SWITCHING CONTROL BY PHASE TRAJECTORY
Keywords:
Switching controllers, phase trajectory, qualitative control, fuzzy interpolative controller, sliding mode.Abstract
The paper is discussing the instability that can occur in the case
of switching controllers. The qualitative analyze of the switching
phenomenon is performed by means of the phase trajectory of
the difference between the controllers outputs. The significant
regions of the phase plane are investigated. The second and the
fourth quadrants are recommended for switching, while the first
and the third quadrants must be avoided. An analogy with the
sliding mode method is proposed
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