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Power converter component importance evaluation method based on complex network

A technology for power converters and complex networks, used in electrical components, network interconnection, data exchange networks, etc.

Active Publication Date: 2014-01-08
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the current evaluation problem of the importance of power converter components, a method for evaluating the importance of power converter components based on complex network is proposed

Method used

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  • Power converter component importance evaluation method based on complex network
  • Power converter component importance evaluation method based on complex network
  • Power converter component importance evaluation method based on complex network

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Embodiment

[0043] Taking the Buck converter controlled by UC3573 as an example, the present invention is described in detail, according to figure 1 The flow chart of the method for evaluating the importance of power converter components based on complex networks is shown. The evaluation method is mainly divided into three steps:

[0044] Step 1: Build a complex network model

[0045] like image 3 Shown is the topological structure diagram of the Buck converter, there are a total of 12 components, including the first resistor R 1 , the second resistor R 2 , the third resistance R 3 , the first capacitance C 1 , the second capacitance C 2 , the third capacitor C 3 , the fourth capacitor C 4 , the fifth capacitor C 5 , inductance L 1 , switch tube Q 1 , Diode D 1 And control chip UC3842. The Buck converter is abstracted into a complex network, the electronic components are regarded as the nodes of the complex network, the wires between the electronic componen...

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Abstract

The invention relates to a power converter component importance evaluation method based on a complex network. The power converter component importance evaluation method based on the complex network comprises the steps that (1) an actual topology of a power converter is abstracted to form a complex network model, nodes in the complex network model serve as electronic components of the power converter, and edges of the complex network model serve as wires used for connecting the electronic components; (2) a component importance evaluation matrix is built according to the complex network model, and the component importance evaluation matrix uses proximity of the nodes to represent global importance of the nodes, and uses node degree values and contribution values of adjacent nodes to represent local importance of the nodes; (3) the importance of the electronic components is obtained from the component importance evaluation matrix. The power converter component importance evaluation method based on the complex network solves the problem that a traditional importance evaluation method cannot be easily and directly applied to the power converter, key components of the power converter can be effectively identified, the reliability design of the key components is directed, operation quality of the power converter is ensured, and the power converter component importance evaluation method based on the complex network is low in complexity and facilitates application.

Description

technical field [0001] The invention relates to industrial power converters, in particular to a method for evaluating the importance of power converter components based on a complex network. Background technique [0002] At present, power converters are widely used in many fields such as material processing, surface treatment, power transmission, power quality control, and new energy power conversion due to their energy-saving, high-efficiency, and excellent performance. Practice has proved that the influence of each component in the power converter on the failure of the system is different. The failure of some components will cause the system to collapse, and the failure of some components will only cause a slight deviation in the output. The importance of components reflects the importance of each component of the power converter. A quantitative manifestation of the degree, it refers to the degree of influence on the failure of the entire power converter system to meet the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/46
Inventor 杜贵平何莉丹
Owner SOUTH CHINA UNIV OF TECH
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