When the all-electric Taycan sedan hits the market in 2019 or 2020, it will have access to what will likely be the most powerful charging network on the road. For the first time, economic viability and user-friendly design are brought together in a charging solution that will help electromobility gain greater acceptance.
Looking at the fast-charging stations in use today, the disadvantages of the system are readily apparent at a glance. At present, all of the components needed for charging are installed in every single cabinet: transformer, galvanic isolation, power electronics, cooling and connectivity—significant outlays that make each individual charging station disproportionately expensive. So for Porsche Engineering, a charging park with a new system architecture and a new generation of charging stations quickly crystallized as an alternative. This new generation of devices is characterized by impressive fast-charging technology. It provides an attractive interface to the customer and, thanks to low operating costs, also presents a compelling business case for a wide variety of operators. The innovative charging park system designed by Porsche Engineering also provides the capability to charge the batteries of multiple electric cars at the same time. Thanks to 800- volt technology, batteries can store enough energy for roughly 400 kilometers of range in just 20 minutes. Enough time for a coffee break at the rest stop or a few errands in the supermarket or shopping area.
Greater efficiency—lower operating costs
In addition to the lower system costs, the lower operating costs are also a substantial factor, for the Porsche Engineering charging park also functions more intelligently. The control server of the transformer station brings together all of the information from all control units of the hardware—comparable to a local network. This central brain checks and connects the control units for the cooling unit, the power electronics and the charging station. The control server also handles the communication with the back-end of the respective operator for settlement purposes. The result: Thanks to this innovative architecture, efficiency is boosted to over 95 % for the complete system, which means the possibility of significantly lower operating costs compared to systems available today.