


Volume 20 No 20 (2022)
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A New Control Strategy Based on Grid Connected Solar/Battery Systems for Energy Management
Kake Eswar , Ch. Srinivasa Rao , Dr. T. Anil Kumar
Abstract
Power from a Solar Photovoltaic (SPV) system is often fed into the grid using a DC-DC converter and
a Voltage Source Converter (VSC) (called two-stage conversion). Due of its effectiveness, singlestage converters have become more common. Methods such as Incremental Conductance Maximum
Power Point Tracking (IC-PPT) of SPV and true power injection using VSC alone fall under this
category. A bidirectional DC-DC converter may be useful for monitoring the maximum power point
and injecting actual power into battery energy storage (BES) system in a single-stage conversion
configuration. In this article, we explain a novel method for managing SPV and BES installations
using a single, grid-connected stage. This technique, which takes into account the battery's SOC,
coordinates the VSC and bidirectional DC-DC converter to monitor the maximum power point and
inject power at the optimal time (Sock). The suggested technique helps relieve uneven neutral current
and compensates for reactive power from the load. We also look at the potential for increasing VSC
capacity by shifting active rectification activities to less busy times of the day (when SPVs are not in
use). Several simulations have shown the viability of the proposed approach
Keywords
photovoltaic, maximum power point tracking, battery energy storage, and electromagnetic
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