Integrated process control approach in 2nd-order dynamic processes

This article considers an integrated process control approach that integrates SPC with EPC.The approach is used to monitor the complex system simulation for the manufacturing process comprising the second-order dynamic process and the steady-state disturbance ARMA(1,1).Its key is the design of EPC controller.The common model of EPC is provided,after analy-sis of the MMSE and PID controllers'state-space models by state space method.At last,the effectiveness of the scheme is veri-fied through comparison the performance of MMSE,PI controllers and the proposed controller in this paper.