Low-voltage ride-through of PM synchronous wind generator under asymmetrical voltage sags with constant power
| Autor: | Valmor Ricardi, Victor F. Mendes, Victor Magno R. de Jesus, Frederico F. V. Matos, Felipe R. G. Soares |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Wind power business.industry 020209 energy 020208 electrical & electronic engineering Electrical engineering 02 engineering and technology Power factor AC power Fault (power engineering) Turbine Power (physics) 0202 electrical engineering electronic engineering information engineering Low voltage ride through business Power control |
| Zdroj: | 2016 17th International Conference on Harmonics and Quality of Power (ICHQP). |
| Popis: | As the wind energy generation becomes more frequently employed worldwide, specific grid codes concerning power quality are required for these systems. Several countries have determined that the wind turbines cannot be disconnected from the grid during voltage sags, depending on the severity of the sags. This has pushed manufacturers to implement low-voltage-ride-through strategies in their turbines. Some grid codes not only demand that the turbine remain connected but also that it must provide active or reactive power in order to aid the recovery from the fault. This paper presents a strategy of low-voltage-ride-through that uses resonant controllers in the synchronous reference frame in order to withstand unbalanced voltage sags in a permanent magnet synchronous machine topology with full-scale power converter. It presents also the current references calculation so that the output active or reactive power can be controlled with oscillations. Simulation results are shown to demonstrate the strategy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|