title: All-PD control of pure Integrating Plus Time-Delay processes with gain and phase-margin specifications.
abstract: It is well known that PD controller, though yields good servo response, fails to provide satisfactory regulatory response for Integrating Plus Time-Delay (IPTD) processes. On the other hand, using an integral control action generally leads to large overshoot or settling time. To achieve good servo as well as regulatory response, a new all-PD control structure is proposed for IPTD processes in this paper. Design formulas are derived in terms of gain-margin and phase-margin specifications. Numerical examples on the design methodology are presented and experimentally validated on a temperature control process.
authors.affiliation: Department of Electrical Engineering, National Institute of Technology Rourkela, 769008, India. Electronic address: chakraborty.sudipta02@gmail.com.
authors.forename: Sudipta
authors.initials: S
authors.lastname: Chakraborty
authors.affiliation: Department of Electrical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India. Electronic address: sghosh.eee@iitbhu.ac.in.
authors.forename: Sandip
authors.initials: S
authors.lastname: Ghosh
authors.affiliation: Department of Electrical Engineering, National Institute of Technology Rourkela, 769008, India. Electronic address: naskara@nitrkl.ac.in.
authors.forename: Asim Kumar
authors.initials: AK
authors.lastname: Naskar
keywords: Gain-margin; Integrating plant; PID control; Phase-margin; Temperature control plant; Time-delay