A study on the excitation system impact on Fault-Ride-Through response
Ensuring a reliable and resilient grid involves generating systems that can withstand net-work faults. Fault Ride Through (FRT) requirements are crucial for this purpose.
FRT refers to the ability of generating units to stay synchronized during faults. Grid Code Compliance involves maintaining specified voltage levels for a given time in additionto a successful recovery after a fault occurrence.
Key factors affecting FRT include excitation system parameters, the synchronous machine characteristics, circuit breaker ratings, protection settings, electrical grid stiffness, fault location and many more.
This study provides valua-ble insights into the factors influencing FRT and can guide future efforts to enhance power system resilience. For that, an ABB UNITROL® 1000 Factory model implemented in the Dig-SILENT Power Factory software is used. The Critical Clearing Time [CCT] of multiple sets of system parameters yields are compared.
Each set will have a single parameter changed to observe the impact of this parameter on the CCT can be addressed.