In today's market, electric bikes (e‐bikes) are becoming exceedingly popular due to their smaller size, ease of domestic charging and cost‐friendly alternative in the category of electric vehicles. So, there is a need for the development of a power factor corrected (PFC) private off‐board charger (OBC) to cater to the need of the domestic charging of e‐bikes. Traditionally, e‐bike chargers powered by a domestic meter are realised by a non‐PFC OBC with a power rating of 500–700 W. Such converters draw harmonic currents at very high crest factor and affect the life and performance of other domestic appliances. A private OBC which derives its power from the domestic supply for charging the battery of an e‐bike is proposed. The charger has two stages, i.e. the PFC stage for input current shaping and the DC–DC stage for regulating the battery charging voltage and charging current. The PFC stage is based on the single‐ended primary inductance converter and the DC–DC stage is based on the inductor inductor capacitor (LLC) resonant converter. A 570 W, 57.6V, 10 A prototype is built using digital signal processor (TMS320F28035) to evaluate and validate its performance for charging a lithium‐ion battery pack.
PFC‐SEPIC converter‐fed half‐bridge LLC resonant converter for e‐bike charging applications
IET Electrical Systems in Transportation ; 10 , 3 ; 225-233
2020-09-01
9 pages
Article (Journal)
Electronic Resource
English
battery chargers , DC–DC stage , private off‐board charger , LLC resonant converter , electric bikes , power rating , lithium compounds , domestic appliances , digital signal processor TMS320F28035 , battery‐charging voltage , voltage 57.6 V , PFC‐SEPIC converter‐fed half‐bridge , power 500.0 W to 700.0 W , DC‐DC power convertors , electric vehicles , lithium‐ion battery , bridge circuits , power system harmonics , cost‐friendly alternative , charging current , primary inductance converter , current 10.0 A , resonant power convertors , power factor correction , e‐bike domestic charging , private OBC , switching convertors , electric vehicle charging , voltage control , PFC stage , battery powered vehicles , power factor corrected , machine control , digital signal processing chips , harmonic currents
PFC-SEPIC converter-fed half-bridge LLC resonant converter for e-bike charging applications
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