Design of a new multivariable fuzzy controller and its application

Most fuzzy control method is proper for the little time delay objects, but has worse effects to the multivariable large time delay ones. A new multivariable fuzzy controller is presented in this paper through employing stochastic related factors which are based on multivariable fuzzy condition decompose theorem. Using author's analysis method based on probability and statistics theory, the load control system of coal-fired generating unit is studied. And the type multivariable fuzzy controller is applied in the control system. The theory and simulation results show that this type fuzzy controller is fitted into the multivariable complex system with the large time delay.