A back-end protocol refers to communication standards and protocols for enabling connectivity between an electric vehicle (EV) charging station and the central management system (CMS). We previously discussed front-end protocols between the EV and … [Read more...]
How is a dc-based architecture useful for EV charging infrastructure?
This article introduces dc-based architecture and discusses its advantages and disadvantages for EV charging infrastructure. A case study is also presented at the end on the effect of this architecture on the total harmonic distortion of the power … [Read more...]
What is the IEC 61851-1 standard for EV charging?
IEC 61851-1 is an international standard that specifies the general requirements and testing methods for electric vehicle (EV) charging systems. The full title of the standard is "IEC 61851-1 Electric vehicle conductive charging system - Part 1: … [Read more...]
What is required to install an EV charger at home?
In many cases, it's possible to perform a do-it-yourself (DIY) installation of a Level 1 electric vehicle (EV) charger at home. However, installing a Level 2 EV charger is more challenging, and Level 3 fast chargers are not designed for installation … [Read more...]
How does the front-end protocol support V2G charging?
A front-end protocol in electric vehicle (EV) charging focuses on the communication between the vehicle and the charging station. The protocol ensures safe and efficient charging, manages data exchange for controlling the charging process, and … [Read more...]
How to optimize fleet charging and EV depots for the grid
As the electric vehicle (EV) market grows, it highlights a critical concern — the potential stress on our utility distribution grids. While utilities have historically navigated shifts in demand, the surge in EV charging presents a unique challenge: … [Read more...]
What is the Open Charge Point Protocol (OCPP) in EV charging?
Electric vehicle (EV) adoption is rising worldwide, making an efficient, scalable, and universally compatible charging infrastructure essential. The Open Charge Point Protocol (OCPP) provides an open-source framework for simple charging operations … [Read more...]
Why is Wi-Fi 802.11n the preferred wireless charging standard for EV charging?
IEEE Wi-Fi 802.11n is the technology selected for wireless communication for EV charging in Part 8 of the ISO 15118 standard. This article explains why Wi-Fi 802.11n is the preferred wireless network protocol for wireless charging of EVs. We also … [Read more...]
What are the communication protocols in EVs?
Electric vehicles (EVs) are reshaping the automotive industry in terms of sustainability and technology. Not only are EVs reducing greenhouse gases and dependency on fossil fuels, but these vehicles are also driving innovation in aerodynamics, … [Read more...]
What makes dc charging more complicated than ac charging in EVs?
Dc charging is gaining popularity as electric vehicles (EVs) move toward an era of fast charging. The reason: Dc fast chargers help EV batteries charge faster. However, dc charging comes with challenges. This article will review four complications … [Read more...]
What electrical filtering is required for ac and dc EV charging?
Electrical filters ensure the safe, efficient energy flow between chargers and electric vehicles (EVs). This article discusses how filters stabilize electrical currents, mitigate interference, and reduce thermal runaway risks. It also highlights the … [Read more...]
How can Wi-Fi 802.11n be used for wireless EV charging?
Proper alignment of an electric vehicle (EV) over a charging pad has been considered essential to efficiently wireless charge the vehicle. However, wireless communication between the EV and the charging station is equally vital for proper charging. … [Read more...]
Cellular IoT is the key to reliable EV charging
Wide-scale adoption of electric vehicles (EVs) is happening through a combination of incentives and laws. For example, the US Government aims to ensure that EVs are half of all the new vehicles sold by 2030. The UK plans to ban fossil fuel cars from … [Read more...]
How to select a dc-link capacitor for EV fast chargers
Electric vehicle (EV) fast chargers are gaining considerable attention and growth in the market, which means an increasing demand for specialized passive components. Given the high-power, high-energy levels involved — particularly at the power stage … [Read more...]
What are EV charging levels, types, and modes?
Levels, types, and modes categorize EV chargers. The level indicates the maximum power the charger can deliver; the type describes the vehicle interface plug, and the mode represents how the charger connects to the grid. This article reviews the … [Read more...]
What are the challenges with high-voltage EV charging?
With existing battery technologies, higher voltages are the key to faster charging and reduced range anxiety. Current fast charging stations can deliver up to 600 Vdc and 400 A for a total power of 240 kW and charge an EV battery pack up to 80% in … [Read more...]