检索结果-内蒙古大学图书馆

An improved state-space model structure and a corresponding predictive functional control design with improved control performance

引用

INTERNATIONAL JOURNAL OF control 2012年第8期85卷 1146-1161页

作者： Zhang, Ridong Xue, Anke Wang, Shuqing Zhang, Jianming Zhejiang Univ Natl Key Lab Ind Control Technol Inst Cyber Syst & Control Hangzhou 310027 Peoples R China Hangzhou Dianzi Univ Informat & Control Inst Hangzhou 310018 Peoples R China

Conventional state-space model predictive control requires a state estimator/observer to access the state information for feedback controller design. Its drawbacks are the numerical convergence stability of the observer and closed-loop control performance deterioration with activated plant input/output constraints. The recent direct use of measured input and output variables to formulate a non-minimal state-space (NMSS) model overcomes these problems, but the subsequent controller is too sensitive to model mismatch. In this article, an improved structure of NMSS model that incorporates the output-tracking error is first formulated and then a subsequent predictive functional control design is proposed. The proposed controller is tested on both model match and model mismatch cases for comparison with previous controllers. Results show that control performance is improved. In addition, a linear programming method for constraints dealing and a closed form of transfer function representation of the control system are provided for further insight into the proposed method.

关键词： predictive functional control state-space model closed-loop control performance discrete time processes

来源：评论

学校读者我要写书评

暂无评论

Partially decoupled approach of extended non-minimal state space predictive functional control for MIMO processes

引用

JOURNAL OF PROCESS control 2012年第5期22卷 837-851页

作者： Zhang, Ridong Xue, Anke Wang, Shuding Zhang, Jianming Gao, Furong Zhejiang Univ Natl Key Lab Ind Control Technol Inst Cyber Syst & Control Hangzhou 310027 Peoples R China Hangzhou Dianzi Univ Informat & Control Inst Hangzhou 310018 Peoples R China Hong Kong Univ Sci & Technol Dept Chem & Biomol Engn Kowloon Hong Kong Peoples R China

This paper presents a partially decoupled design of the state space predictive functional control for MIMO processes. The multivariable process is first treated into MISO process by a simple Cramer's rule solution to linear equations which provides a balance between model complexity and control system design, and then the derived MISO process based extended state space predictive functional control is presented. The overall design of the controller enables the controller to consider both the process slate dynamics and the output dynamics, thus improved control performance for tracking set-points and disturbance rejection is resulted. The proposed controller is tested on both model match and model mismatch cases to demonstrate its superiority. In addition, a closed-form of transfer function representation that facilitates frequency analysis of the control system is provided to give further insight into the proposed method. (C) 2012 Elsevier Ltd. All rights reserved.

关键词： Multivariable processes predictive functional control State space model Closed-loop control performance

来源：评论

学校读者我要写书评

暂无评论

Improved PI-PD control design using predictive functional optimization for temperature model of a fluidized catalytic cracking unit

引用

ISA TRANSACTIONS 2017年 67卷 215-221页

作者： Zou, Hongbo Li, Haisheng Hangzhou Dianzi Univ Key Lab IOT & Informat Fus Technol Zhejiang Hangzhou 310018 Zhejiang Peoples R China

Proportional-integral-derivative (PID) control is widely used in industry because of its simple structure and convenient implementation. However, PID control is suitable for small time delay systems;while if too large delay is encountered, PID control may not obtain the desired performance. Proportional-integral-proportional-derivative (PI-PD) control is a modified of PID control and can get improved control performance;however, due to the complex controller parameter tuning, the PI-PD control is used in a limited scope. Inspired by the advantage of predictive functional control (PFC), a new PI-PD control design using PFC optimization is proposed in this paper. The proposed method not only inherits the advantage of PFC, which does well in coping with the time delay, but also has the same structure as the PI-PD controller. The proposed method is tested on the preheated temperature control of crude oil in a fluidized catalytic cracking unit. The results show that the proposed controller improves control performance compared with typical PID control and PI-PD control. (C) 2016 ISA. Published by Elsevier Ltd. All rights reserved.

关键词： PID control PI-PD control predictive functional control Preheated temperature Time delay

来源：评论

学校读者我要写书评

暂无评论

Cascade Temperature control for Bench-Scale Batch Reactor-An Application of predictive functional control Technique

Cascade Temperature Control for Bench-Scale Batch Reactor-An...

引用

10th World Congress on Intelligent control and Automation (WCICA)

作者： Song, Yiming Yang, Bin Qiu, Shuang Ma, Xiaoxun Northwest Univ Sch Chem Engn 229 Taibei Beilu Xian 710069 Peoples R China

ISBN: (纸本)9781467313988

An advanced control concept, namely predictive functional control (PFC) technique, is applied for temperature control of a bench-scale batch reactor. First principles models for individual process unit are developed. Based on achieved models, significant process variables, which are difficult or impossible to measure online, are estimated from easily measured variables, and cascade PFC control strategy has been projected and implemented in Programmable Logic controller (PLC). The dynamic of individual process subunits is explicit taken into consideration. Moreover, model uncertainty and various process disturbances are compensated by modification of internal model. The experimental results present an excellent capability of tracking the set point.

关键词： predictive functional control cascade controller temperature control batch reactor

来源：评论

学校读者我要写书评

暂无评论

Data-driven predictive functional control of Power Kites for High Altitude Wind Energy Generation

Data-driven Predictive Functional Control of Power Kites for...

引用

IEEE Electrical Power and Energy Conference (EPEC)

作者： Sun, Qu Wang, Yong-yu Univ Sci & Technol Beijing Sch Automat & Elect Engn Beijing 100083 Peoples R China Beijing Univ Posts & Telecommun Century Coll Beijing 100876 Peoples R China

ISBN: (纸本)9781467320801;9781467320818

The power kite is a kind of high altitude wind energy (HAWE), which is a still untapped source of renewable energy and has received an increasing attention in the last decade. Automatic control of power kites is a key aspect of HAWE generators and it is a complex issue, since the system at hand is open-loop unstable, difficult to model and subject to significant external disturbances. In order to deal with this issue, a new kind of adaptive predictive functional controller (APFC) is presented in this paper. With subspace identification for predictive model of kites, the maximum generation controller is designed to control kites using PFC principles. The APFC, which is a combination of on-line identification, learning mechanism and predictive controller, is presented to solve the nonlinear real-time receding horizon optimization. The stability of control system is guaranteed by closed-loop subspace identification. The implementation of closed loop control system is given, and the proposed APFC approach for kite control results to be quite effective, as it is shown via numerical simulation tests.

关键词： High altitude wind energy kite predictive functional control subspace identification

来源：评论

学校读者我要写书评

暂无评论

A predictive functional control Algorithm for Multivariable Systems with Time-delay

A Predictive Functional Control Algorithm for Multivariable ...

引用

31st Chinese control Conference

作者： Zhou Lei Fei Shumin Huang Jiacai Zhai Junyong Southeast Univ Sch Automat Nanjing 210096 Jiangsu Peoples R China Nanjing Inst Technol Nanjing 211167 Jiangsu Peoples R China

ISBN: (纸本)9789881563811

To improve the dynamic characteristics and the coupling capability, a new predictive functional control algorithm is proposed for strong coupling multivariable systems with time-delay, which combines predictive functional control and decoupling control. Firstly, a decoupling control algorithm is proposed, in which first-order models with time-delay are established by analyzing the amplitude-frequency and phase-frequency characteristics of the decoupled subject. Then a controller is designed for the single-variable subjects after decoupling based on the principles of predictive functional control. The simulation results show that this proposed algorithm has less online computation time, faster tracking, and higher control accuracy. It can provide a more effective control for complex multivariable systems.

关键词： multivariable time-delay decoupling control predictive functional control

来源：评论

学校读者我要写书评

暂无评论

Research of Networked control System Based on predictive functional control

Research of Networked Control System Based on Predictive Fun...

引用

Asia Simulation Conference/International Conference on System Simulation and Scientific Computing (AsiaSim and ICSC 2012)

作者： Peng, Daogang Lin, Jiajun Wu, Yue Zhang, Hao Shanghai Univ Elect Power Sch Elect Power & Automat Engn Shanghai 200090 Peoples R China East China Univ Sci & Technol Sch Informat Sci & Engn Shanghai 200237 Peoples R China

ISBN: (纸本)9783642343896

As a hotspot in the field of the control theory research and control engineering application, networked control system (NCS) has drawn the domestic and foreign researchers' attention. The essence of NCS is that all kinds of information such as reference input, control input, object output etc can exchange data by the different components of networked control system, such as sensors, controllers and actuators and so on. As a model based advanced control technology, predictive functional control has the same advantages as model predictive control, its algorithm and principle are simple and can be easily realized. Takes the first-order plus time-delay system in typical industry process control system for example, the networked control system based on predictive functional control is designed in this paper, and the simulation platform by using True Time toolbox based on Mat lab platform is constructed. The simulation result has shown that the control scheme is effective and feasible, and it can be used in engineering application.

关键词： Networked control system predictive functional control predictive control Advanced control technology

来源：评论

学校读者我要写书评

暂无评论

Strategy and Application of predictive functional control in dosing of coagulant

Strategy and Application of Predictive Functional Control in...

引用

International Conference on control Engineering and Communication Technology (ICCECT)

作者： Rao, Ning Chen, Guo Ding Zhao, Yin Jun Xue, Dong Zhejiang Univ Technol Coll Informat Engn Hangzhou Zhejiang Peoples R China

ISBN: (纸本)9781467344999

Utilizing measurability of water quality disturbance, a nonlinear regression prediction model-based forward compensation control algorithm with measurable disturbance is proposed for the process of water treatment coagulant dosage. To reject the second disturbance caused by coagulant dosage inverter modification, a mode of double cycle control is presented by combining PFC and PID. Effectiveness of the proposed control strategy is verified through the experimental results of turbidity control of a water factory

关键词： coagulant dosing nonlinear regression disturbance feedforward compensation predictive functional control turbidity

来源：评论

学校读者我要写书评

暂无评论

Maximum Generation control of Kite Generator Based on predictive functional control

Maximum Generation Control of Kite Generator Based on Predic...

引用

31st Chinese control Conference

作者： Sun Qu Yu Hao-jie Sun Yu Univ Sci & Technol Beijing Sch Automat & Elect Engn Beijing 100083 Peoples R China Dongfang Elect Corp Ltd Power Plant Serv Div Chengdu 610036 Peoples R China

ISBN: (纸本)9789881563811

The controller of kite generators is presented based on predictive functional control (PFC) in this paper. The yo-yo structure is studied to model the dynamic of a kite, which can be controlled by suitably pulling two lines. Energy is generated by a cycle composed of two phases, indicated as the generation and the motor one. In the generation phase the control is designed to maximize the amount of generated energy, and in the motor phase the kite is pulled by the motors spending a minimum fraction of the energy generated in the generation phase. In order to solve the difficulties encountered when traditional model predictive control methods are applied to the above nonlinear constraint optimization problems, the maximum generation controller is designed for kite generators using PFC principles. The implementation of closed loop control system is given, and its correctness and effectiveness are validated by simulation results, which also show that the PFC algorithm can meet the needs for speed of computation.

关键词： Kite generator predictive functional control Maximum generation Nonlinear real-time optimization

来源：评论

学校读者我要写书评

暂无评论

A predictive functional control Algorithm for Multivariable Systems with Time-delay

A Predictive Functional Control Algorithm for Multivariable ...

引用

第三十一届中国控制会议

作者： ZHOU Lei~(1,2),FEI Shumin~1,HUANG Jiacai~2,ZHAI Junyong~1 1.School of Automation,Southeast University,Nanjing 210096 2.Nanjing Institute of Technology,Nanjing 211167,China

To improve the dynamic characteristics and the coupling capability,a new predictive functional control algorithm is proposed for strong coupling multivariable systems with time-delay,which combines predictive functional control and decoupling ***,a decoupling control algorithm is proposed,in which first-order models with time-delay are established by analyzing the amplitude-frequency and phase-frequency characteristics of the decoupled *** a controller is designed for the single-variable subjects after decoupling based on the principles of predictive functional control. The simulation results show that this proposed algorithm has less online computation time,faster tracking,and higher control *** can provide a more effective control for complex multivariable systems.

关键词： multivariable time-delay decoupling control predictive functional 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：