关键词: 零处理, LPV, 容错控制, 联合式, 双层凸多面体

Abstract: A fault tolerant method of combined double-layer convex polyhedron linear parameter varying (LPV) based on the zero processing is proposed in addressing the problem of pitch-angle sensors malfunction. The traditional LPV model is convert to the double-layer LPV model by optimizing its convex polyhedron vertices at first. Then, the combined thinking and zero processing are employed to design each sub-controller of the system, and the final controller is obtained from the combination of these sub-controllers. This approach solves the fault-tolerant control problem of pitch angles malfunction with reducing the linear deviation of LPV model in a concise way, which guarantees the stable operation of the wind turbine.

Key words: Zero processing, LPV, fault tolerant control, combined, double-layer convex polyhedron