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5th International Symposium on Material, Mechatronics and Energy 2018, ISMME 2018

作者： Nugraha, Muhammad Ifan Utomo, Ardiansyah Tri Taufik, Akhmad Tandioga, Remigius Syam, Rafiuddin Center for Mechatronics and Control System Departement of Mechatronics Engineering State Polytechnic of Ujung Pandang Makassar Indonesia Mechanical Engineering Dept. Hasanuddin University Indonesia

Quadcopter is an unmanned aircraft that could be used as an image recorder at various view angle that can't be placed by a human. This research is done to planning, building and implement a quadcopter that is equipped with a camera. Then, we apply for a tracking object program in the quadcopter which is called image processing. Therefore, this research begins by designing the mechanical and electrical of the quadcopter. While the designing of the software is done by making image processing program using C++. Data collection is done by testing the device in each section. Based on the result of research and testing, the result shows that quadcopter could follow a straight moving human, then it turns 90 to right as far as 10 meters. But, there are any movements that we did not expect before, which is in the altitude of the quadcopter, it because of the instability of the loiter flight mode. © Published under licence by IOP Publishing Ltd.

关键词： Image processing

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Feasibility analysis of single-end equivalent modeling to LCC-HVDC transimission system 4

Feasibility analysis of single-end equivalent modeling to LC...

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4th IEEE Conference on Energy Internet and Energy system Integration, EI2 2020

作者： Wang, Bin Li, Zhizhong Guo, Qi Liu, Zhijiang Li, Shuyong Cui, Liu Tsinghua University Dept. of Electrical Engineering Beijing China Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System Guangzhou China National Energy Power Grid Technology RD Centre Guangzhou China CSG Key Laboratory for Power System Simulation Electric Power Research Institute China Southern Power Grid Guangzhou China

ISBN: (纸本)9781728196060

The commutation failures seriously threaten the safe operation of hybrid AC/DC grid. Considering that commutation failure occurs only on the inverter side, it is very important to study the voltage controlled current source model of LCC HVDC single terminal measurement information with high equivalent accuracy, which is very important for the practicality of real-time electromagnetic transient simulation of LCC HVDC dynamic phasor model. In order to this problem, this paper further discusses the single terminal equivalent model of LCC HVDC system which does not depend on the measurement information of DC sending end AC system, and explores the estimation method of single terminal fast transient response of complex AC/DC coupling faults induced by AC side fault of LCC HVDC inverter station and participation of DC control separation. The error distribution of single terminal equivalent calculation is quantitatively analyzed to lay a foundation for the follow-up protection and control technology research. © 2020 IEEE.

关键词： Electric inverters

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Fuzzy based state observer of a solar trough field 30

Fuzzy based state observer of a solar trough field

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30th Irish Signals and systems Conference, ISSC 2019

作者： Sanchez, Adolfo J. Escano, Juan Manuel Bordons, Carlos Camacho, Eduardo F. Universidad de Sevilla Dept. of System Engineering and Automatic Control Camino de los Descubrimientos s/n Sevilla41092 Spain

ISBN: (纸本)9781728128009

The estimation of unobservable states of a process is important when using control techniques that assume, said a priori, known values. The controllers based on the state space present good behavior and efficiency, even when the dynamics of the process are non-linear. One of the processes with non-linear dynamics and in which not all the states are observable is the case of parabolic trough solar plants. In this work an observer is presented, based on a fuzzy inference system, for the estimation of the temperature profiles of the loops that make up the solar field. This is a English translation of an earlier work presented in the XXXIX Spanish workshop in Automatic control [15]. © 2019 IEEE.

关键词： Model predictive control

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Adaptive sliding mode control design for the 2-DOF robot arm manipulators

Adaptive sliding mode control design for the 2-DOF robot arm...

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2019 International Conference on Computer, control, Electrical, and Electronics engineering, ICCCEEE 2019

作者： Eltayeb, Ahmed Rahmat, M.F. Mohammed Eltoum, M.A. Sanhoury, Ibrahim M.H. Basri, M.A.M. Universiti Teknologi Malaysia Division of Control and Mechatronics Engineering Skudai Johor81310 Malaysia King Fahd University of Petroleum and Minerals System Engineering Dept Dhahran31261 Saudi Arabia Alneelain University Dept. of Control Engineering Khartoum Sudan

ISBN: (纸本)9781728110066

In this paper, an adaptive sliding mode (ASMC) controller designed for a multi-inputs and multi-outputs (MIMO) robotic arm nonlinear manipulator system. The controller is designed based on Lyapunov theorem to achieve a robust trajectory tracking taking into consideration the system's uncertainties in addition to reducing the effect of chattering problem associated with the traditional sliding mode control. It's found that, even in the presence of the parameters' uncertainties, the performance of the proposed controller for the trajectory tracking is robust. Furthermore, chattering is significantly reduced. © 2019 IEEE.

关键词： controllers

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Partial Pole Placement using Static Output Feedback

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IFAC-PapersOnLine 2020年第2期53卷 4527-4533页

作者： Manuel Pusch Julian Theis Daniel Ossmann Institute of System Dynamics and Control German Aerospace Center (DLR) 82234 Weßling Germany Institute of Aircraft Systems Engineering Hamburg University of Technology 21129 Hamburg Germany Dept. of Mechanical Automotive and Aeronautical Engineering Munich University of Applied Sciences 80335 Munich Germany

For many dynamical systems it is required to specifically shift individual poles, especially when these poles are lightly damped or even unstable. To achieve that, a preferably large number of effectors and measurements are installed leading to multivariable control problems. In this paper, a novel control approach is presented for placing either a single pole or a conjugate complex pole pair at a predefined location using rank-one static output feedback. Rank-one feedback can be interpreted as blending inputs and outputs to define a single input and single output loop with a desirable root locus along which the pole is moved. The corresponding controller synthesis is reduced to an unconstrained optimization problem in a single variable that aims at minimizing the feedback gain. Although the approach is derived for a single pole or conjugate complex pole pair, it is easily extended to multiple poles. To this end, a repeated design and superposition of rank-one feedback gains is proposed. It is further shown how residual system dynamics as well as subsequently designed gains can be efficiently decoupled from each other in order to avoid undesired interactions and spillover effects. The effectiveness of the proposed control approach is demonstrated by means of a numerical example.

关键词： static feedback control multivariable systems pole assignment blending of inputs outputs modal control

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Moisture Content Detection system by using Microwave Sensor

Moisture Content Detection System by using Microwave Sensor

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2019 Research, Invention, and Innovation Congress, RI2C 2019

作者： Seewattanapon, Somporn Tripetch, Kittipong Lertwiriyaprapa, Titipong Akkaraekthalin, Prayoot Rajamangala University of Technology Suvarnabhumi Dept. of Electronic and Telecommunication Engineering Nonthaburi Thailand Industrial Electric and Control System Research Center Faculty of Technical Education King Mongkut's University of Technology North Bangkok Dept. of Teacher Training in Electrical Engineering Bangkok Thailand Faculty of Engineering King Mongkut's University of Technology North Bangkok Bangkok Thailand

ISBN: (纸本)9781728141008

This paper presents microwave sensor system for moisture content measurement of paddy in hopper silo. The sensor utilizes near-field transmission measurement technique operating at 400-500-MHz implemented by using double dipole antenna fabricated on FR-4 substrate. This proposed system is installed at the bottom of the hopper silo to collect moisture content. The moister contents of paddy in hopper silo from 12%-30% are measured and characterized. The extracted moisture contents from the sensors in this paper show an agreement of higher than 93% as compared with the commercial instrument in rice mill. In the system testing, the detection system is installed besides the silo 50 ton. IoT system was used to collect the result such as moisture and temperature of the system. © 2019 IEEE.

关键词： Microwave sensors

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A New Method for Deriving Weights in Group Fuzzy Analytic Hierarchy Process and Evaluation Measures

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IFAC-PapersOnLine 2020年第2期53卷 7941-7946页

作者： Lin Che Yeming Zhang Jingcheng Wang Miaoshun Bai Dept. of Automation Shanghai Jiaotong University Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai 200240 China Shanghai Municipal Engineering Design Institute (Group) Co. Ltd. China Autonomous Systems and Intelligent Control International Joint Research Center Xi’an Technological University Xi’an Shaanxi 710021 China

The paper discusses fuzzy comparison matrices, consistency check, weight prioritization methods and weight evaluation methods in fuzzy group analytic hierarchy process. There are various methods of weight prioritization, however, they are not critically evaluated. In the paper, two measures are introduced for the evaluation of the group weights. Then, a new method is proposed to improve the process of deriving weights and use it in an application compared to another common three methods. Our results show that the new method is a good method for deriving weights of indexes.

关键词： Group Fuzzy AHP Ari-Geo Method Assessment Measure Fuzzy Consistency Check Triangular Fuzzy Number

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A hybrid model based on stacking and multi-correction mechanisms for urban water demand prediction ⁎

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IFAC-PapersOnLine 2020年第2期53卷 16685-16690页

作者： Yang Lan Jingcheng Wang Miaoshun Bai Ibrahim Brahmia Haotian Xu Piao Hu Yuhao Long Yeming Zhang Dept. of Automation Shanghai Jiaotong University Key Laboratory of System Control and Information Processing Ministry of education of China Shanghai 200240 China. Autonomous Systems and Intelligent Control International Joint Research Center Xi’an Technological University Xi’an Shaanxi710021 China. Shanghai Municipal engineering Design Institute (Group) Co. Ltd.

Water demand prediction is the key link for the effective operation of urban intelligent water supply system. Since the non-linearity and complex variability of water consumption, it is difficult for traditional water demand prediction models to guarantee high accuracy for a long period. Different holiday types and even tiny changes in temperatures can affect urban water demand seriously. This paper proposes a Stacking-based hybrid model which integrates multi-correction mechanisms to address these problems. A better stacking model is proposed to minimize the generalization error. The stability and reliability of predictions are improved through the design of multi-correction mechanisms such as high temperature weather compensation feature, holiday-type correction model and water quantity fluctuation correction model. Comparing different models before and after stacking also before and after correcting, the prediction accuracy of the proposed hybrid model is much higher and the predictions are more stable and reliable.

关键词： Water supply system Prediction methods Hybrid models Stacking methods Multi-correction mechanisms Neural-network models Time-series analysis

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On Hammerstein and Wiener structure for data driven modelling in complex and nonlinear systems;A case study in smart building integrated microgrid

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AIP Conference Proceedings 2023年第1期2580卷

作者： Reza Fauzi Iskandar Edi Leksono Endra Joelianto Koko Friansa Irsyad Nashirul Haq Dept. of Eng. Physics Faculty of Industrial Technology Institut Teknologi Bandung Bandung Indonesia Engineering Physics School of Electrical Engineering Telkom University Bandung Indonesia Engineering Physics Research Group Faculty of Industrial Technology Institut Teknologi Bandung Bandung Indonesia Instrumentation and Control Research Group Faculty of Industrial Technology Institut Teknologi Bandung Bandung Indonesia Energy System Engineering Faculty of Industrial and Production Technology Institut Teknologi Sumatera Lampung Indonesia

Smart building integrated microgrid development shows attractive progress in research and application. Related structures of smart building and microgrid growth are more and more complex that requires sophisticated modeling methods. This situation may not simple, nonlinear, and distributed so difficult to obtain a related model analytically. This is an opportunity for researchers to develop a dynamic model from a data-driven modeling perspective. This paper aims to conduct a literature review and application study to map the potential and challenges of developing the Hammerstein and Wiener structure in complex and nonlinear systems modeling, as well as smart building integrated microgrid.

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Simulation of energy resonant tunneling in short-period superlattice (Ga,Mn)As/GaAs quantum wells

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AIP Conference Proceedings 2021年第1期2372卷

作者： Mubarak H. Oglah Sabri J. Mohammed Moustafa S. El-Daher 1Tikrit University College of Petroleum Processes Engineering Dept. of Petroleum System Control Engineering Iraq 2Tikrit University College of Education for Pure Sciences Dept. of Physics Iraq 3Damascus University College of Sciences Dept. of Physics Syria

In this study, we have applied the numerical simulation and the mathematical analysis to study the resonant tunneling in the case of the existing barriers of electromagnetic material in a superlattice and the effect of the spinning on the energy resonant tunnel. We investigated the tunneling and resonant tunnel in (Ga, Mn)As/GaAs structure of the electron spinning through the superlattice. we found that the levels of resonance are formed inside the barriers and dependence the resonant tunnel for the electron on the spinning up or down of the magnetic materials barriers and lead to the formation of minibands that cause the tunnel phenomenon. We found that symmetry on the long direction of wavefunction growth provides an appropriate wavenumber, as well as the weak coupling between the adjacent wells leading to the formation of so narrow minibands in comparison with the frequency band for the traditional semiconductors. It also turned out that the unit binary class cell specifies the width of the minibands while the potential barriers which depend on spinning lead to the division. In our study, we found that the right choice of the magnetic insulator layers and the layers of the semiconductor enables the lowest minibands to decompose and be divided into two spherical minibands. We Found The maximum transmission coefficient T(E) at energy 0.27 eV for up spin and 0.42eV for a down spin.

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