Recently, the fuzzy control is widely used as a tool for constructing automatic control systems which can replace the manual operation of largescale nonlinear plants. In most applications of the fuzzy control, however, it is hard to construct knowledge base and to meet the requirement of the operation time. In some real time control, the fuzzy control scheme requires too much computing time for fuzzification, inference, and defuzzification. To reduce the computing time, there may be two alternatives : the development of a new operation algorithm and the design of high-speed fuzzy hardware.
In this thesis, to solve the problem of reducing the fuzzy operation time, we propose a new general purpose fuzzy hardware scheme which has merits of generality and extensibility. Also, we design a fuzzy controller for automatic start-up and shut-down of the power plant boiler system. The validity is shown via computer simulation. Finally, we verify the proposed fuzzy hardware by applying to the automatic start-up control of boiler system.
