论文标题
QFT方法可靠的双速率控制系统
A QFT approach to robust dual-rate control systems
论文作者
论文摘要
双速率控制系统是一个混合系统,该系统由具有两个采样频率的连续时间和离散时间元素组成。在这项工作中,开发了基于定量反馈理论(QFT)的新频域分析和设计方法,以应对稳健的稳定性和跟踪规范。跟踪规格不仅在离散时间内,而且在连续时间内都考虑到允许对样本间行为(波纹)进行精确描述,并表征下低于Nyquist频率的频率。已经开发了一些说明性的例子和一个案例研究。
A dual-rate control system is a hybrid system composed of continuous-time and discrete-time elements with two sampling frequencies. In this work, a new frequency domain analysis and design approach, based on the Quantitative Feedback Theory (QFT) is developed, to cope with robust stability and tracking specifications. Tracking specifications are considered not only in the discrete-time but also in continuous-time, that allow a precise description of the intersample behavior (ripples), and characterization of frequencies below and beyond the Nyquist frequency. Several illustrative examples and a case study has been developed.