Submission 262
IMPACT OF PHASE ANGLE JUMPS IN THE GRID VOLTAGE ON GFM/GFL TYPE 4 WIND TURBINE GENERATORS
WISO25-262
Presented by: Jurian Ferry
As inverter-based sources like Wind Turbine Generator (WTG) increasingly integrate into the power grid, concerns arise over
spinning reserves and frequency stability. The traditional Grid-Following (GFL) control approach does not adequately address
frequency deviations. In contrast, the Grid-Forming (GFM) method is a promising alternative that allows inverter-based resources
to directly control voltage and to provide system inertia. While GFM inverters can be effectively used with battery energy storage
systems, applying GFM to WTGs poses challenges due to constraints from the primary energy source. Sudden drops in the DC-
link voltage of Type 4 generators can also affect the mechanical components of the wind turbine. Control of the DC-link voltage
can be managed by either the machine-side converter or the grid-side converter. GFL units typically use the grid-side converter,
directly influencing active power feed-in, while GFM inverters affect feed-in power indirectly. This increases interaction between
the grid and WTG, impacting mechanical components. The simulation aims to systematically examine GFM and GFL WTG
facing angular jumps using DIgSILENT PowerFactory in the Electro-Magnetic-Transient (EMT) domain, focusing on GFM
while considering GFL as a reference