IEC - TR 63401-4
Dynamic characteristics of inverter-based resources in bulk power systems – Part 4: Behaviour of inverter-based resources in response to bulk grid faults
| Organization: | IEC |
| Publication Date: | 1 June 2022 |
| Status: | active |
| Page Count: | 54 |
| ICS Code (Electrical engineering in general): | 29.020 |
scope:
This part of IEC 63401, which is a technical report, mainly focuses on the fault behaviour of IBRs and performances of the existing relay protection in grids with large-scale integration of IBRs.
This document mainly 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.
Document History
