Accelerated environmental impacts are a growing concern in the modern world. Electric mobility and the transition to a cleaner energy matrix have become increasingly discussed topics. In this context, this work presents a framework for controlling an electric vehicle (EV)-charging station integrated into a microgrid application as a basis for creating the infrastructure integrated into a smart grid concept. Considering the electrification of the transportation sector future perspectives, a brief review is conducted on the impacts of EV fleet growth in different countries and how smart-charging technologies are identified as solutions for mitigating the negative effects of energy and power consumption associated with EV-charging stations. An analysis of the technical characteristics and the tools that enable the deployment of a fleet-charging operator are examined, specifically focusing on the communication protocol for EVs, such as the OCPP (Open Charge Point Protocol) parameterization/configuration. A new EV-charging station control method is proposed to manage the impacts of distributed solar photovoltaic generation and mitigate the effects of the duck curve. Finally, an integration architecture via IEC 61850 for these elements is proposed, in a practical implementation for variable power control, considering different strategies to deal with distributed generation impact using EV-fleet-charging power demand dynamic management.
The development of electronic design evolves every day. The adequate selection of electronic components is at the heart of a project's success. Therefore, it is necessary to make a preliminary study of the characteristics of the components to be used in order to select the most appropriate ones for each application. For a smart plug project, an essential part is the current measurement system where the transducer represents a critical component. In this context, this paper makes a comparative study among three current transducer technologies: hall effect sensor, current transformer (CT) and shunt resistor. The applied current was measured by conducting a test using an existing sensor available on the market for each technology. In addition, a comparative analysis of the characteristics of the transducers was carried out and for some transducers both qualitative and quantitative analysis were undertaken. Finally, a multicriteria technique is used in the selection of transducers, taking into consideration the weight defined for each criteria in the project, using the mathematical process ROC (Rank Order Centroid). From the analysis, we can state that the hall effect sensor presents the best results when compared to the other transducers.
Accelerated environmental impacts are a growing concern in the modern world. As a result, electric mobility and the transition to a cleaner energy matrix have become increasingly discussed topics. Several countries and entities have already made medium and long-term commitments related to electric mobility. In this context, this work presents a framework for controlling an electric vehicle (EV) charging station, integrated into a microgrid application, as a basis for creating the infrastructure integrated into a smart grid concept. Considering the future perspectives associated with the electrification of the transportation sector and expected impacts, a brief review is conducted on the prospects for the growth of electric vehicle fleets in different countries and how smart charging technologies are identified as solutions for mitigating the negative effects of energy and power consumption associated with EV charging stations. An analysis of the technical characteristics of EV charging is carried out, and the tools that enable the deployment of a fleet charging operator are examined specifically focusing on the communication protocol for EVs, such as the OCPP (Open Charge Point Protocol) parameterization/configuration. Additionally, a new charging station control method is proposed, aiming to manage the impacts of integrating distributed solar photovoltaic generation and mitigate the effects of the duck curve. Finally, this work also proposes an integration architecture for these elements, resulting in a practical implementation for variable power control throughout the day, considering different strategies to deal with distributed generation impact using EV fleet charging power demand dynamic management. Finally, a proposal for integration via IEC 61850 using low-cost devices for the implementation of a digital communication system is presented.