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Author: search.filters.author.Kulkarni, S.V.Subject: search.filters.subject.Distributed generation system

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    Comprehensive Strategy for Power Quality Improvement of Inverter Based Distributed Generation Systems
    (Springer Science and Business Media Deutschland GmbH, 2022) Kulkarni, S.V.; Gatade, S.; Samanvita, N.; Gaonkar, D.N.
    In the present scenario, the continuously increasing demand for electrical energy and the ardent scarcity of renewable energy sources leads to the need for the distributed generation (DG) systems. The DGs with nonlinear and unbalanced loads on the output lead to the power quality issues. One of the main causes of harmonic distortion is the nonlinear loads, which can be harmful in the presence of unbalanced and harmonic power supplies, i.e., power electronic converters. In this study, the inverter-based DG sources for power quality improvement is studied. The paper aims at evaluating the impact of non-linear loads and also aims at improving the power quality using proposed unified power quality conditioner (UPQC) in inverter based DGs. The studied system model is simulated in the MATLAB/SIMULINK environment, and the simulation result shows the better performance under the power quality disturbances. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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    Improved droop control strategy for parallel connected power electronic converter based distributed generation sources in an Islanded Microgrid
    (Elsevier Ltd, 2021) Kulkarni, S.V.; Gaonkar, D.N.
    The control and protection are critically essential to facilitate the stable operation of an island microgrid. To accomplish the exact power sharing in an islanded AC microgrid, the frequency and the voltage restoration need to be sustained. In this regard, a robust control strategy pooling an improved droop with a virtual impedance control based droop control for power sharing with f/V restoration is proposed in this article. The proposed droop controller state-space small signal modeling and an investigation for the total microgrid system are presented in this article. Meanwhile, the robustness of the strategy is escalated for a step change in the system power loads. The overall controller performance has been tested in the hardware-in-loop (HIL) test-bed. © 2021 Elsevier B.V.