A Stability Determining Algorithm on Fuzzy Rules Based on the Theory of Phase Track

Phase plane analyzing approach is an intuitive graphical way for the analysis of fuzzy control system, and it can invert the movement of a first and second order system into the track of position and velocity in the phase plane, which is very important to further improve the whole system. However, it can´t go without expertise and it is vague in the phase track drawing for stability determination. In the paper, an algorithm based on phase plain analyzing approach will be put forward to achieve the determination of fuzzy control stability automatically.