检索结果-内蒙古大学图书馆

12th IEEE International Conference on control and Automation (ICCA)

作者： Wang, Haijing Xie, Lihua Liu, Shuai Xu, Juanjuan Nanyang Technol Univ Sch Elect & Elect Engn Nanyang Ave Singapore 639798 Singapore

ISBN: (纸本)9781509017386

Indoor Air Quality (IAQ) along with the call for energy-saving has become a hot research topic in recent years. Low ventilation rate consumes less energy but may result in poor air quality, causing health issues for occupants in the long run. Conventional ventilation strategies often result in imbalance in multiple zones served by one HVAC system considering different number of occupants in each zone. This paper presents a model-based control of CO, concentration for multi-zone ACB air-conditioning systems aiming at achieving a high IAQ level. A multi-zone CO2 concentration model is established which takes into account the coupling between neighbour zones. Genetic Algorithm (GA) and Least Squares Method (LSM) are used for parameter identification of the CO2 model. A control strategy is proposed for the intake airflow rate so that the desired level of the CO2 concentration can be achieved in the presence of varying number of occupants. Simulations are given to validate the proposed control design.

关键词： IAQ Multi-zone room CO2 concentration model-based control Intake airflow rate

来源：评论

学校读者我要写书评

暂无评论

model-based control System Design of Brushless Doubly Fed Reluctance Machines Using an Unscented Kalman Filter

引用

ENERGIES 2021年第24期14卷 8222页

作者： Benomar, Yassine Croonen, Julien Verrelst, Bjoern Van Mierlo, Joeri Hegazy, Omar Vrije Univ Brussel VUB Mobil Logist & Automot Technol Res Ctr MOBI Dept Elect Engn & Energy Technol ETEC Fac Engn B-1050 Brussels Belgium Flanders Make B-3001 Heverlee Belgium Vrije Univ Brussel VUB MECH Dept Pl Laan 2 B-1050 Brussels Belgium

The Brushless Doubly Fed Reluctance Machine (BDFRM) is an emerging alternative for variable speed drive systems, providing a significant downsizing of the power electronics converter. This paper proposes a new view on the machine equations, allowing the reuse of the standard control system design for conventional synchronous and asynchronous machines: a cascade control system with an inner current control- and outer speed control loop. The assumptions and simplifications made on the machine model allow for a simple, model-based approach to set the controller gains in a brushless doubly fed machine drive system. The cascade control scheme is combined with an Unscented Kalman Filter as a state observer, capable of estimating the load torque and losses. The performance of the proposed control system design is checked in simulation and tested in real-time on a low power BDFRM prototype.

关键词： electrical drives control system design model-based control Unscented Kalman Filter electrical machines reluctance drives

来源：评论

学校读者我要写书评

暂无评论

model-based control for Mode Transition Between Spark Ignition and HCCI Combustion

引用

JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND control-TRANSACTIONS OF THE ASME 2017年第4期139卷 041004-041004页

作者： Zhang, Shupeng Song, Ruitao Zhu, Guoming G. Schock, Harold Michigan State Univ Dept Mech Engn E Lansing MI 48824 USA Michigan State Univ Dept Elect & Comp Engn E Lansing MI 48824 USA

While the homogeneous charge compression ignition (HCCI) combustion has its advantages of high thermal efficiency with low emissions, its operational range is limited in both engine speed and load. To utilize the advantage of the HCCI combustion, an HCCI capable spark ignition (SI) engine is required. One of the key challenges of developing such an engine is to achieve smooth mode transition between SI and HCCI combustion, where the in-cylinder thermal and charge mixture properties are quite different due to the distinct combustion characteristics. In this paper, a control strategy for smooth mode transition between SI and HCCI combustion is developed and experimentally validated for an HCCI capable SI engine equipped with electrical variable valve timing (EVVT) systems, dual-lift valves, and electronic throttle control (ETC) system. During the mode transition, the intake manifold air pressure is controlled by tracking the desired throttle position updated cycle-by-cycle;and an iterative learning fuel mass controller, combined with sensitivity-based compensation, is used to manage the engine torque in terms of net mean effective pressure (NMEP) at the desired level for smooth mode transition. Note that the NMEP is directly correlated to the engine output torque. Experiment results show that the developed controller is able to achieve smooth combustion mode transition, where the NMEP fluctuation is kept below 3.8% during the mode transition.

关键词： HCCI mode transition model-based control iterative learning

来源：评论

学校读者我要写书评

暂无评论

An Experimental Study of model-based control for Planar Handed Shearing Auxetics Robots 18th

An Experimental Study of Model-Based Control for Planar Hand...

引用

18th International Conference on Experimental Robotics (ISER)

作者： Stolzle, Maximilian Rus, Daniela Della Santina, Cosimo Delft Univ Technol NL-2628 CD Delft Netherlands MIT 77 Massachusetts Ave Cambridge MA 02139 USA

ISBN: (纸本)9783031635984;9783031635960;9783031635953

Parallel robots based on Handed Shearing Auxetics (HSAs) can implement complex motions using standard electric motors while maintaining the complete softness of the structure, thanks to specifically designed architected metamaterials. However, their control is especially challenging due to varying and coupled stiffness, shearing, non-affine terms in the actuation model, and underactuation. In this paper, we present a model-based control strategy for planar HSA robots enabling regulation in task space. We formulate equations of motion, show that they admit a collocated form, and design a P-satI-D feedback controller with compensation for elastic and gravitational forces. We experimentally identify and verify the proposed control strategy in closed loop.

关键词： Soft Robotics model-based control Underactuation

来源：评论

学校读者我要写书评

暂无评论

Adaptive Optimal model-based control of Membrane Systems Fouling: A Generic Robust Approach 1

引用

7th International-Water-Association (IWA) Regional Membrane Technology Conference (IWA-RMTC)

作者： Harmand, Jerome Chaaben, Aymen Ellouze, Fatma Ben Amar, Nihel Rapaport, Alain Heran, Marc Univ Montpellier LBE INRAE Narbonne France Univ Montpellier IEM Montpellier France Univ Tunis El Manar ENIT LAMSIN & INSAT Tunis Tunisia Univ Montpellier Inst Agro MISTEA Montpellier France

ISBN: (数字)9783031633577

ISBN: (纸本)9783031633591;9783031633577;9783031633560

This paper aims at studying the robustness of an adaptive optimal control approach initially proposed for optimizing membrane systems and limit energy requirements due to membrane fouling. It is shown that the proposed adaptive optimal controller may be designed for a large set of membrane filtration systems, notably micro and ultra filtration processes and that it is robust against model parameters as well as model structure uncertainties.

关键词： membrane fouling model-based control energy minimization

来源：评论

学校读者我要写书评

暂无评论

model-based control of switched linear systems under network communication

引用

AUTOMATICA 2024年 166卷

作者： Fu, Jun Li, Tai-Fang Yang, Tao Lu, Bin Northeastern Univ State Key Lab Synthet Automat Proc Ind Shenyang 110189 Peoples R China Bohai Univ Coll Control Sci & Engn Jinzhou 121013 Peoples R China

model-based control strategy is introduced for improving the closed-loop performance of switched systems under network communication in this paper. In traditional networked control system, a ZeroOrder Hold (ZOH) is often used at the controller side to realize continuous feedback control. However, to use a ZOH usually decreases control accuracy since the state will be held invariably during each sampling period. In order to improve control accuracy, we introduce a model-based control strategy instead of ZOH-based one and propose two analysis frameworks for switched linear systems in network communication environment with periodic sampling mechanism (PSM) and event-triggered sampling mechanism (ETSM), respectively. A model-based dynamic switching controller is set up with certain robust performance. Asynchronous switching is taken into account since the switching time sequence of the controller is determined by the network transmission time sequence which cannot coincide with the controlled system. Under switching and control gain conditions, stability criteria of the closedloop switched system in network communication environment are derived and verified through two simulation examples. (c) 2024 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

关键词： Switched systems model-based control Sampled-data control Event-triggered control Network communication

来源：评论

学校读者我要写书评

暂无评论

A Comparison between Disturbance Observer-based and model-based control of Needle in Percutaneous Applications

A Comparison between Disturbance Observer-Based and Model-Ba...

引用

38th Annual Conference on IEEE-Industrial-Electronics-Society (IECON )

作者： Maghsoudi, Arash Jahed, Mehran Sharif Univ Technol Sch Elect Engn Robot & Machine Vis Lab Tehran Iran Sharif Univ Technol Sch Elect Engn Tehran Iran

ISBN: (纸本)9781467324212

In this paper, model-based and disturbance observer (DO B)-based control of needle in precautious applications are compared. In the model-based approach, the force acting on the needle is calculated by evaluating the finite element model (FEM) of the tissue with the tissue deformation. In DOB-based method, the force acting on the needle is considered as an external disturbance and it is estimated using position and velocity of the needle. In both approaches, the calculated/estimated force is used in a sliding mode control scheme to steer the needle to the target. A dynamics equation for the movement of the needle is proposed which includes the force applied by the tissue to the needle. The results are evaluated through simulation and a dynamic finite element model is used to simulate the behavior of the soft tissue. It is shown that the performance of the model-based scheme in presence of the uncertainty in tissue mechanical properties is superior to that of DOB;however it introduces additional system complexity due to the usage of the tissue deformation.

关键词： Needle control model-based control disturbance observer finite element model

来源：评论

学校读者我要写书评

暂无评论

An improved model-based control scheme for networked systems

An improved model-based control scheme for networked systems

引用

IEEE International Conference on Systems, Man and Cybernetics

作者： Mu, SM Chu, TG Wang, L Peking Univ Intelligent Control Lab Ctr Syst & Control Dept Engn Sci & Mech Beijing 100871 Peoples R China

ISBN: (纸本)0780385667

In this paper, an improved scheme for model-based control of networked discrete time systems is presented by introducing a gain matrix to the reset state stage of the model when the network is switched on. This improvement introduces additional freedom in designing the controller and can increase the length of the period for updating the model state over the networks. Also, the plant can be stabilized by a controller based on a model with lower order than that of the plant. A sufficient condition and a necessary condition for the global exponential stability of the closed-loop system are derived for the case of the plant full state available, and when the plant full state is not available, a sufficient condition is obtained. The results suggest simple procedures for designing state/output feedback controllers for the systems. Numerical examples show the feasibility and efficiency of the proposed methods.

关键词： global exponential stability networked control systems model-based control

来源：评论

学校读者我要写书评

暂无评论

Temperature control of a pilot plant reactor system using a genetic algorithm model-based control approach

Temperature control of a pilot plant reactor system using a ...

引用

11th Asian Pacific Confederation of Chemical Engineering (APCChE)

作者： Wahab, Ahmad Khairi Abdul Hussain, Mohamed Azlan Omer, Rosli Univ Malaya Fac Engn Dept Chem Engn Kuala Lumpur 50603 Malaysia Univ Malaya Fac Engn Dept Elect Engn Kuala Lumpur 50603 Malaysia

The work described in this paper aims at exploring the use of an artificial intelligence technique, i.e. genetic algorithm (GA), for designing an optimal model-based controller to regulate the temperature of a reactor. GA is utilized to identify the best control action for the system by creating possible solutions and thereby to propose the correct control action to the reactor system. This value is then used as the set point for the closed loop control system of the heat exchanger. A continuous stirred tank reactor is chosen as a case study, where the controller is then tested with multiple set-point tracking and changes in its parameters. The GA model-based control (GAMBC) is then implemented experimentally to control the reactor temperature of a pilot plant, where an irreversible exothermic chemical reaction is simulated by using the calculated steam flow rate. The dynamic behavior of the pilot plant reactor during the online control studies is highlighted, and comparison with the conventional tuned proportional integral derivative (PID) is presented. It is found that both controllers are able to control the process with comparable performance. (c) 2007 Curtin University of Technology and John Wiley & Sons, Ltd.

关键词： genetic algorithm model-based control online control chemical reactor

来源：评论

学校读者我要写书评

暂无评论

Vibration suppression control for a twin-drive geared system: Simulation study on effects of model-based control integrated into the position control loop

Vibration suppression control for a twin-drive geared system...

引用

International Conference on Intelligent Mechatronics and Automation

作者： Itoh, M Miyagi Natl Coll Technol Dept Mech Engn Natori Miyagi 9811239 Japan

ISBN: (纸本)0780387481

This paper deals with a control technique of eliminating the transient vibration of a twin-drive geared mechanical system with backlash. This technique is based on a model-based control integrated into the position control loop. The control model as a dynamical compensator is composed of a linear reduced-order model related to the velocity control loop and a delay element related to the backlash. This control model estimates a load speed converted to the motor shaft. The difference between the estimated load speed and the motor speed is dynamically calculated, and it is added to the velocity command to suppress the transient vibration generated at the load. Further, a local current compensating loop is integrated into the current control loop to avoid the interference of the output torque of each motor. In this paper, the performance and the effectiveness of the model-based control integrated into the position control loop is verified by simulations. Simulations show satisfactory control results to reduce the transient vibration at the load.

关键词： twin-drive geared system transient vibration backlash vibration control model-based 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：