| Abstract: |
| Increased penetration of wind energy systems has serious concerns on power system stability. In spite of
several advantages, doubly fed induction generator (DFIG) based wind energy systems are very sensitive to
grid disturbances. DFIG system with conventional vector control is not robust to disturbances as it is based
on PI controllers. The objective of this paper is to design a new vector control that is robust to external
disturbances. To achieve this, inner current loop of the conventional vector control is replaced with sliding
mode control. In order to avoid chattering effect and achieve finite time convergence, the control gains are
selected based on positive semi-definite barrier function. The proposed barrier function adaptive sliding
mode (BFASMC) is evaluated by testing it on a benchmark multi-machine power system model under various
operating conditions. The simulated results show that the proposed method is robust to various disturbances. |
| Key words: Doubly fed induction generator (DFIG), Wind power generation, Sliding mode control, Robust control |
| DOI：10.1186/s41601-019-0119-3 |
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| Fund: |
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