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Price-Based Residential Demand Response Management in Smart Grids:A Reinforcement Learning-Based Approach

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IEEE/CAA Journal of Automatica Sinica 2022年第1期9卷 123-134页

作者： yanni Wan Jiahu qin Xinghuo yu Tao yang yu Kang Department of Automation University of Science and Technology of ChinaHefei 230027China Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefei 230088China School of Engineering RMIT UniversityVIC 3000Australia State Key Laboratory of Synthetical Automation for Process Industries Northeastern UniversityShenyang 110819China Department of Automation State Key Laboratory of Fire ScienceInstitute of Advanced TechnologyUniversity of Science and Technology of ChinaHefei 230027China Key Laboratory of Technology in Geo-Spatial Information Processing and Application Systems Chinese Academy of SciencesBeijing 100190China

This paper studies price-based residential demand response management(PB-RDRM)in smart grids,in which non-dispatchable and dispatchable loads(including general loads and plug-in electric vehicles(PEVs))are both *** PB-RDRM is composed of a bi-level optimization problem,in which the upper-level dynamic retail pricing problem aims to maximize the profit of a utility company(UC)by selecting optimal retail prices(RPs),while the lower-level demand response(DR)problem expects to minimize the comprehensive cost of loads by coordinating their energy consumption *** challenges here are mainly two-fold:1)the uncertainty of energy consumption and RPs;2)the flexible PEVs’temporally coupled constraints,which make it impossible to directly develop a model-based optimization algorithm to solve the *** address these challenges,we first model the dynamic retail pricing problem as a Markovian decision process(MDP),and then employ a model-free reinforcement learning(RL)algorithm to learn the optimal dynamic RPs of UC according to the loads’*** proposed RL-based DR algorithm is benchmarked against two model-based optimization approaches(i.e.,distributed dual decomposition-based(DDB)method and distributed primal-dual interior(PDI)-based method),which require exact load and electricity price *** comparison results show that,compared with the benchmark solutions,our proposed algorithm can not only adaptively decide the RPs through on-line learning processes,but also achieve larger social welfare within an unknown electricity market environment.

关键词： Demand response management(DRM) Markovian decision process(MDP) Monte Carlo simulation reinforcement learning(RL) smart grid

A Novel Tetraiodocadmate（Ⅱ） - PVC Membrane Electrode for the Potentiometric Determination of Cadmium（Ⅱ）

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Chinese Chemical Letters 2006年第7期17卷 941-944页

作者： Fu Chang WANG ya qin CHAI Ruo yuAN Chongqing Key Laboratory of Analytical Chemistry College of Chemistry and Chemical Engineering Southwest University Chongqing 400715

A novel tetraiodocadmate（Ⅱ）-selective membrane electrode consisting of tetraiodo-cadmate（Ⅱ）-rhodamin B ion pair （TICRhB） dispersed in a PVC matrix plasticized with 2-nitrophenyl octyl ether （o-NPOE） was prepared. The sensor demonstrated a near-Nernstian response for 1×10^-2 to 2×10^-6 mol/L cadmium （Ⅱ） at 25℃ with an anionic slope of 29.0. It revealed very good selectivity for Cd^2＋ with negligible interference from many cations and anions, and could be used in a pH range of 3 to 6.

关键词： Tetraiodocadmate(Ⅱ) ion pair membrane electrode.

Generalized Fronts in Reaction-Diffusion Equations with Bistable Nonlinearity

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Acta Mathematica Sinica,English Series 2012年第8期28卷 1633-1646页

作者： ya qin SHU Wan Tong LI Nai Wei LIU School of Mathematics and Statistics Chongqing University of Technology School of Mathematics and Statistics Lanzhou University School of Mathematics and Informational Science Yantai University

In this paper, we first study the existence of transition fronts （generalized traveling fronts） for reaction-diffusion equations with the spatially heterogeneous bistable nonlinearity. By constructing sub-solution and super-solution we then show that transition fronts are globally exponentially stable for the solutions of the Cauchy problem. Furthermore, we prove that transition fronts are unique up to translation in time by using the monotonicity in time and the exponential decay of such transition fronts.

关键词： Reaction-diffusion equation transition fronts uniqueness bistable nonlinearity stability

Simultaneous determination of metronidazole and tinidazole in plasma by using HPLC-DAD coupled with second-order calibration

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Chinese Chemical Letters 2010年第10期21卷 1223-1226页

作者： Li Qun Ouyang Hai Long Wu ya Juan Liu Jian yue Wang Yong Jie yu Hong yan Zou Ru qin yu State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China Zhoushan Municipal Center for Disease Control & Prevention Zhoushan 310062 China

A method using HPLC-DAD coupled with second-order calibration was developed to simultaneously determine metronidazole and tinidazole in plasma samples in this paper. The second-order calibration method based on APTLD （alternating penalty trilinear decomposition） algorithm was proposed to analyze the three-way HPLC-DAD data from both standard and prediction samples, which makes it possible that calibration can be performed even in the presence of unknown interferences with a simple and green chromatographic condition and short analysis time. The results showed that good recoveries were obtained although the chromatographic and spectral profiles of the analytes of interest as well as background were partially overlapped with each other in plasma samples.

关键词： HPLC-DAD Second-order calibration Alternating penalty trilinear decomposition (APTLD) Metronidazole Tinidazole Plasma

The incentive and coordination strategy of sustainable construction supply chain based on robust optimisation

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Journal of Control and Decision 2020年第2期7卷 126-159页

作者： ya-qin Lin Chun-xiang Guo yue Tan Antai College of Economics&Management Shanghai Jiao Tong UniversityShanghaiPeople’s Republic of China Business School of Sichuan University Chengdu 610064People’s Republic of China

This paper considers the incentive and coordination problem of the construction supply chain consisting of the owner,general contractor,subcontractors and suppliers based on the sustainable development goals under uncertain ***,according to the general contract management pattern and the relationships among those participants,we establish an uncertain bi-level nonlinear model in which the owner set the proper intensities to minimise the total cost at first while the general contractor decides its alternative and the limits to subcontractors ***,we convert the primal model into a deterministic bi-level nonlinear programming model based on the concept of relative ***,a solution procedure combing interactive fuzzy technique and genetic algorithm is ***,the validity of the model is verified by a numerical *** paper provides a method to optimise the construction project management from the perspective of supply chain under the requirement of sustainable development.

关键词： Sustainable development construction supply chain incentive coordination bi-level programming robust optimisation

One more step to realistic CO_(2) reduction reactions——geometric structures evolutions at gas-solid interface

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Rare Metals 2024年第2期43卷 849-852页

作者： ya-Qiang Xie Xin yu Ting Wang College of the Environment and Ecology Xiamen UniversityXiamen361102China

A rational design of copper(Cu)nanocatalyst is critical to the efficient carbon dioxide(CO_(2))conversion toward C1/C2 chemical ***,the lack of actual information on the vicinal Cu interfaces hinders the intrinsic activitystructure correlation *** with atomic-scale in situ characterizations(AP-STM and synchrotron-based AP-XPS),Park and co-workers study and identify the adsorbate-driven morphological evolution of Cu nanoclusters on the Cu(997)surface,providing real-space evidence for the critical role of vicinal structures on Cu *** observed surface roughening trends caused by dissociated atomic oxygen and CO adsorbates subsequently affect the result of successive catalytic reactions to produce critical intermediates,such as carbonate and formate,during the CO_(2)reduction reaction.

关键词： reaction critical rational

Leader Selection for Strong Structural Controllability of Single-Integrator Multi-Agent Systems

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Journal of Systems Science & Complexity 2017年第6期30卷 1227-1241页

作者： LIU Peng TIAN yu-Ping ZHANG ya School of Automation Southeast UniversityNanjing 210096China Key laboratory of Measurement and Control of CSE Ministry of EducationNanjing 210096China

This paper addresses the leader selection problem for strong structural controllability(SSC)of multi-agent systems(MASs). For a path-bud graph, it is proved that only one leader is required to guarantee the SSC of MASs. For a special type of topologies, based on the partition of the topology into disjoint pathes and path-buds, it is proved that the MASs is strongly structurally controllable if the root nodes of the pathes are selected as leaders. For general topologies, an algorithm is provided to determine the agents that can behave as leaders. For some special topologies, the minimum number of leaders guaranteeing the robust strong structural controllability(RSSC) of MASs is also *** examples are given to verify the effectiveness of the results.

关键词： Graph partition leader selection multi-agent systems(MASs) strong structural controllability(SSC)

Skyrmion Hall effect with spatially modulated Dzyaloshinskii-Moriya interaction

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Frontiers of physics 2019年第5期14卷 71-79页

作者： Liping Zhou Ren qin ya-qing Zheng Yong Wang School of Physics Nankai UniversityTianjin 300071China

The skyrmion Hall effect is theoretically studied in the chiral ferromagnetic film with spatially modulated Dzyaloshinskii-Moriya *** cases including linear,sinusoidal,and periodic rectangular modulations have been considered,where the increase,decrease,and the periodic modification of the size and velocity of the skyrmion have been observed in the microscopic *** phenomena are well explained by the Thiele equation,where an effective force on the skyrmion is induced by the inhomogeneous Dzyaloshinskii Moriya *** results here suggest that tlic skyrmion Hall effect can be manipulated by artificially timing the DzvaloshinskiiMoriya interaction in chiral ferromagnetic film with material engineering methods,which will be useful to design skyrmion-based spintronics devices.

关键词： magnetic skyrmion skyrmion Hall effect Thiele equation

Synthesis and Bioactivity of Isosteviol Derivatives: A Facile Method for Preparation of Ent-16α-hydroxy-15β-hydroxymethylbeyeran-19-oic Acid

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Chinese Chemical Letters 2005年第11期16卷 1441-1444页

作者： Jing Chao TAO Guo Qiang TIAN yan Bing ZHANG yu qin FU Gui Fu DAI ya WU Department of Chemistry Zhengzhou University Zhengzhou 450052

In this paper, two new compounds, ent-16α-hydroxy-15β-hydroxymethylbeyeran-19-oic acid 4 and its ethyl ester 5 were synthesized in good yield with a facile method that has never been reported. The mechanism of this reaction was discussed and the mono-hydroxymethylation of carbonyl compound with two α-hydrogens via Tollens＇ reaction was firstly achieved. Compounds 2-5 were tested for activity of inhibition against glycosidases, among which 5 displays good inhibition of β-glucosidase and α-mannase, respectively.

关键词： Isosteviol 1,3-diol hydroxylation.