Application of Adaptive Fuzzy PID Controller for Matrix Converter

Matrix converter is a studied hot spot of frequency-changing control in the field of power electronics. And adaptive fuzzy PID control is a hot spot of intelligent control research. The fitting combination of both is a new research direction. This paper briefly describes the working principle, space vector modulation strategy of matrix converter, characteristics of fuzzy control, and the basic principle of adaptive fuzzy PID. It also comprehensively gave out a fuzzy rule table of three parameters of PID. The space vector modulation strategy for matrix converter was realized with S-functions. The three simulation models of matrix converter were set up with power system blockset, etc. of SIMULINK under unbalanced input voltages. The simulated results have shown that this intelligent control method is feasible and it can effectively raise the output waveform qualities of matrix converter under unbalanced input voltages.