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DC power conditioning and processing is an essential challenge now a days. Rectifiers having bridge structures are considered to be nonlinear as they draw non sinusoidal current from line. This distorted current causes several problems related to power quality. In this paper, a new configuration of single phase single switch controlled rectifier using SEPIC topology is proposed. The input current...
Single phase full wave bridge rectifier draws non sinusoidal current from a sinusoidal voltage source which causes low performance of the rectifier. Switching mode regulators are used to improve the shape of current and power factor of the input side. In this paper a different type of single phase single switch AC-DC converter using Ćuk topology is reported. Input current is chopped in this converter...
As the conventional sources of energy (example. oil, gas, coal) are decreasing day by day in the world, renewable energy is going to be the leading energy source in the future. Among all the sources of renewable energy solar PV generation is the potential source for generating power. Penetration of significant amount of solar photovoltaic generation is a challenge for power system stability. Solar...
Input current and power factor improvement of single and three-phase rectifiers by switch mode regulators are usually achieved by switching the output of rectifiers. The output switching makes input current high frequency switched, which is filtered by a small filter to get low input current THD at near unity power factor. In this paper a three phase Buck-Boost rectifier is proposed which is regulated...
Two new topologies of single-phase AC-DC converter using Buck and Buck-Boost conversion with low input current THD and high input power factor are proposed. Instead of using a single phase rectifier followed by a boost DC-DC converter, or using a bridge rectifier with two diodes and two switches, the rectifier's input is chopped at high frequency during positive and negative cycles by a single bi-directional...
A new input-switched single-phase high performance bridgeless AC-DC Zeta converter (Inverse SEPIC) topology is proposed. Instead of using a single phase rectifier followed by a boost DC-DC converter, or using a bridge rectifier with two diodes and two switches, the converter's input is chopped at high frequency during positive and negative cycles by a single bidirectional switch to get step-up/step-down...
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