High-Efficiency Single-Stage On-Board Charger for Electrical Vehicles
| Autor: | Ievgen Verbytskyi, Dmitri Vinnikov, Denys Zinchenko, Andrii Chub, Andrei Blinov, Sertac Bayhan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Total harmonic distortion
business.product_category Materials science Computer Networks and Communications business.industry Electrical engineering Aerospace Engineering Topology (electrical circuits) Power factor Power (physics) law.invention Capacitor law Automotive Engineering Electric vehicle Snubber Voltage regulation Electrical and Electronic Engineering business electric vehicle (EV) charger on-board charger (OBC) power factor correction (PFC) single-stage AC-DC converter |
| Popis: | This paper presents an isolated single-stage onboard electric vehicle charger, that does not include an intermediate DC-link capacitor. The converter is based on an isolated current-source topology and features soft-switching in semiconductors regardless of load variation for the full AC line voltage range. Moreover, it requires no external snubber or clamp circuits. The power factor correction and voltage regulation are provided by a relatively simple phase shift modulation, while the amount of circulating energy is kept minimal. The distinguishing feature lies in its efficiency characteristic the maximum is achieved in the constant power charging mode. The control method, component stresses, and design constraints of the topology are analyzed. The charger concept is verified using the 3 kW experimental prototype based on SiC semiconductors, which reaches the peak efficiency of 96.4%. Moreover, the charger demonstrates efficiencies above 95% with the THD of 4.1%, when operating in constant power mode at the maximal power. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|