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IEC/TR 63401-4 Ed. 1.0 en:2022

Dynamic characteristics of inverter-based resources in bulk power systems - Part 4: Behaviour of inverter-based resources in response to bulk grid faults
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IEC/TR 63401-4 Ed. 1.0 en:2022

Dynamic characteristics of inverter-based resources in bulk power systems - Part 4: Behaviour of inverter-based resources in response to bulk grid faults

PUBLISH DATE 2022
IEC/TR 63401-4 Ed. 1.0 en:2022

Dynamic characteristics of inverter-based resources in bulk power systems - Part 4: Behaviour of inverter-based resources in response to bulk grid faults.

IEC 63401-4:2022 (E), which is a technical report, focuses on the fault behaviour of IBRs and performances of the existing relay protection in grids with large-scale integration of IBRs.

This document includes:

  • The IBR fault current requirements in present grid codes, including the requirements of active and reactive currents in positive- and negative-sequence systems during symmetrical and unsymmetrical faults.
  • Fault current behaviour of IBRs, including the current components in transient and fundamental frequency in different IBR topology and control schemes.
  • Adaptability of existing relay protection with the large-scale integration of IBRs, including the performances of distance protection, phase selector, directional relay and over-current protection.
SDO IEC: International Electrotechnical Commission
Document Number IEC/TR 63401
Publication Date June 1, 2022
Language en - English
Page Count
Revision Level 1.0
Supercedes
Committee 8A
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