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This paper proposes a novel integrated power system for electric vehicles (EVs) to improve the power density and efficiency at a less cost. It integrates the on-board charger (OBC) and the low-voltage DC/DC converter (LDC) by common use of semiconductor devices, capacitors and magnetic components. Therefore, the volume and cost of the integrated system is reduced compared with the conventional two...
This paper presents the dynamic analysis, simulation and experimental results on a ZVS (zero voltage switching) bidirectional isolated three-phase dc-dc converter. The topology uses a steady-state model based on fundamental components considering three possible control variables (dual phase-shift and duty cycle). The dynamic model of the converter using phase-shift (PS) control is developed employing...
This paper presents a combination of a quasiresonant dc-link (QRDCL) inverter and a generalized three-level inverter. QRDCL inverter can decrease the dc-link voltage to zero in order to provide a zero voltage condition for the power devices. The voltage stresses of the power devices can be released and the switching losses of the inverter can be reduced under zero-voltage switching (ZVS). Generalized...
The cusp distortion is an inherent behavior of all boost PFC rectifiers. Though the contribution of cusp distortion is small but it limits the maximum achievable performance in PFC rectifier. In spite of this fact, little effort has been made in the past to avoid cusp distortion. We will propose a new topology to minimize the distortion in boost rectifier. The main characteristic of the proposed topology...
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