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Model of a Digital relay.

version 1.0.0 (25.2 KB) by Shivam Verma
Simulation example for protection of transmission lines. The model represents a digital relay.


Updated 17 Jul 2021

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A Digital Relay is a computer-based system with software-based protection algorithms for the detection of electrical faults. This model simulates the working of a digital relay with the help of MATLAB/SIMULINK.
The model contains 3 s-function blocks. The s-function blocks acts as codes to implement the logic for the digital relay. Three s-function blocks (having matlab codes) are:
  1. Vector Group Adaptation Block
  2. Zero Sequence Components Elimination Block
  3. Relay Decision Block
For detailed information of this project refer to the research paper on which this project is based on. This project does not implements the complete research done by the authors, just a part of it is impemented. The simulation results are limited to only certain aspect of the research paper.
This model may act as a project for electrical engineer under-graduates who may have switchgear and protection as one of their subjects.

Cite As

Shivam Verma (2021). Model of a Digital relay. (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2014a
Compatible with any release
Platform Compatibility
Windows macOS Linux

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