Multiport DC-DC Converter with Differential Power Processing for Fast EV Charging Stations

With the growing interest in owning electric vehicles due to increased environmental awareness and uncertain energy security together with development of Li-ion batteries, quietness, trouble-free operation, it is urgent develop charging stations that are fast enough supply conveniently, as case conventional petrol stations. The main reason hinders spread installation cost, comprising infrastructure converter costs. In this article, a multiport DC-DC differential power processing stages proposed for Electric Vehicle (EV) stations, which results considerable reduction cost using converters while achieving high efficiency. topology consists two paths flow (outer inner loops) EV battery auxiliary outer loop; all ports connected series supply, where bulk being transferred. injects voltage control loop. rated at fractional controls partial supplied each port through loops. Thanks processed by remaining fed converter, architecture enables simultaneous multiple better efficiency, lower capability providing fault tolerance feature. A PWM scheme achieve bi-directional partially discussed system. Moreover, practical down-scaled hardware prototype designed validate functionality, scheme, effectiveness different studies investigated. efficiency compared configuration.