Energy Storage Emulation in Islanded low Voltage Grid

Abstract

With an increased integration of grid-connected distributed generators in the power systems, the control structures are increasingly complex. This paper discusses a distributed energy storage technology based on battery banks. The energy storage is connected to a bidirectional DC-DC converter. The design of the battery pack and control of the converter is included in the paper. Additionally, the energy storage system is emulated with a laboratory setup through the use of a power hardware in the loop architecture. The simulations are carried out in MATLAB/Simulink and Opal-RT.