چکیده مقاله
This paper presents a DC/DC topology that achieves over 97% efficiency for electric vehicle EV fast chargers requiring a very wide output voltage range The architecture synergistically combines an unregulated resonant stage with a post regulating buck converter The former provides high frequency isolation, while the latter executes precise constant current and constant voltage charging protocols The merits of this structure are multifold: it facilitates a wide operational range, obviates circulating current losses, and ensures ZVS operation for all switches in the isolated resonant stage, thereby enabling high frequency and high voltage operation Moreover, the topology maintains high efficiency across the entire battery charging profile and promotes a high power density design through the minimization of passive component size Experimental results from a 5 kW prototype 50/120 kHz, 30 A, 50 650 V confirm the practical viability of the converter
کلیدواژهها
نویسندگان
Mohsen Karimi
Seyed Saeed FazelSandidzadeh Mohsen Fazeli
Seyed Saeed Fazel
Mohsen KarimiSandidzadeh Mohsen Fazeli
Sandidzadeh
Mohsen KarimiSeyed Saeed Fazel Mohsen Fazeli
Mohsen Fazeli
Mohsen KarimiSeyed Saeed FazelSandidzadeh
شیوه ارجاع
Karimi, Mohsen and Fazel, Seyed Saeed and , Sandidzadeh and Fazeli, Mohsen,1404,Design and Optimization of PFM-LLC resonant fast charger for High-Voltage EV Application,2nd International Conference on Modern Power Trains,Tehran
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