A Comb-MSTOGI-NFLL Control With Power Levelling Feature for a SPVA-BES Based Microgrid Without Additional BES Converter

Abstract

With the reduced response time and power levelling feature of the battery energy storage (BES), it supports the power variability experienced by the grid during variability of renewable sources and load fluctuations. Moreover, the increased distortion factor of load currents contaminates the grid currents by degrading the overall system power quality and increased system losses. Therefore, there is a need for proper energy management solutions with improved converter control to regulate the BES power as well as to improve the system power quality. Hence, this work presents a solar photovoltaic array (SPVA) with a battery energy storage (BES) based grid tied microgrid. To control the microgrid, a comb filter derived mixed second-third order generalized integrator with normalized frequency locked loop (Comb-MSTOGI-NFLL) based control is deployed into SPVA converter to achieve power quality enhancement features by elimination of dominant harmonic components and DC offset from the grid currents. The control technique also involves power levelling features, with support from BES, without using an additional converter for BES. The system response with proposed control is demonstrated through simulation results.

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Identifiers

DOI

10.1109/PESGRE58662.2023.10404869

Journal

2023 IEEE International Conference on Power Electronics, Smart Grid, and Renewable Energy (PESGRE)

Year

2023