LCL Filter Design with Amorphous Core Inductor for 100 kVA Energy Storage Converter
Abstract
Today, three-phase voltage source converters (VSC) are usually connected to the grid through LCL filters. The design of the LCL filter has a major impact on the overall system performance and, consequently much attention should be given to the selection of basic filter parameters as well as the choice of magnetic materials and dimensions of inductor core. In this paper, the procedure for selecting the basic parameters of LCL filter for a 100 kVA grid-connected converter is described. A simple design procedure for determination of winding turns number and air-gap length of amorphous core inductor is presented. The prototype of three-phase inductor with amorphous core is manufactured in respect to specific constraints. Afterwards, experimental verification of LCL filter performance is carried out using 100 kVA energy storage converter and lithium-ion battery string with capacity of 70 kWh.
Božo Terzić
Full Professor | Department of Electrical Drives and Industrial Control
Full professor at the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture in Split, with significant contributions in the field of industrial development projects including the design of prototypes of electronic converters used in industrial plants around the world. His research interests are focused on the application of electronic converters in electric drives and renewable energy sources.
Ozren Bego
Associate Professor | Department of Electrical Drives and Industrial Control
Marin Despalatović
Full Professor | Department of Electrical Drives and Industrial Control
Full professor at the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split, where he teaches courses Electric Machines, Electric Drive Systems, and Electromechanical System Modeling. His research focuses on power systems, energy storage, and smart grid technologies, with active participation in multiple national and international projects aimed at advancing energy infrastructure and improving system stability.
