scholarly journals Joint planning of electric vehicle charging station and distributed generation on location and capacity

2021 ◽  
Vol 252 ◽  
pp. 01040
Author(s):  
Peiwen Wang ◽  
Jin Shen
Keyword(s):  
Power Generation ◽  
Electric Vehicle ◽  
Distributed Generation ◽  
Distribution System ◽  
Widespread Application ◽  
Electric Vehicle Charging ◽  
Grasshopper Optimization Algorithm ◽  
Network Losses ◽  
Vehicle Charging ◽  
Charging Stations

The widespread application of distributed generation and electric vehicles are two important ways to save energy and reduce emissions. Therefore, the location and capacity of distributed generation and electric vehicle charging stations are particularly important. From the perspective of environmental protection, distributed power generation has obvious advantages over traditional power generation methods. Based on this, this paper establishes a model of location and capacity of electric vehicle charging stations with distributed generation with the lowest sum of investment, operation and maintenance costs, network losses and environmental costs. And this paper uses the Grasshopper Optimization Algorithm to solve the model. Finally, the IEEE 33-node distribution system is used as an example to perform calculations to verify the effectiveness and feasibility of the proposed model and algorithm.

scholarly journals Energy Management System Optimization of Drug Store Electric Vehicles Charging Station Operation

2021 ◽  
Vol 13 (11) ◽  
pp. 6163
Author(s):  
Yongyi Huang ◽  
Atsushi Yona ◽  
Hiroshi Takahashi ◽  
Ashraf Mohamed Hemeida ◽  
Paras Mandal ◽  
...  
Keyword(s):  
Power Generation ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
System Optimization ◽  
Mixed Integer ◽  
Charging Station ◽  
Electric Vehicle Charging ◽  
Photovoltaic Power ◽  
Vehicle Charging ◽  
Charging Stations

Electric vehicle charging station have become an urgent need in many communities around the world, due to the increase of using electric vehicles over conventional vehicles. In addition, establishment of charging stations, and the grid impact of household photovoltaic power generation would reduce the feed-in tariff. These two factors are considered to propose setting up charging stations at convenience stores, which would enable the electric energy to be shared between locations. Charging stations could collect excess photovoltaic energy from homes and market it to electric vehicles. This article examines vehicle travel time, basic household energy demand, and the electricity consumption status of Okinawa city as a whole to model the operation of an electric vehicle charging station for a year. The entire program is optimized using MATLAB mixed integer linear programming (MILP) toolbox. The findings demonstrate that a profit could be achieved under the principle of ensuring the charging station’s stable service. Household photovoltaic power generation and electric vehicles are highly dependent on energy sharing between regions. The convenience store charging station service strategy suggested gives a solution to the future issues.

scholarly journals Sparse Measurement-Based Coordination of Electric Vehicle Charging Stations to Manage Congestions in Low Voltage Grids

Smart Cities ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 17-40
Author(s):  
Daniel-Leon Schultis
Keyword(s):  
Electric Vehicle ◽  
Distribution System ◽  
Low Voltage ◽  
Congestion Management ◽  
Load Flow ◽  
Detection Accuracy ◽  
System State ◽  
Electric Vehicle Charging ◽  
Vehicle Charging ◽  
Charging Stations

The increasing use of distributed generation and electric vehicle charging stations provokes violations of the operational limits in low voltage grids. The mitigation of voltage limit violations is addressed by Volt/var control strategies, while thermal overload is avoided by using congestion management. Congestions in low voltage grids can be managed by coordinating the active power contributions of the connected elements. As a prerequisite, the system state must be carefully observed. This study presents and investigates a method for the sparse measurement-based detection of feeder congestions that bypasses the major hurdles of distribution system state estimation. Furthermore, the developed method is used to enable congestion management by the centralized coordination of the distributed electric vehicle charging stations. Different algorithms are presented and tested by conducting load flow simulations on a real urban low voltage grid for several scenarios. Results show that the proposed method reliably detects all congestions, but in some cases, overloads are detected when none are present. A minimal detection accuracy of 73.07% is found across all simulations. The coordination algorithms react to detected congestions by reducing the power consumption of the corresponding charging stations. When properly designed, this strategy avoids congestions reliably but conservatively. Unnecessary reduction of the charging power may occur. In total, the presented solution offers an acceptable performance while requiring low implementation effort; no complex adaptations are required after grid reinforcement and expansion.

Use of municipal real estate for the construction of public electric vehicle charging stations – legal and economic issues

2020 ◽  
Vol III (III) ◽  
pp. 7-21
Author(s):  
Wojciech Drożdż ◽  
Maciej Szmigiero ◽  
Jakub Dowejko
Keyword(s):  
Real Estate ◽  
Electric Vehicle ◽  
Power Distribution ◽  
Distribution System ◽  
Local Governments ◽  
Smart Cities ◽  
Power Distribution System ◽  
Electric Vehicle Charging ◽  
Vehicle Charging ◽  
Charging Stations

The development of electromobility is part of a broader trend of building smart cities, in which power distribution system operators actively participate. The fact that the legislator has delegated part of the tasks related to the construction of electric vehicle charging infrastructure to these entities should also mean equipping them with legal mechanisms for the implementation of public objectives, including those based on the provisions of the Real Estate Management Act. However, due to the imperfection of the regulations, these entities do not have the tools to preferentially purchase real estate for the development of charging stations, and the local governments lack the basis for making donations for this purpose. However, distribution system operators together with local authorities are natural partners in promoting electromobility in cities.

Sign in / Sign up

Export Citation Format

Share Document