In thermal power plant of burning blast furnace gas

the influence of blast furnace production upon the operation of boiler was comparatively large

making the combustion in said boiler to be very unstable. The controlling effectiveness of PID controllers commonly used at present in said thermal power plant isn’t very ideal. For this reason

a study on furnace temperature control by using fuzzy controller has been carried out. The simulation test shows that the controlling effectiveness of fuzzy controller is better than that of PID controller. At the same time

the problems existing in fuzzy controller for furnace temperature control of boilers and possible solutions thereof have also been investigated.