Method and device for protecting IPM, storage medium and IPM

A current signal and abnormal technology, which is applied to the detection method of IPM bridge arm failure, storage medium and IPM module, and the field of devices, can solve the problems of inability to identify the IPM module, the high operating failure rate of the IPM module, and reducing the operating failure rate, etc. To achieve the effect of reducing maintenance difficulty and maintenance cost, real-time effective detection, and reducing operation failure rate

Inactive Publication Date: 2019-04-26
GREE ELECTRIC APPLIANCES INC
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to, aim at above-mentioned defect, provide a kind of IPM protection method, device, storage medium and IPM module, to solve the defective situation tha

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 protecting IPM, storage medium and IPM
  • Method and device for protecting IPM, storage medium and IPM
  • Method and device for protecting IPM, storage medium and IPM

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036]According to an embodiment of the present invention, a protection method for IPM is provided, such as figure 1 A schematic flow diagram of an embodiment of the method of the present invention is shown. The IPM protection method may include: Step S110 to Step S130.

[0037] At step S110, the current signal of the IPM is acquired.

[0038] Optionally, acqui...

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 discloses a method and device for protecting an IPM, a storage medium and the IPM. The method comprises the steps that a current signal of the IPM is acquired; whether an IGBT in the IPMis abnormal or not is determined according to the current signal, and/or whether the current signal exceeds the current threshold value of the IPM or not is determined; if the at least one of the situations that the IGBT is abnormal and the current signal exceeds the current threshold value happens, the IPM is controlled to stop working. According to the scheme, the problem that due to the situation that the defect of the IPM cannot be recognized, the IPM is high in operation failure rate under the defect situation can be solved, and the effect of reducing the operation failure rate is achieved.

Description

technical field [0001] The invention belongs to the technical field of electronic circuits, and in particular relates to an IPM protection method, device, storage medium and IPM module, in particular to a detection method, device, storage medium and IPM module for failure of an IPM bridge arm. Background technique [0002] IPM (Intelligent Power Module, intelligent power module), as the key power device of the inverter, in the actual operation process, due to the failure of one or more IGBTs, the system runs abnormally, how to accurately detect the state of the IGBT inside the IPM, It is an important research content to reduce the larger failure of the system caused by IPM defects and reduce the overall loss of the system. However, in the existing control technology, there is no active detection technology for the abnormal defect of the bridge arm inside the IPM. Contents of the invention [0003] The object of the present invention is to, aim at above-mentioned defect, p...

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
IPC IPC(8): H02M1/32G01R19/165
CPCG01R19/165H02M1/32
Inventor 宋爱张有林
Owner GREE ELECTRIC APPLIANCES INC
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