2007 IEEE Vehicle Power and Propulsion Conference最新文献

{"title":"Large Area Silicon Carbide Vertical Junction Field Effect Transistors for High Temperature Power Conditioning Applications","authors":"V. Veliadis, T. McNutt, M. McCoy, H. Hearne, P. Potyraj, C. Scozzie","doi":"10.1109/VPPC.2007.4544129","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544129","url":null,"abstract":"SiC VJFETs are excellent candidates for reliable high power/temperature switching as they only use PN junctions in the active device area where the high electric fields occur. VJFETs do not suffer from forward voltage degradation, exhibit excellent short circuit performance, and operate at 300degC. 0.19 cm2 1200 V normally-on and 0.15 cm2 low-voltage normally- off VJFETs were fabricated. The 1200 V VJFET outputs 53 A with a forward drain voltage drop of 2 V and a low specific on-state resistance of 5.6 mOmega cm2. The low-voltage VJFET outputs 38 A with a forward drain voltage drop of 3 V and a specific on- state resistance of 10 mOmega cm2. The 1200 V SiC VJFET was connected in the cascode configuration with a Si MOSFET and with a low-voltage SiC VJFET to form normally-off power switches. At a forward drain voltage drop of 2 V, the SiC/MOSFET cascode switch outputs 31 A and the all-SiC cascode switch outputs 19 A.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"406 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123965875","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":"Integrated Bi-Directional AC/DC and DC/DC Converter for Plug-in Hybrid Electric Vehicle Conversion","authors":"Young-Joo Lee, A. Emadi","doi":"10.1109/VPPC.2007.4544128","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544128","url":null,"abstract":"As the result of a wide range of efforts to improve fuel economy and reduce emissions of conventional vehicles, hybrid electric vehicle (HEV) technology has been commercialized. HEVs show better mile per gallon (MPG) than conventional vehicles. As a new practical breakthrough to reduce air pollution and fuel consumption, particularly in urban areas, converting HEVs into plug-in hybrid electric vehicles (PHEVs) has been considered significant. PHEVs have a battery pack of high energy density and can run solely on electric power for a given range. The battery pack can be recharged by neighborhood outlet charger. In this paper, a novel integrated bi-directional AC/DC and DC/DC converter (IBADDDC) will be proposed, which is able to function as a battery charger and to transfer electrical energy between battery pack and the high voltage bus of the electric drive train system. It is shown that IBADDDC can provide the reduced number of high current inductors and current transducers, and fault current tolerance in high power applications for PHEV conversion.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116635280","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":"Trip Based Power Management of Plug-in Hybrid Electric Vehicle with Two-Scale Dynamic Programming","authors":"Q. Gong, Yaoyu Li, Z. Peng","doi":"10.1109/VPPC.2007.4544089","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544089","url":null,"abstract":"The plug-in HEV (PHEV), utilizing more battery power, has become the next-generation HEV with great promise of higher fuel economy. The charge-depletion mode is more appropriate for the power management of PHEV, i.e. the state of charge (SOC) is expected to drop to a low threshold when the vehicle reaches the destination of the trip. Globally optimized charge-depletion power management would be desirable. However, this has so far been hampered due to the a priori nature of the trip information and the prohibitive computational cost of global optimization techniques such as dynamic programming (DP). This situation can be changed by the current advancement of intelligent transportation systems (ITS) based on the use of on-board GPS, GIS, real-time and historical traffic flow data and advanced traffic flow modeling techniques. In this paper, charge-depletion control of PHEV is nearly globally optimized with a two-scale dynamic programming approach based on trip modeling with real-time and historical traffic data. For DP based charge-depletion control of PHEV, the SOC is desired to drop to a specific terminal value at the end of the trip. By specifying the origin and destination of a trip, the trip model, i.e. the driving cycle, is first obtained with the average of the historic traffic data, and the globally optimized SOC profile can be obtained by solving the overall or the macro-scale DP problem. The actual power management can be adapted during real-time vehicle operation with a micro-scale DP framework. The whole trip is divided into a number of segments, and for each segment, a smaller DP will be solved using the on-line traffic data transmitted to the vehicle from the traffic flow sensors within the segment. The SOC obtained in the macro-scale DP solution at the terminal location is reinforced to be the final value. Simulation study has been performed on a hybrid SUV model from ADVISOR, and a defined trip in the greater Milwaukee area. The simulation results demonstrated significant improvement in fuel economy using DP based charge-depletion control compared to rule based control, and also the benefit of adaptation using the two-scale DP method.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131705511","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":"Comparative Analysis of Control Techniques for Efficiency Improvement in Electric Vehicles","authors":"A. Haddoun, M. Benbouzid, D. Diallo, R. Abdessemed, J. Ghouili, K. Srairi","doi":"10.1109/VPPC.2007.4544199","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544199","url":null,"abstract":"This paper presents system analysis, modeling and simulation of an electric vehicle (EV) with three different control strategies: field oriented control (FOC), direct torque control (DTC), and DTC using space vector modulation (DTC- SVM). The objective is to assess the control strategy impact on the EV efficiency taking into account the vehicle dynamics. Indeed, among EV motor electric propulsion features, the energy efficiency is a basic characteristic that is influenced by vehicle dynamics and system architecture. Simulation tests have been carried out on a 37-kW EV that consists in an induction motor with a three-level IGBT inverter. Preliminary results seem to indicate that the DTC-SVM scheme is the best candidate.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128950571","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":"Transient Motion Characteristics When Electric Vehicles with the Structure Driven by Front and Rear Wheels Independently Fail","authors":"N. Mutoh, Y. Takahashi","doi":"10.1109/VPPC.2007.4544216","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544216","url":null,"abstract":"Transient motion characteristics when electric vehicles (EVs) with the drive structure driven by front and rear wheels independently fail analyzed using a simulator based on the four-wheel model. The simulator can be applied to clarify failsafe drive performance of various type EVs like four in-wheel motor drive type EVs. Yaw rate and skid angle which are related to drivability and steerability of vehicles and which further influence the safety of vehicles during runs are analyzed under the condition that one of the motor drive systems fails while cornering on wet roads. In comparison with four in-wheel motor drive type EVs, it is confirmed that the EVs with the structure focused on here have little change of the yaw rate and hardly any dangerous phenomena appear which would cause an increase in the skid angle of vehicles even if the front or rear wheel drive system fails when running on wet roads with low friction coefficient. Moreover, the failsafe drive performance of the EVs with the above structure is verified through experiments using a prototype EV.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127436400","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":"Integrated Filter Elements in Electric Drives","authors":"B.M. Nee, P. Chapman","doi":"10.1109/VPPC.2007.4544115","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544115","url":null,"abstract":"There are opportunities in electric drives for integration of filter elements. Integration can consist of utilizing existing the magnetic material for an input inductor, or using the rotor inertia for power filtering. Though integration, mass or cost, or both can be reduced. This could be particularly important for vehicular applications. An integrated inductor design is done using magnetic equivalent circuits and examined with finite element analysis. Rotor inertia is used to displace electrical passive components and thereby reduce the filter requirements of the dc-link capacitor. This is shown in permanent magnet synchronous machine drive simulation.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130611257","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":"State Space Modeling and Simulation of Sensorless Control of Brushless DC Motors Using Instantaneous Rotor Position Tracking","authors":"S. Zabalawi, A. Nasiri","doi":"10.1109/VPPC.2007.4544104","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544104","url":null,"abstract":"This paper presents a state space modeling, simulation and control of permanent magnet brushless DC motors. By reading the instantaneous position of the rotor as an output of the state space mathematical model, the motor can be controlled without the need for any external sensors or position detection techniques. Simulink is utilized, with the assistance of Matlab, to approach a very flexible, yet reliable simulation. The simulation has two especial features. First of all, it does not exploit any block from SimPowerSystems toolbox to avoid the need for a high performance processor, large space memory and long simulation time. Secondly, the simulation allows for twenty motor specifications to be selected by the user and twenty variables to be monitored at the output. This feature helps verifying the effect of every single entry on the motor performance.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130764416","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":"SDTC Neural Network Traction Control of an Electric Vehicle without Differential Gears","authors":"A. Haddoun, F. Khoucha, M. Benbouzid, D. Diallo, R. Abdessemed, K. Srairi","doi":"10.1109/VPPC.2007.4544135","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544135","url":null,"abstract":"This paper proposes a sensorless direct torque control (SDTC) neural network traction control approach of an electric vehicle (EV) without differential gears (electrical differential system). The EV is in this case propelled by two induction motor (one for each wheel). Indeed, using two electric in-wheel motors give the possibility to have a torque and speed control in each wheel. This control level improves the EV stability and the safety. The proposed traction control system uses the vehicle speed that is different from wheels speed characterized by slip in the driving mode, as an input. In terms of the analysis and the simulations carried out, the conclusion can be drawn that the proposed system is feasible. Simulation results on a test vehicle propelled by two 37-kW induction motors showed that the proposed SDTC neural network approach operates satisfactorily.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126445984","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":"Uninterruptible Power Supplies for Fuel-Cell-Vehicles","authors":"Farshad Harirchi","doi":"10.1109/VPPC.2007.4544096","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544096","url":null,"abstract":"In this paper the utilization of uninterruptible- power-supplies (UPS) in fuel-cell-vehicles is proposed. FCVs can take advantage of UPS for several purposes. It has been shown that fuel cell systems prefer constant load in order to operate reliably and with extended life time. At times when FCV load suddenly changes (e.g., acceleration, breaking) the condition of constant load on a fuel cell system is violated. Therefore UPS can be utilized to supply and sink portions of the load that might otherwise damage the fuel cell system. This paper reports design of an uninterruptible power system for vehicles. This work to a great degree is experimental and it demonstrates the feasibility of utilizing UPS in fuel-cell-vehicles.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129563306","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":"Efficiency and Loss Models for Key Electronic Components of Hybrid and Plug-in Hybrid Electric Vehicles' Electrical Propulsion Systems","authors":"Jian Cao, D. Bharathan, A. Emadi","doi":"10.1109/VPPC.2007.4544172","DOIUrl":"https://doi.org/10.1109/VPPC.2007.4544172","url":null,"abstract":"Isolated gate bipolar transistors (IGBTs) are widely used in power electronic applications including electric, hybrid electric, and plug-in hybrid electric vehicles (EVs, HEVs, and PHEVs). The trend towards more electric vehicles (MEVs) has demanded the need for power electronic devices capable of handling power in the range of 10-100 kW. However, the converter losses in this power range are of critical importance. Therefore, thermal management of the power electronic devices/converters is crucial for the reliability and longevity of the advanced vehicles. To aid the design of heat exchangers for the IGBT modules used in propulsion motor drives, a loss model for the IGBTs is necessary. The loss model of the IGBTs will help in the process of developing new heat exchangers and advanced thermal interface materials by reducing cost and time. This paper deals with the detailed loss modeling of IGBTs for advanced electrical propulsion systems. An experimental based loss model is proposed. The proposed loss calculation method utilizes the experimental data to reconstruct the loss surface of the power electronic devices by means of curve fitting and linear extrapolating. This enables the calculation of thermal losses in different voltage, current, and temperature conditions of operation. To verify the calculation method, an experimental test set-up was designed and built. The experimental set-up is an IGBT based bi-directional DC/DC converter. In addition, simulation results are presented to verify the proposed calculation method.","PeriodicalId":345424,"journal":{"name":"2007 IEEE Vehicle Power and Propulsion Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129822982","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}