检索结果-内蒙古大学图书馆

2015 American control Conference, ACC 2015

作者： Balandat, Maximilian Tkachev, Ilya Abate, Alessandro Tomlin, Claire J. Department of Electrical Engineering and Computer Sciences University of California Berkeley United States Delft Center for Systems and Control TU Delft Delft Netherlands Department of Computer Science University of Oxford Oxford United Kingdom

ISBN: (纸本)9781479986842

We study the formation of short-term interest rates in the interbank lending market where banks are modeled as agents with bounded rationality. We propose a novel model which is based on bilateral contracts between risk-neutral profit-maximizing agents. To render the model tractable for large financial networks, we assume that banks' beliefs about the borrowing alternatives in the market are governed by a common reference interest rate, which is a function of the rates offered in the bilateral contracts. We show how this reference rate can be determined endogenously from a suitable mean field equilibrium and provide sufficient conditions for the existence of such an equilibrium together with an algorithm to compute it. Using simulation, we study the dependence of the equilibrium on the model parameters. © 2015 American automatic control Council.

关键词： Finance

来源：评论

学校读者我要写书评

暂无评论

Nonlinear Event-Triggered Platooning control with Exponential Convergence ∗

引用

IFAC-PapersOnLine 2015年第22期48卷 138-143页

作者： Steffen Linsenmayer Dimos V. Dimarogonas Frank Allgöwer Institute for Systems Theory and Automatic Control University of Stuttgart Stuttgart Germany ACCESS Linnaeus Centre School of Electrical Engineering KTH Royal Institute of Technology Stockholm Sweden

In this paper the control of a platoon with a nonlinear controller under event-triggered communication is investigated. The proposed nonlinear controller is a predecessor-following controller for a certain class of nonlinear functions. For the event-triggered communication scheme every agent decides based on its own state when it transmits its state information. Therefore, a trigger rule is designed that guarantees exponential convergence of the state error while it excludes Zeno behavior. The results are extended to allow heterogeneous trigger rules under certain conditions. Furthermore the case of heterogeneous controllers is analyzed and exponential convergence and exclusion of Zeno behavior is still guaranteed. The theoretical results of the paper are supported by numerical simulations.

关键词： Event-triggered control Platooning Nonlinear control

来源：评论

学校读者我要写书评

暂无评论

Point-parametric modeling for model predictive control in dynamic networks

Point-parametric modeling for model predictive control in dy...

引用

International Conference on Methods and Models in Automation and Robotics (MMAR)

作者： Ayodeji Ajibulu Mietek Brdys Electrical and Systems Engineering University of Birmingham Birmingham UK Department of Control Systems Engineering University of Technology Gdansk Poland

This paper illustrates the application of point-parametric modeling for model predictive control applications in dynamic networks. The point-parametric modelling methodology is applicable to a variety of large scale complex systems such as drinking water distribution systems, power networks, transportation networks and telecommunication networks. Robust parameter estimation provided by point-parametric modelling technology is addressed. The models developed are suitable for model predictive controller design. A numerical example based on drinking water distribution system is used to illustrate the point-parametric modeling for water quality prediction.

关键词： Modeling Uncertainty Predictive models Parameter estimation Monitoring Robustness Chlorine

来源：评论

学校读者我要写书评

暂无评论

Co-simulation of a low-voltage utility grid controlled over IEC 61850 protocol 5

Co-simulation of a low-voltage utility grid controlled over ...

引用

5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015

作者： Sharma, Ekanki Bratcu, Antonetaluliana Chiculita, Claudiu Besanger, Yvon Grenoble Alpes University GIPSA-Lab. Control Systems Department Saint-Martin d'Hères38402 France Faculty of Control Engineering Computers Electrical Engineering and Electronics DunǍrea de Jos University of Galati Galaţi800008 Romania Grenoble38031 France

ISBN: (纸本)9781467371063

This paper presents a co-simulation model using MATLAB® toolboxes to illustrate an interaction between the communication system and the energy grid, coherent with the concept of smart grid that employs IEC 61850 communication standard. The MMS (Manufacturing Message Specification) protocol supported by IEC 61850, based on TCP/IP, is used for the vertical communication between the Supervisory and Data Acquisition (SCADA) system and Intelligent Electronic Devices (TEDs) embedding the local control of different parts of the smart grid. In this paper an IED supporting the power control of a photovoltaic (PV) plant connected to a low-voltage (LV) utility grid is considered. Communication system consisting of the transport layer and a router placed on the network layer is modeled as an event-driven system using SimEvents® toolbox and energy grid is modeled as a time-driven system using SimPowersystems® toolbox. Co-simulation results are obtained by combining different communication scenarios and time-varying irradiance scenarios for the PV plant when this one is required to provide a certain power in response to a power reference received from SCADA over the communication network. The analysis aims at illustrating the impact that stochastic behavior and delays due to network communication have on the global system behavior. © 2015 IEEE.

关键词： Smart power grids

来源：评论

学校读者我要写书评

暂无评论

Balancing Bike Sharing systems through Customer Cooperation - A Case Study on London's Barclays Cycle Hire

Balancing Bike Sharing Systems through Customer Cooperation ...

引用

IEEE Annual Conference on Decision and control

作者： Philipp Aeschbach Xiaojing Zhang Angelos Georghiou John Lygeros Automatic Control Laboratory Department of Electrical Engineering and Information Technology ETH Zurich 8092 Zurich Switzerland

ISBN: (纸本)9781479978878

A growing number of cities worldwide have been installing public bike sharing systems, offering citizens a flexible and "green" alternative of mobility. In most bike sharing systems, customers rent and return bikes at different stations, without prior notification of the system operator. As a consequence, bike systems often become unbalanced, leaving some stations either empty or full. In such a case, customers either cannot pick up or return their bikes, resulting in a low service level. Typically, system operators employ staff to manually relocate bikes using trucks, leading to considerable operational cost. In this paper, we describe various methods to balance bike sharing systems by actively engaging customers in the balancing process. In particular, we show that by appropriately sending "control signals" to customers requesting them to slightly change their intended journeys, bike sharing systems can be balanced without using staffed trucks. Through extensive simulations based on historical data from London's Barclays Cycle Hire scheme, we show that simple control signals are sufficient to effectively balance the bike sharing system and offer service rates close to 100%.

关键词： Trucks control SIGNAL Property Leasing Purchasing STATIONS Case studies historical data empty

来源：评论

学校读者我要写书评

暂无评论

Vector processor for online lithium-ion battery capacity prediction

Vector processor for online lithium-ion battery capacity pre...

引用

2015 IEEE 12th International Conference on Electronic Measurement & Instruments

作者： Pang Yeyong Wang Shaojun Peng Yu Leong Philip H.W. Department of Automatic Test and Control Harbin Institute of Technology School of Electrical and Information Engineering The University of Sydney

Battery capacity prediction in aerospace systems is a computationally expensive problem. In this paper, we propose a novel field programmable gate array-based(FPGA) vector processor to reduce latency in this application. This processor architecture is optimized for the kernel recursive least squares(KRLS) algorithm, and used to perform online regression. Pipelining is employed to increase performance and microcoding used to provide flexibility. The design was verified using NASA Prognostics Center of Excellence(PCo E) lithium-ion battery capacity data. Experimental results show that the proposed processor can achieve factors of 7, 2 and 5 improvement in execution time, power and latency over a standard microprocessor solution, while maintaining prediction accuracy. The vector processor is suitable not only for battery capacity prediction, but also for other online time series prediction problems.

关键词： KRLS vector processor FPGA battery capacity online prediction

来源：评论

学校读者我要写书评

暂无评论

Convex Approximation of Chance-Constrained MPC through Piecewise Affine Policies using Randomized and Robust Optimization

Convex Approximation of Chance-Constrained MPC through Piece...

引用

IEEE Annual Conference on Decision and control

作者： Xiaojing Zhang Angelos Georghiou John Lygeros Automatic Control Laboratory Department of Electrical Engineering and Information Technology ETH Zurich 8092 Zurich Switzerland

ISBN: (纸本)9781479978878

In this paper, we consider chance-constrained Stochastic Model Predictive control problems for uncertain linear systems subject to additive disturbance. A popular method for solving the associated chance-constrained optimization problem is by means of randomization, in which the chance constraints are replaced by a finite number of sampled constraints, each corresponding to a disturbance realization. Earlier approaches in this direction lead to computationally expensive problems, whose solutions are typically very conservative both in terms of cost and violation probabilities. One way of overcoming this conservatism is to use piecewise affine (PWA) policies, which offer more flexibility than conventional open-loop and affine policies. Unfortunately, the straight-forward application of randomized methods towards PWA policies will lead to computationally demanding problems, that can only be solved for problems of small sizes. To address this issue, we propose an alternative method based on a combination of randomized and robust optimization. We show that the resulting approximation can greatly reduce conservatism of the solution while exhibiting favorable scaling properties with respect to the prediction horizon.

关键词： RANDOMISING Affine In-law Conservatism Policies Piecewise Linear system Randomisation approximation

来源：评论

学校读者我要写书评

暂无评论

A Stochastic Optimization Approach to Cooperative Building Energy Management via an Energy Hub

A Stochastic Optimization Approach to Cooperative Building E...

引用

IEEE Annual Conference on Decision and control

作者： Georgios Darivianakis Angelos Georghiou Roy S. Smith John Lygeros Automatic Control Laboratory Department of Electrical Engineering and Information Technology ETH Zurich 8092 Zurich Switzerland

ISBN: (纸本)9781479978878

Building energy management is an active field of research since the potential in energy savings can be substantial. Nevertheless, the opportunities for large savings within individual buildings can be limited by the flexibility of the installed climate control devices and the individual construction characteristics. The energy hub concept allows one to manage a collection of buildings in a cooperative manner, by providing opportunities for load shifting between buildings and the sharing of expensive but energy efficient equipment housed in the hub, such as heat pumps, boilers, batteries. Typically, control design for the buildings and the energy hub are done separately, underutilizing the potential flexibility provided by the interconnected system. To address these issues, we propose a unified framework for controlling the operation of the energy hub and the buildings it connects to. By modeling all exogenous disturbance parameters as stochastic processes, and by using state-space representation of the building dynamics, we formulate a multistage stochastic optimization problem to minimize the total energy consumption of the system in a cooperative manner. We solve the resulting infinite dimensional optimization problem using a decision rule approximation, and we benchmark its performance on a numerical study, comparing it with established solution techniques.

关键词： Buildings HUB Energy management ELAVL2 gene built structure energy consumption field surveys Load shifting State-space Representation total energy consumption

来源：评论

学校读者我要写书评

暂无评论

Modeling and control of a multipurpose biotechnological plant. Photobioreactor modeling

Modeling and control of a multipurpose biotechnological plan...

引用

International Conference on System Theory, control, and Computing (ICSTCC)

作者： George Adrian Ifrim Marian Barbu Emil Ceanga Sergiu Caraman Department of Automatic Control and Electrical Engineering “Dunärea de Jos” University of Galati Galati Romania

The present paper is the first of a series of two papers that concerns the modeling of a complex multipurpose biotechnological plant that consist in two interconnected subsystems, namely an anaerobic digestor and a photobioreactor. The paper is presenting a complex analytical model for the photobioreactor that embeds the effect of pH on the photosynthetic growth of microalgae. The static characteristics of the multivariable non-square system are discussed along with the solution for its reduction when control strategies are aimed. Simplified dynamic models for the design of control loops were obtained through Hankel analysis.

关键词： Mathematical model Biological system modeling Biomass Tin Carbon Nitrogen

来源：评论

学校读者我要写书评

暂无评论

Study on small multiplicative fault detection using Canonical Correlation Analysis with the local approach

引用

IFAC-PapersOnLine 2015年第21期48卷 1414-1419页

作者： Chen, Zhiwen Zhang, Kai Ding, Steven X. Yang, Xu He, Zhangming Hu, Zhikun Institute for Automatic Control and Complex Systems University of Duisburg-Essen Bismarckstrasse 81 BB Duisburg 47057 Germany College of Automation and Electrical Engineering University of Science and Technology Beijing Beijing 100083 China College of Science National University of Defense Technology Changsha 410073 China College of Physics and Electronics Central South University Changsha 410073 China

Canonical correlation analysis(CCA) could be utilized for analyzing a linear static process when the input-output relationship is explicitly existing. Based on the canonical variates obtained by the CCA method, a novel fault detection approach can be designed by resembling the principal component analysis (PCA) and the partial least squares (PLS) approaches. However, in this paper, the traditional CCA approach will be shown insensitive to one kind of fault, i.e., multiplicative fault (change). Based on this motivation, a modified statistic based on the local approach is introduced to help CCA approach further improve its acceptance for detecting multiplicative changes in the static processes. The new method will be verified through its application to a continuous stirred tank heater (CSTH). © 2015

关键词： Fault detection

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：