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The Vienna rectifier is a unidirectional boost type improved power quality ac-dc converter (IPQC). The rectifier topology is capable of providing a dc output voltage that is higher than the ac source voltage with improved power factor. The topology is compatible with the hysteresis current control (HCC) technique. It has the capacity to provide almost unity power factor with low current distortion...
The Non-Conventional sources such as wind energy is environment friendly, cost effective electric source. This paper introduces the modeling and simulation of wind energy conversion system using boost and SEPIC converter under variable supply conditions. These two wind energy system with boost and single ended inductor SEPIC converter are designed on MATLAB/SPS to simulate with three-level neutral...
The Non-Conventional sources such as solar energy has been replacement and best exploited electric source. The solar electric power required DC-DC converter for production, controllable and regulation of variable solar electric energy. The single ended boost converter has been replaced by SEPIC converter to overcome the problem associated with DC-DC converter. The problem associated with DC converter...
The high step-up converter is inevitable in a photovoltaic system since it requires a sufficiently high step-up conversion. A high step up converter with coupled inductors could be used for this purpose due to its inherent advantages. It acts as an efficient interface between the PV system and the grid. The output obtained in such a system is found to be fluctuating with load variations. This could...
The DC/DC Boost converter due to their physical characteristics have a relationship between the switching frequency and inductance value, the use of frequencies above 20 kHz reduces the required size of the inductor. To handle such switching frequencies is common to use MOSFET (Metal-Oxide Semiconductor Field-Effect Transistor) power semiconductor devices, these elements have losses due to parasite...
In this paper a high step-up interleaved boost converter is proposed for renewable energy applications. The proposed converter uses multi-phase/interleaving technique with two coupled inductors in one phase and an intermediate capacitor between the two phases. The idea is such that the coupled inductors are used to develop a high voltage across the intermediate capacitor and then this high voltage...
This paper analyzes two maximum power point tracking (MPPT) converter topologies that are part of an interface converter for the integration of photovoltaics (PV) in the grid. Two different MPPT converter topologies (boost converter and quasi-Z-Source (qZS) converter) were selected and compared. Theoretical comparison includes an analysis of regulations for obtaining continuous source current and...
A boost converter is capable to increase input voltage to a certain voltage level which is required by a high voltage load. In this project, a 12V battery is used as input voltage to the boost converter circuit. The Timer IC 555 is the main control device used to control the switching of the MOSFET. The main objectives of this project are to study and design a simple, portable, and low cost boost...
The voltage between drain and source of MOSFET during switching actions in Boost converter, in most cases, is considered as the major source of electromagnetic interference (EMI). However, the drive circuit of MOSFET, when along with an overshoot, which commonly exists, can also be another important EMI source. This paper analyzes the principle of the overshoot of drive voltage, and then proposes...
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