Intelligent and optimal control of energy saving of gas boiler group

An intelligent and optimal control strategy of energy saving for heat supplying process under four gas boiler group run conditions in a residential district is introduced in this paper. The combustion under optimal NG-air ratio is ensured by means of compound control of feed-forward and feedback. According to the empirical data curves of output and return water temperature in various weather and climate, a intelligent logical controller, designed on the basis of imitating human problem solving to deal with boiler operation, respectively adjusted the NG and water circulation. What´s more, to keep boilers run under efficient state with rated load, the tracking Time-Discrete-Control (TDC) and the optimization program of boiler group were further developed. The impact of the energy saving is clearly visible in the operational data of boiler group.