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Annual Conference of Industrial Electronics Society

作者： M. Guerrero Josep Juan C. Vásquez Mehdi Savaghebi Jordi de la Hoz Helena Martín Universitat Politecnica de Catalunya Barcelona Catalunya ES Dept. Automatic Control Systems Universitat Politecnica Catalunya (UPC) Barcelona Spain Dept. Electrical Engineering Iran Univ of Science and Techn (IUST) Tehran Iran

Microgrids are key elements to integrate renewable and distributed energy resources as well as distributed energy storage systems. In the last years, efforts toward the standardization of these microgrids have been made. In this sense, this paper presents the hierarchical control which consist of three levels: i) the primary control is based on the droop method, including an output impedance virtual loop; ii) the secondary control allows to restore the deviations produced by the primary control; and iii) the tertiary control manage the power flow between the microgrid and the external electrical distribution system. Results from a hierarchical-controlled microgrid are provided to show the feasibility of the proposed approach.

关键词： Impedance Inverters Voltage control Synchronization Frequency control Reactive power

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Hybridization approach of plant models for enhancing ship electrical system analysis

Hybridization approach of plant models for enhancing ship el...

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Electrical systems for Aircraft, Railway and Ship Propulsion

作者： R. Iza E. Irigoyen V. Gómez F. Artaza H. Etxebeste INGETEAM MARINE Zamudio Spain System Engineering and Automation Department Control Intelligent Research Group University of Basque Country (UPV-EHU) Bilbao Spain System Engineering and Automation Dept. University of the Basque Country Bilbao Spain

This work presents a Hybrid Model Library (HML) for enhancing the analysis of ship electrical systems. Lots of studies were made in order to select the most appropriated software platform to test the new models developed. This work shows examples of models developed in Simulink-MATLAB and PSIM platforms. Later on, we present a research methodology based on modeling techniques by hybridization. Several modeling stages will be presented in order to clarify what kind of difficulties has been solved during marine plant models designing. Finally, we present some conclusions about the HML developed and the chances to improve its core.

关键词： Load modeling Analytical models Marine vehicles Libraries Propulsion Software control systems

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Damping Structure Selection in Nonlinear Ship Manoeuvring Models

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IFAC Proceedings Volumes 2010年第20期43卷 73-78页

作者： Tristan Perez Elías Revestido-Herrero School of Engineering Discipline of Mechanics and Mechatronics The University of Newcastle Callaghan NSW 2308 AUSTRALIA Centre for Ships and Ocean Structures (CeSOS) Norwegian University of Science and Technology (NTNU) Trondheim NORWAY Dept. of Electronic Technology Systems Engineering and Automatic Control University of Cantabria Spain

This paper presents the application of a statistical method for model structure selection of lift-drag and viscous damping components in ship manoeuvring models. The damping model is posed as a family of linear stochastic models, which is postulated based on previous work in the literature. Then a nested test of hypothesis problem is considered. The testing reduces to a recursive comparison of two competing models, for which optimal tests in the Neyman sense exist. The method yields a preferred model structure and its initial parameter estimates. Alternatively, the method can give a reduced set of likely models. Using simulated data we study how the selection method performs when there is both uncorrelated and correlated noise in the measurements. The first case is related to instrumentation noise, whereas the second case is related to spurious wave-induced motion often present during sea trials. We then consider the model structure selection of a modern high-speed trimaran ferry from full scale trial data.

关键词： system Identification Regression Analysis Ship Dynamics Hypothesis Testing

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control communications with DDS using IEC61499 Service Interface Function Blocks

Control communications with DDS using IEC61499 Service Inter...

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Isidro Calvo Federico Pérez Ismael Etxeberria Guadalupe Morán Dept. of Automatic Control and Systems Engineering University of the Basque Country (UPV/EHU) Spain Dept. of Computer Languages and Systems University of the Basque Country (UPV/EHU) Spain Electronics Division Faculty of Engineering Universidad Autónoma del Estado de Mexico Toluca Mexico Electronics Division Faculty of Engineering UAEM Toluca MEXICO

The IEC61499 is an open standard for distributed control and automation. The interface between control software and hardware or communications is achieved by means of the so-called Service Interface Function Blocks (SIFB). This paper presents the guidelines to build communication SIFBs based on the emerging OMG DDS (Data Distribution Service) middleware. This specification implements in a very efficient way the Publisher/Subscriber paradigm providing significant QoS configuration possibilities. These characteristics make DDS suitable for implementing the communications among time-critical devices. By using these DDS-SIFBs within IEC61499 code generation tools, the designers of the distributed applications will be allowed to use this powerful technology in the new distributed applications.

关键词： IEC standards Middleware Hardware Quality of service Distributed control Software Process control

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Robust sensor fault detection and isolation for a doubly-fed induction generator

Robust sensor fault detection and isolation for a doubly-fed...

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2010 49th IEEE Conference on Decision and control

作者： B. Boulkroune M. Galvez-Carrillo M. Kinnaert Dept. of Control Engineering and System Analysis Universite Libre de Bruxelles (ULB) CP 165/55 50 Av. F.D. Roosevelt 1050 Brussels Belgium

ISBN: (纸本)9781424477456

The problem of multiplicative fault detection and isolation (FDI) in the current sensors of a doubly-fed induction generator (DFIG) is considered in the presence of model uncertainty. A residual generator based on the DFIG model is proposed using the structure of the classical generalized observer scheme (GOS). However, each observer in this scheme is replaced by a robust H_(-)/H_(infinity) fault detection filter followed by a Kalman-like observer. It turns out that the fault detection/isolation problem then amounts to detecting the appearance of sine waves superimposed to specific components of a white noise vector. A Generalized Likelihood Ratio Test (GLRT) is developed to solve the problem. The complete FDI system is validated through simulations on a controlled DFIG.

关键词： Defect detection Induction generators model uncertainty doubly-fed double-fed induction generator Current sensors

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A move-blocking strategy to improve tracking in predictive control

A move-blocking strategy to improve tracking in predictive c...

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American control Conference

作者： G. Valencia-Palomo M. Pelegrinis J.A. Rossiter R. Gondhalekar Department of Automatic Control and Systems Eng. University of Sheffield South Yorkshire UK. S1 3JD Frontier Research Base for Global Young Researcher and Dept. of Mechanical Engineering Osaka University Japan

ISBN: (纸本)9781424474264

One of the advantages of model predictive control is its ability to take optimal account of information about future setpoint changes in the design of the control law. However, it is easy to show that the default optimum GPC (Generalized Predictive control) law that uses this information can lead to a deterioration rather than an improvement in performance. This paper discusses some simple modifications to overcome this problem. Specifically the focus here is on move-blocking approaches which seek to extend the effective input horizon while restricting the number of optimisation variables. A simple algorithm is proposed which allows optimal nominal performance and tracking without the undesirable effects arising from the standard approaches;hence the proposed modification always improves algorithm performance.

关键词： Predictive control tracking Predictive control control law tracking undesirable effects

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Electro-thermal simulation and characterization of preconcentration membranes

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Procedia engineering 2010年 5卷 1264-1267页

作者： R. Inglés J. Pallares I. Gràcia A.M Gué J.L. Ramirez Dept. of Electronic Electrical and Automatic Control Engineering ETSE Universitat Rovira i Virgili Tarragona Spain Department of Mechanical Engineering ETSEQ Universitat Rovira i Virgili Tarragona Spain Centro Nacional de Microelectrónica CNM-CSIC Bellaterra Spain Laboratoire d’analyse et arquitecture des systèmes (LAAS) CNRS Toulouse France

Preconcentrators have been much studied last years to enhance sensitivity of gas sensors. We use electro-thermal simulations to design thermal isolated membranes that supports thin film heaters as components of gas preconcentrators, these heaters provide a good thermal homogeneity ensuring a narrow desorption peak and improving in this way the sensors response. We have validated our simulations with experimental results.

关键词： Preconcentrator Heater design Electrothermal simulation

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Fundamental modeling of vehicle power network system using VHDL-AMS

Fundamental modeling of vehicle power network system using V...

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2010 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2010

作者： Ueno, Shingo Tsuji, Kimitoshi Abe, Takashi Higuchi, Tsuyoshi Shigematsu, Koichi Dept. of Electrical and Electronic Engineering Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan Advanced Vehicle Control System Eng. Dev. Toyota Motor Corp. 1200 Mishuku Susono Shizuoka 410-1193 Japan Cybernet Systems Co. Ltd. Fujisoft Bldg. 6-26 Nishiki 1-Chome Naka-ku Nagoya 460-0003 Japan

ISBN: (纸本)9781424449873

The vehicle system is a multi-domain system that requires many branches of science and engineering. Therefore the development of the vehicle system requires the use of design methodologies that utilize simulations, which have grown increasingly sophisticated in recent years. This paper describes how VHDL-AMS was used to model the powertrain, alternator and battery system that are the basic elements of the vehicle power network system, and examines the simulation results with the aim of realizing a system simulation whose scope covers the entire vehicle. © 2010 IEEE.

关键词： Electric power transmission networks

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An integrated multifunction DC/DC converter for PV generation systems

An integrated multifunction DC/DC converter for PV generatio...

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IEEE International Symposium on Industrial Electronics (ISIE)

作者： Lin Ma Kai Sun Remus Teodorescu Josep M. Guerrero Xinmin Jin Department of Energy Technology Aalborg University Aalborg Denmark School of Electrical Engineering Beijing Jiao Tong University Beijing China State Key Lab of Power Systems Tsinghua University Beijing China Dept. of Automatic Control Systems and Computer Engineering Universitat Politecnica de Catalunya Barcelona Spain

Due to the stochastic characteristic of photovoltaic (PV) generation, energy storage devices are indispensable to smooth the power flow and provide the electric energy with high quality. In this paper, an integrated DC/DC converter is proposed to realize high performance interfaces for PV array, battery and load. This converter consists of a boost converter for the PV array and a buck/boost converter for the battery, which can realize multifunction including power generation, charge and discharge. The grid-connected and stand-alone operation modes of this converter are analyzed. From this analysis, the control strategies are developed for both modes. A coordination scheme is proposed for the power balance at the stand-alone mode. Simulation and experiments verify the practical feasibility and effectiveness of this multi-function converter.

关键词： Batteries Arrays DC-DC power converters Voltage control Inverters Load flow

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Fault detection based on H_∞ states observer for networked control systems

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Journal of systems engineering and Electronics 2009年第2期20卷 379-387页

作者： Zhu Zhangqing Jiao Xiaocheng Dept. of Control and System Engineering Nanjing Univ. Nanjing 210093 P. R. China

The influence of random short time-delay to networked control systems （NCS） is changed into an unknown bounded uncertain part. Without changing the structure of the system, an Hoo states observer is designed for NCS with short time-delay. Based on the designed states observer, a robust fault detection approach is proposed for NCS. In addition, an optimization method for the selection of the detection threshold is introduced for better tradeoff between the robustness and the sensitivity. Finally, some simulation results demonstrate that the presented states observer is robust and the fault detection for NCS is effective.

关键词： networked control systems fault detection states observers time-delays robustness

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