Power Quality Issues of Single Phase PFC Low Frequency Active Converter
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2017, Vol 12, Issue 4
Abstract
The equipment connected to an power distribution network usually needs some kind of power conditioning, typically rectification, which produces a non-sinusoidal line current due to the non-linear input characteristic. With the steadily increasing use of such electronic equipment, line current harmonics have become a major problem. Their adverse effects on the power system are well recognized. They include increased magnitudes of neutral currents in three-phase systems, overheating in transformers and motors, as well as the degradation of system waveforms. Several international standards now exist, which limit the harmonic content due to line currents of equipment connected to electricity distribution networks. As a result, there is the need for a Power Factor Correction - PFC. In this paper, we address several issues concerning the application to single-phase PFC of various high-frequency switching converter topologies. The inherent PFC properties of second order switching converters operating in Discontinuous Inductor Current Mode – DICM are well known, and Boost converters are widely used. However, their output voltage is always higher than the amplitude of the rectified-sinusoid input voltage. Methods for improving the efficiency of the PFC stage are addressed. We compare several Boost-type topologies that have lower conduction losses than the combined diode bridge and Boost converter in other words it can perform direct AC/DC conversion. Simulation results show that the topological issues related PFC in power converter. Index Terms: Power quality, PFC, boost converter, current mode, current harmonics. (Key words)
Authors and Affiliations
Syed Mujtaba Mahdi Mudassir, Shaik Mohammed Mukassir, Gulam Amer
Keywords
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- EP ID EP388235
- DOI 10.9790/1676-1204030725.
- Views 143
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