cooled (for example of a cooler) or on the surface of the wearable component, with subsequent damage. Deposits on insulating surfaces can bridge the electrical insulation and thus endanger the functionality and reliability of the converter device. [0003] Although commercially available converter devices are used in accordance with thei...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/42H02M1/08H02H5/04H02H6/00
CPCH02H6/005H02H5/042
Inventor 休伯特·希尔林
Owner SIEMENS AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap