Zhao Shen, Gao Zhiqiang
Center for Advanced Control Technologies, Fenn College of Engineering, Cleveland State University, Cleveland, OH 44115, United States.
Center for Advanced Control Technologies, Fenn College of Engineering, Cleveland State University, Cleveland, OH 44115, United States.
ISA Trans. 2014 Jul;53(4):882-8. doi: 10.1016/j.isatra.2013.09.013. Epub 2013 Oct 3.
Industrial processes are typically nonlinear, time-varying and uncertain, to which active disturbance rejection control (ADRC) has been shown to be an effective solution. The control design becomes even more challenging in the presence of time delay. In this paper, a novel modification of ADRC is proposed so that good disturbance rejection is achieved while maintaining system stability. The proposed design is shown to be more effective than the standard ADRC design for time-delay systems and is also a unified solution for stable, critical stable and unstable systems with time delay. Simulation and test results show the effectiveness and practicality of the proposed design. Linear matrix inequality (LMI) based stability analysis is provided as well.
工业过程通常是非线性、时变且不确定的，事实证明，自抗扰控制（ADRC）是解决这些问题的有效方法。在存在时间延迟的情况下，控制设计变得更具挑战性。本文提出了一种ADRC的新颖改进方法，以便在保持系统稳定性的同时实现良好的抗干扰能力。结果表明，所提出的设计对于时滞系统比标准ADRC设计更有效，并且也是具有时滞的稳定、临界稳定和不稳定系统的统一解决方案。仿真和测试结果表明了所提出设计的有效性和实用性。同时还提供了基于线性矩阵不等式（LMI）的稳定性分析。
