期刊
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
卷 4, 期 4, 页码 954-959出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSTE.2013.2257898
关键词
Frequency control; FPCWT; inertia; PMSG; power smoothing; primary frequency control; wind power
资金
- multitude of Nordic power companies
- Swedish Energy Agency within Elforsk's research program Vindforsk-III
Conventionally operated full power converter wind plants show high short-term power output variability caused by variable winds, and does not contribute to the power systeminertia due to the decoupled generator speed and grid frequency. There is, however, abundant inertial resources in wind plant rotors for both smoothing of output power and for synthetic inertia contribution. Together with added frequency controlling functionality, this could facilitate inclusion of wind power in islanding systems, enabling greater system loads and enhancing power system stability. This paper describes modeling of power smoothing and frequency controlling wind plants and assesses different control strategies as well as the grid frequency performance gains achievable over hydro powered islanding systems and over islanding systems incorporating both hydro power and conventional wind plants. The results show that wind plant power output could be smoothed in the short time frame, and support frequency in both primary and secondary frequency control timescales including droop functionality.
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