Robust design of off-grid solar-powered charging station for hydrogen and electric vehicles via robust optimization approach

Problem. Development and implementation of green technologies is both an urgent and a cost-effective scientific and engineering task. Therefore, the issues related to the study of renewable energy sources, which are used as the main sources of energy for electric vehicles, are quite relevant and promising. At the same time, an equally important question is how profitable is building solar charging stations in terms of both ecology and economy. Goal. The aim is calculation and analysis of technical and economic indicators of a solar charging station for electric vehicles (EV). Methodology. The analytical methods of studying the development and application of the ways and devices to transform the energy of the sun into electricity are used, as well as the methods of experimental research and mathematical methods of processing and modulation of the received results; methods of calculating technical and economic indicators. Results. The review of the literature on the development of renewable energy sources, in particular, solar power plants, and the spread of electric vehicles with the gradual displacement (replacement) of traditional cars working on internal combustion engines with electric vehicles (BEV and PHEV) was made. The main parameters and technical characteristics of the solar-powered charging station (SPCS) were studied. For the analysis and calculation of technical and economic indicators of SPCS for EV it is offered to take a SPP with a capacity of 20 kW as a basis. The calculation of SPCS electricity generation both for own consumption and for power supply of EV and the sale of surplus electricity to the general network at the “green tariff” was carried out. Originality. The technical and economic calculation of SCS was made taking into account the rise of electricity prices in Kharkiv region (Ukraine). Practical value. According to the analysis of the obtained results, it can be said that the payback period of SPCS for EV is about 7.9 years. If we consider the constant increase in the cost of electricity (approximately 15% per year), we can expect the payback after 6.8 years of operation.

Download Full-text

Sustainable E-Bike Charging Station That Enables AC, DC and Wireless Charging from Solar Energy

Energies ◽

10.3390/en13143549 ◽

2020 ◽

Vol 13 (14) ◽

pp. 3549 ◽

Cited By ~ 1

Author(s):

Gautham Ram Chandra Mouli ◽

Peter Van Duijsen ◽

Francesca Grazian ◽

Ajay Jamodkar ◽

Pavol Bauer ◽

...

Keyword(s):

Solar Energy ◽

Wind Energy ◽

Electric Vehicles ◽

Wireless Charging ◽

Inductive Power Transfer ◽

Photovoltaic Panels ◽

Charging Station ◽

Dc Power ◽

Solar Powered ◽

Grid Operation

If electric vehicles have to be truly sustainable, it is essential to charge them from sustainable sources of electricity, such as solar or wind energy. In this paper, the design of solar powered e-bike charging station that provides AC, DC and wireless charging of e-bikes is investigated. The charging station has integrated battery storage that enables for both grid-connected and off-grid operation. The DC charging uses the DC power from the photovoltaic panels directly for charging the e-bike battery without the use of an AC charging adapter. For the wireless charging, the e-bike can be charged through inductive power transfer via the bike kickstand (receiver) and a specially designed tile (transmitter) at the charging station, which provides maximum convenience to the user.

Download Full-text

How to compare performance of robust design optimization algorithms, including a novel method

Artificial intelligence for engineering design analysis and manufacturing ◽

10.1017/s089006041700018x ◽

2017 ◽

Vol 31 (3) ◽

pp. 286-297 ◽

Cited By ~ 2

Author(s):

Johan A. Persson ◽

Johan Ölvander

Keyword(s):

Robust Optimization ◽

Design Optimization ◽

Robust Design ◽

Performance Metrics ◽

Computational Cost ◽

Optimization Method ◽

Engineering Problem ◽

Robust Design Optimization ◽

Optimization Approach ◽

Novel Method

AbstractThis paper proposes a method to compare the performances of different methods for robust design optimization of computationally demanding models. Its intended usage is to help the engineer to choose the optimization approach when faced with a robust optimization problem. This paper demonstrates the usage of the method to find the most appropriate robust design optimization method to solve an engineering problem. Five robust design optimization methods, including a novel method, are compared in the demonstration of the comparison method. Four of the five compared methods involve surrogate models to reduce the computational cost of performing robust design optimization. The five methods are used to optimize several mathematical functions that should be similar to the engineering problem. The methods are then used to optimize the engineering problem to confirm that the most suitable optimization method was identified. The performance metrics used are the mean value and standard deviation of the robust optimum as well as an index that combines the required number of simulations of the original model with the accuracy of the obtained solution. These measures represent the accuracy, robustness, and efficiency of the compared methods. The results of the comparison show that sequential robust optimization is the method with the best balance between accuracy and number of function evaluations. This is confirmed by the optimizations of the engineering problem. The comparison also shows that the novel method is better than its predecessor is.

Download Full-text

Solar Powered Electric Vehicle Charging Station

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.37016 ◽

2021 ◽

Vol 9 (VIII) ◽

pp. 937-941

Author(s):

Sagar B C

Keyword(s):

Solar Energy ◽

Electric Vehicle ◽

Electric Vehicles ◽

Power Plants ◽

Charging Station ◽

Electric Vehicle Charging ◽

Working Solution ◽

Solar Power Plants ◽

Vehicle Charging ◽

Solar Powered

While electric vehicles are generally seen as clean vehicles, they are not completely clean because the production of electricity might generate emissions as well. This paper on a solar powered electric vehicle charging station is a working solution to close the gap in achieving a truly renewable and clean vehicle. The currently scenario of today solar energy ecosystem is that, it is highly unstructured and localized. There are about 50 solar power plants in India but none of them are connect in a manner that there would be a method to perform analytical analysis of the solar energy produced. This paper aims to finding a possible method to connect the solar powered electric vehicle charging station and to perform analytical operations to increase efficiency of Solar Energy.

Download Full-text