Transnet regenerative braking concept definition

Abstract

Transnet has shown an interest in the concept of regenerative braking on their freight trains. Regenerative braking is the capturing, storing and re-using energy currently being wasted during regenerative braking. Currently all the energy is dumped into a rheostat where it is converted into heat. Storing this energy either on the train or off the train and re-use it during acceleration could have significant cost and other advantages. The CSIR has fields of expertise that could be useful in developing such a system. Super capacitors, Li-ion battery technology, simulation and battery pack controllers are a few technologies that could be used in developing a solution. This Concept Definition is for a Transnet regenerative braking project on their freight lines. Transnet has two main freight lines that carry large amounts of freight: the Sishen-Saldanha and the Ermelo to Vryheid-Oos rail lines. The CSIR main focus is on research and new technology development, while Transnet is focus is on quality service to the client, which includes value for money. These expectations need to be managed carefully to achieve a win-win situation for both parties. Hence the need for a system engineering approach to keep this project on track and focused on meeting the needs of Transnet.