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Signal communication time-delay simulation method based on PSCAD/EMTDC

A simulation method and technology of delay module, applied in the field of electric power, can solve the problems of long geographical distance of converter stations, and achieve the effect of improving efficiency and accuracy

Inactive Publication Date: 2017-07-25
NR ELECTRIC CO LTD +2
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  • Claims
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Problems solved by technology

The inter-station communication is similar to the intra-station inter-pole communication, but due to the geographical distance of the converter station, the signal needs to use the long-distance communication system

Method used

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  • Signal communication time-delay simulation method based on PSCAD/EMTDC

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] PSCAD / EMTDC is the electromagnetic transient simulation software widely used in the world. EMTDC is the core of its simulation calculation. PSCAD (Power Systems Computer Aided Design) provides a graphical operation interface for EMTDC (Electromagnetic Transients including DC). PSCAD / EMTDC has accurate and rich power system application models, convenient data input methods and powerful data analysis functions. It is a powerful tool for power system analysis an...

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Abstract

The invention discloses a signal communication time-delay simulation method based on a PSCAD / EMTDC. The method comprises steps that a communication time-delay module is established in the PSCAD / EMTDC, and ports and parameters of the communication time-delay module are set; according to the parameters of the communication time-delay module, application space is taken as data buffer and input output pointer storage space in global arrays STORI and STORF of the PSCAD / EMTDC; data buffer is utilized to realize signal time-delay simulation in an annular buffer mode. The method is advantaged in that signal communication time-delay can be simulated, and high efficiency and high accuracy are realized.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a signal communication delay simulation method based on PSCAD / EMTDC. Background technique [0002] In order to cope with the failure analysis of power system failures and to meet the research needs of setting value setting and theoretical research, many large-scale power transmission projects, especially DC power transmission projects, will use digital simulation software to analyze the entire project (including power system network, power components, etc.) , control and protection system, etc.) to carry out mathematical modeling and build a digital simulation model. The power transmission engineering system is huge, and the accuracy of modeling determines whether the digital simulation model can reflect the real response of the power transmission project and whether it can meet the actual needs of the power transmission project. The control and protection system of powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 柏传军卢宇程璐璐
Owner NR ELECTRIC CO LTD
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