The role of electric vehicles for frequency regulation during grid restoration

2017 ◽  
Author(s):  
Towfiq Rahman ◽  
Zhihua Qu
Keyword(s):  
Electric Vehicles ◽  
Frequency Regulation

scholarly journals V2G Strategy for Primary Frequency Control of an Industrial Microgrid Considering the Charging Station Operator

Electronics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 549 ◽  
Author(s):  
Sheeraz Iqbal ◽  
Ai Xin ◽  
Mishkat Ullah Jan ◽  
Salman Salman ◽  
Atta ul Munim Zaki ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Control Strategies ◽  
Frequency Control ◽  
State Of Charge ◽  
Frequency Regulation ◽  
Vehicle To Grid ◽  
Charging Station ◽  
Primary Frequency ◽  
Primary Frequency Control

Electric vehicles (EVs) have been receiving greater attention as a tool for frequency control due to their fast regulation capability. The proliferation of EVs for primary frequency regulation is hampered by the need to simultaneously maintain industrial microgrids dispatch and EV state of charge levels. The current research aims to examine the operative and dominating role of the charging station operator, along with a vehicle to grid strategy; where, indeterminate tasks are executed in the microgrid without the EVs charging/discharging statistics. The role of the charging station operator in regulation is the assignment of the job inside the primary frequency control capacity of electric vehicles. Real-time rectification of programmed vehicle to grid (V2G) power ensures electric vehicles’ state of charge at the desired levels. The proposed V2G strategy for primary frequency control is validated through the application of a two-area interconnected industrial micro-grid and another microgrids with renewable resources. Regulation specifications are communicated to electric vehicles and charging station operators through an electric vehicle aggregator in the proposed strategy. At the charging station operator, V2G power at the present time is utilized for frequency regulation capacity calculation. Subsequently, the V2G power is dispatched in light of the charging demand and the frequency regulation. Furthermore, V2G control strategies for distribution of regulation requirement to individual EVs are also developed. In summary, the article presents a novel primary frequency control through V2G strategy in an industrial microgrid, involving effective coordination of the charging station operator, EV aggregator, and EV operator.

The Electric Vehicle Development: Experiences Aboard and Enlightenment to China

2014 ◽  
Vol 541-542 ◽  
pp. 1549-1555 ◽  
Author(s):  
Jing Yu Wang ◽  
Ying Qi Liu ◽  
Ari Kokko
Keyword(s):  
Los Angeles ◽  
Electric Vehicles ◽  
User Requirements ◽  
Role Of Government ◽  
City Environment ◽  
Leading Role ◽  
Environment Problem ◽  
New Energy ◽  
New Energy Vehicles

In order to respond to the energy crisis and environment problem, countries carry out their research and promotion about electric vehicles. As the ten cities one thousand new energy buses started in 2009, the new energy vehicles have been greatly developed in China, while the development of electric vehicles is not that good. This paper selects four cities-Los Angeles, Kanagawa, Hamburg, Amsterdam-that promote electric vehicles successfully and deeply analyzes the development of electric vehicles in these four cities and analyzes the factors that affect the development of electric vehicles in three aspects-city environment, government and stakeholders. Then the paper discusses the promotion ways and role of government and consumer. Finally, the paper offers some suggestions to promote electric vehicles in China: focusing on feasibility and adaptability of electric vehicles, playing government`s leading role, improving low-awareness and acceptance of electric vehicles and focusing on user requirements.

scholarly journals The Role of Government in the Market for Electric Vehicles: Evidence from China

2021 ◽  
Author(s):  
Shanjun Li ◽  
Xianglei Zhu ◽  
Yiding Ma ◽  
Fan Zhang ◽  
Hui Zhou
Keyword(s):  
Electric Vehicles ◽  
Role Of Government

Review of Research on Coordinated Charging of Electric Vehicles

2013 ◽  
Vol 860-863 ◽  
pp. 1164-1172 ◽  
Author(s):  
Feng Ni ◽  
Zhi Jian Liu ◽  
Hao Zhang ◽  
Shuo Liu ◽  
Feng Wu
Keyword(s):  
Electric Vehicles ◽  
Peak Shift ◽  
Frequency Regulation ◽  
Time And Space ◽  
Control Effectiveness ◽  
Electric Vehicle Charging ◽  
Electric Car ◽  
New Energy ◽  
Coordinated Charging ◽  
Dual Scale

With the development of technologies of large capacity batteries and electric vehicles, the number of electric-car will increase dramatically. As a result, disorderly charging will cause a significant impact on the safe and economic operation of power system. Charging load has its adjustability on dual scale of time and space. With this feature, load dispatch in both time and space for dual scale is possible which has a positive effect on the operation of power grid. This paper introduces some recent research achievements on orderly charge control, including electric vehicle charging demand characteristics and load model. Explores the orderly charging, especially the control effectiveness of V2G mode on cases of peak-shift, coordinated operation of new energy, frequency regulation and other aspects. Orderly control strategy for electric vehicles is also put forward. Finally, points out the deficiencies of current research and prospects for future.

Power Converters for Hybrid Electric Vehicles

2021 ◽  
pp. 168-192
Author(s):  
M. Nandhini Gayathri
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Power Converters ◽  
Electric Drives ◽  
Battery Chargers ◽  
Harmful Emissions ◽  
Hybrid Electric ◽  
Battery Technology ◽  
Efficiency And Reliability

Hybrid electric vehicles have great potential to reduce fuel consumption and palliate harmful emissions for better population health and climate change. These power trains are essential to meet current emissions legislation, contribute to more environmentally friendly mobility and improve air quality in big cities. In the past two decades, due to the advent growth of modern electric drives, battery technology, and intelligent charging methodology, the overall performance of the electric vehicles have improved. Many research works have been conducted to improve the efficiency and reliability. It increases the applications of electric vehicles. Apart from grid power, the use of renewable sources makes zero-emission rate and zero fuel cost. This chapter deals with the role of power converters in hybrid electric vehicles (PHEVs). It deals with power converters used in hybrid electric vehicles, types of battery chargers, emerging power electronic devices, and thermal management of HEV power electronics, which are presented with the simulation using MATLAB software.

scholarly journals Main Drivers of Battery Industry Changes: Electric Vehicles—A Market Overview

Batteries ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 65 ◽  
Author(s):  
Dmitry Pelegov ◽  
José Pontes
Keyword(s):  
Electric Vehicle ◽  
Transport System ◽  
Electric Vehicles ◽  
Research Society ◽  
Electric Cars ◽  
Environmental Friendly ◽  
Simple Estimation ◽  
Electric Vehicle Adoption ◽  
Battery Industry

The growing popularity of electric vehicles is one of the main drivers of battery industry transformation. Words like “transport system decarbonization”, “electromobility”, and “environmental-friendly society” are very popular today, but questions remain as to how to measure electric vehicles’ adoption progress and how this transition changes the battery industry. This perspective paper provides a review of the electric cars and buses market, estimates the production volumes of some other electric vehicle types, and discusses the role of traction batteries in the global battery market. A simple estimation of the sales rate allows us to evaluate the prospects of electric vehicle adoption in leading countries. Finally, the application of the main battery chemistries is reviewed and topical issues to the research society are addressed and formulated.

scholarly journals Locating Battery Swapping Stations for a Smart e-Bus System

2020 ◽  
Vol 12 (3) ◽  
pp. 1142 ◽  
Author(s):  
Joon Moon ◽  
Young Joo Kim ◽  
Taesu Cheong ◽  
Sang Hwa Song
Keyword(s):  
Integer Programming ◽  
Electric Vehicles ◽  
Metropolitan Area ◽  
Public Transportation ◽  
Set Covering ◽  
Programming Models ◽  
Traffic Network ◽  
Seoul Metropolitan Area ◽  
Model Flow

With the growing interest and popularity of electric vehicles (EVs), the electrification of buses has been progressing recently. To achieve the seamless operation of electric buses (e-Buses) for public transportation, some bus stations should play the role of battery swapping station due to the limited travel range of e-Buses. In this study, we consider the problem of locating battery swapping stations for e-Buses on a passenger bus traffic network. For this purpose, we propose three integer programming models (set-covering-based model, flow-based model and path-based model) to model the problem of minimizing the number of stations needed. The models are applied and tested on the current bus routes in the Seoul metropolitan area of South Korea.

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