Controlling methods for power factor correction of storage devices connected into smart grid

Increasing intensity of interest in clean energy and smart grid fields has raised the demand for solid state AC-DC converters to enhance power quality in expression of PFC (Power Factor Correction) and lessening THD (total distortion of harmonic) at in-puts of AC mains and precisely regulating DC output have resulted in proposing of several topologies based on classical converters as boost, buck, and buck-boost. This paper presents an exhaustive review of controlling methods for IPQCs (improved power quality converters) and configurations, design features, and selection for connecting storage devices into micro-grid. The paper is aimed to present a broad perspective on the status of IPQC technology to researchers, designers and application engineers working on clean energy and smart grid fields.