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An obvious obstacle to a wider utilization of electric vehicles (EVs) is the absence of a widely available charging network. Direct charging of EV batteries with dc voltage in charging stations requires deployment of expensive power electronics equipment. On the other hand, placing the same equipment on-board an EV would enable access to any three-phase grid outlet, but would substantially increase...
The paper considers a novel fast charging topology for electric vehicles (EVs). Instead of being made as a separate unit, the proposed on-board charger utilizes power electronics components that already exist inside the vehicle, namely an asymmetrical six-phase propulsion motor and a six-phase inverter. The charger can operate at unity power factor, and is capable of vehicle-to-grid (V2G) operation...
A novel type of fast on-board battery charger, applicable for four-motor electric vehicles (EVs), is presented in the paper. The charger consists exclusively of components that are already present on-board the vehicle. Having no new elements, it has a positive impact on the cost, weight and space saving in the vehicle. A three-phase grid is directly attached to the neutral points of three propulsion...
A new topology for integrated on-board battery charging is proposed in this paper. A symmetrical six-phase machine and inverter, which are used for propulsion, are incorporated into the charging process. The configuration achieves power transfer through the machine without developing an average torque in it during the charging mode. Additional degrees of freedom of six-phase machines are explained...
Open-end winding variable speed drives with dual-inverter supply have been extensively investigated for various applications, including series hybrid powertrains and propulsion motors. The existing body of work is restricted to the three-phase electric machinery. This paper looks at the possibility of using machines with higher phase numbers in an open-end winding configuration with dual multiphase...
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