Latest News Monday, November 09, 2020

Double insulated DC/DC converter for hybrid trolleybuses

© Daniel Möschke

Hybrid trolleybuses are relatively expensive vehicles. A major cost driver here is the necessary double insulation of all electrical components in the vehicle. This becomes unnecessary if a double insulated DC/DC converter is used directly after the current collector. Such double insulated DC/DC converters are now available from Dinghan SMART.  An early prototype was successfully put into operation in October 2020. Together with an automatic overhead current collector system developed at the University of Applied Sciences in Zwickau in Western Saxony, an electric bus can be converted into a hybrid trolleybus. Further information is available here.


About Dinghan SMART Railway Technology GmbH
Dinghan SMART Railway Technology GmbH develops and manufactures innovative auxiliary power converters for international rolling stock. The product portfolio ranges from single devices such as battery chargers or air conditioning inverters to complete auxiliary power converters for passenger cars and multiple-unit trains. The system technology is suitable for a variety of applications and characterized by innovative power electronics, high reliability, and robustness. The subsidiary of Beijing Dinghan Technology Group Co., Ltd. has its headquarters in Kassel in the center of Germany.

About Beijing Dinghan Technology Group
Beijing Dinghan Technology Group Co. Ltd. is a leading Chinese manufacturer of railway technology systems. The group’s product portfolio covers rail infrastructure and rolling stock. With a number of R&D centers, production and sales sites, Beijing Dinghan offers both mobility and high-tech solutions. Beijing Dinghan Technology Group Co. Ltd. employs approximately 1,800 staff worldwide. In 2018, the stock-listed company