M. Sabati, A. Sedaghat, S. A. A. Oloomi, Leila Borvayeh, F. Sabri, Mahdi Ashtian Malayer, W. Zafar, H. Salem, Fadi Alkhatib
{"title":"Temporal and Spectral Analysis on the Performance of Solar Windows Film in Office Buildings in a Hot-Dry Climate","authors":"M. Sabati, A. Sedaghat, S. A. A. Oloomi, Leila Borvayeh, F. Sabri, Mahdi Ashtian Malayer, W. Zafar, H. Salem, Fadi Alkhatib","doi":"10.1109/EVER48776.2020.9243023","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9243023","url":null,"abstract":"This study examines the performance of solar window films installed on double-glazed windows of typical offices in actual working conditions in a hot and dry climate. Passive thin films stuck interiorly on double-glazed windows were used to affect various solaroptical impacts including energy saving, UV reduction, and increased thermal comfort. Real-time measurements of environmental parameters, including temperature, humidity, and luminous, were performed continuously in 5-minute intervals over three summer months of June, July, and August 2019 in Kuwait and data were stored automatically through a WiFi system. Arduino-type microprocessors and various temperature, humidity, Lux, and UV sensors were assembled and programmed to transfer and store data in real-time. Temporal and spectral analyses were conducted to compare the effects of the window films on these environmental parameters. It is evident that windows film has good potential to decrease interior temperature and its variability, to save energy and reduce CO2 footprints, to save water by preserving interior humidity to level of human comfort, to restrict the solar UV rays to minimum level, and to reduce visual impacts of high solar luminous in hot-dry climates. The benefits and drawbacks of the selected windows film are discussed.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128378595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Towards the definition of a sustainable business model for last mile logistics: case study of city of Trento","authors":"M. Mortara, Diego Ponte, A. Zubaryeva","doi":"10.1109/EVER48776.2020.9242547","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9242547","url":null,"abstract":"This work outlines the methodology used to analyse the economic, social, environmental and technical sustainability of an urban distribution centre (UDC) to manage last mile deliveries directed towards the historic centre of a city by using only electric vehicles. Achieving this goal requires a design of novel business model, based on evidence found in cases of real applications. Final aim of research is part of need to determine tools that can be replicated to measure and compare impacts of initiatives undertaken in different contexts. An attempt was made to offer a solution to this hurdle by creating a model capable of enclosing main aspects of interest for service, while at same time standardizing results for each case studied.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130643428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Florian Bierwirth, J. Froeschl, J. Gebert, H. Herzog
{"title":"System Analysis of Vehicle Low-Voltage Energy Paths as Initial Step for a Predictive Diagnosis","authors":"Florian Bierwirth, J. Froeschl, J. Gebert, H. Herzog","doi":"10.1109/EVER48776.2020.9243135","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9243135","url":null,"abstract":"As defined in ISO 26262, a diagnosis offers a cost-effective way to increase vehicle energy systems’ safety requirements. So far, alternative hardware and thus cost-intensive security concepts have been applied. In this paper, a new approach is presented to evaluate and methodically compare the components of vehicles’ low-voltage energy paths in terms of a sensitivity analysis. With the proposed method, these components can be evaluated, on the one hand, regarding their susceptibility to degradations, and on the other, the installation area-specific influences and effects. From the derived effect structure and effect matrix, the required target variable, and a path’s most vulnerable component can be identified. These steps are a prerequisite for assessing a path’s \"state of health\" and for predicting the remaining useful life.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"26 Pt 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128786657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Leka Alain Innocent, M. Doumbia, J. Song-Manguelle
{"title":"Onshore Control Strategy of DC-AC Multilevel Modular Converter of the Offshore DC Voltage Collection","authors":"Leka Alain Innocent, M. Doumbia, J. Song-Manguelle","doi":"10.1109/EVER48776.2020.9243028","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9243028","url":null,"abstract":"This paper uses the advanced control strategy on voltage source Modular Multi-level Converters (MMC). A Direct Current (DC) collection through a serial connection of the conversion substations supplied by Offshore wind farms makes it possible to form (MTDC) multi-terminal DC mesh network aimed at supplying an Onshore load. The MTDC system made up of MMC comprises three terminals respectively connecting an alternating voltage collection coming from three offshore wind farms and an alternative terminal connecting an onshore load. The Voltage Margin command is used to control the Offshore substations and the voltage droop command is applied to the control of the onshore substation. A command distributed on the MTDC grid is thus produced in this system. A distinction made between Point-to-Point transmission and Multiterminal allows to orient the real choice of MMC converters integrated in the DC transmission. The model simulation is carried out with the MATLAB-Simulink software. Numerous published works have demonstrated these control strategies to ensure better stability of the MTDC network. The MMC models on the Offshore station side have 37 levels and on the Onshore side have 51 levels.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124286674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. S. Artal-Sevil, Iván Sanz-Gorrachategui, P. Pastor-Flores, C. Bernal-Ruíz, F. Pérez-Cebolla, A. Bono-Nuez
{"title":"New Smart Control based on MPPT/MEPT Algorithm for Hybrid Fuel Cell Power System","authors":"J. S. Artal-Sevil, Iván Sanz-Gorrachategui, P. Pastor-Flores, C. Bernal-Ruíz, F. Pérez-Cebolla, A. Bono-Nuez","doi":"10.1109/EVER48776.2020.9243139","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9243139","url":null,"abstract":"In this paper, a new algorithm for enhanced management of a hybrid fuel-cell system is proposed. The purpose of this algorithm, which has been called Maximum Efficiency Point Tracking algorithm (MEPT-algorithm), is to polarize the fuel cell in an optimum point maximizing its efficiency and minimizing the fuel consumption. The goal is to guarantee fast power transients in the load while the fuel cell is kept in the optimum point by the hybridization of a fuel cell with an energy storage system (ESS) based on ultracapacitors. The hybrid power system model has been simulated in Matlab/Simulink applying the proposed algorithm and the classical Maximum Power Point Tracking (MPPT) algorithm. The combined control in DC/DC converters allows us to modify the Fuel Cell’s operating point, as well as its MPPT or MEPT algorithm. A detailed analysis of the results verifies the benefits of the use of MEPT vs only the MPPT. Typical figures of merit and conclusions are also presented in this paper.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122858099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimal Business Case for Provision of Grid Services through EVs with V2G Capabilities","authors":"Pragadeesh Meenakumar, M. Aunedi, G. Strbac","doi":"10.1109/EVER48776.2020.9242538","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9242538","url":null,"abstract":"Vehicle-to-grid (V2G) technology facilitates bidirectional energy transfer to and from electric vehicles (EV), utilizing the EV batteries as distributed mobile storage assets and offering additional flexibility at the grid level. Nevertheless, to maximize the potential for providing flexibility through V2G services, it is likely that some form of EV asset aggregation will be required given the highly distributed nature of EV as small-scale flexible resources. In this context, the research presented in this paper aims to develop a linear optimization model to maximize the revenues obtained by a V2G EV aggregator through the provision of grid services in the UK electricity market. The paper also focuses on identifying the commercial value of V2G, based on the developed revenue maximization model, as function of various use cases such as commercial fleet vehicles or workplace charging, while also exploring the sensitivity of potential revenues with respect to various parameters associated with the driving profiles, including simulated usage patterns and modelling of various price parameters in the day-ahead and real-time electricity markets.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":" 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132123370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Erick Giraldo-Pérez, G. Gaviria, E. Betancur, G. Osorio-Gómez, R. Mejía–Gutiérrez
{"title":"Influence of energy consumption on battery sizing of electric fluvial vessels: a Colombian Case Study","authors":"Erick Giraldo-Pérez, G. Gaviria, E. Betancur, G. Osorio-Gómez, R. Mejía–Gutiérrez","doi":"10.1109/EVER48776.2020.9243037","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9243037","url":null,"abstract":"Electric vessels represent a sustainable solution for fluvial mobility. However, their energy demand is higher compared to terrestrial vehicles, so that, increasing the hydrodynamic efficiency is mandatory. The purpose of this research is to estimate the hydrodynamic drag and battery capacity of an electric boat for passenger transport with the same performance of the boats with internal combustion engines currently operating in the Magdalena river, in Colombia. This estimation of hydrodynamic efficiency is carried out through both Computational Fluid Dynamics (CFD) simulations and statistical analysis for planing vessels. The results show the energy consumption estimation of the boat for a defined route, through different approaches, leading to the battery sizing. As the battery affects the total weight of the boat and the resistance is affected in turn, an iterative process is proposed. As the battery sizing through statistical methods shows uncertainties due to the variation of the results, the iterative method promises to be a practical and fast way to estimate the battery size for an electric boat in early design stages.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131142981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Dual Three-Phase Induction Machines under Post-Fault Operating Conditions","authors":"R. Steckel, A. Kremser, H. Herzog","doi":"10.1109/EVER48776.2020.9243140","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9243140","url":null,"abstract":"An Analysis of a dual three-phase induction machine under open-circuit operating conditions is presented in this paper. A fast analytical method of determining the harmonic content of the MMF distribution in the air gap is derived by means of a symmetrical component analysis of the stator winding MMF. The method summarizes the harmonics into groups of infinite Fourier series, which simplifies the analysis especially in post-fault operation. Furthermore, the post-fault load capability for constant loads was determined with phase currents exceeding the rated value. A steady-state thermal model was used to predict the current-ratings for post-fault operation. Experimental tests were carried out for the purposes of verification.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127612979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Campagna, A. Tommaso, V. Castiglia, F. Pellitteri, R. Miceli, G. Schettino
{"title":"Hydrogen Supplied Wireless Charging System for Electric Vehicles","authors":"N. Campagna, A. Tommaso, V. Castiglia, F. Pellitteri, R. Miceli, G. Schettino","doi":"10.1109/EVER48776.2020.9242925","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9242925","url":null,"abstract":"The aim of this work is the experimental characterization of a Wireless Charging System based on IPT (Inductive Power Transfer) supplied by a PEMFC (Proton Exchange Membrane Fuel Cell) in order to verify the possibility of its installation in not electrified areas. A hydrogen-based supply system is designed and assembled with the purpose of having an EV (electrical vehicle) charging station not connected to the main power grid. An efficiency analysis of the wireless transmission system is carried out taking into account external parameters such as distance and misalignment between the transmitter coil and the receiver coil, verifying the integration potentialities of both IPT and fuel cell for the automotive field.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127293056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Doubly-Fed Variable Flux Reluctance Machine with Integrated Stator Field and Armature Winding and Rotor Armature Winding","authors":"Li Fang, Lijian Wu, Jiabei Zhu","doi":"10.1109/EVER48776.2020.9242999","DOIUrl":"https://doi.org/10.1109/EVER48776.2020.9242999","url":null,"abstract":"This paper presents a novel doubly-fed variable flux reluctance machine (DF-VFRM) with dual stator and rotor armature windings. The stator armature and dc field winding are integrated to reduce the winding resistance. Operation principle of DF-VFRM is introduced based on a 6-stator-pole and 5-rotor-pole (6s/5r) machine topology. In addition, its electromagnetic performances including inductance, back-EMF, cogging torque, electromagnetic torque and unbalanced magnetic force (UMF) are analysed by finite element (FE) method. Besides, three other electrically excited doubly-salient structure machines including conventional VFRM, wound field synchronous machines (WFSM) with 6s/4r and 12s/4r, viz. fractional-slot and integral-slot machines are optimized and compared with the novel DF-VFRM. The results show that the novel DF-VFRM has 30.2%, 30.2% and 17.7% higher average torque than VFRM, 6s/4r and 12s/4r WFSM, respectively. Besides, the novel DF-VFRM has a good fault-tolerance capability due to its independent dual armature windings.","PeriodicalId":166751,"journal":{"name":"2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129083069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}