Dynamic Voltage Restorer (DVR) Improve Operation of DFIG Wind Turbine Under Unbalance Grid Voltage Sags

DOI

10.2991/icmmcce-17.2017.153How to use a DOI?

Keywords

Dynamic Voltage Restorer(DVR); Doubly Fed Induction Generator(DFIG); Grid Voltage Sags; Operation; Resonance Integrator(RI)

Abstract

In view of the doubly-fed wind power generator (DFIG) under grid voltage unbalance, double frequency disturbance component will cause a series of electrical and mechanical problems. A novel DFIG-DVR system is proposed to ride-through unbalance grid voltage conditions, the series coupled DVR of which always maintain the constant of stator voltage, isolating primary causes of problems for grid voltage unbalanced fault. In the process of fault operation, DFIG can still achieve the target for rotor side converter to accomplish decoupled power control and grid side converter to maintain constant on dc voltage. DFIG-DVR system model was established by MATLAB/Simulink. Comparison and analysis are conducted about whether DVR is switched under the condition of unbalanced grid voltage. The simulation results show that the proposed control scheme can realize low voltage ride-through(LVRT) operation of DFIG under the conditions of unbalanced grid voltage.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaojie Wang
AU  - Junqing Chen
AU  - Fan Yang
AU  - Yongfeng Ren
PY  - 2017/09
DA  - 2017/09
TI  - Dynamic Voltage Restorer (DVR) Improve Operation of DFIG Wind Turbine Under Unbalance Grid Voltage Sags
BT  - Proceedings of the 2017 5th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering (ICMMCCE 2017)
PB  - Atlantis Press
SP  - 853
EP  - 859
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmcce-17.2017.153
DO  - 10.2991/icmmcce-17.2017.153
ID  - Wang2017/09
ER  -