Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Assessment And Analysis Of The Electromagnetic Profile Of Prototype High Power Charging Units For Electric Vehicles
Download Assessment And Analysis Of The Electromagnetic Profile Of Prototype High Power Charging Units For Electric Vehicles full books in PDF, epub, and Kindle. Read online Assessment And Analysis Of The Electromagnetic Profile Of Prototype High Power Charging Units For Electric Vehicles ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Assessment and Analysis of the Electromagnetic Profile of Prototype High-power-charging Units for Electric Vehicles by :
Download or read book Assessment and Analysis of the Electromagnetic Profile of Prototype High-power-charging Units for Electric Vehicles written by and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This science for policy report discusses and analyses the electromagnetic compatibility (EMC) performance of three High-Power-Charging (HPC) columns at their standby based on IEC 61851-21-2 standard. All laboratory setups and results of the tests that are presented on this work were carried out inside VeLA 9 validated EMC semi-anechoic chamber (SAC) at the Joint Research Centre of the European Commission. The results of more than 150 different measured setups on radiated emissions, conducted emissions and radiated immunity are presented and discussed thoroughly. The applicable test methodologies and instrumentation used for the measurements are fully described. EMC troubleshooting techniques were also successfully carried out for some setups, while novel exploratory work, beyond IEC 61851-21-2 was also conducted. The findings and test data on this study can be a reference material to EMC engineers and contribute to the future policy making of the relevant EMC standards.
Book Synopsis Electromagnetic Compatibility of Electric Vehicle by : Li Zhai
Download or read book Electromagnetic Compatibility of Electric Vehicle written by Li Zhai and published by Springer Nature. This book was released on 2021-01-30 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the electromagnetic compatibility(EMC) of electric vehicle(EV), including EMC of the whole vehicle, electromagnetic interference(EMI) prediction and suppression of motor drive system, EMI prediction and suppression of DC-DC converter, electromagnetic field safety and EMC of wireless charging system, signal integrity and EMC of the vehicle controller unit(VCU), EMC of battery management system(BMS), electromagnetic radiated emission diagnosis and suppression of the whole vehicle, etc. The analysis method, modeling and simulation method, test method and rectification method of EMC are demonstrated. The simulation and experimental results are presented as tables and figures. This book is useful as reference for graduate students, senior undergraduates and engineering technicians of vehicle engineering related majors. For EMI prediction, suppression and EMC optimization design for EVs, this book provides reference for engineers to solve EMC problems. This book is intended for senior undergraduates, postgraduates, lecturers and laboratory researchers engaged in electric vehicle and electromagnetic compatibility research.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On the Evaluation of Electromagnetic Compatibility (EMC) of a Prototype Electric Vehicle by :
Download or read book On the Evaluation of Electromagnetic Compatibility (EMC) of a Prototype Electric Vehicle written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As a part of its mission, JRC performs pre-normative research in strategically important areas, often in private-public partnership, if methodological knowledge consolidation is in reach. Specifically for road-bound electro-mobility, the JRC's European Interoperability Centre for Electric Vehicles and Smart Grids can test the electromagnetic compatibility of electric vehicles in full road simulation and in recharging, by virtue of its VeLA 9 electromagnetically semi-anechoic chamber (SAC) with integrated, filtered recharging power supplies and a shielded 4x4 roller bench. In this context, the authors accepted requests by several external vehicle manufacturers to carry out conductive and radiated emissions measurements on prototypic and series electric vehicles (EV) under charge, in accordance with national and international electromagnetic compatibility (EMC) automotive and electro-technical standards. Such measurements require the presence of dedicated EMC instrumentation and properly validated laboratory facilities, not only including the semi-anechoic chamber itself, but also antennas, shielded cablings, electromagnetic interference (EMI) receivers and line impedance stabilisation networks (LISNs) that VeLA 9 is equipped with for such purposes, all complying to the requirements of EMC regulations.
Book Synopsis Electromagnetic Compatibility (EMC) Evaluation of a Prototype Solar-charged Electric Race-car by :
Download or read book Electromagnetic Compatibility (EMC) Evaluation of a Prototype Solar-charged Electric Race-car written by and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: EMC is an indispensable process throughout the design and manufacturing cycle of any electrical and electronic product. Prior to their launch on the market, these must comply and conform to a series of applicable EMC standards and regulations that aim to protect equipment against EMI. This is more than crucial to automotive EMC as it is associated with the operation of the vehicle's modules and hence the functional safety and reliability of the system against unintentional and intentional EM disturbances. This report presents and analyses the results of EMC laboratory measurements, based on CISPR 12 and IEC 61851-21-1, of a prototype solar-charged electric race-car during driving and charging conditions. The structure of the report is as follows: Section 1 outlines fundamental aspects of EMC and EMI applicable to the electric driven vehicles. Section 2 gives a background of the current automotive EMC regulatory procedures and provides information about the maximum allowed limits. Description of the EMC test facility and the instrumentation used during the measurements is provided on Section 3. Section 4 presents the results of the EMC tests in accordance with the standards, complemented by exploratory test methods, while Section 5 concludes on the main findings of the EMC measurement activity of the prototype vehicle.
Book Synopsis Electromagnetic Emissions Assessment of a Plug-in Hybrid Electric Vehicle in Dynamic Driving Conditions by :
Download or read book Electromagnetic Emissions Assessment of a Plug-in Hybrid Electric Vehicle in Dynamic Driving Conditions written by and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to safeguard potential benefits brought by the electrification of road transport it becomes more and more important to evaluate the performance of hybrid, fully battery-powered and fuel-cell powered electric vehicles (HEVs, BEVs and FCEVs) in terms of electromagnetic emissions in charging and real-driving conditions. The present report describes the results of a test campaign conducted on a station wagon, namely a Peugeot 508 SW PHEV (hybrid plug-in vehicle) within the EC Joint Research Centre's VELA 9 laboratory, providing a semi-anechoic chamber for testing electromagnetic compatibility of all types of EVs. The vehicle was tested not only according to the UNECE Regulation n.10, but then also under more realistic driving conditions beyond the requirements of that regulation, in order to check its performance in terms of radiated emissions with regard to electromagnetic compatibility. Other tests were conducted beyond UNECE Reg. 10, in order to assess possible improvements on the current measurement procedures. The influence of different speeds, driving cycles, driving mode settings, and measurement setups on the vehicle's electromagnetic emissions was evaluated as well as a broader set of frequency ranges explored.
Book Synopsis In-Vehicle Assessment of Human Exposure to Electromagnetic Fields from 25-kW Wireless Power Transfer System Based on Near-Field Analysis by :
Download or read book In-Vehicle Assessment of Human Exposure to Electromagnetic Fields from 25-kW Wireless Power Transfer System Based on Near-Field Analysis written by and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless power transfer (WPT) technology has the potential to be a convenient and reliable charging method for the light and heavy duty electric vehicles. However, the loose coupling between the two sides results in strong near-electromagnetic fields (EMFs) around the system, which may have the possibility to impact human safety if the standard limits are exceeded. Therefore, comprehensive tests are necessary to ensure the electromagnetic fields are with in safe limits. This paper presents a test methodology for the near-field from a 25-kW WPT system from Momentum Dynamics, which is installed in a heavy-duty electric shuttle at the National Renewable Energy Laboratory (NREL). The paper describes in detail the measuring device, test setup, and conditions.
Book Synopsis Technologies and Applications for Smart Charging of Electric and Plug-in Hybrid Vehicles by : Ottorino Veneri
Download or read book Technologies and Applications for Smart Charging of Electric and Plug-in Hybrid Vehicles written by Ottorino Veneri and published by Springer. This book was released on 2017-01-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book outlines issues related to massive integration of electric and plug-in hybrid electric vehicles into power grids. Electricity is becoming the preferred energy vector for the next new generation of road vehicles. It is widely acknowledged that road vehicles based on full electric or hybrid drives can mitigate problems related to fossil fuel dependence. This book explains the emerging and understanding of storage systems for electric and plug-in hybrid vehicles. The recharging stations for these types of vehicles might represent a great advantage for the electric grid by facilitating integration of renewable and distributed energy production. This book presents a broad review from analyzing current literature to on-going research projects about the new power technologies related to the various charging architectures for electric and plug-in hybrid vehicles. Specifically focusing on DC fast charging operations, as well as, grid-connected power converters and the full range of energy storage systems. These key components are analyzed for distributed generation and charging system integration into micro-grids. The authors demonstrate that these storage systems represent effective interfaces for the control and management of renewable and sustainable distributed energy resources. New standards and applications are emerging from micro-grid pilot projects around the world and case studies demonstrate the convenience and feasibility of distributed energy management. The material in this unique volume discusses potential avenues for further research toward achieving more reliable, more secure and cleaner energy.
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plug-In Hybrid Electric Vehicle HEV System and Charging Technology Evaluation by : Andrew F. Burke
Download or read book Plug-In Hybrid Electric Vehicle HEV System and Charging Technology Evaluation written by Andrew F. Burke and published by . This book was released on 2012 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling of Magnetic Resonance Wireless Electric Vehicle Charging by : Erhuvwu Ayisire
Download or read book Modeling of Magnetic Resonance Wireless Electric Vehicle Charging written by Erhuvwu Ayisire and published by . This book was released on 2019 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's abstract: Due to the fast-growing market for an electric vehicle, it is necessary that the drawbacks involved in electric vehicle technology should be overcome, therefore introducing a wireless charging technique which is more convenient as battery cost, recharge time and weight has been removed. Different wireless charging techniques for electric vehicles are discussed. This research work investigates the feasibility of wireless power transfer for Electric Vehicles by electromagnetic resonance coupling. Wireless power transfer (WPT) for Electric Vehicles by magnetic resonance coupling is of high priority due to its efficiency, high power transmission, and more considerable charging distance. Simulation results show the energy transfer efficiency between two magnetically coupled resonating coils. However, results show the effects of parameters such as an inductor, capacitor, load and coupling coefficient on efficiency. Additionally, implementation of a closed loop circuit using a three-level cascaded PI controller for the dynamic wireless electric vehicle charging to eliminate the variation of voltage because of varied spacing existing between both coils as the vehicle is in motion and thereby delivering a constant voltage and constant current to the load is carried out. Simulation results and comparison with a single level PI controller indicate the effectiveness of the control method. A fuzzy logic and neuro-fuzzy controller are implemented for the wireless electric vehicle transfer which is seen to be more robust than the PI controller as there is no undershoot in the output voltage. Furthermore, wireless power transfer with three - level cascaded PI controller with MPPT is designed. The proposed system consists of a solar PV array, boost DC/DC converter, inverter, transmitter coil, a receiver coil, rectifier, buck converter, and batteries. The design of the MPPT controller tracks the highest voltage and current from the PV array required to charge a battery in which the highest power point voltage is 61.5 V. The stability analysis for the closed-loop system has been done and the system is asymptotically stable.
Book Synopsis Electric Vehicles at Scale (EVs@Scale) Laboratory Consortium Deep-Dive Technical Meetings: High Power Charging (HPC) Summary Report by :
Download or read book Electric Vehicles at Scale (EVs@Scale) Laboratory Consortium Deep-Dive Technical Meetings: High Power Charging (HPC) Summary Report written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electric vehicle (EV) adoption will change the composition of EV charging load to higher-power charging as more medium- (MD) and heavy-duty (HD) applications are electrified, and as all vocations, including light-duty (LD) vehicles, are capable of faster charging. These shifts provide the opportunity for high-power charging (HPC) and facility equipment to evolve and improve efficiency, cost, and space. High-Power Electric Vehicle Charging Hub Integration Platform (eCHIP) project designs and develops a high-power, interoperable charging experimental platform to research, develop, and demonstrate the integration approaches and technology solutions. The project addresses (1) interconnection and management of a grid-tied inverter; (2) development of a DC distribution system that is responsible for system energy management, interoperability, and DC protection; (3) modular DC/DC conversion for vehicle charging; (4) EV charging interface and DC/DC integration; and (5) smart charge control and vehicle-to-edge (vehicle-to-building [V2B], vehicle-to-everything [V2X]) capability. This summary presentation is the first technical progress output of the project. It provides insight for the first deep-dive technical meeting outputs in terms of research presentations and also includes summary of the discussions occurred in the follow-up breakout sessions. The summary presentation covers three technical areas: (1) HPC: State of the art power architectures and the design of the power electronics, (2) Modeling, energy management, and power control in the HPC station, and (3) Codes and standards work that are in line with the previous two topic areas.
Book Synopsis Wireless Power Transfer for Electric Vehicles: Foundations and Design Approach by : Alicia Triviño-Cabrera
Download or read book Wireless Power Transfer for Electric Vehicles: Foundations and Design Approach written by Alicia Triviño-Cabrera and published by Springer Nature. This book was released on 2019-09-19 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the fundamentals and applications of wireless power transfer (WPT) in electric vehicles (EVs). Wireless power transfer (WPT) is a technology that allows devices to be powered without having to be connected to the electrical grid by a cable. Electric vehicles can greatly benefit from WPT, as it does away with the need for users to manually recharge the vehicles’ batteries, leading to safer charging operations. Some wireless chargers are available already, and research is underway to develop even more efficient and practical chargers for EVs. This book brings readers up to date on the state-of-the-art worldwide. In particular, it provides: • The fundamental principles of WPT for the wireless charging of electric vehicles (car, bicycles and drones), including compensation topologies, bi-directionality and coil topologies. • Information on international standards for EV wireless charging. • Design procedures for EV wireless chargers, including software files to help readers test their own designs. • Guidelines on the components and materials for EV wireless chargers. • Review and analysis of the main control algorithms applied to EV wireless chargers. • Review and analysis of commercial EV wireless charger products coming to the market and the main research projects on this topic being carried out worldwide. The book provides essential practical guidance on how to design wireless chargers for electric vehicles, and supplies MATLAB files that demonstrate the complexities of WPT technology, and which can help readers design their own chargers.
Book Synopsis Large Space Structures & Systems in the Space Station Era by :
Download or read book Large Space Structures & Systems in the Space Station Era written by and published by . This book was released on 1991 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental and Analytical Method for Assessing the Integration of Electric Vehicles Into the Bulk Power System by : Michael Elazar Legatt
Download or read book An Experimental and Analytical Method for Assessing the Integration of Electric Vehicles Into the Bulk Power System written by Michael Elazar Legatt and published by . This book was released on 2016 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, several trends are indicating a move towards a very different bulk power system. Increased integration of renewables, energy storage, synchrophasors, microgrids, Internet of Things devices, and electric vehicles are increasing the complexity of the system. While these changes have the potential to lead to significant reductions in environmental impact and peak demand growth, they also require significantly stronger, granular, and faster-moving controls to ensure reliability and resiliency. Previous research shows that electric vehicles have the potential to significantly reduce global (e.g., CO2), and regional (e.g., particulate) emissions associated with transportation. As fast-responding flexible loads, it was hypothesized that electric vehicles could participate in reliability-centric markets. To study the integration of these vehicles into the bulk power system, this project involved building an experimental charging system for electric vehicles with bulk modeling of the electric grid. This research test bed was developed in Taylor, Texas, to analyze real-world behavior of EVs in response to control signals. The diverse group of participating vehicles provided rapid response between 1/6 and 1/2 second, suggesting a strong capacity for providing grid reliability services. Successful real-world tests of primary frequency response and dispatched load control highlight the scalability of this approach. Vehicle charging patterns (as measured by load ramp and current waveform at peak) were observed to be clustered by vehicle make, indicating predictive value of high-resolution waveform measurement at the beginning of a charging session. Simulation of a network with intermittent renewables shows that inclusion of these rapidly responding EVs can strengthen system stability in normal, black start, and islanded situations. It shows that controlled EV charging can provide reliable means for improved renewables integration. The aggregation of electric vehicle charging can certainly provide fast-responding services that provide frequency support, congestion management, synthetic inertia, and many other useful services of significant value to the reliability of the bulk power system
Book Synopsis The Evaluation and Testing of a Prototype Hybrid Electric Vehicle Power Source by : Bruce C. Hilton
Download or read book The Evaluation and Testing of a Prototype Hybrid Electric Vehicle Power Source written by Bruce C. Hilton and published by . This book was released on 1994 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of New Magnetic Couplers for Wireless Charging of Electric Vehicles by : Abiezer Tejeda Marquez
Download or read book Development of New Magnetic Couplers for Wireless Charging of Electric Vehicles written by Abiezer Tejeda Marquez and published by . This book was released on 2018 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today Electric Vehicles (EVs) have attracted widespread attention from a number of sectors in society, including government, industry, and the general public. Electric Vehicles are a good alternative to conventional Internal Combustion Engine (ICE) automobiles as they are not only more environmentally friendly but also more efficient, quieter, and require less parts and maintenance. However, as battery technology is still lagging in energy density/capacity, the range EVs can reach on a single charge is still much less than ICE cars, thus causing range anxiety to EV drivers. In addition, the time required to fully charge an EV with current charging levels takes considerably more time (up to 8 hours depending on charging power) than a quick refill for ICE autos. A number of different technologies are being developed presently to make EVs more feasible for mass deployment. On the one hand, battery capacity is being increasingly improved and their price is continuously decreasing as manufacturing technologies are being optimized. Charging technologies are also being improved for higher efficiency and higher power. For example, Tesla Motors can use SuperChargers in the range of upwards 120kW and new designs being rolled out in the range of up to 350kW. However, an EV driver will have to wait more than 30 minutes to top up the battery charge level before being able to continue his or her journey. Wireless Power Transfer (WPT) is a technology that relies on electromagnetic induction resonance to transfer energy without any mechanical contact between the energy source and the load - in this case the load being the EV battery. Over the past years many advances have been accomplished in the field of WPT with different pad topologies being investigated and improved for higher coupling factors, higher air gaps between the primary and secondary coils, higher efficiency, as well as better used of materials. The most popular coil topologies include the Spiral or circular coil and the Double D (DD) coil due to their high coupling factor and simplicity. These coils are normally made of a copper winding layer made of a number of turns, a high permeability ferrite core, usually at, to boost the magnetic flux density and, hence, resulting in higher coupling factors, and finally an aluminium back plate used as both a mechanical support and magnetic fields shield. In roadway EV charging applications these pad components must be enclosed in a mechanically strong protective layer to prevent the ferrite from breaking, as it is very brittle and a critical component of the system. In this thesis, the main focus is put on the development of new non-ferrite magnetic coils for roadway charging applications where mechanical robustness is a must. The first challenge addressed is how to develop a ferrite-less pad that can generate a single-sided magnetic flux so that stray magnetic fields are contained as much as possible within the charging region. A first ferrite-less pad, called the ConcretePad, is developed that can produce a single-sided, polarized magnetic flux, similar to that of a DD pad or a Solenoid pad. The ConcretePad is able to do this by using three solenoids - two vertical flux generator place on each end of a horizontal flux generating solenoid. The solenoids are arranged so that they generate magnetic flux of opposite polarities. All three solenoids are connected in series aiding and when energized produce a magnetic flux that is boosted on one side of the pad and mitigated on the opposite size of the pad. Taking a solenoid as a unit block, a method of producing single-sided magnetic flux is developed using an array of vertical and horizontal solenoids. In principle, such an array of pads can be suitable to dynamic roadway charging. Following the development of ferrite-less solenoid arrays and the ConcretePad, a new hybrid pad, called the XPAD, is developed that combines a central horizontal solenoid and auxiliary coils on each side of the solenoid. This arrangement of the coil result in a significantly improved pad with higher coupling than that of a conventional solenoid pad and much lower flux leakage outside the charging region. In addition, no aluminum back plate is needed to shield the leakage flux on the bottom side of a solenoid as the auxiliary coils are able to reduce this component of the leakage flux. The XPAD is then improved to further reduce the leakage flux by finding a suitable turns ratio between the central solenoid and the auxiliary coils and between the auxiliary coils themselves. The pad is finally compared to a similar DD primary and shown to have higher coupling factors and higher efficiency when used with the same secondary coil. The trade-offs between the XPAD are then discussed along with possible room for improvement. As interoperability between different magnetic coils is of paramount importance, a step to develop other ferrite-less pad tolopogies is undertaken by means of Finite Element Analysis (FEA). A new non-polarized topology is first developed by combining a top main circular coil and horizontal solenoids, made into wedge-like shapes, to provide a path for the magnetic flux to ow through and mitigate any bottom leakage flux out the bottom of the pad. The pad is called the Circular Non-Ferrite Pad (CNFP). The CNFP is then improved and simplified to only two spiral coils stacked on top of each other and separated by a distance H. The coils are connected in series-opposite manner so as to cancel any unwanted leakage flux out the bottom of pad. A suitable turns ratio between the main (top) and reflection coil (bottom) is found to provide the best performance. In addition, the CNFP is further improved to reduce unwanted leakage outside the charging area by enlarging the reflection coil. This a first pad of its kind and proposed here for roadway EV charging. A prototype of the CNFP is built and measured in the lab to validate the simulation results. Following the lessons learned in the development of the CNFP, the pad is then extended into rectangular or square shapes. This is in conformance with the SAE J2954 Recommended Practice outlining strict guidelines for the development of WPT systems. The Rectangular Ferrite-less Pad (RNFP) is evaluated against a similar ferrite-based pad described in the SAE J2954. The RNFP is improved for leakage performance by finding a suitable turns ration between the main and reflection coils, by adjusting the distance between the main and reflection coil, and also by making the reflection coil larger than the main coil - in conformance with the lessons learned from the CNFP. Even though the coupling factors of the RNFP are lower than the reference ferrite pad, only about 25mm is found to be the coil-coil offset necessary so that both coils achieve the same coupling factors. This is important as, when embedded in a roadway, a ferrite-less pad could be placed closer of the surface of road since ferrite pads require a thicker protective layer. Finally, a look into the future is given where potential improvements and research direction are discussed to continue improving the systems presented in this work. To summarize the contributions of this thesis, first a "recipe" to develop ferrite-less pads able to produce a single-sided magnetic flux and suitable for WPT charging applications is given. In addition, in the process of developing ferrite-less pads, some unique designs, not known before, were realized - such as the XPAD - which result in higher coupling factors than most known pads to date. Hopefully, the knowledge presented here and the developed coils can aid WPT designers to continue improving the field and bring WPT charging into mainstream in the near future.
