CPS (control performance standard) can be a clear assessment of the effect of control area in a long time on the grid frequency. The superiority of the interconnection of power grid can be given full play. Thermal power unit is the main force in AGC, but its dynamic part is complex. In the design of control strategies in the CPS, the balance of plant and scheduling client-side is an important research topic. This paper try to give some valuable suggestions for further optimization of machine network reference coordinate control strategy through some practical cases.