LCL filter design based on ripple current minimization approach for grid-connected inverter application

• Main Authors: Yaakub, Muhamad Faizal, Mohd Radzi, Mohd Amran, Asri, Maaspaliza, Shafie, Suhaidi, Azis, Norhafiz, Mohd Noh, Faridah Hanim
• Format: Other
• Language: English
• Published: IEEE 2021
• Subjects: T173.2-174.5 Technological change
• Online Access: http://eprints.uthm.edu.my/6743/1/P13738_d493d843063b00362e6a690a884fb68d.pdf; http://eprints.uthm.edu.my/6743/

The fast-growing demand for renewable energy has stimulated the rapid development of semiconductor devices and power electronic converter technologies. The grid�connected inverter has turn out to be normal in any distributed generation system. LCL filter is commonly adopted to interconnect an inverter to a utility grid, owing to its parametric performance. However, the common issue regarding resonance frequency and design constraints complexity remains unsolved entirely. In this paper, a simple LCL filter design to address these issues is proposed. A ripple current minimization approach is adopted in the systematic design process to determine optimized reactive components’ value and mitigate its resonance frequency. Design feasibility is simulated in the Matlab/Simulink environment and extensive experimental work was carried out to validated the results against the IEC61000-3- 2 standards.