Simulation modeling method of general relay rtds with adjustable return coefficient and action time

A technology of action time and return coefficient, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of construction, digital simulation confidence reduction, and affecting RTDS application performance, so as to achieve wide versatility and improve simulation The effect of confidence

Active Publication Date: 2018-09-28
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two physical properties of the relay (including the circuit breaker it controls) determine that its digital simulation model must have quite complex action timing and logic relationships. However, it is currently impossible to build with RTDS standard components. This blank leads to digital simulation confidence. reduce the degree and seriously affect the application performance of RTDS

Method used

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  • Simulation modeling method of general relay rtds with adjustable return coefficient and action time
  • Simulation modeling method of general relay rtds with adjustable return coefficient and action time
  • Simulation modeling method of general relay rtds with adjustable return coefficient and action time

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Create relay simulation model RTDS graphical user interface

[0024] Use the CBuilder editor to create the graphical user interface of the RTDS relay model, including the model graphical interface icon and the model parameter setting dialog box (such as figure 1 with 2 ), and define the data types of the model input / output variables and action setting values, return coefficients, action time and other three model parameters; the model is named RELAY1.def, and the model interface is stored in the RTDS networked PC or workstation in the form of data files Under the RSCAD / Ulib directory of the user model library;

[0025] Define the data type of the internal program of the model

[0026] It mainly includes static variables for step registration and temporary variables for real-time step update; the two kernel data files of the model generated by the CBuilder editor are respectively named relay1.h and relay1.c and stored in the user-automatic Define the model source cod...

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Abstract

The invention discloses a general-purpose relay RTDS simulation modeling method with an adjustable return coefficient and actuation time. On the basis of the RTDS self-definition programming technique, real-time performance of an RTDS is utilized, sequential execution stationarity of program codes is depended on and combined with flexibility of variable data definition, the correct stepping recurrence relation between a current moment and a previous moment of various state variables of a built model in numerical value is guaranteed in the mode that historical data are stored in static variables, and therefore the built model can meet the simulation requirements of two basic physical properties that the return coefficient of a practical relay protection device is less than 1 and actuation time is not equal to 0. The general-purpose relay RTDS model obtained by means of the method can accurately simulate physical properties of a practical relay, has the same physical effect with the practical relay protection device and effectively solves the problem that an existing model base of the RTDS is lack of high simulation degree relay models.

Description

technical field [0001] The invention belongs to the technical field of real-time digital simulation modeling of power systems, and in particular relates to a general relay RTDS simulation modeling method with adjustable return coefficient and action time. Background technique [0002] Real-Time Digital Simulator RTDS (Real-Time Digital Simulator) is a digital physical simulation experiment system, which combines the advantages of the high-efficiency and flexibility of digital simulation and the intuitive reliability of physical simulation. RTDS is gradually replacing traditional physical dynamic model experimental devices or / and offline software calculation tools. [0003] With the improvement of simulation requirements, the existing component models in the RTDS standard component model library (RSCAD / Master) can no longer fully meet the needs of system modeling. The relay is the most basic component of power system fault protection. The actual relay and the circuit brea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 孙志媛钱珞江刘默斯丁涛宁文辉李黎赵晓慧李明珀刘鹏
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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