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5th IEEE International Conference on Modern Electrical and Energy System, MEES 2023

作者： Lutska, Nataliia Zaiets, Nataliia Vlasenko, Lidiia Junge, Stefan National University of Food Technologies Dept. of Automation and Computer Technologies of Control Systems Kyiv Ukraine National University of Life and Environmental Sciences of Ukraine Dept. of Automation and Robotic Systems Kyiv Ukraine State University of Trade and Economics Dept. of Software Engineering and Cyber Security Kyiv Ukraine Berlin University of Applied Sciences Dept. of Packaging Technology Berlin Germany

ISBN: (纸本)9798350359787

With the economic crisis that is looming over the world due to changes in the energy sector and a reduction in the supply of certain types of products, energy and resource efficiency issues are becoming more relevant for the food industry. Also important is the preservation of the environment and the implementation of Cleaner Production trends. Most enterprises follow the concept of Industry 4.0 and increase efficiency through the implementation of intelligent methods, in particular machine learning. The paper proposes a neural network model of sugar production. The model makes it possible to predict the main estimates of resource efficiency used to correct the technological modes of production by the operator-technologist. The structure of the operational decision support system has been developed and is used by personnel to model and predict changes in resource efficiency estimates and KPIs calculated on their basis. Its feature is the integration of methods for achieving resource efficiency, improving environmental performance and ensuring KPIs. To do this, at the initial stage, an analysis of the main flows that affect resource efficiency and an assessment of their importance was carried out. Ensuring Production Performance is confirmed by the simulation and the adequacy of the created neural network accuracy of more than 95%. © 2023 IEEE.

关键词： Decision support systems

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Application of robust observer-based fdi systems to fault tolerant control 15th

Application of robust observer-based fdi systems to fault to...

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15th World Congress of the International Federation of Automatic control, 2002

作者： Zhang, P. Ding, S.X. Wang, G.Z. Jeinsch, T. Zhou, D.H. Dept. of Automation Tsinghua Univ. Beijing100084 China Inst. of Automatic Control and Complex Systems Univ. of Duisburg Germany Dept. of Electrical Engineering Univ. of Applied Sciences Lausitz Germany

ISBN: (纸本)9783902661746

In this paper, an active fault tolerant control (FTC) strategy is presented for linear dynamic systems. The robust observer-based fault detection and isolation (FDI) systems are applied to guide the reconfiguration of controller parameters to achieve the optimal control performance during different operating conditions of the system: fault-free, fault detected and fault isolated. The selection of design parameters is achieved using the linear matrix inequality (LMI) optimization technique. Copyright © 2002 IFAC.

关键词： Fault detection

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A two-on-one differential game for imposing a relative intercept angle 56

A two-on-one differential game for imposing a relative inter...

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56th Israel Annual Conference on Aerospace Sciences, IACAS 2016

作者： Shaferman, Vitaly Shima, Tal Vienna University of Technology Vienna1040 Austria Technion - Israel Institute of Technology Haifa32000 Israel Institute of Automation and Control Israel Dept. of Aerospace Engineering Israel

A cooperative guidance law for a team of interceptors trying to intercept, from multiple directions, an evading target is proposed. An example scenario of interest is that of intercepting an aerial target, such as a ballistic missile, from multiple directions. The engagement is analyzed in the framework of a linear quadratic zero-sum two-person differential game, where the team of interceptors constitutes one of the adversaries and the target the other. The obtained guidance law for the team of interceptors enables enforcing a relative geometry in-between the group of missiles and the target. Such an approach is superior, in the sense of the required control effort, to that where each interceptor independently enforces, using a one-on-one strategy, a preselected intercept angle that satisfies the relative intercept requirement. A nonlinear two dimensional simulation is used to investigate the performance of the obtained cooperative guidance law and it is shown that the interceptors' acceleration requirements are comparable to conventional guidance laws, that do not impose an angular constraint at interception. © 2016, Israel Annual Conference on Aerospace Sciences. All rights reserved.

关键词： Ballistic missiles

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On Instrumental Variable-Based Method for Identification of Permanent Magnet Synchronous Machine by Noisy Data 4

On Instrumental Variable-Based Method for Identification of ...

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4th International Conference on control Systems, Mathematical Modeling, automation and Energy Efficiency, SUMMA 2022

作者： Ivanov, Dmitriy V Sandler, Ilya L Yakoub, Zaineb Antonova, Victoria V Terekhin, Michail A Bezyazykova, Lubov A Samara State University of Transport Dept. Mechatronics Samara Russia Dept. Automation and Control in Technical Systems Samara State Technical University Samara Russia National Engineering School of Gabes University of Gabes Gabes Tunisia

ISBN: (数字)9781665456593

ISBN: (纸本)9781665456593

The identification of parameters of the permanent magnet synchronous machine (PMSM) is considered. The paper uses a discrete model of the permanent magnet synchronous machine. The proposed algorithm makes it possible to consider the errors in measurements of current, voltage, and electrical angular speed. Extended instrument variables are used to identify parameters. To solve the overdetermined system, total least squares are used. This makes it possible to improve the accuracy of estimates of extended instrumental variables on a finite sample. The simulation results confirmed the high accuracy of the resulting estimates. © 2022 IEEE.

关键词： Permanent magnets

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Structural dynamic characteristics modification via Surface Grooving Technique : Modified algorithm and its result

Structural dynamic characteristics modification via Surface ...

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24th Conference and Exposition on Structural Dynamics 2006, IMAC-XXIV

作者： Park, Mi-You Park, Youn-Sik Han, Sang Bo Center for Noise and Vibration Control Dept. of Mech. Eng. KAIST Daejeon Korea Republic of School of Mechanical Engineering and Automation KyungNam University Korea Republic of

ISBN: (纸本)0912053941

Changing shape of structure has been mostly relied on engineer's experience and time consuming trial-and-error process. In order to develop a systematic method to change structure shape, surface grooving technique has been developed. In this work, the shape of base structure is modified to improve its dynamic characteristics such as natural frequencies via surface grooving technique. Grooving shape is formed by merging the neighboring small embossed elements after analyzing frequency increment sensitivities of all the surrounding emboss elements. As a result of Surface Grooving Technique, optimum grooving shape was automatically obtained. In this technique, the initial grooving position starts from the element having highest modal strain energy then it expands into neighboring elements. The range of grooving area for checking its frequency sensitivities is restricted to their surrounding elements to reduce its computation effort. For the more computationally effective method, the algorithm was modified. Omitting the elements which have low-valued modal strain energy among neighboring elements, target domain can be reduced and computational efficiency is improved. To check the efficiency of modified algorithm, the developed algorithm was tested with hard disk drive (HDD) cover to raise its natural frequency by giving some groove on its surface. To verify the result of simulation, another simulation was carried out to the HDD cover fine FEmodel.

关键词： Computational efficiency

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Retraction notice to “Multi-objective planning of microgrid based on renewable energy sources and energy storage system” [J. Energy Storage 68 (2023) 107803]

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Journal of Energy Storage 2025年 117卷

作者： Hao Tian Keqing Wang Xiufeng Cui Zexi Chen Ergang Zhao Sara Saeedi School of Automation Wuxi University Wuxi 214105 China State Key Lab of Control and Simulation of Power Systems and Generation Equipments Dept. of Electrical Engineering Tsinghua University Haidian District Beijing 100086 China Beijing Sifang Engineering Co. Ltd Beijing 100085 China State Grid Beijing Urban Power Supply Company Beijing 100034 China Electrical Engineering Department Sun-Life Company Baku Azerbaijan

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control switching in high performance and fault tolerant control

Control switching in high performance and fault tolerant con...

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作者： Niemann, Henrik Poulsen, Niels Kjølstad Dept. of Electrical Engineering Automation and Control Technical University of Denmark DK-2800 Kgs. Lyngby Denmark Dept. of Informatics and Math. Modeling Technical University of Denmark DK-2800 Kgs. Lyngby Denmark

ISBN: (纸本)9781424474264

The problem of reliability in high performance control and in fault tolerant control is considered in this paper. A feedback controller architecture for high performance and fault tolerance is considered. The architecture is based on the Youla-Jabr-Bongiorno-Kucera (YJBK) parameterization. By using the nominal controller in the architecture as a simple and robust controller, it is possible to use the YJBK transfer function for optimization of the closed-loop performance. This can be done both in connections with normal operation of the system as well as in connection with faults in the system. The architecture will also allow changing the applied sensors and/or actuators when switching between different controllers. This switching get particular simple for open-loop stable systems. © 2010 AACC.

关键词： Fault tolerance

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IMPROVED CHANGE TRACKING FOR SOFTWARE MAINTENANCE

IMPROVED CHANGE TRACKING FOR SOFTWARE MAINTENANCE

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1991 CONF ON SOFTWARE MAINTENANCE

作者： GARLAND, JK CALLISS, FW Software Tools Development Honeywell Industrial Automation and Control Phoenix 85023 AZ United States Dept. of Computer Science and Engineering Arizona State University Tempe 85287-5406 AZ United States

ISBN: (纸本)081862325X

With an ever increasing body of software to maintain and a small number ofexperiencedpersonnel, it is critical to improve software maintenance practice. One difficult problem maintenance organizations must address is how to document program evolution. Problem or change reporting and tracking is a key aspect of recording changes to large software systems. Large software systems which evolve over a long period of time magnify the need for organized change tracking due to the number and extent of the changes made. This paper describes a method to incorporate problem solving information in a change tracking database. Problem solving is discussed with regard to structured problem solving techniques for isolating difficult problems. A relational database structure and queries to access the database are discussed. An example of how the change tracking system supports the maintenance problem solving process is also included. © 1991 IEEE.

关键词： Computer software maintenance

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Monitoring and Forecasting Quality Indicators of Predough Production in the Bakery Industry 5

Monitoring and Forecasting Quality Indicators of Predough Pr...

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5th IEEE KhPI Week on Advanced Technology, KhPIWeek 2024

作者： Lutska, Nataliia Zaiets, Nataliia Vlasenko, Lidiia Zhyltsov, Andrii Dept. of Automation and Computer Technologies of Control Systems National University of Food Technologies Kyiv Ukraine dept. of Automation and Robotic Systems National University of Life and Environmental Sciences of Ukraine Kyiv Ukraine Dept. of Software Engineering and Cyber Security State University of Trade and Economics Kyiv Ukraine Dept. of Electromagnetic Systems The Institute of Electrodynamics The National Academy of Sciences of Ukraine Kyiv Ukraine

ISBN: (纸本)9798350384499

The work demonstrates the process of developing a machine learning model for a system for monitoring and controlling the quality of predough at a bakery. This system will provide continuous analysis of the predough parameters, such as temperature, humidity, lifting force and titranic acidity, which will ensure timely detection of deviations in the quality of the predough and avoid production problems. In addition, it will help automate the quality control process and ensure the stability of production processes. Analysis and forecasting of dough parameters will improve the quality of produced bread or other bakery products. Management based also on the predicted values of technological indicators of the predough will allow the enterprise to avoid unnecessary costs of materials and energy and increase economic efficiency. As part of the study, seven machine learning models were created and reviewed, including three linear and four varieties of binary decision trees. An analysis of the best model - a regression decision tree - was carried out, confirming its effectiveness and the validity of the resulting hierarchical structure, in particular, the prediction of important indicators of predough with a high degree of reliability, which indicates its importance in practical applications in production. The created model can be used to monitor and control product quality in real time, allowing operators to quickly identify and correct any deviations in process performance. Also, by analyzing changes in the variables of the predough production process, it is possible to identify precursors of possible production accidents or deviations in product quality, which will allow timely measures to be taken to avoid them. ©2024 IEEE.

关键词： Bakeries

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Power Quality Enhancement of DSTATCOM Using E2PLL-Based control Method for Wind Energy Applications 15

Power Quality Enhancement of DSTATCOM Using E2PLL-Based Cont...

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15th International Symposium on Industrial Electronics and Applications, INDEL 2024

作者： Ozer, Ali Sait Sevilmis, Fehmi Karaca, Hulusi Ahmed, Hafiz Konya Technical University Dept. of Control and Automation Technology Konya Turkey Selçuk University Dept. of Electrical and Electronics Engineering Konya Turkey University of Sheffield Nuclear Advanced Manufacturing Research Centre Derby United Kingdom

ISBN: (纸本)9798350352320

DSTATCOM is most commonly used to regulate the voltage generated by the SEIG used in wind turbines. DSTATCOM provides the reactive power required by the SEIG and the load. It uses the DC bus voltage to provide the required reactive power. For effective control, the DC bus voltage must be constant at the desired value and the required reactive power must be correctly determined. This also requires correct estimation of the reference source currents. When the system is loaded with non-linear and unbalanced loads, if the load currents are not well filtered, the active and reactive components of the load currents will be incorrectly estimated. In this paper, an E2 PLL-based control algorithm with superior filtering capability is proposed for the control of SEIG loaded with nonlinear and unbalanced load. The proposed algorithm is tested under nonlinear and unbalanced load conditions. The obtained results clearly prove the effectiveness of the E2 PLL-based control algorithm. © 2024 IEEE.

关键词： Windmill

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