کنفرانس مهندسی برق ایران

صفحه اصلی / سی و یکمین کنفرانس بین المللی مهندسی برق

A New High Voltage Gain Z-Source Based DC-DC Converter for High-Power DG Applications

نویسندگان :

Sakina Bakhshi¹ Reza Beiranvand²

1- دانشگاه تربیت مدرس تهران 2- دانشگاه تربیت مدرس تهران

کلمات کلیدی :

DC-DC converter،high step-up converter،interleaved technique،PWM،Z-source network،ZVS Operation

چکیده :

In this paper, a new high step-up dc-dc converter is proposed, which provides a new connection way for impedance network to the primary side of a non-isolated interleaved boost converter, that can meet soft-switching ZVS condition for all semiconductor devices by using the PWM control method, which effectively reduces the converter switching losses and the electromagnetic interference issues. Therefore, high switching frequency operation is possible to reduce the passive components volumes such as inductors and capacitors, as well as the input and output filters. Consequently, high efficiency and high-power density is achieved by using the proposed converter, in practice. Also, a new impedance network is introduced, which can be used in an interleaved configuration to achieve this technique benefits. The given Z-source impedances are also smaller than the common Z-source impedance, which greatly reduces the converter volume and improves the power density.

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