Title :
Current control in two level non-isolated bidirectional dc-dc converter in CCM for HEV
Author :
Buvana, D. ; Jayashree, R.
Author_Institution :
EEE Dept., Sri Krishna Eng. Coll., Chennai, India
Abstract :
This work deals with simulation of average current dynamic controlled Non Isolated Bidirectional DC - DC converter with motor load in motoring and braking mode. The proposed cascaded converter has the advantages of transformer less operation. This converter can operate with steep conversion ratio. The enhanced topology is operated by soft-switching, continuous inductor current and fixed switching frequency. In the proposed DC-DC converter topology, the coupled inductor performance has been improved by the switched coupled-inductor. For fast charging stations, compact and efficient DC-DC converters with a high output power is required. The inductor current ripple will affect the performance of battery in vehicle. Due to current ripple battery gets heated and life of battery decrease. So to achieve a high power density as well as to implement current dynamics of inductor in closed loop is done in proposed converter. In this work current controlled two level non isolated bidirectional DC-DC converter in CCM for HVE is proposed. The proposed converter is carried out in MATLAB working platform and the output performance is analyzed.
Keywords :
DC-DC power convertors; cascade networks; coupled circuits; electric current control; hybrid electric vehicles; zero current switching; zero voltage switching; CCM; HEV; Matlab; braking mode; cascaded converter; charging station; continuous current mode; continuous inductor current; current control; current dynamics; fixed switching frequency; hybrid electrical vehicle; inductor current ripple; motor load; motoring mode; power density; soft-switching; steep conversion ratio; switched coupled-inductor; transformerless operation; two level nonisolated bidirectional DC-DC converter; Average Current control; Non isolated Bi directional DC-DC converter; Proportional Integral Controller; Zero Voltage Switching; ziegler-nichols method;
Conference_Titel :
Sustainable Energy and Intelligent Systems (SEISCON 2013), IET Chennai Fourth International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-78561-030-1
DOI :
10.1049/ic.2013.0319