IEEE Transactions on Industry Applications · 2007 · 825 citations · 10 references
EngineeringPower ElectronicsSupercapacitor Energy StorageWind TurbinesRenewable Energy StorageConversion SystemConventional TopologiesPower System ControlWind EnergyElectrical EngineeringWind Power GenerationEnergy StorageSupercapacitorEnergy Storage SystemPower System DynamicSupercapacitorsHigher Penetration LevelsSmart GridEnergy Management
Higher wind energy penetration increases the need to manage turbine intermittency. The study evaluates integrating short‑term energy storage into a doubly fed induction generator to smooth wind‑induced power variations and improve normal and transient performance. A short‑term storage device is integrated into the generator to reinforce the DC bus during transients and enhance LVRT capability. Sizing the storage to the LVRT requirement dampens short‑term power oscillations and yields superior transient performance versus conventional topologies.
As wind energy reaches higher penetration levels, there is a greater need to manage intermittency associated with the individual wind turbine generators. This paper considers the integration of a short-term energy storage device in a doubly fed induction generator design in order to smooth the fast wind-induced power variations. This storage device can also be used to reinforce the dc bus during transients, thereby enhancing its low-voltage ride through (LVRT) capability. The topology is evaluated in terms of its ability to improve the performance both during normal operation and during transients. Results show that when storage is sized based upon the LVRT requirement, it can effectively damp short-term power oscillations, and it provides superior transient performance when compared with conventional topologies
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