• S. NISCHALA
• G. BHARGAVI

Electrical energy storage has a significant role to play in improving the performance of future electric traction systems. This paper proposes a new power electronics topology that integrates the energy storage power electronics with those of the inverter drive system. This topology reduces weight and component count compared with previous topologies but still allows the use of standard machines. Practical results from a laboratory test system are shown, and indicative energy savings for a full-sized system are presented. A study on a City Class Tram on the public transportation system in Blackpool, U.K., shows that clear energy savings may be made by employing ultra capacitor energy storage with the proposed topology. The new power electronic converter proposed in this paper combines two parallel inverters. The two parallel inverters work from two separate dc sources: • the traction supply source • the energy storage source. The first inverter is connected to the traction supply source. The second inverter is connected to the ESS. Bidirectional switches are employed to connect the ESS to the motor windings; this is required to prevent current flowing from the traction supply system to the ESS when the inverters are connected in parallel.

Energy Conversion, Energy Storage, Power Control, Traction Power Supplies.

"Simplified Power Converter for Integrated Traction Energy Storage", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.281-294, January-2019, Available :http://www.jetir.org/papers/JETIR1901338.pdf

"Simplified Power Converter for Integrated Traction Energy Storage", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp281-294, January-2019, Available at : http://www.jetir.org/papers/JETIR1901338.pdf