IET Electrical Systems in Transportation最新文献_第10页

Electric vehicle charging stations’ location in urban transportation networks: A heuristic methodology 电动汽车充电站在城市交通网络中的定位：一种启发式方法

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2021-03-03 DOI: 10.1049/els2.12011

Sebastian Torres Franco, Ivan Camilo Durán Tovar, Mónica Marcela Suárez Pradilla, Agustin Marulanda Guerra

{"title":"Electric vehicle charging stations’ location in urban transportation networks: A heuristic methodology","authors":"Sebastian Torres Franco, Ivan Camilo Durán Tovar, Mónica Marcela Suárez Pradilla, Agustin Marulanda Guerra","doi":"10.1049/els2.12011","DOIUrl":"10.1049/els2.12011","url":null,"abstract":"The lack of public charging infrastructure has been one of the main barriers preventing the technological transition from traditional vehicles to electric vehicles. To accelerate this technological transition, it is necessary to elaborate optimal charging station location strategies to increase the user confidence, and maintain investment costs within acceptable levels. However, the existing works for this purpose are often based on multipath considerations or multi-objective functions, that result in taxing computational efforts for urban transportation networks. This article presents a heuristic methodology for urban transportation networks, that considers the deployment of the charging stations for coverage purposes, and the fulfilment of user preferences and constraints as two separated processes. In this methodology, a Reallocation Algorithm is formulated to prioritize the selection of Locations of Interest, and to reduce the number of stations with overlapping covering areas. The methodology results are compared to those drawn from a Greedy Algorithm based on a multipath consideration, in an extensive metropolitan transportation network. The results show that the proposed methodology significantly reduce the computational time required for solving the location problem, and furthermore, allows for similar results to those obtained when considering k = 2 and k = 3 deviation paths.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2021-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2.12011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42678142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Model predictive control for on–off charging of electrical vehicles in smart grids 智能电网中电动汽车通断充电的模型预测控制

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2021-03-03 DOI: 10.1049/els2.12010

Ye Shi, Hoang D. Tuan, Andrey V. Savkin, H. Vincent Poor

{"title":"Model predictive control for on–off charging of electrical vehicles in smart grids","authors":"Ye Shi, Hoang D. Tuan, Andrey V. Savkin, H. Vincent Poor","doi":"10.1049/els2.12010","DOIUrl":"10.1049/els2.12010","url":null,"abstract":"Over the next decade, a massive number of plug-in electric vehicles (PEVs) will need to be integrated into current power grids. This is likely to give rise to unmanageable fluctuations in power demand and unacceptable deviations in voltage. These negative impacts are difficult to mitigate because PEVs connect and disconnect from the grid randomly and each type of PEVs has different charging profiles. This paper presents a solution to these problems that involves coordination of power grid control and PEV charging. The proposed strategy minimises the overall costs of charging and power generation in meeting future increases in PEV charging demand and the operational constraints of the power grid. The solution is based on an on–off PEV charging strategy that is easy and convenient to implement online. The joint coordination problem is formulated by a mixed integer non-linear programming (MINP) with binary charging and continuous voltage variables and is solved by a highly novel computational algorithm. Its online implementation is based on a new model predictive control method that is free from prior assumptions about PEVs' arrival and charging information. Comprehensive simulations are provided to demonstrate the efficiency and practicality of the proposed methods.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2021-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2.12010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46511969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

SRM power density improvement utilising rotor conducting screens and DC-link voltage boosting for EV applications 利用转子导电屏和用于电动汽车应用的直流链路升压提高SRM功率密度

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2021-02-22 DOI: 10.1049/els2.12012

Aly A. Abdel-Aziz, Khaled H. Ahmed, Ahmed M. Massoud, Barry W. Williams

{"title":"SRM power density improvement utilising rotor conducting screens and DC-link voltage boosting for EV applications","authors":"Aly A. Abdel-Aziz, Khaled H. Ahmed, Ahmed M. Massoud, Barry W. Williams","doi":"10.1049/els2.12012","DOIUrl":"10.1049/els2.12012","url":null,"abstract":"The power density enhancement of a four-phase switched reluctance motor using rotor conducting screens and DC-link voltage boosting for electric vehicle applications is studied. The effect of conducting screen thickness and material electrical conductivity on current rise time, developed torque, and output power is studied. Different screen shapes are compared that elicit the optimum screen design by formulating a multi-objective optimisation problem based on maximising the developed torque and efficiency and minimising added material weight. A double arm common switch converter with a DC-link voltage-boosting capacitors is deployed. The boosted voltage provided by the capacitors aids the winding current to rapidly build-up; thus, increasing the motor base speed, whence power rating. Finite element analysis results confirm the SRM drive's effectiveness in increasing the motor base speed and improving the torque range; hence make the power capability of SRMs to be competitive with an equivalent volume permanent magnet synchronous motor.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2021-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2.12012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49465220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Investigation of triple quadrature pad for wireless power transfer system of electric vehicles 用于电动汽车无线电力传输系统的三正交焊盘的研究

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2021-02-16 DOI: 10.1049/els2.12008

Bita Esmaeili Jamakani, Ali Mosallanejad, Ebrahim Afjei, Alireza Lahooti Eshkevari

{"title":"Investigation of triple quadrature pad for wireless power transfer system of electric vehicles","authors":"Bita Esmaeili Jamakani, Ali Mosallanejad, Ebrahim Afjei, Alireza Lahooti Eshkevari","doi":"10.1049/els2.12008","DOIUrl":"10.1049/els2.12008","url":null,"abstract":"Inductive Power Transfer (IPT) system is an appealing approach among researchers as well as industrial manufacturers of electric vehicle (EV) charging systems. IPT can be used to transfer power through the air gap by generating a high-frequency current in the transmitter pad and inducing current magnetically in the receiver pad. A triple quadrature pad (TQP) has been proposed to enhance transferred power in larger misalignments and various air gaps. This pad excels in its previous three-coil structures by implementing a fewer number of inverters and lower dimensions compared to other similar structures. All these features result in a higher coupling coefficient in low misalignments and higher tolerance to misalignment in horizontal displacements. A laboratory-scale prototype has been designed and built for 26 kHz switching frequency and 150 mm air gap in order to deliver maximum power in different displacements. Simulations have been done by the finite element analysis (FEA) tool of ANSYS Maxwell. The prototype has been built to validate the simulation results.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2021-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2.12008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43920985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Experimental characterisation of active and non-active harmonic power flow of AC rolling stock and interaction with the supply network 交流机车有功和无功谐波潮流的实验表征及其与供电网络的相互作用

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2021-01-29 DOI: 10.1049/els2.12009

Andrea Mariscotti

引用次数: 9

Revampment of surface permanent magnet synchronous motor design for ameliorated torque profile in e-mobility applications 改进表面永磁同步电机设计，以改善电子移动应用中的转矩轮廓

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2020-12-24 DOI: 10.1049/els2.12007

Anshul K. Mishra, Bharat S. Rajpurohit, Rajeev Kumar

{"title":"Revampment of surface permanent magnet synchronous motor design for ameliorated torque profile in e-mobility applications","authors":"Anshul K. Mishra, Bharat S. Rajpurohit, Rajeev Kumar","doi":"10.1049/els2.12007","DOIUrl":"10.1049/els2.12007","url":null,"abstract":"High-frequency audible noise and high-frequency vibrations (HFVs) in electrical vehicles are primarily caused by vibrations and ripples generated in the traction motor. The appositeness of permanent magnet synchronous motors (PMSMs) has been boosting in traction applications due to their high energy density, compact size and high torque to weight ratio. A novel and step-by-step design of medium power, high speed, surface PMSM, suitable for e-bus or e-truck applications, with suppressed torque ripples, is presented. Initially, a conventional machine design approach has been used to design 100 kW PMSM. In the next step, the design has been ameliorated by making it a fractional slot winding machine to suppress the winding harmonics. Finally, the effect of the permanent magnet embrace size on the torque ripple has been investigated. A nonlinear relationship between the torque ripple and PMSM magnetic embrace has been developed. The developed relationship has been validated in the finite element model of the machine. Gradient-based nonlinear sequential programming has been used to find out the optimum magnetic embrace for the minimised torque ripple. The effectiveness of the optimised design has been revalidated in the FE software. The step-by-step design process described here can reduce the torque ripple by 85% of optimised design compared to the conventionally designed PMSM.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2.12007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48082092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A decentralized power dispatch strategy in an electric vehicle charging station 电动汽车充电站分散式电力调度策略

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2020-12-19 DOI: 10.1049/els2.12002

He Yin, Amro Alsabbagh, Chengbin Ma

{"title":"A decentralized power dispatch strategy in an electric vehicle charging station","authors":"He Yin, Amro Alsabbagh, Chengbin Ma","doi":"10.1049/els2.12002","DOIUrl":"10.1049/els2.12002","url":null,"abstract":"In this study, a decentralized power dispatch in a charging station serving electric vehicles (EVs) is discussed. The power dispatch problem is solved through a Stackelberg game in real time. In this game, the leader is the EV charging station (EVCS) while the followers are EVs. The preferences of the EVCS are designed as being self-sufficient, providing charging services to the EVs, and maintaining the energy level of the battery energy storage system (BESS), which are described through different utility functions. In addition, the preferences of followers are to maximize their EV charging powers. The learning algorithm utilizes the consensus network to reach the generalized Stackelberg equilibrium as the power dispatch among EVs in an iterative decentralized manner. Both the static and dynamic case studies in the simulation verify the successful implementation of the proposed strategy, the flexibility to uncertainties and the re-configurability to the number of EVs. It also has an excellent performance compared with the centralized benchmark strategy with criteria, that is, the average EV charging time, the number of charge and discharge rate of the BESS and energy exchange to the grid. Finally, a down-scaled experiment implementation is set up to validate the functionality and the effectiveness of the game theory-based strategy.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2020-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2.12002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48530026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Comparison of different models for energy management strategy design of a parallel hybrid electric vehicle: Impact of the rotating masses 并联混合动力汽车能量管理策略设计的不同模型比较:旋转质量的影响

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2020-12-15 DOI: 10.1049/els2.12003

Abdoulaye Pam, Alain Bouscayrol, Philippe Fiani, Fabien Faval

{"title":"Comparison of different models for energy management strategy design of a parallel hybrid electric vehicle: Impact of the rotating masses","authors":"Abdoulaye Pam, Alain Bouscayrol, Philippe Fiani, Fabien Faval","doi":"10.1049/els2.12003","DOIUrl":"10.1049/els2.12003","url":null,"abstract":"Simulation is a key step during the development of energy management strategies (EMSs) for hybrid electric vehicles (HEVs). Moreover, optimal algorithms such as dynamic programming (DP) are used off-line to define a benchmark for real-time EMSs. However, several assumptions are made on the model to determine the appropriate energy management of an HEV. The rotating masses of the mechanical transmission, which are related to the vehicle dynamics, are often neglected for EMS development. In this study, different models for the EMS design of a parallel HEV are compared. An EMS based on the dynamical model that considers the rotating masses is used as a benchmark. A static model considering only the static mass of the vehicle is also studied. Intermediate models, such as an average gear model and an average mass model, are also considered. Simulations are performed using different driving cycles. The comparisons are based on the fuel consumption and also the computation time resulting from EMSs derived from the different models. Globally, the static model leads to an average error up to 20% on the energy consumption in comparison with the dynamical model. The average mass model leads to an error less than 1%. For real-time simulations, the average mass model allows to reduce the computation time by a factor of 10 in comparison with the dynamical model.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2.12003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43207162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Field test of a silicon carbide metro propulsion system with reduced losses and acoustic noise 降低损耗和噪声的碳化硅地铁推进系统的现场测试

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2020-12-15 DOI: 10.1049/els2.12004

Martin Lindahl, Torbjörn Trostén, Daniel Jansson, Mikael H Johansson, Erik Velander, Anders Blomberg, Hans-Peter Nee

引用次数: 1

Condition monitoring of a surface mounted permanent magnet-type brushless direct current motor using remodelling of rotor magnetic field and stator winding inductance 基于转子磁场和定子绕组电感重构的表面安装永磁体型无刷直流电机的状态监测

IF 2.3 4区工程技术

IET Electrical Systems in Transportation Pub Date : 2020-12-09 DOI: 10.1049/els2.12006

Adil Usman, Bharat Singh Rajpurohit

{"title":"Condition monitoring of a surface mounted permanent magnet-type brushless direct current motor using remodelling of rotor magnetic field and stator winding inductance","authors":"Adil Usman, Bharat Singh Rajpurohit","doi":"10.1049/els2.12006","DOIUrl":"10.1049/els2.12006","url":null,"abstract":"The high-performance characteristics of brushless direct current (BLDC) motor has made them indispensable for electric vehicle (EV) applications. The physical replacement of rotor windings with the permanent magnets on the rotor, makes the BLDC motor more compact, generating high torque-power density. However, the continuous operation of BLDC motors in EVs make them vulnerable to faults. Develops the surface mounted permanent magnet-type BLDC motor under healthy and fault conditions using remodelling of stator winding inductances and rotor magnetic fields of a machine. The stator winding inductance (LS) is modelled using winding function theory depending on the physical distribution of a winding, while the rotor magnetic field (Bg) is modelled through magnetic equivalent circuit based approach, respectively. Both the machine quantities under healthy operating conditions are estimated based on the motor geometry and validated numerically using finite element based methods. The experimental investigation validates the results obtained through given modelling techniques. The experimental and numerically obtained data of LS and Bg are then remodelled in a BLDC motor, to investigate the hybrid performance of a machine, useful in diagnosis of faults. The results obtained are further used to classify the faults and estimate its severity.","PeriodicalId":48518,"journal":{"name":"IET Electrical Systems in Transportation","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2020-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/els2.12006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46946822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2