QFT Fractional-order Controllers for Unstable Plants with Only One Unstable Pole

摘要：

This paper presents the design of a robust fractional order controller for unstable plants with only one unstable pole based on quantitative feedback theory (QFT) using Particle Swarm Optimization (PSO). In this work, a fractional-order compensator, with a flexible controller structure, is introduced into the QFT design to give a better approximation of optimum open loop in Nichols. The fractional order controller is designed for not only minimum phase system but also uncertain non-minimum phase and unstable plants in QFT. It has been demonstrated that the fractional order controller can provide smaller high frequency gain than the integer order controller due to its extra tunable parameters.

关键词： Fractional Order Control Quantitative Feedback Theory Automatic Loop Shaping Particle Swarm Optimization Loop Shaping

作者: Li Meng Fen Diao

作者单位: Department of Information Engineering, Shenyang University, Shenyang 110044, China

会议类型: 国际会议

会议名称: The 31st Chinese Control Conference(第三十一届中国控制会议)

会议地点: 合肥

会议语种:英文

页码: 4716-4721

在线出版日期: 2012-07-01（万方平台首次上网日期，不代表论文的发表时间）