Title :
The Dynamic Model of Doubly-fed Induction Generator Based on Wind Turbine
Author :
Yao, Xingjia ; Sui, Hongxia ; Xing, Zuoxia ; Liu, Dayong
Author_Institution :
Shenyang Univ. of Technol., Shenyang
Abstract :
According to grid codes issued by utilities, tripping of wind turbines following grid faults is not allowed, and it is necessary to provide reactive power support to grid sometime. So this paper sets up a complete DFIG dynamic model, including the generator model, converter model and converter protection, grid model etc. to study the transient characters. The method of sensorless direct torque control (DTC) and model referencing adaptive system (MRAS) method were used in the converter control. At last, the results of simulation on DFIG transient power control performance based on 1.5 MW SUT-1500 wind turbine prototype indicated that the DTC control and the MRAC principle improve the system phase-ground fault ride-through capacity ,and fulfil the dynamic regulating of the DFIG external fault.
Keywords :
asynchronous generators; machine control; model reference adaptive control systems; torque control; wind turbines; DFIG dynamic model; DTC; doubly-fed induction generator; model referencing adaptive system; power 1.5 MW; reactive power support; sensorless direct torque control; wind turbine; Character generation; Induction generators; Mesh generation; Power system modeling; Power system protection; Reactive power; Sensorless control; Torque control; Wind energy generation; Wind turbines; DFIG; DTC; Dynamic model;
Conference_Titel :
Automation and Logistics, 2007 IEEE International Conference on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-1531-1
DOI :
10.1109/ICAL.2007.4338717
