Closed Loop Control of Composite Dc-Dc Converter for Electric Vehicle
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2017, Vol 12, Issue 6
Abstract
In a electric vehicle powertrain, a boost dc-dc converter enables reduction of the size of the electric machine and optimization of the battery system. Design of the powertrain boost converter is challenging because the converter must be rated at high peak power, while efficiency at medium to light load is critical for the vehicle system performance. By previously proposed efficiency improvement approaches offer limited improvements in size, cost and efficiency trade-offs. This paper shows how all dominant loss mechanisms in automotive powertrain application can be mitigated using a new composite converter approaches and the closed loop control of composite dc-dc converter enables to get constant DC output at converter terminal. It is found that the selected composite converter results in a decrease in the total loss. Furthermore, the total system capacitor power rating and energy rating are substantially reduced, which implies potentials for significant reductions in system size and cost.
Authors and Affiliations
Sowmiya . P, Dr. C. Govindaraju
Keywords
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- EP ID EP388477
- DOI 10.9790/1676-1206025968.
- Views 175
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