- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
[IEEE 2019 IEEE Milan PowerTech - Milan, Italy (2019.6.23-2019.6.27)] 2019 IEEE Milan PowerTech - Stochastic optimization framework for online scheduling of an EV charging station in a residential place with photovoltaics and energy storage system
摘要： House and building energy management systems (HEMS) are becoming key when it comes to assure grid stability and to offer flexibility. At the same time, energy systems technology has evolved to enable energy storage systems and electric vehicles to be managed together with local generated energy taking into consideration the preferences of the household owner. Contributing to this tendency, this work presents a stochastic optimization platform (SOFW) for optimal control using dynamic programming and stochastic optimization models. A stochastic optimization model involving a household composed of photovoltaics, energy storage system and an electric vehicle is designed and tested within SOFW. The uncertainties of the plug-in time and state of charge of the battery of the electric vehicle are modeled using a Markovian process and a Monte-Carlo simulation. The results showed that the proposed stochastic optimization model can be solved using dynamic programming and deployed as a continuous optimal control within SOFW. The system will be deployed shortly in Italy within one use case of the Storage4Grid (S4G) project.
关键词： stochastic dynamic programming,optimization framework,energy storage systems,Markov processes,electric vehicle charging
更新于2025-09-11 14:15:04
-
Design scheme for fast charging station for electric vehicles with distributed photovoltaic power generation
摘要： The demand for fast charging is increasing owing to the rapid expansion of the market for electric vehicles. In addition, the power generation technology for distributed photovoltaic has matured. This paper presents a design scheme for a fast charging station for electric vehicles equipped with distributed photovoltaic power generation system taking the area with certain conditions in Beijing as an example construction site. The technical indexes and equipment lectotype covering the general framework and subsystems of the charging station are determined by analyzing the charging service demand of fast charging stations. In this study, the layout of the station is developed and the operation benefits of the station is analyzed. The design scheme realizes the design objective of “rationalization, modularization and intelligentization” of the fast charging station and can be used as reference for the construction of a fast charging network in urban area.
关键词： Design scheme,Electric vehicle,Charging demand,Distributed photovoltaic,Fast charging station
更新于2025-09-11 14:15:04
-
[IEEE 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) - Chengdu, China (2019.5.21-2019.5.24)] 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) - Robust Reconfiguration of Distribution Network Considering the Access of Photovoltaic Electric Vehicle Charging Tower
摘要： The large-scale application of electric vehicles has led to an increase in the number of charging piles. Charging piles are gradually emerging as charging towers containing new energy sources. The charging load of electric vehicles has brought great uncertainty to the distribution network, and has brought impact to the operation of the distribution network. Considering the uncertainties of charging load of EV, a scene-based multi-period robust reconfiguration model is established in this paper. By defining new variables, the dual transformation process of conventional robust optimization is simplified, and the model is solved by CPLEX solver in GAMS platform. Finally, the effectiveness of the proposed method is verified by an IEEE-33 node example.
关键词： photovoltaic electric vehicle charging tower,second order cone,scenario,robust,distribution network reconfiguration
更新于2025-09-11 14:15:04
-
Nocturnal electric vehicle charging interacting with a residential photovoltaic-battery system: a 3E (energy, economic and environmental) analysis
摘要： Increasing costs of petroleum derivatives, limitations on pollutant emissions and development of photovoltaic (PV) and electrical storage systems make it possible to spread the use of electrically powered vehicles. In this work, a 3E (energy, economic and environmental) feasibility study was carried out regarding an nocturnal electric vehicle (EV) charging in a residential user. In particular, three different EV charging scenarios were considered: use of the grid; use of a grid-connected PV system with a storage battery; use of a grid-connected PV system with a storage battery in the presence also of a residential user. Two sub-scenarios were examined that foresee the purchase of the EV as an alternative to a vehicle powered, respectively, by petrol and diesel. By considering different daily average distances travelled, a parametric study was developed in order to assess the influence of the size of the PV and storage system on the load satisfaction and solar energy utilization, economic convenience and emission savings. In general, it is not possible to simultaneously comply with all the 3E objectives and constraints. However, it is possible to select optimal EV-PV-battery combinations from a unique point of view or those that lead to a trade-off.
关键词： Emission savings,Battery Storage,Photovoltaic,Energy reliability,Electric vehicle,Economic feasibility
更新于2025-09-10 09:29:36
-
Solar electricity production and taxi electrical vehicle conversion in Chile
摘要： Carbon emissions from the Chilean public transport sector have doubled between 2000 and 2013. Thus, the need to find alternative clean-air solutions is becoming increasingly critical. With this in mind, this paper addresses a solution to the aforementioned problem by studying the conversion of both taxis and “colectivos” (public taxis with defined routes) into electric vehicles (EV) to be used in the Chilean public transport sector. In Chile, 80% of taxis are Nissan V16s, meaning that all of these vehicles will be replaced and end up in landfills within the next 5e8 years. This study presents an option to give a second life to these vehicles, addressing environmental and financial issues. It compares emissions from the Nissan V16's conventional internal combustion engine (ICE) with an equivalent electric conversion prototype. Furthermore, it analyses the CO2 emissions from the EV that has been fully charged by the Chilean grid as well as one that has been charged by a solar photovoltaic system. A solar recharging station for EV taxis is designed, taking advantage of the high levels of solar radiation in Chile. The results show that EV conversion does not lead to real environmental benefits, in comparison to its ICE equivalent, when it is charged with the grid. However, the results also show a considerable decrease in cost and CO2 emissions per km travelled when using solar energy to charge the batteries. Future challenges include identifying solutions to cope with solar intermittence and minimizing CO2 emissions during periods of low radiation.
关键词： Public transport,Chile,CO2 emissions,Solar charging station,Electric vehicle
更新于2025-09-10 09:29:36