在工业现场由于条件的限制 ,很多过程变量需要的检测频率并不一样 ,从而带来了多频多变量的控制问题。介绍了推出的一种新的多频多变量DMC预测控制算法 ,并且进一步用DMC方法推导多频多变量系统的预测方程、最优控制律及系统的内模结构。最后 ,通过仿真结果证实了这种算法的有效性 Due to the limited conditions in industrial sites, many process variables need different detection frequencies, which brings the problem of multi-frequency and multi-variable control. Introduced a new multi-frequency multivariable DMC predictive control algorithm introduced, and further using the DMC method to derive the prediction equations of multi-frequency multivariable systems, the optimal control law and the system’s internal model structure. Finally, the simulation results confirm the effectiveness of this algorithm