Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520244
Deepak Rozario, N. A. Azeez, S. Williamson
This paper is focused on the analysis and design of the capacitive plates of the capacitive wireless power transfer system. The coupling structure resembles a loosely coupled capacitor. The electric field coupling interface is the most vital part of the wireless technology. The coupling interface determines the capacitance of the coupling capacitors, maximum power transfer, frequency and overall efficiency of the system. The paper is dedicated to understand the behaviour of the system with respect to the structural construction, frequency of operation and factors that affect the power transfer of the system. The various arrangements and configurations of the capacitive power transfer (CPT) are discussed. The important factors affects the value of coupling capacitance are discussed. Based on results obtained from the analysis, a design guide line is laid out for the construction of the coupling capacitors. The design guidelines addresses critical issues such as operational voltage, temperature stability and selection of the dielectric material. The construction of the system is simple, rugged and inexpensive, which makes it a great contender among the other wireless technology.
{"title":"Analysis and design of coupling capacitors for contactless capacitive power transfer systems","authors":"Deepak Rozario, N. A. Azeez, S. Williamson","doi":"10.1109/ITEC.2016.7520244","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520244","url":null,"abstract":"This paper is focused on the analysis and design of the capacitive plates of the capacitive wireless power transfer system. The coupling structure resembles a loosely coupled capacitor. The electric field coupling interface is the most vital part of the wireless technology. The coupling interface determines the capacitance of the coupling capacitors, maximum power transfer, frequency and overall efficiency of the system. The paper is dedicated to understand the behaviour of the system with respect to the structural construction, frequency of operation and factors that affect the power transfer of the system. The various arrangements and configurations of the capacitive power transfer (CPT) are discussed. The important factors affects the value of coupling capacitance are discussed. Based on results obtained from the analysis, a design guide line is laid out for the construction of the coupling capacitors. The design guidelines addresses critical issues such as operational voltage, temperature stability and selection of the dielectric material. The construction of the system is simple, rugged and inexpensive, which makes it a great contender among the other wireless technology.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132370623","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}
Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520306
D. Bilyi, V. Bilyi, D. Gerling
The current publication introduces a FEM software based developed six-phase claw-pole alternator model. A model of power electronics has been built as well. The FEM model of the claw-pole alternator was co-simulated with the model of the power electronics. The FEM model was developed based on measurements of a real claw-pole alternator. In order to determine geometries and dimensions of components of the electrical machine, the examined claw-pole alternator was disassembled after electrical and mechanical measurements and various tests have been proceeded.
{"title":"FEM based model development and co-simulation of automotive multi-phase claw-pole alternator and rectifier","authors":"D. Bilyi, V. Bilyi, D. Gerling","doi":"10.1109/ITEC.2016.7520306","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520306","url":null,"abstract":"The current publication introduces a FEM software based developed six-phase claw-pole alternator model. A model of power electronics has been built as well. The FEM model of the claw-pole alternator was co-simulated with the model of the power electronics. The FEM model was developed based on measurements of a real claw-pole alternator. In order to determine geometries and dimensions of components of the electrical machine, the examined claw-pole alternator was disassembled after electrical and mechanical measurements and various tests have been proceeded.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"520 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123056739","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}
Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520299
A. Barai, W. D. Widanage, A. McGordon, P. Jennings
Open circuit voltage (OCV) is a crucial parameter in an equivalent circuit model (ECM). The path dependence of OCV is a distinctive characteristic of a Li-ion battery; this is known as OCV hysteresis. In this manuscript the influence of temperature and charge/discharge rate on OCV hysteresis has been identified. OCV hysteresis was found to be 13mV higher at 0°C while remaining unchanged at 45°C compared to the 25°C result. In general, OCV hysteresis was found to be less dependent on charge/discharge rate than temperature. The potential explanations of these results have been reported.
{"title":"The influence of temperature and charge-discharge rate on open circuit voltage hysteresis of an LFP Li-ion battery","authors":"A. Barai, W. D. Widanage, A. McGordon, P. Jennings","doi":"10.1109/ITEC.2016.7520299","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520299","url":null,"abstract":"Open circuit voltage (OCV) is a crucial parameter in an equivalent circuit model (ECM). The path dependence of OCV is a distinctive characteristic of a Li-ion battery; this is known as OCV hysteresis. In this manuscript the influence of temperature and charge/discharge rate on OCV hysteresis has been identified. OCV hysteresis was found to be 13mV higher at 0°C while remaining unchanged at 45°C compared to the 25°C result. In general, OCV hysteresis was found to be less dependent on charge/discharge rate than temperature. The potential explanations of these results have been reported.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"62 44","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131639421","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}
Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520290
P. Pramod, Zhe Zhang, R. Mitra, S. Paul, R. Islam, Julie A. Kleinau
Feedforward current control is a widely employed control technique for cost-sensitive permanent magnet synchronous motor (PMSM) drive systems since it does not require current measurements. Feedforward compensation is usually static, but dynamic compensation can be also employed to improve the bandwidth of the current control loop. Typically, the feedforward current (or torque) control requires accurate knowledge of motor parameters to achieve robust steady-state and dynamic performance. However, in practice, the machine parameters vary highly nonlinearly as the operating condition of the PMSM changes. Therefore, it is important to analyze and understand the impact of machine parameter estimation errors on the steady-state as well as dynamic performance of the system. In this paper, the analytical expressions for the actual currents in a feedforward current controlled PMSM drive system under the presence of parameter estimation errors are developed. The presented analysis is verified by experimental results on a commercial PMSM.
{"title":"Impact of parameter estimation errors on feedforward current control of permanent magnet synchronous motors","authors":"P. Pramod, Zhe Zhang, R. Mitra, S. Paul, R. Islam, Julie A. Kleinau","doi":"10.1109/ITEC.2016.7520290","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520290","url":null,"abstract":"Feedforward current control is a widely employed control technique for cost-sensitive permanent magnet synchronous motor (PMSM) drive systems since it does not require current measurements. Feedforward compensation is usually static, but dynamic compensation can be also employed to improve the bandwidth of the current control loop. Typically, the feedforward current (or torque) control requires accurate knowledge of motor parameters to achieve robust steady-state and dynamic performance. However, in practice, the machine parameters vary highly nonlinearly as the operating condition of the PMSM changes. Therefore, it is important to analyze and understand the impact of machine parameter estimation errors on the steady-state as well as dynamic performance of the system. In this paper, the analytical expressions for the actual currents in a feedforward current controlled PMSM drive system under the presence of parameter estimation errors are developed. The presented analysis is verified by experimental results on a commercial PMSM.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133216365","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}
Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520295
Dongdong Zhao, Yong Li, Y. Huangfu, M. Dou, Bo Tan
Air compressor which is employed to supply the oxygen to the cathode is a key component in the fuel cell system. It is also the main parasitic consumption, which consumes up to 15% of fuel cell generated power. How to find out the most efficiency operating point, thereby reduce the compressor consumption, is the research topic of this paper. Oxygen excess ratio connected both to the stack output power and compressor consumption is deemed as a adjustable parameter to optimize the net power. A optimal seeking approach is proposed to obtain the maximum output power. Compared with the lookup table method the proposed approach has the advantage of robustness eliminating affection by the working condition variations. The validity of this approach is proved by simulation results.
{"title":"Energy optimization of a PEM fuel cell system by minimizing the parasitic consumption generated by the compressor","authors":"Dongdong Zhao, Yong Li, Y. Huangfu, M. Dou, Bo Tan","doi":"10.1109/ITEC.2016.7520295","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520295","url":null,"abstract":"Air compressor which is employed to supply the oxygen to the cathode is a key component in the fuel cell system. It is also the main parasitic consumption, which consumes up to 15% of fuel cell generated power. How to find out the most efficiency operating point, thereby reduce the compressor consumption, is the research topic of this paper. Oxygen excess ratio connected both to the stack output power and compressor consumption is deemed as a adjustable parameter to optimize the net power. A optimal seeking approach is proposed to obtain the maximum output power. Compared with the lookup table method the proposed approach has the advantage of robustness eliminating affection by the working condition variations. The validity of this approach is proved by simulation results.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115286650","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}
Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520254
Woongkul Lee, Erik Schubert, Yingjie Li, Silong Li, Dheeraj Bobba, B. Sarlioglu
Forced induction technology (turbocharging and supercharging) can enhance the performance of an internal combustion engine by compressing inlet air charge, allowing full engine power to be produced efficiently. As the fuel economy and greenhouse gas emission standards are projected to be much more stringent globally, the use of a forced induction engine in passenger cars and light duty trucks has become a new inevitable trend in the automotive industry. However, the conventional forced induction system suffers from the slow transient response, especially when the engine speed is low, a phenomenon typically known as turbo lag. The electrification of forced induction system, called electric forced induction system (EFIS), has emerged as a feasible solution and it also possesses numerous benefits depending on its topologies. This paper provides a comprehensive study on EFIS by investigating system level topologies, performance, various types of high-speed machines, power electronics, and control techniques. The advantages and disadvantages of existing electric forced induction system are summarized and the new challenges and opportunities are also introduced.
{"title":"Electrification of turbocharger and supercharger for downsized internal combustion engines and hybrid electric vehicles-benefits and challenges","authors":"Woongkul Lee, Erik Schubert, Yingjie Li, Silong Li, Dheeraj Bobba, B. Sarlioglu","doi":"10.1109/ITEC.2016.7520254","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520254","url":null,"abstract":"Forced induction technology (turbocharging and supercharging) can enhance the performance of an internal combustion engine by compressing inlet air charge, allowing full engine power to be produced efficiently. As the fuel economy and greenhouse gas emission standards are projected to be much more stringent globally, the use of a forced induction engine in passenger cars and light duty trucks has become a new inevitable trend in the automotive industry. However, the conventional forced induction system suffers from the slow transient response, especially when the engine speed is low, a phenomenon typically known as turbo lag. The electrification of forced induction system, called electric forced induction system (EFIS), has emerged as a feasible solution and it also possesses numerous benefits depending on its topologies. This paper provides a comprehensive study on EFIS by investigating system level topologies, performance, various types of high-speed machines, power electronics, and control techniques. The advantages and disadvantages of existing electric forced induction system are summarized and the new challenges and opportunities are also introduced.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115483837","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}
Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520286
Espen Skjong, S. Gale, M. Molinas, T. Johansen
Efficiency and reliability are important properties for a marine vessel power system, both from an economical point of view and for safety reasons. Efficiency and reliability correlate with power quality, as a poor power quality may endanger devices in the system as well as reducing the power factor(s). In this initial work bi-linear methods such as Principal Component Analysis (PCA) and Partial Least Squares Regression (PLSR) are explored as tools for analysing and predicting harmonic pollution depending on the load demands in the system. The analysis and prediction are data-driven, giving the data a chance to speak for itself.
{"title":"Data-Driven decision support tool for power quality measures in marine vessel power system","authors":"Espen Skjong, S. Gale, M. Molinas, T. Johansen","doi":"10.1109/ITEC.2016.7520286","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520286","url":null,"abstract":"Efficiency and reliability are important properties for a marine vessel power system, both from an economical point of view and for safety reasons. Efficiency and reliability correlate with power quality, as a poor power quality may endanger devices in the system as well as reducing the power factor(s). In this initial work bi-linear methods such as Principal Component Analysis (PCA) and Partial Least Squares Regression (PLSR) are explored as tools for analysing and predicting harmonic pollution depending on the load demands in the system. The analysis and prediction are data-driven, giving the data a chance to speak for itself.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123139132","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}
Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520175
W. Tong
This article consists of a collection of slides from the author's conference presentation on the mechanical design of electric machines.
本文收录了作者在会议上关于电机机械设计的演讲幻灯片。
{"title":"Mechanical design of electric machines","authors":"W. Tong","doi":"10.1109/ITEC.2016.7520175","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520175","url":null,"abstract":"This article consists of a collection of slides from the author's conference presentation on the mechanical design of electric machines.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123390445","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}
Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520237
A. Christmann, D. Levett
In the design of a next generation power module for the automotive traction market it was important to consider every aspect of the module design, the package, the interconnection technology and the chip design. This paper describes how the chip was optimized for both reduced losses and improvements in chip interconnections. Short term higher peak junction temperature operation allows for higher output currents. Details on the improvements in packaging with a smaller footprint and lower bus inductance are presented and it is shown how all these improvements combined allow for a lower cost and higher power density solution.
{"title":"Design considerations for next generation traction drive IGBT based power modules","authors":"A. Christmann, D. Levett","doi":"10.1109/ITEC.2016.7520237","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520237","url":null,"abstract":"In the design of a next generation power module for the automotive traction market it was important to consider every aspect of the module design, the package, the interconnection technology and the chip design. This paper describes how the chip was optimized for both reduced losses and improvements in chip interconnections. Short term higher peak junction temperature operation allows for higher output currents. Details on the improvements in packaging with a smaller footprint and lower bus inductance are presented and it is shown how all these improvements combined allow for a lower cost and higher power density solution.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124779488","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}
Pub Date : 2016-06-27DOI: 10.1109/ITEC.2016.7520292
A. S. Murthy, D. P. Magee, David G. Taylor
Regenerative braking, which involves conversion of kinetic energy to electric energy, is a key technology used to improve the efficiency of motor drive systems. This paper develops and compares two regenerative braking control laws for induction machines operating under field orientation principles to achieve regulation of torque and flux. One control law maximizes the controllable electric energy returned over the entire duration of a braking event, whereas the other control law maximizes the controllable electric power returned at each time instant throughout a braking event. Simulations and experiments are presented to illustrate the proposed control methods.
{"title":"Optimized regenerative braking of induction machines with indirect field-oriented control","authors":"A. S. Murthy, D. P. Magee, David G. Taylor","doi":"10.1109/ITEC.2016.7520292","DOIUrl":"https://doi.org/10.1109/ITEC.2016.7520292","url":null,"abstract":"Regenerative braking, which involves conversion of kinetic energy to electric energy, is a key technology used to improve the efficiency of motor drive systems. This paper develops and compares two regenerative braking control laws for induction machines operating under field orientation principles to achieve regulation of torque and flux. One control law maximizes the controllable electric energy returned over the entire duration of a braking event, whereas the other control law maximizes the controllable electric power returned at each time instant throughout a braking event. Simulations and experiments are presented to illustrate the proposed control methods.","PeriodicalId":280676,"journal":{"name":"2016 IEEE Transportation Electrification Conference and Expo (ITEC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124003813","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}
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