The Experts below are selected from a list of 1995 Experts worldwide ranked by ideXlab platform
Philip T. Krein - One of the best experts on this subject based on the ideXlab platform.
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Review of battery Charger topologies, charging power levels, and infrastructure for plug-in electric and hybrid vehicles
IEEE Transactions on Power Electronics, 2013Co-Authors: Murat Yilmaz, Philip T. KreinAbstract:This paper reviews the current status and implemen- tation of battery Chargers, charging power levels, and infrastruc- ture for plug-in electric vehicles and hybrids. Charger systems are categorized into off-Board and on-board types with unidirec- tional or bidirectional power flow. Unidirectional charging limits hardware requirements and simplifies interconnection issues.Bidi- rectional charging supports battery energy injection back to the grid. Typical on-board Chargers restrict power because of weight, space, and cost constraints. They can be integrated with the elec- tric drive to avoid these problems. The availability of charging infrastructure reduces on-board energy storage requirements and costs. On-board Charger systems can be conductive or inductive. An off-Board Charger can be designed for high charging rates and is less constrained by size and weight. Level 1 (convenience),Level 2 (primary), and Level 3 (fast) power levels are discussed. Future as- pects such as roadbed charging are presented. Various power level Chargers and infrastructure configurations are presented, com- pared, and evaluated based on amount of power, charging time and location, cost, equipment, and other factors.
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Review of charging power levels and infrastructure for plug-in electric and hybrid vehicles
2012 IEEE International Electric Vehicle Conference, 2012Co-Authors: Murat Yilmaz, Philip T. KreinAbstract:This paper reviews the current status and implementation of battery Chargers, charging power levels and infrastructure for plug-in electric vehicles and hybrids. Battery performance depends both on types and design of the batteries, and on Charger characteristics and charging infrastructure. Charger systems are categorized into off-Board and on-board types with unidirectional or bidirectional power flow. Unidirectional charging limits hardware requirements and simplifies interconnection issues. Bidirectional charging supports battery energy injection back to the grid. Typical onboard Chargers restrict the power because of weight, space and cost constraints. They can be integrated with the electric drive for avoiding these problems. The availability of a charging infrastructure reduces on-board energy storage requirements and costs. On-board Charger systems can be conductive or inductive. While conductive Chargers use direct contact, inductive Chargers transfer power magnetically. An off-Board Charger can be designed for high charging rates and is less constrained by size and weight. Level 1 (convenience), Level 2 (primary), and Level 3 (fast) power levels are discussed. These system configurations vary from country to country depending on the source and plug capacity standards. Various power level Chargers and infrastructure configurations are presented, compared, and evaluated based on amount of power, charging time and location, cost, equipment, effect on the grid, and other factors.
Murat Yilmaz - One of the best experts on this subject based on the ideXlab platform.
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Review of battery Charger topologies, charging power levels, and infrastructure for plug-in electric and hybrid vehicles
IEEE Transactions on Power Electronics, 2013Co-Authors: Murat Yilmaz, Philip T. KreinAbstract:This paper reviews the current status and implemen- tation of battery Chargers, charging power levels, and infrastruc- ture for plug-in electric vehicles and hybrids. Charger systems are categorized into off-Board and on-board types with unidirec- tional or bidirectional power flow. Unidirectional charging limits hardware requirements and simplifies interconnection issues.Bidi- rectional charging supports battery energy injection back to the grid. Typical on-board Chargers restrict power because of weight, space, and cost constraints. They can be integrated with the elec- tric drive to avoid these problems. The availability of charging infrastructure reduces on-board energy storage requirements and costs. On-board Charger systems can be conductive or inductive. An off-Board Charger can be designed for high charging rates and is less constrained by size and weight. Level 1 (convenience),Level 2 (primary), and Level 3 (fast) power levels are discussed. Future as- pects such as roadbed charging are presented. Various power level Chargers and infrastructure configurations are presented, com- pared, and evaluated based on amount of power, charging time and location, cost, equipment, and other factors.
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Review of charging power levels and infrastructure for plug-in electric and hybrid vehicles
2012 IEEE International Electric Vehicle Conference, 2012Co-Authors: Murat Yilmaz, Philip T. KreinAbstract:This paper reviews the current status and implementation of battery Chargers, charging power levels and infrastructure for plug-in electric vehicles and hybrids. Battery performance depends both on types and design of the batteries, and on Charger characteristics and charging infrastructure. Charger systems are categorized into off-Board and on-board types with unidirectional or bidirectional power flow. Unidirectional charging limits hardware requirements and simplifies interconnection issues. Bidirectional charging supports battery energy injection back to the grid. Typical onboard Chargers restrict the power because of weight, space and cost constraints. They can be integrated with the electric drive for avoiding these problems. The availability of a charging infrastructure reduces on-board energy storage requirements and costs. On-board Charger systems can be conductive or inductive. While conductive Chargers use direct contact, inductive Chargers transfer power magnetically. An off-Board Charger can be designed for high charging rates and is less constrained by size and weight. Level 1 (convenience), Level 2 (primary), and Level 3 (fast) power levels are discussed. These system configurations vary from country to country depending on the source and plug capacity standards. Various power level Chargers and infrastructure configurations are presented, compared, and evaluated based on amount of power, charging time and location, cost, equipment, effect on the grid, and other factors.
Bhim Singh - One of the best experts on this subject based on the ideXlab platform.
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multi objective reconfigurable three phase off board Charger for ev
IEEE Transactions on Industry Applications, 2019Co-Authors: Anjeet Verma, Bhim SinghAbstract:This paper deals with the control and implementation of solar photovoltaic (PV) array-based multi-objective bi-directional Charger beneficial for electric vehicle (EV), household load, and utility. For EV, the Charger provides the charging facility. For household load, the Charger acts as a standalone inverter, and for utility the Charger acts as an active power filter. However, for providing the multi-functionality and the multi-mode operation capability of the Charger, a reconfigurable control strategy is proposed. Moreover, an adaptive dc-link voltage strategy is proposed for achieving the optimum voltage at dc link under all voltage conditions for achieving minimum ripple in grid currents. The Charger also uses a voltage synchronization strategy for achieving the seamless mode transition between the grid-connected and standalone modes. In grid-connected mode, the Charger uses a double second-order generalized integrator-based positive sequence estimator along with the improved linear sinusoidal tracer-based algorithm for generating the balanced and sinusoidal reference grid currents, under the unbalanced and distorted grid voltages. The Charger is implemented in the laboratory, and the performance is presented under various steady-state and dynamic conditions.
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multi objective reconfigurable three phase off board Charger for ev
2017 IEEE Transportation Electrification Conference (ITEC-India), 2017Co-Authors: Anjeet Verma, Bhim SinghAbstract:In this paper, a three phase off-Board Charger is proposed that has a bi-directional flow of active power. The Charger uses both solar photo voltaic (PV) array and grid energy to charge the electric vehicle (EV) battery. Moreover, the Charger also feeds the solar PV array and battery energy into the grid. To achieve this, the Charger has a provision to act as a standalone generator to generate the sinusoidal voltage of reference amplitude and frequency. In case of grid outage, unavailability of solar PV generation, the Charger feeds household loads. It acts as an uninterruptible power supply (UPS) and has the capability to synchronize with the grid voltage on grid restoration and maintains the uninterruptible power supply to the load. While feeding the nonlinear loads an improved linear sinusoidal tracer (ILST) algorithm is used to estimate the fundamental current component of load current, so that the current drawn from the grid is always sinusoidal and at unity power factor (UPF). The controller is designed to extract the maximum power in all operating conditions. Moreover, the controller is designed such that it takes the decision of power flow among the different energy sources based on the demand. The Charger is designed for a three phase 230V (rms) line, 50 Hz supply. The Charger performance is analyzed in various dynamic conditions.
Anjeet Verma - One of the best experts on this subject based on the ideXlab platform.
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multi objective reconfigurable three phase off board Charger for ev
IEEE Transactions on Industry Applications, 2019Co-Authors: Anjeet Verma, Bhim SinghAbstract:This paper deals with the control and implementation of solar photovoltaic (PV) array-based multi-objective bi-directional Charger beneficial for electric vehicle (EV), household load, and utility. For EV, the Charger provides the charging facility. For household load, the Charger acts as a standalone inverter, and for utility the Charger acts as an active power filter. However, for providing the multi-functionality and the multi-mode operation capability of the Charger, a reconfigurable control strategy is proposed. Moreover, an adaptive dc-link voltage strategy is proposed for achieving the optimum voltage at dc link under all voltage conditions for achieving minimum ripple in grid currents. The Charger also uses a voltage synchronization strategy for achieving the seamless mode transition between the grid-connected and standalone modes. In grid-connected mode, the Charger uses a double second-order generalized integrator-based positive sequence estimator along with the improved linear sinusoidal tracer-based algorithm for generating the balanced and sinusoidal reference grid currents, under the unbalanced and distorted grid voltages. The Charger is implemented in the laboratory, and the performance is presented under various steady-state and dynamic conditions.
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multi objective reconfigurable three phase off board Charger for ev
2017 IEEE Transportation Electrification Conference (ITEC-India), 2017Co-Authors: Anjeet Verma, Bhim SinghAbstract:In this paper, a three phase off-Board Charger is proposed that has a bi-directional flow of active power. The Charger uses both solar photo voltaic (PV) array and grid energy to charge the electric vehicle (EV) battery. Moreover, the Charger also feeds the solar PV array and battery energy into the grid. To achieve this, the Charger has a provision to act as a standalone generator to generate the sinusoidal voltage of reference amplitude and frequency. In case of grid outage, unavailability of solar PV generation, the Charger feeds household loads. It acts as an uninterruptible power supply (UPS) and has the capability to synchronize with the grid voltage on grid restoration and maintains the uninterruptible power supply to the load. While feeding the nonlinear loads an improved linear sinusoidal tracer (ILST) algorithm is used to estimate the fundamental current component of load current, so that the current drawn from the grid is always sinusoidal and at unity power factor (UPF). The controller is designed to extract the maximum power in all operating conditions. Moreover, the controller is designed such that it takes the decision of power flow among the different energy sources based on the demand. The Charger is designed for a three phase 230V (rms) line, 50 Hz supply. The Charger performance is analyzed in various dynamic conditions.
Cesar Leonardo Trujillo - One of the best experts on this subject based on the ideXlab platform.
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Development of a high performance batteries Charger with low THD, high power factor, and high efficiency
Universidad Nacional de Colombia, 2018Co-Authors: Johan Sebastian Sanchez-choachi, Miguel Ángel Dávila, Cesar Leonardo TrujilloAbstract:This paper presents the design, simulation, and implementation of an off-Board Charger of medium and low capacity batteries that incorporates a power factor corrector, reaches a low THD current with the advantage of providing higher robustness against network frequency variations, and allows the implementation of three different charging strategies. On the one hand, this Charger consists of a galvanic isolation stage, followed by a bridge rectifier connected to a Boost converter, which regulates the power factor and THD. On the other hand, a Buck converter cascaded with the Boost serves as a current or voltage source, depending on the operating charging strategy. Subsequently, results obtained in the testing phase are presented, placing great emphasis on obtaining a power factor of 0.978 and a THD of 5.7%, which are compared to standard IEC 61000-3-2. Finally, the efficiency of the prototype, which reaches a maximum of 91.1%, is evaluated; conclusions are therefore presented
