PROJECT TITLE :

Analytical Design of Passive LCL Filter for Three-phase Two-level Power Factor Correction Rectifiers - 2017

ABSTRACT:

This paper proposes a comprehensive analytical LCL filter style method for three-part two-level power factor correction rectifiers (PFCs). The high-frequency converter current ripple generates the high-frequency current harmonics that need to be attenuated with respect to the grid standards. Studying the high-frequency current of every component proposes a noniterative solution for coming up with an LCL filter. In this paper, the converter current ripple is thoroughly analyzed to generalize this ripple behavior and find the utmost current ripple for sinusoidal pulse width modulation (PWM) and third-harmonic injection PWM. Consequently, this ripple is employed to accurately verify the desired filter capacitance based mostly on the most charge of the filter capacitor. To select the grid-aspect inductance, two ways are investigated. Initial method uses the structure of the damping to precise the grid-facet filter inductance as a perform of the converter current ripple. Reducing the ability loss in the filter and optimizing the grid-facet filter inductance is the main focus of the second technique which is achieved by using line impedance stabilization network (LISN). Accordingly, two LCL filters are designed for a five kW silicon-carbide-based three-phase PFC. Numerous experimental eventualities are performed to verify the filters attenuation and performance.