An Integrated Power Decoupling Method for Single-Phase EV Onboard Charger in V2G Application
Instead of bulky passive filters, the active power decoupling (APD) method can be adopted to suppress the 2nd-order ripple power in the DC-bus of the single-phase electric vehicle (EV) onboard charging system. However, the traditional APD methods require additional power switches and energy storage...
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| Veröffentlicht in: | IEEE transactions on power electronics 2023-08, Vol.38 (8), p.1-11 |
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| container_title | IEEE transactions on power electronics |
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| creator | Bi, Yuxuan Wu, Chao Xu, Junzhong Li, Houji Wang, Yong Shu, Guohua Soeiro, Thiago Batista |
| description | Instead of bulky passive filters, the active power decoupling (APD) method can be adopted to suppress the 2nd-order ripple power in the DC-bus of the single-phase electric vehicle (EV) onboard charging system. However, the traditional APD methods require additional power switches and energy storage devices, which increases the cost and significantly reduces the power conversion efficiency. To tackle these problems, an integrated method of utilizing the auxiliary power module to form a series-connected APD circuit is proposed in this paper. Without additional switches and energy storage devices, the APD circuit only needs to compensate less than 10% of the rated power, while realizing soft-switching operation. In addition, the corresponding control method can further reduce the voltage stress of the switches on the high-voltage side of the converter, and increase the efficiency of the system. Finally, a 2kW single-phase charging system prototype is built to verify the feasibility and effectiveness of the proposed method. |
| doi_str_mv | 10.1109/TPEL.2023.3281085 |
| format | Article |
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However, the traditional APD methods require additional power switches and energy storage devices, which increases the cost and significantly reduces the power conversion efficiency. To tackle these problems, an integrated method of utilizing the auxiliary power module to form a series-connected APD circuit is proposed in this paper. Without additional switches and energy storage devices, the APD circuit only needs to compensate less than 10% of the rated power, while realizing soft-switching operation. In addition, the corresponding control method can further reduce the voltage stress of the switches on the high-voltage side of the converter, and increase the efficiency of the system. 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| subjects | Active power decoupling auxiliary power modules Avalanche photodiodes Batteries Capacitance Capacitors Circuits Control methods Costs Decoupling method Electric filters Electric vehicle charging Energy conversion efficiency Energy storage Multichip modules second-order current ripple suppression single-phase onboard charging system soft-switching Switches Voltage control |
| title | An Integrated Power Decoupling Method for Single-Phase EV Onboard Charger in V2G Application |
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