检索结果-内蒙古大学图书馆

Some Considerations on Simplifying Simulation Procedures: Real Time switching algorithms Case Study

IFAC Proceedings Volumes 2012年第6期45卷 1716-1721页

作者： C. Lupu D. Popescu R. Gyorodi Politehnica University of Bucharest Bucharest 060042 ROMANIA (Tel: +4021-402-9167) Politehnica University of Bucharest Bucharest 060042 ROMANIA (Tel: +4021-402-9167 University of Oradea Oradea 410096 ROMANIA (Tel: +40-259-408111

The paper starts with a series of experiments to reduce the hardware and software effort required for a simulation process using an identified model. Since the results are consistent, based on the observations of the data related relationship to the minimum necessary is proposed for a simulation that leads to a neglectable error. This relationship is used in the case study made on a multiple model control type architecture that aims to switch smooth control algorithms. The proposed system is implemented and tested in real-time software for a nonlinear plant laboratory.

关键词： Real-time Simulation Discrete time switching algorithms Nonlinear control

来源：评论

学校读者我要写书评

暂无评论

Domestic heat generation and distribution with time-variant receding horizon control

Domestic heat generation and distribution with time-variant ...

引用

20th World Congress of the International-Federation-of-Automatic-Control (IFAC)

作者： Loehr, Yannik Moennigmann, Martin Ruhr Univ Bochum Automat Control & Syst Theory Bochum Germany

Modern domestic heating systems combine conventional heat sources with more advanced devices such as heat pumps or energy storages. Due to the existence of multiple sources and sinks, the question arises, how to operate these systems in an economically optimal fashion. It is natural to pose this question as an optimal control problem that is solved on a receding horizon, where the receding horizon allows to account for periodically updated predictions of the heat demand and energy prices. These periodic updates imply, however, the optimal control problem has time-variant constraints and a time-variant cost function. We demonstrate the resulting receding horizon optimal control scheme can be solved and optimizes the heat flows in a domestic heating system that comprises a heat pump, a thermal storage and an auxiliary heater. Our results show the predictive controller is able to anticipate and compensate for heat shortages due to heat pump blocking times. (C) 2017, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

关键词： receding horizon control control applications switching algorithms time-variant systems heat flows

来源：评论

学校读者我要写书评

暂无评论

Domestic heat generation and distribution with time-variant receding horizon control

引用

IFAC-PapersOnLine 2017年第1期50卷 4191-4196页

作者： Löhr Y. Mönnigmann M. Automatic Control and Systems Theory Ruhr-Universität Bochum Bochum Germany

关键词： control applications heat flows receding horizon control switching algorithms time-variant systems

来源：评论

学校读者我要写书评

暂无评论

Nonlinear Unfalsified Adaptive Control with Bumpless Transfer and Reset

引用

IFAC-PapersOnLine 2016年第18期49卷 1066-1072页

作者： Patil, Sagar V. Sung, Yu-Chen Safonov, Michael G. Department of Electrical Engineering - Systems University of Southern California Los AngelesCA90089-2563 United States

The BHMT (Battistelli-Hespanha-Mosca-Tesi) reset mechanism which is a new scheme to control time-varying plant under the framework of unfalsified adaptive control is investigated. The reset condition is modified based on the gains of the control system components, making it adaptive, free of uncertain parameters, and practically implementable in a switching algorithm. The framework of generalized bumpless transfer system is established for switching of a controller. Performance including stability is proved given that the adaptive stabilization problem is feasible. The proposed switching algorithm is nonlinear time-varying and it can control nonlinear time-varying plant using nonlinear controllers. © 2016

关键词： Adaptive control systems Asymptotic stability Controllers Stabilization Time varying control systems Uncertainty analysis Adaptive stabilization Bumpless transfer Non linear controllers Reset switching algorithms Uncertain parameters Unfalsified adaptive control Unfalsified control

来源：评论

学校读者我要写书评

暂无评论

A switching periodic adaptive control approach for time-varying parameters with unknown periodicity

引用

INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING 2015年第12期29卷 1526-1538页

作者： Yu, Miao Huang, Deqing Zhejiang Univ Coll Elect Engn Hangzhou 310027 Zhejiang Peoples R China Univ London Imperial Coll Sci Technol & Med Dept Aeronaut London SW7 2AZ England

Periodic variations are encountered in many real systems, which can exist in the system parameters, as a disturbance or as the tracking objective. However, there exist a great number of situations where the periodicity is not known in advance. Hence, how to compensate for the effects of time-varying parameters with unknown periodicity remains a challenge for the controller design. In this paper, we proposed a switching periodic adaptive control approach for continuous-time nonlinear parametric systems with periodic uncertainties in which the period and bound are not known in advance. We utilized a fully saturated periodic adaptation law to identify the unknown periodic parameters in a pointwise manner. In addition, we provided a logic-based switching scheme to estimate the unknown period and bound online simultaneously. By virtue of Lyapunov stability analysis, we show that the asymptotic convergence can be guaranteed irrespective of the initial conditions. Finally, we carried out numerical simulations to demonstrate the efficacy of the switching periodic adaptive control algorithm. The proposed approach can be applied to parametric nonlinear systems with time-varying parameters of unknown periodicity irrespective of the types of periodic uncertainties. Copyright (C) 2015 John Wiley & Sons, Ltd.

关键词： switching algorithms periodic adaptive control unknown period parametric nonlinear systems

来源：评论

学校读者我要写书评

暂无评论

switching adaptive learning control for nonlinearly parameterized systems with disturbance of unknown periods

引用

INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL 2015年第9期25卷 1327-1337页

作者： Yu, Miao Huang, Deqing Zhejiang Univ Coll Elect Engn Hangzhou 310027 Zhejiang Peoples R China Univ London Imperial Coll Sci Technol & Med Dept Aeronaut London SW7 2AZ England

In this paper, a logic-based switching adaptive learning control mechanism is proposed for a class of nonlinearly parameterized systems with disturbance of unknown periods. The switching algorithms include two parts: one is to stabilize the nonlinearly parameterized uncertainties, the other is to learn the periodic bounded disturbance. An adaptive control method with fully saturated periodic adaptation law is presented to take advantage of the periodic and bounded property of the disturbance. It is shown that under the proposed control designs, the asymptotic convergence is ensured irrespective of initial conditions with all the signals in the closed-loop system bounded. An illustrative example is given to show the validity of the switching adaptive learning control. Copyright (c) 2014 John Wiley & Sons, Ltd.

关键词： switching algorithms nonlinear parametrization learning control unknown period

来源：评论

学校读者我要写书评

暂无评论

Higher-Order Sliding-Mode Control for Binary Input by Using Implicit Lyapunov Function

引用

IFAC-PapersOnLine 2015年第11 11期48卷 866-871页

作者： Nonaka, Ryo Yamashita, Yuh Tsubakino, Daisuke Graduate School of Information Science and Technology Hokkaido University SapporoHokkaido Japan

We propose a binary input controller for higher-order sliding-mode control. The proposed method extends the continuous controller for higher-order sliding-mode control to applicable for a system with a binary input constraint. Under the binary input constraint, the controller for the system can only use two input such as ±1. We design a binary input controller for the system based on the implicit Lyapunov function method. We also reduce the chattering phenomenon on the sliding hypersurface except on the origin. The reduction mechanism provides strong effect for the chattering reduction under three-valued input constraint ±1 and zero, which is demonstrated in the simulation in this paper. © 2015

关键词： Sliding mode control Codes (symbols) Controllers Lyapunov functions Nonlinear systems Robust control Chattering phenomenon Chattering reductions Continuous controller Higher order sliding mode controls Implicit Lyapunov function Reduction mechanisms switching algorithms switching surfaces

来源：评论

学校读者我要写书评

暂无评论

Rejection of Multiharmonic Disturbance Approach Based on Simple Adaptive Control Principle

引用

IFAC Proceedings Volumes 2013年第11期46卷 408-413页

作者： Alexey A. Bobtsov Sergey A. Kolyubin Anton A. Pyrkin Department of Control Systems and Informatics Saint Petersburg National Research University of Information Technologies Mechanics and Optics Kronverkskiy pr. 49 St. Petersburg 197101 Russia Control of Complex Systems Lab. Institute for Problems of Mechanical Engineering RAS Bolshoy pr. V. O. 61 St. Petersburg 199178 Russia Department of Enginnering Cybernetics Norwegian University of Science and Technology NO-7491 Trondheim NORWAY

This paper deals with control algorithms development for output stabilization of the parametrically uncertain linear plant of unknown relative degree. Simple adaptive control paradigm lies in the basis of proposed approach. Controller was supplemented with the switching-based scheme of substitution of multiharmonic external disturbance frequencies' estimations that improves controller performance without its significant complication. Stability analysis of the closed-loop hybrid system was conducted and corresponding conditions on switching parameters were stated.

关键词： Simple adaptive control output feedback robust control disturbance rejection switching algorithms

来源：评论

学校读者我要写书评

暂无评论

A switching Q-Learning Approach Focusing on Partial States

引用

IFAC Proceedings Volumes 2013年第9期46卷 982-986页

作者： Keinosuke Matsumoto Taisuke Ikimi Naoki Mori Graduate School of Engineering Osaka Prefecture University Osaka Japan

Recently, applications of multiagent system are expected from the viewpoint of parallel and distributed processing of systems. Reinforcement learning attracts attention as an implementing method of the multiagent systems. However, there is a problem that the more the number of agents to deal with increases, the slower the speed of learning becomes. To solve this problem, we propose a new reinforcement learning that can learn quickly and reduce the amount of memory. It tries to increase learning efficiency of hunter games by paying attention to partial state of two agents among a large number of agents.

关键词： Machine learning Q-Learning switching algorithms State space Agents Hunter game

来源：评论

学校读者我要写书评

暂无评论

Control of Nonlinear Systems Using Multiple Model Black-Box Identification

引用

IFAC Proceedings Volumes 2013年第23期46卷 582-587页

作者： Sergey Kolyubin Denis Efimov Vladimir Nikiforov Alexey Bobtsov Department of Control Systems and Informatics Saint Petersburg National Research University of Information Technologies Mechanics and Optics Kronverkskiy pr. 49 St. Petersburg 197101 RUSSIA Department of Engineering Cybernetics Norwegian University of Science and Technology NO-7491 Trondheim NORWAY Non-A INRIA — LNE Pare Scientique de la Haute Borne 40 avenue Halley Bat. A Park Plaza 59650 Villeneuve dAscq FRANCE Control of Complex Systems Lab. Institute for Problems of Mechanical Engineering RAS Bolshoy pr. V.O. 61 St. P etersburg 199178 RUSSIA

The paper is devoted to development of control algorithms for nonlinear paramet-rically uncertain systems. Original system dynamics is approximated by a set of local NARX models combined by a special mixing rule. Algorithm for local models' parameters estimation and structure adjustment has been developed. Proposed approach allows straightforward designing of the combined feedforward/feedback controller.

关键词： Identification NARX model switching algorithms feedforward control

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：