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Consensus Building using Deep Reinforcement Learning for Energy Management

IEIE Transactions on Smart Processing and Computing 2022年第4期11卷 284-291页

作者： Tarutani, Yuya Oishi, Isato Fukushima, Yukinobu Yokohira, Tokumi Faculty of Interdisciplinary Science and Engineering in Health Systems Okayama University Okayama Prefecture Okayama Japan Graduate School of Natural Science and Technology Okayama University Okayama Prefecture Okayama Japan Faculty of Natural Science and Technology Okayama University Okayama Prefecture Okayama Japan

A variety of information is collected from IoT devices. As those devices become more familiar to users, network services must consider the influence of the user. We propose a method to maximize the value from power consumption and minimize the cost incurred to ensure user satisfaction. However, one problem is that user satisfaction cannot increase because it is considered a constraint on power consumption. In this paper, we propose a consensus building method to minimize power consumption and maximize user satisfaction. An exhaustive search incurs a large calculation overhead to determine device parameters. Thus, the proposed method uses reinforcement learning to solve this problem. From its evaluation, we clarify that the proposed method attains about 1.5 times the total reward compared with the conventional method. Moreover, we also clarify that 99.9% of the total reward can be achieved, compared to the exhaustive search. © 2022 Institute of Electronics and Information Engineers. All rights reserved.

关键词： Reinforcement learning

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Regulating the inner Helmholtz plane structure at the electrolyte-electrode interface for highly reversible aqueous Zn batteries

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Journal of Energy Chemistry 2024年第8期95卷 57-67,I0002页

作者： Jianghe Liu Sanlue Hu Hexin Guo Guobin Zhang Wen Liu Jianwei Zhao Shenhua Song Cuiping Han Baohua Li Shenzhen Key Laboratory on Power Battery Safety and Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055GuangdongChina Shenzhen Key Laboratory of Advanced Materials School of Materials Science and EngineeringHarbin Institute of TechnologyShenzhen 518055GuangdongChina Faculty of Materials Science and Energy Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina Shenzhen HUASUAN Technology Co. Ltd.Shenzhen 518055GuangdongChina

The development of aqueous Zn batteries is limited by parasitic water reactions,corrosion,and dendrite *** address these challenges,an inner Helmholtz plane(IHP)regulation method is proposed by employing low-cost,non-toxic maltitol as the electrolyte *** preferential adsorption behavior of maltitol can expel the water from the inner Helmholtz plane,and thus hinder the immediate contact between Zn metal and H_(2)***,strong interaction between maltitol and H_(2)O molecules can restrain the activity of H_(2)***,the"IHP adsorption effect"along with the low LUMO energy level of maltitol-CF_(3)SO_(3)^(-)can promote the in-situ formation of an organic-inorganic complex solid electrolyte interface(SEI)*** a result,the hydrogen/oxygen evolution side reaction,corrosion,and dendrites issues are effectively suppressed,thereby leading to highly reversible and dendrite-free Zn plating/*** Zn‖I_(2)battery with hybrid electrolytes also demonstrates high electrochemical performance and ultralong cycling stability,showing a capacity retention of 75%over 20000 charge-discharge cycles at a large current density of 5 A g^(-1).In addition,the capacity of the device has almost no obvious decay over20000 cycles even at-30℃.This work offers a successful electrolyte regulation strategy via the IHP adsorption effect to design electrolytes for high-performance rechargeable Zn-ion batteries.

关键词： Inner Helmholtz plane Adsorption effect Dendrite suppression SEI layer Zn||I_(2)battery

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Finite-time robust performance improvement for non-linear systems in the presence of input non-linearity and external disturbance

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IET Control Theory and Applications 2023年第6期17卷 672-682页

作者： Wang, Haoping Ghaffari, Valiollah Mobayen, Saleh Bartoszewicz, Andrzej Fekih, Afef Assawinchaichote, Wudhichai School of Automation Nanjing University of Science and Technology Nanjing China Department of Electrical Engineering Persian Gulf University Bushehr Iran Graduate School of Intelligent Data Science National Yunlin University of Science and Technology Yunlin Douliou Taiwan Institute of Automatic Control Lodz University of Technology Lodz Poland Department of Electrical and Computer Engineering University of Louisiana at Lafayette LafayetteLA United States Department of Electronic and Telecommunication Engineering Faculty of Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand

The main focus of this research is on improving the performance of dynamic systems with actuator non-linearities and time-varying disturbances. To this end, using the concept of finite-time stability, a novel observer is presented to estimate the disturbances in systems with input non-linearities. Then, introducing an innovative sliding manifold, a robust observer-based technique is derived to guarantee the finite-time stability of the sliding surface. Hence, the closed-loop system would be stable in the presence of hard non-linearities and time-varying disturbances. The performance of the proposed approach was assessed in using a simulation study of two numerical examples. The obtained results and comparison with a conventional method confirmed the benefits of the suggested approach. © 2022 The Authors. IET Control Theory & Applications published by John Wiley & Sons Ltd on behalf of The Institution of engineering and technology.

关键词： Closed loop systems

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Link Design and Control of Fixed Wireless systems in Millimeter-Wave and Optical Converged Network

Link Design and Control of Fixed Wireless Systems in Millime...

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2023 IEEE Conference on Antenna Measurements and Applications, CAMA 2023

作者： Kanno, Atsushi Weng, Zu-Kai Kawanishi, Tetsuya Nagoya Institute of Technology Graduate School of Engineering Aichi Japan National Institute of Information and Communications Technology Tokyo Japan Waseda University Faculty of Science and Engineering Japan

Millimeter-wave fixed wireless systems and optical fiber converged network is proposed with their link design and control strategy. The environmental sensors attached to the FWSs are utilized for the link performance ... 详细信息

ISBN: (纸本)9798350323047

关键词： Millimeter waves

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Social Radars: Finding Targets in Cyberspace for Cybersecurity

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IEEE/CAA Journal of Automatica Sinica 2024年第2期11卷 279-282页

作者： Lili Fan Changxian Zeng Yutong Wang Jiaqi Ma Fei-Yue Wang School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China School of Science Dalian Minzu UniversityDalian 116600China State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China Department of Civil and Environmental Engineering University of CaliforniaLos AngelesCA 90024 USA IEEE State Key Laboratory for Management and Control of Complex Systems Chinese Academy of SciencesBeijing 100190 Faculty of Innovation Engineering Macao University of Science and TechnologyMacao 999078China

INSPIRED by the insight from American political scientist Lasswell, who summarized the environmental role in societal surveillance [1], Schramm coined the term “social radar” [2] as it resembles the activities of radar in collecting and processing information, playing a crucial role in helping humans perceive changes in the internal and external environment and promptly adjusting adaptive behaviors.

关键词： prompt summarized insight

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Maximum Power Point Tracking technology for PV systems: Current Status and Perspectives

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Energy engineering 2024年第8期121卷 2009-2022页

作者： Bo Yang Rui Xie Zhengxun Guo Faculty of Electric Power Engineering Kunming University of Science and TechnologyKunming650500China Intelligent Electric Power Grid Key Laboratory of Sichuan Province Chengdu610065China Foshan Graduate School of Innovation Northeastern UniversityFoshan528311China College of Information Science and Engineering Northeastern UniversityShenyang110819China

Maximum power point tracking(MPPT)technology plays a key role in improving the energy conversion efficiency of photovoltaic(PV)systems,especially when multiple local maximum power points(LMPPs)occur under partial shading conditions(PSC).It is necessary to modify the operating point efficiently and accurately with the help of MPPT technology to maximize the collected *** though a lot of research has been carried out and impressive progress achieved for MPPT technology,it still faces some challenges and ***,the mathematical model established for PV cells is not precise ***,the existing algorithms are often optimized for specific conditions and lack comprehensive adaptability to the actual operating ***,a single algorithm may not be able to give full play to its *** the end,the selection criteria for choosing the suitable MPPT algorithm/converter combination to achieve better performance in a given scenario is very ***,this paper systematically discusses the current research status and challenges faced by PV MPPT technology around the three aspects of MPPT models,algorithms,and hardware *** in-depth thinking and discussion,it also puts forward positive perspectives on future development,and five forward-looking solutions to improve the performance of PV systems MPPT are suggested.

关键词： PV systems MPPT partial shading condition DC-DC converter

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Layered niobium carbide enabling excellent kinetics and cycling stability of Li-Mg-B-H hydrogen storage material Layered niobium carbide enabling excellent kinetics

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Rare Metals 2024年第3期43卷 1153-1166页

作者： Li-Wen Lu Hui Luo Guang-Xu Li Yun Li Xin-Hua Wang Cun-Ke Huang Zhi-QiangLan Wen-Zheng Zhou Jin Guo Mohammad Ismail Hai-Zhen Liu Guangxi Novel Battery Materials Research Center of Engineering Technology Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems IntegrationSchool of Physical Science and TechnologyGuangxi UniversityNanning530004China State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures Nanning530004China School of Mechanical and Electrical Engineering Quzhou College of TechnologyQuzhou324000China Department of Materials Science and Engineering Zhejiang UniversityHangzhou310027China Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu21030Kuala NerusTerengganuMalaysia Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin300071China

The Li-Mg-B-H composite(2LiBH_(4)+MgH_(2))has a high capacity of 11.4 wt%as a hydrogen storage ***,the slow kinetics and poor cycling stability severely restrict its practical *** this work,a layered Nb_(2)C MXene was first synthesized and then introduced to tailor the kinetics and cycling stability of the Li-Mg-B-H *** milled 2LiH+MgB_(2)composites were initially hydrogenated to obtain the 2LiBH_(4)+MgH_(2)*** 2LiBH_(4)+MgH_(2)+5wt%Nb_(2)C can release 9.0 wt%H_(2)in 30 min at 400℃,while it is only 2.7 wt%for the undoped 2LiBH_(4)+MgH_(2).The dehydrogenation activation energies of MgH_(2)and LiBH_(4)are 123 and 154 kJ·mol^(-1)respectively for the 5 wt%Nb_(2)C-doped composite,lower than the undoped composite(164 and 165 kJ·mol^(-1)).The 2LiBH_(4)+MgH_(2)+5 wt%Nb_(2)C possesses excellent cycling stability,with the reversible capacity only slightly reduced from 9.4 wt%for the 1st cycle to 9.3 wt%for the 20th ***_(2)C keeps stable in the composite and acts as an efficient catalyst for the Li-Mg-B-H *** is believed that both the layered structure and the active Nb element contribu te to the enhanced hydrogen storage performances of the Li-Mg-B-H *** work confirms that the Nb_(2)C MXene with layered stru cture has a significant enhancing impact on the Li-Mg-B-H hydrogen storage materials,which is different from the bulk NbC.

关键词： Hydrogen storage Lithium borohydride Magnesium hydride Nb_(2)C MXene

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Development Plan and Trial of Japanese Language e-Learning System Focusing on Content and Language Integrated Learning (CLIL) Suitable for Digital Education

Development Plan and Trial of Japanese Language e-Learning S...

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IFIP World Conference on Computers in Education, WCCE 2022

作者： Nakamura, Shizuka Wasaki, Katsumi Graduate School of Medicine Science and Technology Shinshu University Nagano Japan Faculty of Engineering Shinshu University Nagano Japan

ISBN: (纸本)9783031433924

In the field of Japanese language education, even though it is very important to solidify the foundation of a student’s pronunciation ability, this area is sometimes neglected due to a bias towards grammar lecturing and vocabulary building. In addition, although audio materials are commonly included in teaching materials, few students use them for self-learning. However, for non-kanji-reading learners, learning the Japanese writing systems (hiragana, katakana, and kanji) can be a major obstacle, which means audio materials increase in importance by providing an effective alternative way to learn the Japanese language. With those points in mind, this paper examines the development of digital education (DX) e-learning materials that can provide non-kanji-reading learners with authentic contexts and serve as a bridge to learning correct speech without causing them to feel psychologically intimidated by the intricacies of Japanese writing systems. We then report on the use of the first teaching materials developed for Japanese language education using neural speech based on a pedagogical method known as Content and Language Integrated Learning (CLIL). This material was developed as courseware on Moodle. © 2023, IFIP International Federation for Information Processing.

关键词： Students

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Fault and Load Current Interruption in Low-Voltage System Using Fuse-Semiconductor Current-Limiting Circuit Breaker

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IEEJ Transactions on Industry Applications 2024年第6期144卷 502-508页

作者： Inada, Yuki Zen, Shungo Ohnishi, Wataru Kodama, Naoto Nakano, Yusuke Takada, Yasuhiro Sasaki, Reon Miyaoka, Yuta Tsukamoto, Kosuke Yamada, Keiya Yamano, Yasushi Graduate School of Science and Engineering Saitama University 255 Shimo-Okubo Sakura-ku Saitama Saitama338-8570 Japan School of Engineering Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo152-8550 Japan Graduate School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku Aichi Nagoya464-8603 Japan Institute of Science and Engineering Kanazawa University Kakuma-cho Ishikawa Kanazawa920-1192 Japan Faculty of Pure and Applied Sciences University of Tsukuba 1-1-1 Tenodai Ibaraki Tsukuba305-8573 Japan

For the realization of carbon neutrality and an advanced information society, we have previously developed a novel current-limiting circuit breaker composed of a fuse, a power semiconductor and a fuse exchanger. However, its feasibility has been confirmed only for fault current interruption in a low voltage range of 100–500 V. In this paper, the current-limiting circuit breaker was successfully used for fault and load current interruption at DC 1.5 kV, thus demonstrating the high versatility of the circuit breaker. © 2024 The Institute of Electrical Engineers of Japan.

关键词： Electric circuit breakers

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A Detection Method of Garbage Collection Status from Sound of Garbage Trucks

A Detection Method of Garbage Collection Status from Sound o...

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2024 IEEE International Conference on Consumer Electronics, ICCE 2024

作者： Kunieda, Yuki Suzuki, Hidekazu Meijo University Graduate School of Science and Technology Aichi468-8502 Japan Meijo University Faculty of Information Engineering Aichi468-8502 Japan

ISBN: (纸本)9798350324136

As part of services for citizens in smart cities and the Sustainable Development Goals, there is a service that visualizes the status of garbage collection and allows citizens and government officials to check the status. In Japan, household garbage is put into designated garbage bags and dropped off at designated collection points or in front of homes, and garbage trucks collect them. Therefore, it is not possible to introduce the well-known method of detecting the presence or absence of garbage by attaching sensors to garbage containers. This paper proposes a method to determine the garbage collection status from the sound emitted by garbage trucks utilizing edge computing. A spectrogram of the garbage truck sound is generated and a Convolutional Neural Network is used to identify the characteristic sounds generated during garbage collection. The proposed method was applied to 14 days of garbage collection, and it was confirmed that the proposed method could determine the garbage collection with 90 % accuracy. © 2024 IEEE.

关键词： CNN Garbage collection Loading Sound

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