A method for evaluating the ability of smart components to withstand ground potential rise
A technology of smart components and ground potential, applied in the direction of measuring electricity, measuring electrical variables, testing dielectric strength, etc., can solve the problems of no GIS ground potential detection methods and preventive measures, differences, and damage to smart components.
Active Publication Date: 2019-12-31
BEIHANG UNIV +2
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, during the test, there are differences in the ground potential waveforms at different positions of GIS shells with different voltage levels and different structures, and the topological structures of smart components from different manufacturers are also quite different. The reliability of the combined form is tested and verified, and there is still no detection method and preventive means for GIS ground potential, and damage to smart components occurs from time to time during field operation and testing
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.
[0018] The invention is a method for evaluating the ability of an intelligent component to withstand a rise in ground potential. The process is as follows: figure 1 shown, including the following steps:
[0019] Step 1: Set the normal working threshold level of smart components;
[0020] The smart component CPU usually uses a logic level of 3.3V. In order to ensure its reliable operation, it is set to 1 / 2 of the logic level value of the threshold level of the smart component, which is set to 1.6V.
[0021] Step 2: Establish an equivalent model of smart components;
[0022] A third-order Butterworth low-pass filter is chosen as the smart component equivalent model.
[0023] Step 3: Adjust the parameters of the equivalent model of the smart component;
[0024] Electrical fast transient / burst immunity (Electrical Fast Transient / Burst, EFT / B) is one o...
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
Login to View More Abstract
The invention discloses a method for evaluating ground potential rise tolerance capability of an intelligent assembly. The method comprises the following steps: 1) setting a normal working threshold level of the intelligent assembly; 2) establishing an equivalent model of the intelligent assembly; 3) adjusting parameters of the equivalent model of the intelligent assembly; and 4) evaluating ground potential rise tolerance capability of the intelligent assembly. For different voltage grades and GIS in different structures, difference of ground potential signals on a housing is larger under the condition of bus charging current switching, so that test cost is high when various ground potential signals are applied to the intelligent assembly one by one; and by applying the equivalent model of the intelligent assembly to simulation analysis, interference signal levels obtained after different actually-measured ground potential signals are applied to the intelligent assembly can be known quickly.
Description
technical field [0001] The invention relates to a method for evaluating the ability of an intelligent component to withstand ground potential rise, and belongs to the technical field of high-voltage switch tests. Background technique [0002] In order to test the electromagnetic compatibility performance of smart components and meet the needs of engineering applications, since 2012, the State Grid Corporation of China has successively released performance testing solutions for intelligent gas-insulated metal-enclosed switchgear (hereinafter referred to as "GIS"), integrating smart components, sensors and GIS The design is integrated, and the overall test assessment is carried out according to the layout of the site. The reliability test is mainly based on the GIS equipment type test standard, combined with the site operating conditions, and selects typical test items that may affect the reliability of the smart component operation. However, during the test, there are differe...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R31/12G01R31/327G06F17/50
CPCG01R31/001G01R31/1254G01R31/3271G06F30/20
Inventor 武建文冯英金鑫晨兰剑李德阁寇晓适黄兴泉董曼玲袁洋
Owner BEIHANG UNIV