**7. Conclusions**

In this paper, a power balancing control for a grid energy storage system is presented. The PBC technique is implemented on a TMS320F2812 processor-based controller card and tested. Dynamic responses of the inverter and battery charger system are verified by applying a step change in the reference values. From the presented HIL results, it is observed that the performance of PBC control is satisfactory in all three modes of operation and good dynamic performance is also achieved using this technique. As the controls are tested through HIL simulations in this work, plant parameters are considered as ideal whereas the plant parameters vary with operating temperatures in real time operation. Hence, minor modifications in plant parameters and tuning of control parameters are required to implement the proposal on areal system. The same system can be extended further to have the feature of reactive power compensation through the modified PBC control.

**Acknowledgments:** No funding resources.

**Author Contributions:** Sridhar Vavilapalli, Sanjeevikumar Padmanaban, Umashankar Subramaniam had developed the originally proposed research work and implemented with numerical simulation software and real time RTDS system for investigation and performance validation. Sanjeevikumar Padmanaban, Umashankar Subramaniam, Lucian Mihet-Popa contributed their expertise in the proposed subject of research and verification of the obtained results based on theoretical concepts and insight background. All authors involved to articulate the research work for its final depiction as a research paper.

**Conflicts of Interest:** The authors declare no conflict of interest.

### **References**


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