/ Implementation of automated relay protection calculation and coordination system at the facilities of renewable energy generating company

Implementation of automated relay protection calculation and coordination system at the facilities of renewable energy generating company

Customer

Renewable energy production company with the following characteristics: 

  • More than 60 hydro-power plants
  • 19 solar power plants
  • Another alternative energy plants: pumped-storage, geothermal, wind, tidal
  • Installed electricity generation capacity about 40 GW

Task

  • Automate relay setting development process for Generators, MV, HV and Operating AC DC Voltage Systems protection devices.
  • Prevent relays mis-operations caused by changes in the power system by performing coordination on schedule

Goals and figures achieved

  • High automation level for relay settings calculations (more than 80% operations are automated)
  • Reducing the number of accidents due to wrong relay settings calculation and configuration
  • Elimination human error due to data transfer between separate programs
  • 60 % growth in personnel’s productivity.

Implementation

As a result of the project: 

  • Compilation of relay setting guidelines for HPP/PSPP.
  • Development of new setting calculations modules:
    • Operating AC DC Voltage Systems protection devices and cable lines calculating and validation module
    • Protection calculations, coordination and cable verifications module for MV auxiliaries’ grid
    • Generators relay setting calculations module
    • Predictive relay operation analysis for the entire system
  • Development of digital twins for Generators relays and MV, LV protection devices
  • Verification of relay digital twins based on the oscillographs of the real emergency process

End-to-end digital technologies used in the project:

  • Mathematical modeling of normal and emergency operation modes of relay protection and automation devices, including electromagnetic transition process 
  • Development of digital twins for primary and secondary power equipment for HPP/PSPP. 


Result

Development and introduction of the automated relay calculation and coordination software system

Creating corporate library of relay calculation guidelines guaranteed by software

Success stories