-
作者:Mousavi, S.; Guay, M.
作者单位:Queens University - Canada
摘要:In this article, a low-power multi-high-gain observer (low-power MHGO) is proposed, where multiple low-power observers of order 2n-2 are used to improve the transient response of HGOs, as well as reducing their sensitivity to high-frequency measurement noise. The MHGO methodology is applied to low-power observers to aggregate the advantages of the traditional HGO, low-power HGO, and MHGO. It is shown that there exists a combination of the unknown parameters for which the weighted estimated sta...
-
作者:Wang, Siyuan; Duan, Haibin; Zheng, Gang; Ping, Xubin; Boutat, Driss; Polyakov, Andrey
作者单位:Beihang University; Beihang University; Xidian University
摘要:The invariant ellipsoid method is aimed at minimization of the smallest invariant and attractive set of a control system operating under bounded external disturbances and parametric uncertainties. This article extends this technique to a class of the so-called generalized homogeneous system. The generalized homogeneous optimal (in the sense of invariant ellipsoid) controller allows further improvement of the control system providing a faster convergence and smaller overshoots. Theoretical resu...
-
作者:Fan, Ziye; Wu, Xiaoqun; Mao, Bing; Lu, Jinhu
作者单位:Wuhan University; Shenzhen University; Beihang University; Zhongguancun Laboratory
摘要:The conditions under which topological variations in networked linear dynamical systems can be discerned from their outputs are investigated. The output-indiscernible space is completely characterized without conditions imposed on the topology matrix. It is demonstrated that a topological change can be output-indiscernible even if the original and the altered topology matrices share no common eigenvalues. Furthermore, the necessary and sufficient condition for output discernibility is proposed...
-
作者:Pacula, Isabella; Oishi, Meeko
作者单位:University of New Mexico
摘要:While many techniques have been developed for chance constrained stochastic optimal control with Gaussian disturbance processes, far less is known about computationally efficient methods to handle non-Gaussian processes. In this article, we develop a method for solving chance constrained stochastic optimal control problems for linear time-invariant systems with general additive disturbances with finite moments and unimodal chance constraints. We propose an open-loop control scheme for multiveh...
-
作者:Yu, Hao; Chen, Tongwen
作者单位:Beijing Institute of Technology; University of Alberta
摘要:This article addresses a networked control problem for nonlinear plants that are subject to several network-induced issues simultaneously, including multiple independent communication channels, time-varying transmission intervals, sensor schedule protocols, large transmission delays, and updating disorder. A new indicator, the maximum number in updating disorder, is proposed to evaluate the intensity of updating disorder. Then, to describe the complicated relationship between transmission and ...
-
作者:Geng, Wen-Tao; Lin, Chong; Chen, Bing; Wang, Qing-Guo
作者单位:Qingdao University; Beijing Normal University; Beijing Normal-Hong Kong Baptist University
摘要:This technical note studies the analysis and control problem of rectangular descriptor systems (RDSs). First, we present the state-equivalent form of RDSs using the left (right) inverse of a matrix and demonstrate its equivalence to the original system in terms of admissibility. Subsequently, we introduce a minimum-order compensator (MOC) and establish a series of rank criteria for its application. The MOC is utilized to ensure that the closed-loop system is generalized regular, impulse-free, ...
-
作者:Ochoa, Daniel E.; Poveda, Jorge I.
作者单位:University of California System; University of California San Diego
摘要:Multitime scale techniques, such as singular perturbations and averaging theory, have played an important role in the development of distributed Nash equilibrium seeking algorithms for network systems. Such techniques rely on the uniform asymptotic stability properties of the dynamics that evolve in each of the time scales of the closed-loop system. When such properties are absent, the synthesis of multitime scale Nash equilibrium-seeking algorithms is more challenging and it requires addition...
-
作者:Xu, Wenqi; Wang, Tong; Qiu, Jianbin; Liu, Xiaoping
作者单位:Harbin Institute of Technology; Lakehead University
摘要:This article concentrates on the game-based optimal event-triggered control problem for a class of multi-input nonlinear continuous-time systems. The main objective is to improve the system performance. Furthermore, the optimal event-triggered conditions are derived to maximize the intersampling intervals. To simultaneously consider the optimality of control signals and event-triggered conditions, a novel two-layer game framework with redefined cost functions is developed. In the first layer, ...
-
作者:Varkonyi, Peter L.
作者单位:Budapest University of Technology & Economics
摘要:Reliable quasi-static object manipulation and robotic locomotion require the verification of the stability of equilibria under unilateral contacts and friction. In a recent paper, Posa et al. (2016) demonstrated that sums-of-squares (SOS) programming can be used to verify the Lyapunov stability of planar systems via Lyapunov's direct method if impacts are inelastic. However, this method appears to be too conservative to verify the stability of some remarkably simple examples. In this article, ...
-
作者:Wang, Hongxia; Zhang, Huanshui; Li, Lin; Fu, Minyue
作者单位:Shandong University of Science & Technology; Shandong Agricultural University; Southern University of Science & Technology; Southern University of Science & Technology
摘要:This article is concerned with linear quadratic regulation (LQR) and stabilization problems for discrete-time stochastic systems with multiple input channels and input delays. In comparison with single-input-channel problems, a key difficulty, induced by the different delays in different input channels, is that the information sets for multiple controllers are required to be asymmetric and coupled. A novel technique, referred to as orthogonal decomposition-reorganization, is proposed to conque...