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3rd conference on Fully Actuated System Theory and Applications (FASTA)

作者： Liu, Li Li, Jisen Zhao, Dongqi Chen, Qihong Wuhan Univ Technol Sch Automat Wuhan 430070 Peoples R China

ISBN: (纸本)9798350373707;9798350373691

The performance and durability of proton exchange membrane fuel cell (PEMFC) system are greatly associated with the oxygen excess rate (OER). However, the strongly nonlinear, coupling with numerous unavailable internal states PEMFC system pose a challenge to the OER control. To address it, this paper proposed an observer-based cascaded sliding mode controller. The cascaded controller is composed of the outer loop for oxygen excess ratio tracking and inner loop for compressor flow rate regulation, providing the accurate and fast control of OER. In addition, an injection term-based nonlinear observer is developed to estimate the unmeasurable states in the solution of control procedure. The comparative simulation with current control strategies is executed, the results demonstrate a more accurate and fast control of proposed method by the enhancement of mean absolute percentage error (MAPE) and regulation time with 5.73% and 6.98s.

关键词： Proton exchange membrane fuel cell Oxygen excess ratio Sliding mode Injection term

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Smart Intelligent Traffic control System for Emergency Vehicles 3

Smart Intelligent Traffic Control System for Emergency Vehic...

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3rd International conference on Applied Artificial Intelligence and Computing, ICAAIC 2024

作者： Ratna Kumar, R.V.S. Reshma, S. Shalini, K. Sadhana, N. Anoohya, N. Information Technology Vignan's Institute of Engineering for Women Visakhapatnam India

ISBN: (纸本)9798350375190

The growth of industrialization and urbanization has stimulated a surge in population and vehicles, causing severe traffic congestion and impeding the timely movement of emergency vehicles, including loss of lives and heightened strain on healthcare facilities. In response, this study introduces a smart intelligent traffic control system for emergency vehicles. The proposed system integrates sound sensor technology with traffic signals to activate green lights for ambulances traversing congested areas. In the absence of ambulance detection, priority is accorded to high-density roads, effectively mitigating congestion. A blue indicator light signifies the presence of an ambulance at each intersection, enhancing public awareness. The project's objectives encompass optimizing traffic flow, refining emergency response times, and augmenting road safety in urban locales. By prioritizing ambulance passage and bolstering public awareness, the system reduces delays and diminishes the likelihood of adverse health outcomes. © 2024 IEEE.

关键词： Ambulances

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Fault Localization of Distribution Network Based on Reverse-Local Learning based Particle Swarm Optimization Algorithm 3

Fault Localization of Distribution Network Based on Reverse-...

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3rd International conference on Energy and Electrical Power Systems (ICEEPS)

作者： Zhang, Wei Zhou, Yangjun Yi, Chenying Li, Shan Feng, Bin Huang, Weixiang Pan, Juntao Zhou, Yuanchao Wu, Lifang Guangxi Power Grid Co Ltd Elect Power Res Inst Guangxi Key Lab Intelligent Control & Maintenance Nanning Peoples R China Guangxi Power Grid Co Ltd Nanning Peoples R China Guangxi Power Grid Co Ltd Nanning Power Supply Bur Nanning Peoples R China

ISBN: (纸本)9798350375145;9798350375138

With the large-scale access of distributed generation, the power flow characteristics of distribution network have been greatly changed. The conventional fault localization methods for distribution networks are no longer applicable. To deal with the problems induced by large-scale access of distributed generation, a novel fault localization method based on improved particle swarm optimization algorithm is proposed in this paper. Aiming at the issues of potential misjudge, an objective function/ fitness value correction method is proposed to adapt to bidirectional power flow induced by distributed generation. Aiming at the issues of sluggish convergence and poor robustness in existing models, this paper introduces the Reverse-Local Learning based Particle Swarm Optimization algorithm to improve the optimization efficiency and algorithm stability. Case study is performed on the IEEE-33 bus distribution network to demonstrate the accuracy and efficiency of the proposed fault localization method.

关键词： fault localization distributed generation bidirectional power flow particle swarm optimization algorithm

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Low carbon economic dispatch of integrated energy systems considering carbon capture and power-to-gas coupling 3

Low carbon economic dispatch of integrated energy systems co...

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3rd International conference on Energy, Power and Electrical Technology, ICEPET 2024

作者： Li, Hongchang Zhou, Renjun Smart Grids Operation and Control Key Laboratory of Hunan Province Hunan Changsha410004 China

ISBN: (纸本)9798350352658

In the context of green and low-carbon energy transition, a carbon capture technology (CCS) with liquid storage tanks and an optimal scheduling strategy for the integrated energy system (IES) of electricity-to-gas conversion are proposed. First, the energy flow and operation mechanism of CCS containing liquid storage tanks are studied and modelled;secondly, a power to gas (P2G) model is constructed, which utilizes the time-shift characteristics of CO2 captured by the liquid storage CCS to convert electricity to methane when the wind power is rich. Finally, the validity of the model is verified by arithmetic simulation. © 2024 IEEE.

关键词： Carbon capture and utilization

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A Dynamic Speed Limiting control Method of Expressway Based on the Prevention of Secondary Traffic Accidents 3

A Dynamic Speed Limiting Control Method of Expressway Based ...

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3rd International conference on Internet of Things and Smart City, IoTSC 2023

作者： Luo, RuiQi North China Municipal Engineering Design & Research Institute CO.LTD China

ISBN: (纸本)9781510666375

This research uses video detection equipment to obtain traffic flow data, calculate the probability of secondary accidents after an accident, automatically adjust the speed limit value of expressway according to the real-time changes of road traffic flow after an accident, release the speed limit value through variable information information boards, and actively intervene in the operation of traffic flow on the expressway, so as to reduce the probability of secondary accidents and accident risk, It aims to improve traffic flow operation, reduce speed dispersion, ease traffic congestion, and improve driving safety. © 2023 SPIE.

关键词： Traffic congestion

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2024 3rd International conference on Electrical, control and Information Technology

2024 3rd International Conference on Electrical, Control and...

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2024 3rd International conference on Electrical, control and Information Technology, ECITech 2024

The proceedings contain 61 papers. The topics discussed include: research on new distributed distribution network hidden fault remote automatic recovery technology;research on high-resolution capacitance detection circuit based on T-type network;parallel circuit currents in stator windings of a pumped storage power station;a current-mode bandgap reference with robust start-up behavior;a novel boost power converter suitable for bearingless switched reluctance motor with wider rotor teeth;research on discharge characteristics of synthetic ester-paper insulation under power frequency and low frequency;research on the application of balanced windings in wind farm booster stations;simulation of temperature rise in low voltage winding of natural oil circulation transformer and analysis of oil flow heat dissipation;and optimum frequency tracking of the ultrasonic motor based on a three-level constant voltage drive.

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Power Losses Balancing Method for Multi-port Magnetic Network Energy Routers under Hybrid Phase Shift Time Sharing control 3

Power Losses Balancing Method for Multi-port Magnetic Networ...

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3rd International conference on Power Systems and Electrical Technology, PSET 2024

作者： Lv, Yongqing Deng, Fujin Kaddah, Sahar S. Abulanwar, Sayed Southeast University School of Electrical Engineering Nanjing China Mansoura University Faculty of Engineering Mansoura Egypt

ISBN: (纸本)9798350353204

Multi-port magnetic network energy routers (MNERs) are attractive for applications with integration of multiple renewable sources, storages, and loads with the advantages of high efficiency and power density, high safety with isolation, and high controllability. Hybrid phase shift time sharing (PSTS) control is advantageous for regulating the power flow in MNERs, which decouples the power flow and reduces the filtering capacitance. However, the average operation time is unevenly distributed in different H-bridge ports in MNERs under hybrid PSTS control, which would cause the unbalanced power losses distribution and thus reduce the reliability of MNERs. This paper proposes a duty cycle rotation (DCR)-based power losses balancing method under hybrid PSTS control for MNERs, which rotates the operation duty cycles for different H-bridge ports at an appropriate frequency. The proposed DCR-based method can effectively achieve the power losses balance, and according improve the reliability of MNERs. Simulation studies with the professional tool PLECS are conducted and the simulation results show the effectiveness of the proposed method. © 2024 IEEE.

关键词： Hybrid power

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Non-linear Science University Course Building Variant 3

Non-linear Science University Course Building Variant

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3rd International conference on Technology Enhanced Learning in Higher Education, TELE 2023

作者： I.krivosheev, Oleg Institute of Control Sciences Ras Lab 40: Laboratory of Intellectual Control Systems Moscow Russia

ISBN: (纸本)9798350326567

The non-linearity science is a still hard-boning discipline often unrecognized or denied to exist. That is not wondering due to the literature flow with many ideas in many words but with no formulas at all. Due to the lack of efficient material, one needs to complexly revise the current core of formal models (and formal fact-knowledge) to build a maybe single possible current art state standard course core. © 2023 IEEE.

关键词： neural networks non-linearity nonlinear science introduction course synergetic.

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An efficient model for capturing gas transients in the energy flow of integrated electricity-gas systems

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ENERGY REPORTS 2023年 9卷 127-136页

作者： Du, Hui Lin, Tao Li, Qingyan Fu, Xiyue Xu, Xialing Wuhan Univ Sch Elect Engn & Automat Hubei Engn & Technol Res Ctr AC DC Intelligent Distribut Network 8 Donghu South Rd Wuhan 430072 Peoples R China Cent China Branch State Grid Cooperat China 225 Xudong Rd Wuhan 430077 Peoples R China

Gas-fired units provide great flexibility to accommodate the intermittent nature of renewable energy sources and are also considered to be an ideal substitute for retiring coal-fired generations. However, the increasing deployment of gas-fired units deepens interdependency between electric power and natural gas, calling for efficient modeling of the heterogeneous energy flow in the integrated electricity-gas systems (IEGS). Plenty of research works show the necessity of considering gas flow transients in the IEGS, which can be described by a set of partial differential equations (PDEs). To ensure a tractable optimization, the PDEs are often discretized using the finite/infinite difference method, which may result in a large computational scale for achieving good precision. To this end, this paper proposes an efficient model for capturing gas flow transients in the IEGS, which can be taken as the operational constraints in the optimal energy flow model for IEGS coordinated planning, scheduling, and control. For improving the computational efficiency, the PDE-based transient gas flow model is discretized using a space-time orthogonal collocation (OC) method, which provides high-quality results using fewer spatial-temporal discrete points than differential methods. Further, aiming at the difficulty in the determination of the number of space-time collocation points, an adaptive strategy is proposed and embedded in the proposed model utilizing the local fitting errors of state variables related to pipelines. Case studies show the superiority in computational accuracy and efficiency of the proposed model over the existing models based on Wendorff difference and global OC. And an illustrative case based on the modified IEGS benchmark system composed of the IEEE 118-bus power system and the Belgian 20-node gas network exhibits the application value of the proposed model in the optimization and control of the IEGS. (c) 2023 The Author(s). Published by Elsevier Ltd.

关键词： Energy internet Integrated electricity-gas system (IEGS) Transient gas pipe flow Space-time orthogonal collocation (OC) Partial differential equation (PDE)

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2024 3rd International conference on Aerospace, Aerodynamics and Mechatronics Engineering

2024 3rd International Conference on Aerospace, Aerodynamics...

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2024 3rd International conference on Aerospace, Aerodynamics and Mechatronics Engineering, AAME 2024

The proceedings contain 117 papers. The topics discussed include: deformation control and weight optimization of civil aircraft nose structures;aerodynamic shape optimization of aft propulsive fuselage concept using an internal/external integration model;research on virtual flight test method for minimum unstick speed of civil aircraft;adaptive remaining useful life prediction method for aircraft engines under variable operational conditions based on multi-channel transformer;design and implementation of 3D printed twin-propeller aeronautical model;Impact analysis of design parameters and flow mechanism of ducted fan;comparative study on the aerodynamic characteristics of various wingtips for soaring drones;research on the control technology of aircraft landing gear buffer variable stroke;overall parameter design method and sensitivity analysis for solar aircraft;research on the design laws of stealth structures for typical components of aircraft leading edges;and enhancing spool valve sealing performance with an annular groove.

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