WIND & SOLAR WORKSHOP
16:10 - 18:30
Room: Ballroom Berlin 1
Chair/s:
Eike Ben Erdmann (Enercon Global GmbH)
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
Jurian Ferry 1, 2, Holger Becker 1, 2, Qiuye Gui 1
1 University of Kassel Department of Sustainable Electrical Energy Systems (e²n), Germany
2 Fraunhofer Institute for Energy Economics and Energy System Technology, Fraunhofer IEE, Germany
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