TY - GEN
T1 - Characteristics research of wind power generator interfaced to grid via solid state transformer with energy storage device
AU - Wang, Qingshan
AU - Liang, Deliang
N1 - Publisher Copyright:
© 2015 European Union.
PY - 2015/6/11
Y1 - 2015/6/11
N2 - With the installed volume on wind farm increasing constantly, the impact of wind electricity on public grid has become increasingly evident, which superimposes more and more importance on the study on wind power integration to grid. A solid state transformer (SST) based induction wind power generator grid-connected system is put forward in this paper. The lumped parameter mathematical model of the induction wind power generator, input side controlled rectifier, output side inverter and middle stage high-frequency transformer are constituted respectively. System working principle at power flowing forward and backward status are analysed and the control strategy of each module is designed afterwards. A system simulation model is built based on topologies and control strategies discussed above. It is seen from the results that the newly designed system is of good working performance. The grid connecting current is sinusoidal and the unity power factor control is achieved. Output voltage and DC bus voltage are stable during the operating process. During voltage sag caused by grid faults, energy storage devices connected to the SST discharge to sustain the low-voltage DC bus voltage, enhancing the system low voltage ride through (LVRT) capability.
AB - With the installed volume on wind farm increasing constantly, the impact of wind electricity on public grid has become increasingly evident, which superimposes more and more importance on the study on wind power integration to grid. A solid state transformer (SST) based induction wind power generator grid-connected system is put forward in this paper. The lumped parameter mathematical model of the induction wind power generator, input side controlled rectifier, output side inverter and middle stage high-frequency transformer are constituted respectively. System working principle at power flowing forward and backward status are analysed and the control strategy of each module is designed afterwards. A system simulation model is built based on topologies and control strategies discussed above. It is seen from the results that the newly designed system is of good working performance. The grid connecting current is sinusoidal and the unity power factor control is achieved. Output voltage and DC bus voltage are stable during the operating process. During voltage sag caused by grid faults, energy storage devices connected to the SST discharge to sustain the low-voltage DC bus voltage, enhancing the system low voltage ride through (LVRT) capability.
KW - Energy storage device
KW - Induction generator
KW - Low voltage ride through (LVRT)
KW - Power quality
KW - Solid state transformer (SST)
KW - Wind power
UR - https://www.scopus.com/pages/publications/84943414637
U2 - 10.1109/EVER.2015.7113014
DO - 10.1109/EVER.2015.7113014
M3 - 会议稿件
AN - SCOPUS:84943414637
T3 - 2015 10th International Conference on Ecological Vehicles and Renewable Energies, EVER 2015
BT - 2015 10th International Conference on Ecological Vehicles and Renewable Energies, EVER 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Ecological Vehicles and Renewable Energies, EVER 2015
Y2 - 31 March 2015 through 2 April 2015
ER -
