PV Integrated Smart Charging of PHEVs Based on DC Link Voltage Sensing

Goli, Preetham; Shireen, Wajiha

doi:10.1109/tsg.2013.2286745

Cited by 80 publications

(33 citation statements)

References 12 publications

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“…4 [6], [7], [32], [26]. It has three sub-converters connected via a DC link: a DC-DC converter for PV, a DC-DC isolated converter for EV and a DC-AC inverter to connect to the AC grid.…”

Section: B Integrated Ev-pv Power Converter With DC Chargingmentioning

confidence: 99%

Future of electric vehicle charging

Mouli

Venugopal

Bauer

2017

2017 International Symposium on Power Electronics (Ee)

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Abstract-Charging infrastructure for electric vehicles (EV) will be the key factor for ensuring a smooth transition to emobility. This paper focuses on five technologies that will play a fundamental role in this regard: smart charging, vehicle-to-grid (V2G), charging of EVs from photovoltaic panels (PV), contactless charging and on-road charging of EVs. Smart charging of EVs is expected to enable larger penetration of EVs and renewable energy, lower the charging cost and offer better utilization of the grid infrastructure. Bidirectional EV chargers will pave the way for V2G technology where the EV can be used for energy arbitrage and demand-side management. Solar charging of EV will result in sustainable transportation and use of the EV battery as PV storage. On the other hand, stationary contactless charging and on-road inductive charging of EV will remove the necessity for any cables, eliminate range anxiety issues and pave the way for automated driving. The electromagnetic and power converter design for contactless power transfer systems for future highways is reviewed in this paper.

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“…4 [6], [7], [32], [26]. It has three sub-converters connected via a DC link: a DC-DC converter for PV, a DC-DC isolated converter for EV and a DC-AC inverter to connect to the AC grid.…”

Section: B Integrated Ev-pv Power Converter With DC Chargingmentioning

confidence: 99%

Future of electric vehicle charging

Mouli

Venugopal

Bauer

2017

2017 International Symposium on Power Electronics (Ee)

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“…Considering (9), by increasing the RES penetration, the current flow through the line decreases and the measured impedance will be increased. According to the distance relay literature and the result of this section, it is shown that the fault zone is completely different than normal operation of measured impedance.…”

Section: F Investigating the Measured Impedance Trends During Faultmentioning

confidence: 99%

“…[4] analyze high PV penetration impacts on distribution system protection and operation. Using flexible ac transmission system and custom power devices (static VAR compensator (SVC) [5], static synchronous compensator (STATCOM) [6], distribution STATCOM (DSTATCOM) [7], superconducting magnetic energy storage (SMES) [8]), utilizing electric vehicle [9], storage system [10]- [12], and active power curtailment technique recommended in [13]- [15] are the most attractive techniques to mitigate those expected voltage violations.…”

mentioning

confidence: 99%

A Monitoring Technique for Reversed Power Flow Detection With High PV Penetration Level

Mortazavi

Mehrjerdi

Saad

et al. 2015

IEEE Trans. Smart Grid

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Abstract-Theintegration of renewable energy resources (RESs) in power systems poses many research challenges. Research shows that the RES output may exceed the consumed power during the day. Consequently, the direction of the power flow on distribution lines can be reversed during some periods. As the voltage regulator is normally designed for unidirectional power flow, this may cause voltage violations on the distribution feeder. Therefore, most utilities try to set a penetration level (PL) limit for safe operation. On the other hand, time varying and unbalanced loading are the main characteristics of distribution systems. Moreover installation of intermittent and nondispatchable photovoltaic (PV) devices increases the control problems of distribution system. This paper presents an impedance-based monitoring method for detection of distribution system current behavior. It will be shown that by utilizing this monitoring technique, not only the small variation of PV PL can be easily detected, but also some fast transients such as the effect of cloud movement on PV system can be monitored. This monitoring technique employs only local measurements of bus voltages and line current to measure the apparent impedance seen at the installation point. The practical application of measured impedance as a monitoring technique shows its effectiveness for distribution system monitoring in presence of various PV PL.

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“…In [23] the charging of the PEVs is controlled in order to eliminate or reduce the stress on the grid but the impact of energy efficiency and the grid power limitation for injection mode are not discussed. In this case the PV system is connected to the DC link by employing a DC/DC boost converter.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of DC Microgrids for Electric Vehicle Charging Stations

Locment

Sechilariu

2015

Energies

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This paper focuses on the evaluation of theoretical and numerical aspects related to an original DC microgrid power architecture for efficient charging of plug-in electric vehicles (PEVs). The proposed DC microgrid is based on photovoltaic array (PVA) generation, electrochemical storage, and grid connection; it is assumed that PEVs have a direct access to their DC charger input. As opposed to conventional power architecture designs, the PVA is coupled directly on the DC link without a static converter, which implies no DC voltage stabilization, increasing energy efficiency, and reducing control complexity. Based on a real-time rule-based algorithm, the proposed power management allows self-consumption according to PVA power production and storage constraints, and the public grid is seen only as back-up. The first phase of modeling aims to evaluate the main energy flows within the proposed DC microgrid architecture and to identify the control structure and the power management strategies. For this, an original model is obtained by applying the Energetic Macroscopic Representation formalism, which allows deducing the control design using Maximum Control Structure. The second phase of simulation is based on the numerical characterization of the DC microgrid components and the energy management strategies, which consider the power source requirements, charging times of different PEVs, electrochemical storage ageing, and grid power limitations for injection mode. The simulation results show the validity of the model and the feasibility of the proposed DC microgrid power architecture which presents good performance in terms of total efficiency and simplified control. OPEN ACCESSEnergies 2015, 8 4336

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PV Integrated Smart Charging of PHEVs Based on DC Link Voltage Sensing

Cited by 80 publications

References 12 publications

Future of electric vehicle charging

Future of electric vehicle charging

A Monitoring Technique for Reversed Power Flow Detection With High PV Penetration Level

Modeling and Simulation of DC Microgrids for Electric Vehicle Charging Stations

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