In this study, a new snubber cell is developed in order to increase the power density and the efficiency in pulsewidth modulation (PWM) converters and to decrease the EMI noise. The developed snubber cell provides main switch both to turn on with zero-voltage transition (ZVT) and to turn off with zero-current transition (ZCT). The converter […]
Optimal Pulsewidth Modulation of Nine-Switch Converter-Matlab-Power Electronics-2010
Nine-switch converter is a recent reduced semiconductor topology proposed in place of the back-to-back 12-switch converter. Like its precedence, the nine-switch converter can either operate at a single common frequency (CF) or different frequencies (DFs) at its two sets of three-phase terminals, but because of its reduced-switch configuration, some compromises cannot be avoided. In particular, […]
Synthesis of Multiple-Input DC/DC Converters-Matlab-Power Electronics-2010
Hybrid power systems continuously deliver power to the load from several renewable energy sources. For such systems,the use of a multiple-input converter (MIC) has the advantage of simpler circuit structure and lower cost, compared to the use of several single-input converters. By decomposing converters into basic cells, namely, pulsating source cells and output filters, a […]
Nonisolated High Step-up Boost Converter Integrated With Sepic Converter-Matlab-Power Electronics-2010
For a nonisolated high step-up converter, the combination of a boost converter with a series output module is investigated in this paper. As a solution to supplement the insufficient step-up ratio and distribute a voltage stress of a classical boost converter, a sepic-integrated boost (SIB) converter, which provides an additional step-up gain with the help […]
Hybrid Integration of a Low-Voltage, High-Current Power Supply Buck Converter With an LTCC Substrate Inductor-Matlab-Power Electronics-2010
Miniaturization of hybrid integrated buck converters is impeded by the difference in growth laws in current rating for silicon and for inductors as current rating increases. In the 20 A range, this leads to the attractive feasibility of planarizing the output inductor as the largest component by utilizing lowtemperature cofired ceramic technology in the form […]
Switched Inductor Z-Source Inverter-Matlab-Power Electronics-2010
On the basis of the classical Z-source inverter, this paper presents a developed impedance-type power inverter that is termed the switched inductor (SL) Z-source inverter. To enlarge voltage adjustability, the proposed inverter employs a unique SL impedance network to couple the main circuit and the power source. Compared with the classical Z-source inverter, the proposed […]
Effects of Switching Asymmetry on an Isolated Full-Bridge Boost Converter-Matlab-Power Electronics-2010
The effects of switching asymmetry and flux walking on an isolated current-fed full-bridge boost converter are presented with two different secondary configurations: a voltage doubler (VD) and a diode bridge (DB). The results show that a drop in the converter efficiency is clearly visible when there are switching asymmetries in the DB configuration, whereas the […]
A Single-Input Space Vector for Control of AC–DC Converters Under Generalized Unbalanced Operating Conditions-Matlab-Power Electronics-2010
This paper introduces a new technique to generate a space vector from a single real-valued signal via complex transfer functions. The single-input space vector concept may be readily integrated within conventional feedback control loops to introduce new controller functionality. In this paper, the single-input space vector is used to regulate a grid-connected ac–dc converter under […]
Analysis of Boundary Control for Buck Converters With Instantaneous Constant-Power Loads-Matlab-Power Electronics-2010
This paper examines a boundary control for dc–dc buck converters subject to instantaneous constant-power loads.These loads introduce a destabilizing nonlinear effect on the converter through an inverse voltage term that leads to significant oscillations in the main bus voltage or its collapse. Converter dynamics are analyzed in both switching states and the various operating regions […]
Design and Implementation of a Current-Source Converter for Use in Industry Applications of D-STATCOM-Matlab-Power Electronics-2010
This paper deals with the design and implementation of the power stage of a forced-commutated current-source converter (CSC) for use in industry applications of distribution type static synchronous compensator (D-STATCOM). The power semiconductors are switched at 500 Hz according to the switching patterns generated by selective harmonic elimination method for the elimination of the most […]
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