Dual-port electrical appliance transmission parameter acquiring method and system

A technology for power equipment and transmission parameters, applied in the field of transmission parameter acquisition of two-port power equipment, can solve problems such as inability to obtain transmission parameters accurately, and inability to cover the test frequency of instruments

Inactive Publication Date: 2016-02-03
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +2
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Problems solved by technology

[0003] At present, the basic principle of the commonly used network analyzers for obtaining transmission parameters of power equipment is to obtain transmission parameters by means of scattering parameters. Therefore, for transmission parameters at low frequencies, there may be problems that the instrument test frequency cannot be covered or the transmission parameters cannot be accurately obtained.

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  • Dual-port electrical appliance transmission parameter acquiring method and system
  • Dual-port electrical appliance transmission parameter acquiring method and system
  • Dual-port electrical appliance transmission parameter acquiring method and system

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Embodiment Construction

[0023] 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.

[0024] 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 provides a dual-port electrical appliance transmission parameter acquiring method and system. An impedance parameter of a dual-port electrical appliance in a low-frequency band is obtained by means of an impedance analyzer. A scattering parameter of the appliance in a high-frequency band is obtained by means of a network analyzer. A transmission parameter of the appliance is determined according to the impedance parameter and the scattering parameter. The method and the system can obtain the impedance parameter of the low-frequency band by means of the impedance analyzer and the scattering parameter of the high-frequency band by means of the network analyzer and can determine the transmission parameter according to the impedance parameter and the scattering parameter, thereby solving the problems that during the process of obtaining electrical appliance transmission parameters, for low frequency situations, instrument test frequency may not cover the low frequency or accurate transmission parameters in low-frequency bands may not be obtained. The method and the system can obtain accurate transmission parameters of the dual-port electrical appliance in the low-frequency and high-frequency bands.

Description

technical field [0001] The invention belongs to the field of electric equipment, and in particular relates to a method and system for acquiring transmission parameters of two-port electric equipment. Background technique [0002] The transmission parameters of power equipment are of great significance for accurate calculation of power line voltage and current distribution under lightning strike, operation or fault overvoltage conditions. [0003] At present, the basic principle of network analyzers commonly used to obtain transmission parameters of power equipment is to obtain transmission parameters by means of scattering parameters. Therefore, for transmission parameters at low frequencies, there may be problems that the instrument test frequency cannot be covered or the transmission parameters cannot be obtained accurately. Contents of the invention [0004] Based on this, it is necessary to provide a two-port electric device transmission parameter acquisition method an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/28
Inventor 项阳黄莹刘磊李敏赵志斌卢毓欣辛清明
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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