Abstract
In the recent grid codes, wind power plants are
required to stay connected and inject reactive and active
currents during grid short-circuit faults, even when the grid
voltage drops down to zero. However, the physical fact, Loss
of Synchronism (LOS) of wind turbines during these very low
voltage faults has been underestimated in the grid codes; and
the LOS has recently been explored only in few studies. In this
paper the LOS phenomenon is studied, especially focusing on
the case of a string of wind turbines, rather than an
aggregated one. It is shown that the LOS affects the wind
power plant as whole. Additionally, existing methods to solve
the LOS problem are briefly reviewed, and a closed loop
frequency based solution is implemented within PowerFactory
simulations of a detailed generic wind power plant model.
required to stay connected and inject reactive and active
currents during grid short-circuit faults, even when the grid
voltage drops down to zero. However, the physical fact, Loss
of Synchronism (LOS) of wind turbines during these very low
voltage faults has been underestimated in the grid codes; and
the LOS has recently been explored only in few studies. In this
paper the LOS phenomenon is studied, especially focusing on
the case of a string of wind turbines, rather than an
aggregated one. It is shown that the LOS affects the wind
power plant as whole. Additionally, existing methods to solve
the LOS problem are briefly reviewed, and a closed loop
frequency based solution is implemented within PowerFactory
simulations of a detailed generic wind power plant model.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 13th Wind Integration Workshop |
| Number of pages | 6 |
| Publication date | 2014 |
| Publication status | Published - 2014 |
| Event | 13th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Plants - Berlin, Germany Duration: 11 Nov 2014 → 13 Nov 2014 |
Conference
| Conference | 13th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Plants |
|---|---|
| Country/Territory | Germany |
| City | Berlin |
| Period | 11/11/2014 → 13/11/2014 |
Keywords
- Short-circuit faults
- Converters
- Current control
- Power system stability
- Wind Power Generation
- Phase locked loops
- IEC standards