scholarly journals Smart charging of electric vehicles with photovoltaic power and vehicle-to-grid technology in a microgrid; a case study

2015 ◽  
Vol 152 ◽  
pp. 20-30 ◽  
Author(s):  
Mart van der Kam ◽  
Wilfried van Sark
Keyword(s):  
Electric Vehicles ◽  
Grid Technology ◽  
Vehicle To Grid ◽  
Photovoltaic Power ◽  
Smart Charging

scholarly journals A New Methodology for the Optimal Charging Coordination of Electric Vehicles Considering Vehicle-to-Grid Technology

2016 ◽  
Vol 7 (2) ◽  
pp. 596-607 ◽  
Author(s):  
Carlos Sabillon Antunez ◽  
John F. Franco ◽  
Marcos J. Rider ◽  
Ruben Romero
Keyword(s):  
Electric Vehicles ◽  
Grid Technology ◽  
Vehicle To Grid

Forecasting the future scale of vehicle to grid technology for electric vehicles and its economic value as future electric energy source: The case of South Korea

2020 ◽  
Vol 31 (8) ◽  
pp. 1350-1366 ◽  
Author(s):  
Keumju Lim ◽  
Justine Jihyun Kim ◽  
Jongsu Lee
Keyword(s):  
South Korea ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Economic Benefit ◽  
Consumer Preferences ◽  
Electric Energy ◽  
Power Market ◽  
Grid Technology ◽  
Vehicle To Grid ◽  
Vehicle Purchase

With the world seeking ways to cope with climate change, the interest in and demand for electric vehicles are increasing as part of the efforts to resolve the issue of fine dust, especially in South Korea. The Korean government has consistently announced plans to promote electric vehicles as a means of transportation by providing benefits such as subsidies for electric vehicle purchase and expansion of charging infrastructure. Meanwhile, as electric vehicles continue to grow in number, the energy industry has become attentive to its role as a resource for power generation through vehicle to grid technology. This study analyzes electric vehicle consumer preferences using the discrete choice experiment (DCE) and found that there exists a clear nested structure in Korean consumers’ choice of vehicle. The study also estimates the amount of vehicle to grid electricity supply in the power market and calculates not only national but also individual economic benefit of electric vehicle owners participating in vehicle to grid services based on the estimated amount of electricity supplied. The results of scenario analysis indicate that the estimated electric vehicle supply in Korea will be about 560,000 units cumulatively and that the vehicle to grid electric vehicle power supply scale will reach 1.81 GW by 2030. The estimation shows that the economic benefit of vehicle to grid at the national power market level is 50.9 billion KRW per year, while the economic benefit at an individual level (per vehicle) is 104,151 KRW.

scholarly journals Optimal Frequency Regulation V2G Control with DOD of EV Battery

2019 ◽  
Vol 8 (2S6) ◽  
pp. 75-78
Keyword(s):  
Electric Vehicles ◽  
Cycle Life ◽  
Frequency Regulation ◽  
Optimal Frequency ◽  
Peak Shaving ◽  
Vehicle To Grid ◽  
Depth Of Discharge ◽  
Number Of Discharges ◽  
High Depth

As the proportion of electric vehicles increases, interest in Vehicle to Grid (V2G) service is increasing. Many studies are underway to use V2G for peak shaving and frequency regulation in power system. However, V2G can shorten battery cycle life for electric vehicle (EV) which is the most variable part in EV. Hence battery cycle life should be considered in V2G service. As well as the number of discharges, depth of discharge (DOD) also highly affects battery cycle life. High depth of discharge reduces the cycle life of the EV battery exponentially. However, conventional droop control, which has been used for frequency regulation, controls the active power linearly without regard to the DOD. This paper proposes an optimal frequency regulation V2G control which considers the DOD of EV. Proposed method uniformly distributes the discharge for V2G. Therefore battery cycle life is preserved and inconvenience of EV owner from discharge is reduced. The case study result demonstrates the advantages of the proposed method over the conventional droop method. Battery cycle life of entire EV is preserved and energy consumption under V2G is uniformly distributed.

scholarly journals Performance Evaluation of Single-Phase On-Board Charger with Advanced Controller

2021 ◽  
Vol 9 (8) ◽  
pp. 1280-1286
Author(s):  
Mr. Akshay A. Khandare
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Control Strategy ◽  
Power Grid ◽  
Pi Controller ◽  
Grid Technology ◽  
Battery Charger ◽  
Vehicle To Grid ◽  
Electric Vehicle Battery ◽  
Control Topology

Abstract: The increasing mobility of electric vehicles has inspired vehicle growth to power grid technology. Such as vehicle to grid technology allows to transfer the power from the electric vehicle battery to the power grid. This enable speak load shaving, load leveling, voltage regulation, and improved stability of the power system. To develop the vehicle to grid technology requires a specialized EV battery charger, which permits the bi-directional energy transfer between the power grid and the electric vehicle battery. There is a specific control strategy used for a bi-directional battery charger. The proposed control strategy is used for charge and discharge battery of EV. The charger strategy has two parts: 1) Bidirectional AC-DC Converter in two-way Communication System. 2) Bidirectional DC-DC Buck-Boost Converter. There are two modes of operation for a bidirectional ac-dc converter: for G2V, rectifying mode is used, and for V2G, inverter mode is used. The suggested charge strategy not only allows for two-directional power flow but also provides power quality management of the power grid. Fuzzy logic controller (FLC) transforms linguistic control topology evaluations knowledge into an automated control topology using FLC. The FLC is more stable, has less overshoot, and responds quickly. The operation of a standard PI controller and a FLC was compared in this study using MATLAB and Simulink, and different time domain characteristics were compared as toshow that the FLC had a smaller overshoot and a faster response than the PI controller. Keywords: Bi-directional AC-DC converter, bi-directional DC-DC Buck-Boost converter, electric vehicles (EVs), on-board battery charger (OBC), grid to vehicle (G2V), vehicle to grid (V2G).

Combining photovoltaic energy with electric vehicles, smart charging and vehicle-to-grid

Solar Energy ◽  
2014 ◽  
Vol 110 ◽  
pp. 438-451 ◽  
Author(s):  
Fabrizio Fattori ◽  
Norma Anglani ◽  
Giuseppe Muliere
Keyword(s):  
Electric Vehicles ◽  
Vehicle To Grid ◽  
Photovoltaic Energy ◽  
Smart Charging
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