{"title":"Sensorless direct torque control of surface permanent magnet synchronous motors with resilient extended Kalman filtering","authors":"Xin Wang, Bojian Cao, S. Alam","doi":"10.1109/ITEC.2017.7993357","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993357","url":null,"abstract":"The demand for sensorless control of surface permanent magnet synchronous motor (SPM) drives has grown tremendously over the past decade in a wide variety of industrial applications. Many different sensorless control methods have been proposed for SPM, especially the Matsui's current model-based method and the extended Kalman filter based methods have gained much attention. However, the performance of these sensorless control methods are severely worsened or may even become unstable under strong disturbances and sensing measurement failure conditions. This paper presents a novel resilient extended Kalman filter based sensorless direct torque and flux control approach of permanent magnet synchronous motor drives. The robustness against external disturbances and sensing failures can be improved by applying the proposed nonlinear estimation approach. Computer simulation studies and hardware implementation results have shown the superior performance of the proposed approach.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131649556","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}
Daniel Grünstäudl, J. Gragger, B. Plassnegger, M. Eibl, Christian Sandner, D. Andessner, M. Kocagöz
{"title":"Design and performance analysis of a 48V electric drive system for a cargo tricycle","authors":"Daniel Grünstäudl, J. Gragger, B. Plassnegger, M. Eibl, Christian Sandner, D. Andessner, M. Kocagöz","doi":"10.1109/ITEC.2017.7993330","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993330","url":null,"abstract":"This paper describes the main components of an electric drive in a novel electric cargo tricycle. The main components are a Mosfet inverter, an axial flux synchronous machine, and a Li-Ion battery package. The most important specifications and functions of the tricycle and the electric drive are explained. Particular focus is laid on the inverter design and the experimental setup that was used for the performance tests. Measurement results of lab tests and on-the-road tests are presented.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131791474","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":"Modeling discharge characteristics for predicting battery remaining life","authors":"Jide Lu, Longfei Wei, Manali Malek Pour, Yemeserach Mekonnen, A. Sarwat","doi":"10.1109/ITEC.2017.7993316","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993316","url":null,"abstract":"Due to the global energy crisis and air pollution, the demand for electric vehicles (EVs) and battery storage systems grows at a gallop. To support this growth, it is important to have an effective exploitation of electrochemical based energy storage system with a reliable battery management system (BMS). The remaining useful life (RUL) prediction and estimation of different age batteries are necessary for BMS design. Terminal voltage, current and surface temperature are three main types of data that have significant impacts on predicting the battery's RUL. In this paper, a mathematical model based on regression analysis is formulated to estimate the batterys RUL. Additionally, the corresponding relationship between discharge curve and battery's age is analyzed base on the battery's capacity variety with using time. Finally, the proposed model is validated with experiments on valve-regulated lead acid (VRLA) batteries.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130208423","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":"Direct model predictive control of five-level dual flying capacitor active neutral point clamped converters with modified sphere decoding","authors":"Zhenbin Zhang, Jochen Schenek, R. Kennel","doi":"10.1109/ITEC.2017.7993296","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993296","url":null,"abstract":"The five-level dual-flying-capacitor active-neutral-point-clamped converter (5L-DFC-ANPC) is an interesting topology, particularly for high-power photovoltaic, wind power, automotive applications etc. For such topology, direct model predictive control (DMPC), which combines the objective realizations and modulation stages into one computational process, is an attractive method. However, the computational burden to solve the so-called “mixed-integer nonlinear optimization problem” of DMPC for this 5L-DFC-ANPC topology is very high, because of the great amount of the available switch combinations, particularly for longer prediction horizons. This work applies the modified sphere decoding method for PMSM drive systems with the 5L-DFC-ANPC topology, within the DMPC concept. The computational burden reduction is validated. The current harmonic distortions are seen evidently lower at two step predictions.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123242664","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 design methodology for dual active bridge converter under wide voltage variation","authors":"V. Iyer, Srinivas Gulur, S. Bhattacharya","doi":"10.1109/ITEC.2017.7993306","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993306","url":null,"abstract":"Dual active bridge (DAB) converter is a popular topology for bidirectional on-board electric vehicle (EV) charger systems and other energy storage applications. In such systems, wide variation in the battery voltage makes design of the DAB converter non-trivial. The focus of this paper is on the optimal selection of DAB parameters when there is a wide variation in the output voltage. Different optimal strategies based on a minimal Euclidean norm approach, namely ‘minimal rms current design’, ‘minimal peak current design’ and ‘minimal power loss design’ are compared to illustrate the effect on system performance with output voltage variation. The proposed optimal design approaches are shown to be superior to a conventional design approach. A loss model for the DAB converter that can be used in the optimal design process is presented. The proposed optimal strategies are validated with experimental results using a laboratory prototype.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127529321","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":"High power inductive charging system for an electric taxi vehicle","authors":"M. Henke, Tim-Hendrik Dietrich","doi":"10.1109/ITEC.2017.7993242","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993242","url":null,"abstract":"In the city of Braunschweig five inductive charging stations for electric bus charging have been installed within an earlier research project named emil (“Elektromobilität mittels induktiver Ladung” -translated “E-Mobility using inductive charging”). Further research activities focus now on charging cars on the bus-system ground units. This paper shows the conceptual design and the required measurements to charge electric taxis on the proprietary emil charging stations. One of the main targets is the development of a system that can be applied into a variety of different vehicles, being charged on the primary charging systems of the emil busses. It is presented how to implement the high power charging system in series production electric vehicles. This means that beside electromagnetic coil design and power electronic converter design a charging procedure is emulated on the prototype vehicle control unit to operate the inductive charging process.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116645896","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":"Commissioning of a motor-generator unit","authors":"L. H. Sargent, David G. Taylor","doi":"10.1109/ITEC.2017.7993324","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993324","url":null,"abstract":"This paper describes the process of commissioning a motor-generator unit for a parallel hybrid electric vehicle. The system consists of a permanent-magnet synchronous machine, a power converter to enable torque control, and a lithium-ion battery pack. Methods used to test proper system function are discussed, along with experimental measurement results.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125811332","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}
E. Afshari, G. Moradi, Alireza Ramyar, Ramin Rahimi, B. Farhangi, S. Farhangi
{"title":"Reactive power generation for single-phase transformerless Vehicle-to-Grid inverters: A review and new solutions","authors":"E. Afshari, G. Moradi, Alireza Ramyar, Ramin Rahimi, B. Farhangi, S. Farhangi","doi":"10.1109/ITEC.2017.7993249","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993249","url":null,"abstract":"Vehicle to Grid (V2G) technology enables Battery Powered Vehicles including Electric and Plugin Hybrid Electric Vehicles as distributed Energy Storage for the smart grid. V2G inverters are advanced power converters that provide active and reactive bidirectional power flow between the grid and the onboard energy storage. A V2G power conditioner includes a high frequency isolated dc-dc converter and a two-quadrant voltage source inverter. This paper proposes application of the transformer-less inverters for V2G power conversion. Transformer-less inverters such as H5, HERIC, and FB-DCB are popular for Photovoltaic (PV) generation systems, offering high efficiency unidirectional power conversion at unity power-factor. The high efficiency and superior performance of these topologies in reducing common mode and circulating currents are beneficial for V2G application; however, the reactive power generation of these topologies has not been investigated. In this paper, the reactive power generation capability of these topologies is investigated. Traditional modulation methods are evaluated for reactive power generation. Additionally, novel modulation methods are proposed for improved operation at non-unity power factors. The advantages and disadvantages of the modulation methods for each topology are explored through MATLAB simulations.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130529785","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}
K. Stutenberg, M. C. Galassi, M. Garcia Otura, G. Trentadue, H. Scholz, M. Carriero, H. Lohse-Busch
{"title":"EU-US evaluation of range extended electric vehicle performance at varying ambient temperatures","authors":"K. Stutenberg, M. C. Galassi, M. Garcia Otura, G. Trentadue, H. Scholz, M. Carriero, H. Lohse-Busch","doi":"10.1109/ITEC.2017.7993327","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993327","url":null,"abstract":"The US DoE Argonne National Laboratory (ANL) and the EC Joint Research Centre (JRC) collaborate to promote a common EU/US approach towards global harmonization of standards for e-mobility and smart grids, with a common work plan including pre-normative research on the energy efficiency of electric vehicles (EVs). The aim of this paper is to introduce the cooperative and complementary ANL-JRC activities focusing on chassis dynamometer testing of electrified vehicles. Within this research program, financed by the budgets of the Transatlantic Interoperability Centers at ANL and JRC, an extensively instrumented 2014 BMW i3 plug-in electric vehicle equipped with a range extending engine (REX), was evaluated at both the ANL's Advanced Powertrain Research Facility (APRF), and at the JRC's Vehicle electric Laboratory (VeLA 8). Testing was conducted against EU and US legislative cycles, in addition to operation-specific cycles with the vehicle conditioned and operating at varying ambient conditions from −30°C to 50°C. Data analysis focuses on both vehicle- and component-specific energy use across these varying temperatures and power demands.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124598967","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}
Antti Lajunen, Trevor Hadden, R. Hirmiz, J. Cotton, A. Emadi
{"title":"Thermal energy storage for increasing heating performance and efficiency in electric vehicles","authors":"Antti Lajunen, Trevor Hadden, R. Hirmiz, J. Cotton, A. Emadi","doi":"10.1109/ITEC.2017.7993253","DOIUrl":"https://doi.org/10.1109/ITEC.2017.7993253","url":null,"abstract":"Battery electric vehicles suffer from significant range reduction in extreme cold weather conditions, largely due to the requirement of cabin heating and reduced battery performance. Since heating can require as much energy as the powertrain itself, improving the vehicle thermal energy management can have a substantial impact on range in cold driving conditions. In this paper, sensible and latent thermal energy storage (TES) methods are analyzed in order to improve heating performance and vehicle range in mild to cold weather conditions. To investigate the benefits of TES in electric vehicles, a model was developed in AMESim to simulate cabin heating and its transient interaction with the vehicle's energy systems during a given drive cycle. A thermal energy storage system was developed in the powertrain coolant loop which was integrated with an electric heater and a heat exchanger used for cabin ventilation. In addition to sensible storage, latent thermal storage was also investigated due to its ability to store energy at near constant temperatures. According to the simulation results, a thermal storage can increase the range close to 25%. This benefit is heavily dependent on the storage volume, storage initial temperature, and ambient temperature.","PeriodicalId":228690,"journal":{"name":"2017 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121650088","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}