Title :
Modelling and operating characteristics of direct drive wind farm connecting to power grid
Author :
Gao, Feng ; An, Ning ; Su, Feng ; Zhu, Ninghui
Author_Institution :
China Electr. Power Res. Inst., Beijing, China
Abstract :
The electromechanical transient model of direct-drive wind farm is built through the reasonable simplification of electromagnetic transient model and its engineering application is realized through power system analysis software package (PSASP) user-defined (UD) model widely used in China. The transient characteristics of direct-drive wind farm connecting to power grid are acquired by combining theory with example analysis especially low voltage ride through (LVRT). Simulative result shows that the voltage of bus which wind farm access and frequency of power system is effect by the wind farm; Characteristic of LVRT can improve the level of frequency stability of power system. Reactive power compensation device and conventional power supplies who have frequency modulation ability must be installed, which can reduce influence on power grid.
Keywords :
EMTP; power grids; power system simulation; wind turbines; direct drive wind farm; electromagnetic transient model; electromechanical transient model; engineering application; frequency modulation ability; frequency stability; low voltage ride through; operating characteristics; power grid; power supplies; power system analysis software package; power system frequency; reactive power compensation device; transient characteristics; user-defined model; Analytical models; Power system stability; Transient analysis; Wind farms; Wind turbines; Direct-drive wind farm; LVRT; Modelling; Operating Characteristics; PSASP;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6057555