TY - GEN
T1 - Thermal Behavior of Doubly-Fed Induction Generator Wind Turbine System during Balanced Grid Fault
AU - Zhou, Dao
AU - Blaabjerg, Frede
AU - Lau, Mogens
AU - Tonnes, Michael
PY - 2014/3
Y1 - 2014/3
N2 - Ride-through capabilities of the doubly-fed induction generator (DFIG) during grid fault have been studied a lot. However, the thermal performance of the power device during this transient period is seldom investigated. In this paper, the dynamic model for the DFIG and the influence of the rotor current to the damping time of the stator flux and rotor terminal voltage during the symmetrical grid fault is firstly evaluated. Then, the theoretical analysis for the safety operation area of the power device is given in terms of the various voltage dips and various rotor speeds, in which simulation results are used to verify. Finally, the power loss and the thermal profile are shown at the transient period of the DFIG. It is concluded that, in order to guarantee the same damping time of the stator flux, the serious voltage dip results in the higher power losses as well as the junction temperature fluctuation, and may even damage the rotor converter, if the design is not considered carefully.
AB - Ride-through capabilities of the doubly-fed induction generator (DFIG) during grid fault have been studied a lot. However, the thermal performance of the power device during this transient period is seldom investigated. In this paper, the dynamic model for the DFIG and the influence of the rotor current to the damping time of the stator flux and rotor terminal voltage during the symmetrical grid fault is firstly evaluated. Then, the theoretical analysis for the safety operation area of the power device is given in terms of the various voltage dips and various rotor speeds, in which simulation results are used to verify. Finally, the power loss and the thermal profile are shown at the transient period of the DFIG. It is concluded that, in order to guarantee the same damping time of the stator flux, the serious voltage dip results in the higher power losses as well as the junction temperature fluctuation, and may even damage the rotor converter, if the design is not considered carefully.
U2 - 10.1109/APEC.2014.6803744
DO - 10.1109/APEC.2014.6803744
M3 - Article in proceeding
T3 - I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
SP - 3076
EP - 3083
BT - Proceedings of the 29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014.
PB - IEEE Press
T2 - 29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
Y2 - 16 March 2014 through 20 March 2014
ER -