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M. R. Banaei

استاد دانشگاه شهید مدنی آذربایجان

[ 1 ] - Two-Stage Inverter Based on Combination of High Gain DC-DC Converter and Five-Level Inverter for PV-Battery Energy Conversion

This paper proposes a new two-stage inverter based on transformer-less high gain DC-DC converter for energy conversion of a photovoltaic system. The designed system consists of a high gain DC-DC converter cascaded with a three-phase inverter. The proposed DC-DC converter has a simple structure, and it has one switch in its structure. The output voltage of the DC-DC converter supplies DC source ...

[ 2 ] - Analysis of Switched Inductor Three-level DC/DC Converter

A non-isolated DC/DC converter with high transfer gain is proposed in this paper. The presented converter consists of the switched inductor and three-level converters. The DC/DC power converter is three-level boost converter to convert the output voltage of the DC source into two voltage sources. The main advantages of DC/DC converter are using low voltage semiconductors and high gain voltage. ...

[ 3 ] - Two Inputs Five-Level Quasi-Z-Source Inverter

This paper combines quasi-Z-source into a typical five-level inverter, which includes two dc voltage sources, two quasi-Z-sources and five switching devices. In this structure, the output voltage amplitude is not limited to dc voltage source and it can be increased by quasi-Z-source. Besides, due to nature of Z-source families, this new structure is reliable and higher efficiency. Also, in this...

[ 4 ] - Multi-Stage DC-AC Converter Based on new DC-DC converter for energy conversion

This paper proposes a multi-stage power generation system suitable for renewable energy sources, which is composed of a DC-DC power converter and a three-phase inverter. The DC-DC power converter is a boost converter to convert the output voltage of the DC source into two voltage sources. The DC-DC converter has two switches operates like a continuous conduction mode. The input current of DC-DC...

[ 5 ] - طراحی یک LED درایور با جریان خروجی ضربانی بدون خازن الکترولیتی با قابلیت اصلاح ضریب توان ورودی

LED درایورهای آفلاین متداول (50 یا 60 هرتز) برای کاهش مولفه‌ی فرکانس پایین نوسان در خروجی و نیز کاهش نامتعادلی توان بین ورودی AC و خروجی DC، از یک خازن الکترولیتی بزرگ استفاده می‌کنند. از طرف دیگر خازن الکترولیتی مهم‌ترین عنصر محدود کننده‌ی عمر درایور می‌باشد. یکی از روش‌های حذف این نوع خازن از ساختار درایور کاربرد جریان ضربانی فرکانس بالا به جای جریان DC ثابت می‌باشد. در این مقاله یک ساختار بد...

[ 6 ] - Design of the new multilevel current source converter to grid connected applications

A novel current source multilevel inverter is introduced in this paper which is an appropriate alternative to be employed for low/medium power applications. the proposed converter is formed basic modules which paralleling these modules increse output current levels and improve quality of injected current to load or grid. in order to validate advantages of proposed converter versus the several m...

[ 7 ] - An Isolated Off-Line High Power Factor Electrolytic Capacitor-Less LED Driver with Pulsating Output Current

One of the most efficient lighting technology is based on light-emitting diodes (LEDs). Common LED drivers with AC-input (50-60Hz) usually require a bulk electrolytic capacitor to decrease low-frequency ripple in the output. However, the critical element that limits the lifespan of the LED driver is the electrolytic capacitor. An isolated off-line LED driver is proposed in this paper, in which ...

[ 8 ] - Analysis and Design of a New Single Switch Non-Isolated Buck-Boost dc-dc Converter

In this paper, a new transformerless buck-boost converter based on ZETA converter is introduced. The proposed converter has the ZETA converter advantages such as, buck-boost capability and input to output DC insulation. The suggested converter voltage gain is higher than the classic ZETA converter. In the presented converter, only one main switch is utilized. The proposed converter offers low v...