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Robust cooperation of connected vehicle systems with eigenvalue-bounded interaction topologies in the

Keqiang LI, Feng GAO, Shengbo Eben LI, Yang ZHENG, Hongbo GAO

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 354-367 doi: 10.1007/s11465-018-0486-x

Abstract:

This study presents a distributed H-infinity control method for uncertain platoons with dimensionally and structurally unknown interaction topologies provided that the associated topological eigenvalues are bounded by a predesigned range. With an inverse model to compensate for nonlinear powertrain dynamics, vehicles in a platoon are modeled by third-order uncertain systems with bounded disturbances. On the basis of the eigenvalue decomposition of topological matrices, we convert the platoon system to a norm-bounded uncertain part and a diagonally structured certain part by applying linear transformation. We then use a common Lyapunov method to design a distributed H-infinity controller. Numerically, two linear matrix inequalities corresponding to the minimum and maximum eigenvalues should be solved. The resulting controller can tolerate interaction topologies with eigenvalues located in a certain range. The proposed method can also ensure robustness performance and disturbance attenuation ability for the closed-loop platoon system. Hardware-in-the-loop tests are performed to validate the effectiveness of our method.

Keywords： automated vehicles     platoon     distributed control     robustness    

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Strategic Analysis on Establishing an Automobile Power in China Based on Intelligent & Connected Vehicles

Bian Mingyuan and Li Keqiang

Strategic Study of CAE 2018, Volume 20, Issue 1,   Pages 52-58 doi: 10.15302/J-SSCAE-2018.01.008

Abstract:

The intelligent and connected vehicle (ICV), a trendy and promising industry form, has evolved with

Keywords： intelligent & connected vehicle (ICV)     automobile power     industrial transformation and upgrading     top-level    

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Connected Vehicle Based Traffic Signal Coordination Article

Wan Li, Xuegang Ban

Engineering 2020, Volume 6, Issue 12,   Pages 1463-1472 doi: 10.1016/j.eng.2020.10.009

Abstract:

This study presents a connected vehicles (CVs)-based traffic signal optimization framework for a coordinatedoffsets are solved together by minimizing fuel consumption and travel time considering an individual vehicleWhen considering varies vehicle types under high demand levels, the proposed two-level model reduced

Keywords： Connected vehicles     Traffic signal coordination     Dynamic programming     Two-level optimization     Mixed-integer    

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Large-Scale Vehicle Platooning: Advances and Challenges in Scheduling and Planning Techniques Review

Jing Hou, Guang Chen, Jin Huang, Yingjun Qiao, Lu Xiong, Fuxi Wen, Alois Knoll, Changjun Jiang

Engineering 2023, Volume 28, Issue 9,   Pages 26-48 doi: 10.1016/j.eng.2023.01.012

Abstract:

Through vehicle-to-vehicle (V2V) communication, autonomizinga vehicle platoon can significantly reduce the distance between vehicles, thereby reducing air resistanceThe gradual maturation of platoon control technology is enabling vehicle platoons to achieve basic drivingfunctions, thereby permitting large-scale vehicle platoon scheduling and planning, which is essentialScheduling and planning are required in many aspects of vehicle platoon operation; here, we outline the

Keywords： Autonomous vehicle platoon     Autonomous driving     Connected and automated vehicles     Scheduling and planning    

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Modeling and control of photovoltaic energy conversion connected to the grid

Rebei NAJET, Ben Ghanem BELGACEM, Hasnaoui OTHMAN

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 35-46 doi: 10.1007/s11708-012-0169-y

Abstract: This paper presents modeling and control of a photovoltaic generator (PVG) connected to the grid.

Keywords： photovoltaic generator (PVG)     maximum power point tracker     grid-connected     static converters    

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Generating capacity adequacy evaluation of large-scale, grid-connected photovoltaic systems

Amir AHADI,Seyed Mohsen MIRYOUSEFI AVAL,Hosein HAYATI

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 308-318 doi: 10.1007/s11708-016-0415-9

Abstract: Large-scale, grid-connected photovoltaic systems have become an essential part of modern electric powerapproach based on the Markov method has been proposed to investigate the effects of large-scale, grid-connectedprocedure of the proposed frame work and evaluate the reliability benefits of using large-scale, grid-connected

Keywords： adequacy assessment     Markov method     large-scale grid-connected photovoltaic(PV) systems     long-term operation    

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THD reduction with reactive power compensation for fuzzy logic DVR based solar PV grid connected system

Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 464-479 doi: 10.1007/s11708-014-0307-9

Abstract: In this paper, a new control approach for the 200 kW solar photovoltaic grid connected system with perturb

Keywords： fuzzy logic     maximum power point tracking (MPPT)     proportional integral (PI)     control     voltage restorer    

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Autonomous Driving in the iCity—HD Maps as a Key Challenge of the Automotive Industry Perspective

Heiko G. Seif, Xiaolong Hu

Engineering 2016, Volume 2, Issue 2,   Pages 159-162 doi: 10.1016/J.ENG.2016.02.010

Abstract:

This article provides in-depth insights into the necessary technologies for automated driving in future cities. State of science is reflected from different perspectives such as in-car computing and data management, road side infrastructure, and cloud solutions. Especially the challenges for the application of HD maps as core technology for automated driving are depicted in this article.

Keywords： Autonomous driving     Traffic infrastructure     iCity     Car-to-X communication     Connected vehicle     HD maps    

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Design and experimental validation of event-triggered multi-vehicle cooperation in conflicting scenarios Research Article

Zhanyi HU, Yingjun QIAO, Xingyu LI, Jin HUANG, Yifan JIA, Zhihua ZHONG

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 11,   Pages 1700-1713 doi: 10.1631/FITEE.2100504

Abstract: Vehicle-to-vehicle communication is an essential ingredient in virtual platoon systems.experimental results verify that the proposed method can greatly reduce data transmission while creating multi-vehicle

Keywords： Connected and automated vehicles     Event-triggered control     Nonlinear and uncertain dynamics     Conflicting    

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Phosphorus-doped Ni–Co sulfides connected by carbon nanotubes for flexible hybrid supercapacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 491-503 doi: 10.1007/s11705-022-2257-9

Abstract: As promising electrode materials for supercapacitors, nickel-cobalt bimetallic sulfides render the advantages of abundant redox reactions and inherently high conductivity. However, in general, unsatisfactory performance of low specific capacity, low rate capability, and fast capacity loss exist in Ni–Co sulfide electrodes. Herein, we rationally regulate phosphorus-doped nickel–cobalt sulfides (P-NCS) to enhance the electrochemical performance by gas–solid phosphorization. Moreover, carbon nanotubes (CNTs) as conductive additives are added to improve the cycle stability and conductivity and form the composite P-NCS/C/CNT. According to density functional theory, more electrons near the Fermi surface of P-NCS are demonstrated notionally than those of simple CoNi2S4. Electrochemical results manifest that P-NCS/C/CNT exhibits superior electrochemical performance, e.g., high specific capacity (932.0 C∙g‒1 at 1 A∙g‒1), remarkable rate capability (capacity retention ratio of 69.1% at 20 A∙g‒1), and lower charge transfer resistance. More importantly, the flexible hybrid asymmetric supercapacitor is assembled using P-NCS/C/CNT and activated carbon, which renders an energy density of 34.875 W·h∙kg‒1 at a power density of 375 W∙kg‒1. These results show that as-prepared P-NCS/C/CNT demonstrates incredible possibility as a battery-type electrode for high-performance supercapacitors.

Keywords： cobalt nickel sulfide     phosphorus-doping     hybrid supercapacitor     carbon nanotube     density functional theory    

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The study on investment and financing of non-grid-connected wind power system

Yang Xu and Liu Yong

Strategic Study of CAE 2015, Volume 17, Issue 3,   Pages 75-78

Abstract:

In this paper， the ways of investment and financing of non-grid-connected wind power system was studiedSecondly， the development of non-grid-connected wind power system was introduced.Then the available investment and financing methods on non-grid-connected wind power system was analyzedFinally the article also mentioned the problems faced of non-grid-connected wind power system and gave

Keywords： non-grid-connected wind power；investment & financing of non-grid-connected wind power industry；government    

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Hybrid optimization algorithm for modeling and management of micro grid connected system

Kallol ROY,Kamal Krishna MANDAL

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 305-314 doi: 10.1007/s11708-014-0308-8

Abstract: In this paper, a hybrid optimization algorithm is proposed for modeling and managing the micro grid (MG) system. The management of distributed energy sources with MG is a multi-objective problem which consists of wind turbine (WT), photovoltaic (PV) array, fuel cell (FC), micro turbine (MT) and diesel generator (DG). Because, perfect economic model of energy source of the MG units are needed to describe the operating cost of the output power generated, the objective of the hybrid model is to minimize the fuel cost of the MG sources such as FC, MT and DG. The problem formulation takes into consideration the optimal configuration of the MG at a minimum fuel cost, operation and maintenance costs as well as emissions reduction. Here, the hybrid algorithm is obtained as artificial bee colony (ABC) algorithm, which is used in two stages. The first stage of the ABC gets the optimal MG configuration at a minimum fuel cost for the required load demand. From the minimized fuel cost functions, the operation and maintenance cost as well as the emission is reduced using the second stage of the ABC. The proposed method is implemented in the Matlab/Simulink platform and its effectiveness is analyzed by comparing with existing techniques. The comparison demonstrates the superiority of the proposed approach and confirms its potential to solve the problem.

Keywords： micro grid (MG)     multi-objective function     artificial bee colony (ABC)     fuel cost     operation and maintenance cost    

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Safety assessment for buried drainage box culvert under influence of underground connected aisle blasting

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 191-204 doi: 10.1007/s11709-022-0906-1

Abstract: field blasting and vibration tests were performed on the blasting engineering of the Wuhan Metro Line 8 connected

Keywords： drainage box culvert     underpass blasting     dynamic response     numerical simulation     safety assessment    

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Robust control based on the Lyapunov theory of a grid-connected doubly fed induction generator

Ridha CHEIKH, Arezki MENACER, Said DRID

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 191-196 doi: 10.1007/s11708-013-0245-y

Abstract: This paper discusses the robust control of a grid-connected doubly-fed induction generator (DFIG) controlled

Keywords： doubly fed induction generator (DFIG)     vector control     Lyapunov function     power factor unity     active power     reactive power    

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Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 400-409 doi: 10.1007/s11708-017-0459-5

Abstract: The controller proposed has been implemented on the PV system connected with the weak grid using the

Keywords： PV system     grid interface     feedback linearization     inverter     LCL filter    

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Title Author Date Type Operation

Robust cooperation of connected vehicle systems with eigenvalue-bounded interaction topologies in the

Keqiang LI, Feng GAO, Shengbo Eben LI, Yang ZHENG, Hongbo GAO

Journal Article

Strategic Analysis on Establishing an Automobile Power in China Based on Intelligent & Connected Vehicles

Bian Mingyuan and Li Keqiang

Journal Article

Connected Vehicle Based Traffic Signal Coordination

Wan Li, Xuegang Ban

Journal Article

Large-Scale Vehicle Platooning: Advances and Challenges in Scheduling and Planning Techniques

Jing Hou, Guang Chen, Jin Huang, Yingjun Qiao, Lu Xiong, Fuxi Wen, Alois Knoll, Changjun Jiang

Journal Article

Modeling and control of photovoltaic energy conversion connected to the grid

Rebei NAJET, Ben Ghanem BELGACEM, Hasnaoui OTHMAN

Journal Article

Generating capacity adequacy evaluation of large-scale, grid-connected photovoltaic systems

Amir AHADI,Seyed Mohsen MIRYOUSEFI AVAL,Hosein HAYATI

Journal Article

THD reduction with reactive power compensation for fuzzy logic DVR based solar PV grid connected system

Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR

Journal Article

Autonomous Driving in the iCity—HD Maps as a Key Challenge of the Automotive Industry

Heiko G. Seif, Xiaolong Hu

Journal Article

Design and experimental validation of event-triggered multi-vehicle cooperation in conflicting scenarios

Zhanyi HU, Yingjun QIAO, Xingyu LI, Jin HUANG, Yifan JIA, Zhihua ZHONG

Journal Article

Phosphorus-doped Ni–Co sulfides connected by carbon nanotubes for flexible hybrid supercapacitor

Journal Article

The study on investment and financing of non-grid-connected wind power system

Yang Xu and Liu Yong

Journal Article

Hybrid optimization algorithm for modeling and management of micro grid connected system

Kallol ROY,Kamal Krishna MANDAL

Journal Article

Safety assessment for buried drainage box culvert under influence of underground connected aisle blasting

Journal Article

Robust control based on the Lyapunov theory of a grid-connected doubly fed induction generator

Ridha CHEIKH, Arezki MENACER, Said DRID

Journal Article

Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Journal Article