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International Conference on Mechatronics and control Engineering (ICMCE 2012)

作者： Liu, Jianjun Zhu, Kuanjun China Elect Power Res Inst Div Engn Mech Beijing 100055 Peoples R China

ISBN: (纸本)9783037855959

One challenge in the use of semi-active technology is in developing nonlinear control algorithms that are appropriate for implementation in full-scale structures. Based on the basic characteristics of magnetorheological (MR) damper, the structural control algorithms are introduced. The nonlinear control algorithms are systematically reviewed from the aspects including clipped optimal control, LQR control, and Lyapunov stability control. Finally, the existed problem in application and the future developing in research on the structural control algorithms are summarized respectively.

关键词： MR damper control algorithms nonlinear

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The Art of control algorithms Design and Implementation

The Art of Control Algorithms Design and Implementation

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3rd International Conference on Smart Materials, Structures and Systems

作者： Rodellar, Jose Ikhouane, Faycal Pozo, Francesc Pujol, Gisela Acho, Leonardo Rossell, Josep M. Univ Politecn Cataluna ETSECCPB Dept Matemat Aplicada 3 CoDAlab Jordi Girona 1-3 ES-08034 Barcelona Spain UPC EUETIB Dept Math Aplicada 3 CoDAlab E-08036 Barcelona Spain UPC EUPM Dept Math Aplicada 3 CoDAlab Barcelona Spain

ISBN: (纸本)9783908158226

This paper discusses some issues which are relevant when addressing the design and the implementation of control algorithms for smart structures: (1) the model of the closed control loop;(2) the control strategy;(3) the control methodology;(4) the feedback information constraints;and (5) the digital implementation. A case study is used to illustrate some of these issues.

关键词： control of structures control algorithms modeling for control control design

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Gas pressure regulator control algorithms

Gas pressure regulator control algorithms

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International Conference on Dynamics and Vibroacoustics of Machines (DVM)

作者： Shakhmatov, Evgeniy Iluhin, Vladimir Mezentsev, Dmitry Samara Univ Dept ASEU Samara Russia

ISBN: (纸本)9781728175263

Due to increase in gas transportation scopes, the requirements for gas pressure regulators, such as accuracy, speed, transition time, etc., are also increasing. This article suggests ways to solve the problem of gas pressure regulation accuracy increase by using new discrete pressure regulators. In this connection, various control algorithms for discrete gas pressure regulators, transients occurring during flow throttling are considered. The analysis of the existing analog and digital controllers showed that there's a need to create a controller that combines the advantages of a discrete and analog controller both. The article suggests ways to improve gas pressure control systems in natural gas transportation facilities by developing a mathematical model of a discrete pressure regulator for the main gas pipeline, working according to the pressure value with a predetermined transition from one mode to another.

关键词： regulator control algorithms natural gas

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Uncertainty handling control algorithms for demand response with modulating electric heating devices

Uncertainty handling control algorithms for demand response ...

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IEEE PES Innovative Smart Grid Technologies Europe (IEEE ISGT-Europe)

作者： Dengiz, Thomas Jochem, Patrick Fichtner, Wolf KIT Inst Ind Prod Karlsruhe Germany

ISBN: (纸本)9781538682180

The flexibility of electric heating devices coupled with thermal storage can help to cope with the increasing share of volatile renewable energy sources in the electricity grid. Scheduling-based demand response approaches for optimally exploiting these flexibilities use demand and generation predictions to calculate an operative schedule of the heating devices. Due to deviations between predicted and real energy profiles, additional uncertainty handling methods are essential which adjust the actions imposed by the schedule to the current situation. In this paper, we introduce corrective control algorithms for buildings in smart grids with modulating heating devices that can compensate the uncertainties of predictions. The results show that our developed approaches avoid violations of the inhabitants' comfort limits and decrease the surplus energy (and thus increase the self-consumption rate) of photovoltaic systems compared to a conventional control strategy. Further, our analysis reveals that uncertainties affect the load shifting potentials of electric heating devices and lead to increased surplus energy.

关键词： Demand response control algorithms uncertainties electric heating devices home automation smart grids

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Managerial individuality and control algorithms of cascade of Daugava river hydropower plants 3

Managerial individuality and control algorithms of cascade o...

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2nd International Conference on Electrical and control Technologies

作者： Pals, Dainis Sauhats, Antans Riga Tech Univ Riga Latvia

ISBN: (纸本)9781634397971

The structure of managerial individuality of Daugava river hydropower plants both in normal and in emergency operational conditions are described and illustrated in this paper. control algorithms of whole Daugava cascade and each plant separately are analyzed. The paper describes in which way plants are managed and controlled by central dispatch service (CDS) of Latvenergo under normal operational conditions as well as behavior of cascade during emergency situations. Types of emergency automation are reviewed that cascade and stations are subjected to as well as other stations and substations, which can bring changes in cascade work during power system failures. The main task is to explore management system of Daugava power plants for further possible optimization of system to achieve much better efficiency.

关键词： hydropower cascade plants management system control algorithms

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Specification methods for material-handling control algorithms in flexible manufacturing systems

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International Journal of Flexible Manufacturing Systems 1991年第3-4期3卷 231-250页

作者： Thomasma, Timothy Hilbrecht, Kurt Department of Industrial and Systems Engineering University of Michigan-Dearborn Dearborn 48128 MI 4901 Evergreen Rd. United States Department of Industrial and Systems Engineering University of Michigan-Dearborn Dearborn 48128 MI 4901 Evergreen Rd. United States

Good methods are needed to specify, test, and debug material-handling control logic. This article surveys a number of representative methods for defining and describing control algorithms for programmable material-handling equipment used in flexible manufacturing systems. The methods are evaluated with regard to their suitability for communication between people and as bases for interfaces to automatic program generators. It is concluded that no single method is entirely satisfactory. Three methods (position diagrams, function block diagrams, and operation networks) have potential to be combined into an effective hybrid approach that minimizes the need for the user to switch between various conceptual models. © 1991 Kluwer Academic Publishers.

关键词： control algorithms function block diagrams material handling operation networks position diagrams

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The Research and Application of Nonlinear control algorithms Based on magnetorheological damper

The Research and Application of Nonlinear Control algorithms...

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2nd International Conference on Future Information Technology and Management Engineering

作者： Liu, Jianjun Xia, Kaiquan Zhu, Caixia China Elect Power Res Inst Div Engn Mech Beijing 100055 Peoples R China Harbin Engn Univ Coll Comp Sci & Technol Harbin 150001 Peoples R China

ISBN: (纸本)9780769538808

关键词： MR damper nonlinear control algorithms

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Optimization of control algorithms for an Energy Efficient Frequency Converter

Optimization of Control Algorithms for an Energy Efficient F...

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IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (ElConRus)

作者： Korolev, Vitalii V. Gapchenko, Yulia A. St Petersburg Electrotech Univ LETI Dept Robot & Automat Prod St Petersburg Russia Togliatti State Univ Tolyatti Russia

Modern frequency converters have the necessary and sufficient level of functionality. Their further improvement is on the way to increasing energy efficiency. The article discusses the optimization of intelligent syst... 详细信息

ISBN: (纸本)9781665404761

关键词： frequency converter control algorithms electric drive modeling of electrical systems electrical engineering and electric power industry

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LOW COST RAPIDLY RECONFIGURABLE UAV AUTOPILOT FOR RESEARCH AND DEVELOPMENT OF GUIDANCE, NAVIGATION AND control algorithms

LOW COST RAPIDLY RECONFIGURABLE UAV AUTOPILOT FOR RESEARCH A...

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ASME International Design Engineering Technical Conferences/Computers and Information in Engineering Conference

作者： Lizarraga, M. I. Elkaim, G. H. Horn, G. M. Curry, R. Dobrokhodov, V. Kaminer, I. Univ Calif Santa Cruz Autonomous Syst Lab Jack Baskin Sch Engn Santa Cruz CA 95064 USA

ISBN: (纸本)9780791849002

This paper presents the development and preliminary results of a rapidly reconfigurable autopilot for small Unmanned Aerial Vehicles. The autopilot presented differs from current commercial and open source autopilots mainly as it has been designed to: (i) be easily reprogrammable via Simulink (models are directly transferred to the autopilot through the Real-Time Workshop's code-generation capability);(ii) decouple the traditional tasks of attitude estimation/navigation and flight control by using two Digital Signal controllers (one for each task) interconnected via a Serial Peripheral Interface;and, (iii) being able to interact directly with Simulink as a Hardware-in-the-Loop simulator. This work details each of the main components of the autopilot and its ground control station software. Preliminary results for sensor calibration, Hardware-in-the-loop, ground and flight tests are presented.

关键词： Calibration control algorithms Computer software Sensors Hardware Signals Navigation Flight control equipment Industrial research Unmanned aerial vehicles Autopilots

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Hyper-automaton: a model of control algorithms

Hyper-automaton: a model of control algorithms

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IEEE International Siberian Conference on control and Communications

作者： Zyubin, Vladimir E. RAS Inst Automat & Electrometry SB Task Force Linguist Means Appl Programming Novosibirsk 630090 Russia

ISBN: (纸本)9781424403462

The hyper-automation is introduced as a model of complex control algorithms. The model reflects basic aspects of control algorithms: presence of an external environment, cyclic and event-driven functioning, synchronism, hierarchical structure and logical parallelism. The paper introduces basic definitions and conceptual means of hyper-automaton model, which encourage program implementation of the algorithms. A new kind of functional polymorphism we name event-driven polymorphism is distinguished and discussed.

关键词： hyper-automaton control algorithms modeling event-driven polymorphism

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