LVRT Strategy -based Multi-controller Switching for DFIG

DOI

10.2991/eeeis-17.2017.22How to use a DOI?

Keywords

Doubly-fed induction generation (DFIG), Low voltage ride-through (LVRT), PI controller, Four-level hysteresis current controller (FLHCC), Rotor-side converter (RSC).

Abstract

The RSC is generally controlled by using PI controller, but its narrow bandwidth and slow transient response speed limit the LVRT capability of DFIG. So, a LVRT strategy-based multi-controller switching is proposed in this paper. According to different rotor current setting value, the corresponding control strategy of RSC is implemented. That is, the PI controller is used during normal PCC voltage. However, during PCC voltage sag, the control strategy is switched to FLHCC when the rotor current reaches the first setting value, and a set of resistors is connected into the rotor circuit when the rotor current reaches the second setting value. In addition, the FLHCC implementation, the control strategy switching and the series resistance determination are also introduced in detail. Finally, the feasibility of the proposed LVRT strategy is verified by the dynamic simulation.

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  - Shi-Hong GAO
AU  - Cheng-Xiong MAO
AU  - Dan WANG
PY  - 2017/09
DA  - 2017/09
TI  - LVRT Strategy -based Multi-controller Switching for DFIG
BT  - Proceedings of the 3rd Annual International Conference on Electronics, Electrical Engineering and Information Science (EEEIS 2017)
PB  - Atlantis Press
SP  - 150
EP  - 157
SN  - 2352-5401
UR  - https://doi.org/10.2991/eeeis-17.2017.22
DO  - 10.2991/eeeis-17.2017.22
ID  - GAO2017/09
ER  -