This paper proposes a small wind energy conversion system comprises permanent magnet synchronous generator (PMSG), uncontrolled rectifier, conventional H-Bridge inverter and dc-dc bi-directional converter. The dc link capacitor is connected to a storage system through Bi-directional power flow link. A hybrid pulse width modulation (HPWM) controller is used to regulate the ac load voltage and fr...

─The suitability of a single-stage ac-dc buck-boost converter for low-voltage applications is investigated. Indepth discussion and analysis of the converter’s operating principle, basic relationships that govern converter steadystate operation, and details of the necessary control structures needed to comply with the grid code are provided. The validity of the proposed system is confirmed using...

The conventional neutral point clamped (NPC) multilevel inverter topology needs voltage balancing circuits to balance the dc-link capacitor, number of component count is high and output half input which increase size source side dc/dc converter in PV applications. In this paper, a new seven level developed. proposed has self-voltage boosting capability using floating capacitor boost one voltage...

This paper presents first an overview of the wellknown voltage and current dc-link converter topologies used to implement a three-phase PWM ac–ac converter system. Starting from the voltage source inverter and the current source rectifier, the basics of space vector modulation are summarized. Based on that, the topology of the indirect matrix converter (IMC) and its modulation are gradually dev...

Switched Capacitor DC-DC Converter: Superior where the Buck Converter has Dominated

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This paper deals with the design of a Cuk DC-DC converter for a BLDC drive. A three-phase voltage source inverter is used as an electronic commutator to operate PMBLDCM used in a fan. It uses the concept of the voltage control at dc link proportional to the desired speed of the PMBLDCM. The speed of the motor is controlled to have the optimum speed of the fan and also to improve the power facto...

An improved single-ended push–pull (SEPP) halfbridge type zero-voltage soft-switching pulse width modulation (ZVS-PWM) DC–DC power converter is presented in this paper, which makes use of a saturable reactor-assisted lossless capacitor type zero voltage soft-switching method. The SEPP power converter with a high-frequency forward and flyback hybrid transformer link has some advantages such as l...

This paper proposes a reduction method for DC-link ripple current and common-mode voltage (CMV) in hybrid active neutral-point-clamped (ANPC) inverter. A Si SiC ANPC inverter has been developed recently to overcome the extremely high cost of full-SiC requires much fewer MOSFETs than while providing comparable power density. Voltage source inverters such as utilize electrolytic capacitors, which...