Design method and system of broadband DC power resistor

A design method, resistor technology, applied in computer-aided design, instrumentation, calculation, etc., can solve problems such as no design method provided

Active Publication Date: 2019-06-04
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most inventions or documents have proposed different winding methods, metal sheets in series, etc., which are suitable for the design of broadband DC power resistors for resistance wire winding and metal resistor sheets in series, but they have not provided design methods for the case of ceramic resistors in series.

Method used

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  • Design method and system of broadband DC power resistor
  • Design method and system of broadband DC power resistor
  • Design method and system of broadband DC power resistor

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Embodiment Construction

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "or / and" includes any and all combinations of one or more of ...

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Abstract

The invention discloses a design method and system for a wide-frequency direct-current power resistor. The method comprises: according to geometric parameters of the power resistor, determining a current capacitance value and a current inductance value of the power resistor; according to the current capacitance value, the current inductance value, a preset frequency and a preset resistance value, determining the impedance of the power resistor at the preset frequency; determining a deviation between the impedance and the preset resistance value, and judging whether the deviation is less than a preset deviation or not; when a judgment result is that the deviation is less than the preset deviation, taking the geometric parameters of the power resistor as design parameters of the power resistor; and when a judgment result is that the deviation is not less than the preset deviation, modifying the geometric parameters according to the impedance, the preset resistance value and the geometric parameters, and taking the modified geometric parameters as the design parameters of the power resistor. According to the design method and system for the wide-frequency direct-current power resistor, the deviation between the impedance of the power resistor at the preset frequency and the preset resistance value can be ensured to be within a range less than the preset deviation.

Description

technical field [0001] The invention belongs to the field of electric equipment, and in particular relates to a design method and system for a wide-band DC power resistor. Background technique [0002] DC power resistors are used in DC transmission, locomotives, filter resistors and other fields. Although DC current flows through its normal working condition, under fault or other transient working conditions, it will present capacitive or inductive due to the existence of stray parameters, which will affect the overvoltage of the system. Therefore, it is of great significance for the overvoltage analysis of the system to obtain a power resistor that is resistive in a higher frequency range. [0003] Common power resistors have a variety of manufacturing methods, such as the application of ceramic resistors in series, resistance wire winding, metal resistors in series, etc. Most inventions or documents have proposed different winding methods, metal sheets in series, etc., w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06F30/17G06F2119/18
Inventor 黄莹项阳刘磊李敏赵志斌黎小林卢毓欣郭龙
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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