A novel design method was proposed on the basis of distributed deviation for consensus pass temperature control on industrial feed heaters

in order to overcome limitations of centralized balance control schemes on pass temperatures. In the method

only temperature deviations of adjacent passes were used as input in control algorithm to achieve uniform temperature across all passes while maintaining constant total feed flow. Compared to the traditional centralized balance control

this distributed deviation control scheme by using only temperature information of adjacent passes was more cost effective especially for cases with large number of passes. Sufficient conditions for the distributed deviation controller on industrial feed heaters with time delay and random disturbance were derived by Lyapunov function. The simulation results illustrated that the new controller design method was effective and the distributed deviation control scheme was feasible even for a class of industrial feed heaters with mismatched models.