A Synthesis Method of Robust Cascade Control System
Nguyen Van Manh 1, Vu Thu Diep 1, and
Phan Duy Hung 2
1. Department of Automation and Control of Thermal Processes, Hanoi University of Science and Technology, Vietnam
2. Department of Information Technology Specialization, FPT University, Vietnam
2. Department of Information Technology Specialization, FPT University, Vietnam
Abstract—The article presents a general synthesis method of controllers in the cascade system. At first, it determines structure for each of equivalent control loops in the cascade system and imposes robust conditions for these loops. After that, the structures of controllers in the system are defined. Then the proportional coefficients of controllers are retuned based on the “soft characteristic”. Finally, we show an example of using proposed method.
Index Terms—cascade control system, soft characteristic, soft oscillation index
Cite: Nguyen Van Manh, Vu Thu Diep, and Phan Duy Hung, "A Synthesis Method of Robust Cascade Control System," Jounal of Automation and Control Engineering, Vol. 4, No. 2, pp. 111-116, April, 2016. doi: 10.12720/joace.4.2.111-116
Index Terms—cascade control system, soft characteristic, soft oscillation index
Cite: Nguyen Van Manh, Vu Thu Diep, and Phan Duy Hung, "A Synthesis Method of Robust Cascade Control System," Jounal of Automation and Control Engineering, Vol. 4, No. 2, pp. 111-116, April, 2016. doi: 10.12720/joace.4.2.111-116