Chargers must meet several international safety standards, including ISO 15118 and DIN SPEC 70121. There are several types of DC charging interfaces for fleet vehicles. The system can deliver high-power charging at up to 600kW.charging a large vehicle such as a bus in seconds. The vehicle parks underneath a charging station, and the scissor-like arms drop down and connect to rails on the vehicle's roof to recharge the battery. Pantograph – Some larger fleet vehicles, such as buses, use a particular type of connector known as a pantograph for opportunity charging.There are several different DC charging interfaces, which we explore below. Dispensers – Each charging station has a dispenser that plugs into the vehicle.Inside you'll find the hardware required to deliver a charge and security features, including high-speed fuses to provide over-current protection. Heliox's cabinets, for example, are built to last 15 years or more. Cabinets –The hardwearing metal cabinets must be waterproof (IP54 level protection) and suitable for outdoor installation.Grid connection – Charging stations require a solid and stable grid connection to provide the power needed for charging.Here are the main parts of every DC charging station: While wireless and bi-directional charging offers enormous future potential, conductive charging is the most cost-effective short- and medium-term solution.ĭC charging stations combine software and hardware to deliver a speedy recharge safely. The process is managed by cloud software and could help us tackle one of the biggest challenges we face, how to store renewable energy. Bi-directional charging enables energy to flow two ways= from the grid to the battery and the battery back to the grid.īi-directional charging can play a crucial role in creating a smart grid, with battery-powered vehicles acting as energy storage devices. It can also be called vehicle-to-grid technology. When reading about DC charging solutions, you may also read about bi-directional charging. The principle has been around for over 100 years and can deliver rapid recharging with no wires or physical interaction necessary. The coil on the vehicle receives this and converts it to energy to power the battery. Power is delivered to the ground transmitter to create a magnetic field. There are two pads, one fitted to the bottom of a vehicle (which contains an induction charging station) and the other to the ground. Wireless DC charging – Wireless charging uses time-varying magnetic fields to transfer power.However, MW chargers are just around the corner and will make charging times even faster. Conductive charging can deliver up to 400kW with a CCS Type-2 connector. The transfer of power is one-way, from the charger to the vehicle. It's the cheapest hardware solution, but it needs manual involvement to work. The current flows through a cable (or from a pantograph to a wire), enabling rapid recharging rates with high transfer efficiency. Conductive charging Conductive charging works through a manual connection from the vehicle to the charging station.There are several DC charging methods currently used to charge fleet vehicles, including conductive charging and wireless charging: As a result, they're powering a cleaner tomorrow for us all. First-generation DC chargers were limited to 50kW, but newer vehicles can accept much larger charge rates some, cases up to 270kW.Ĭouple this with larger batteries fitted to commercial vehicles, and the benefits are clear.ĭC charging means vehicles can spend more time on the road and less time being charged. As a result, DC charging is an optimal solution for fleet operators who want to maximise their vehicles' operational capacity.ĭC charging technology is continuing to evolve. In contrast, DC chargers deliver power directly to the battery – ensuring a much faster charge. The solution is cost-effective, small, and lightweight, but it is slow – taking hours to fully recharge a battery. AC power is transferred to an onboard charger that transforms this to the DC charge required by the battery. Passenger and light commercial vehicles use an AC charger plugged into the mains. This guide provides a complete introduction to DC charging hardware, including information on the main charging methods, charging interfaces and communication protocols. A new generation of DS fast chargers allow even faster recharges of up to 80% of total capacity in less than an hour. Scientists and engineers have made incredible progress. DC charging is the most effective way of powering an electric vehicle battery.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |