Library for relay protection simulation in Simulink

The article provides a library for modeling relay protection in a Simulink environment.

The library (ver. 1.0.1 of 03/10/2019) contains the following elements:

  • Relay
  • Time delay
    • Trip delay
    • Reset delay
    • Pulse delay
    • Inverse time delay
  • Logical elements (AND, OR, NOT elements)
  • Filters
    • Fourier filter
    • RMS Filter
    • Filter of Symmetrical Components
    • Filter of Emergency Components
  • Additional blocks
    • Discretizer
    • RS flip-flop
    • Filter of Maximum / Minimum value
    • Oscilloscope
    • Screen

The library for modeling relay protection is given in the following file: relay_library.mdl

The library will be constantly updated, stay tuned.

If you have any suggestions or comments, then please indicate them in the comments or contact us.

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