Volume 16, Issue 2 (June 2020)                   IJEEE 2020, 16(2): 235-247 | Back to browse issues page

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Hoseini S M, Vasegh N, Zangeneh A. Distributed Nonlinear Robust Control for Power Flow in Islanded Microgrids. IJEEE 2020; 16 (2) :235-247
URL: http://ijeee.iust.ac.ir/article-1-1446-en.html
Abstract:   (3556 Views)
In this paper, a robust local controller has been designed to balance the power for distributed energy resources (DERs) in an islanded microgrid. Three different DER types are considered in this study; photovoltaic systems, battery energy storage systems, and synchronous generators. Since DER dynamics are nonlinear and uncertain, which may destabilize the power system or decrease the performance, distributed robust nonlinear controllers are designed for the DERs. They are based on the Lyapunov stabilization theory and super-twisting integral sliding mode control which guarantees system stability and optimality simultaneously. The reference signals for each DER are generated by a supervisory controller as a power management system. The controllers proposed in this work are robust, have fast response times, and most importantly, the control signals satisfy physical system constraints. The designed controller stability and effectiveness are also verified using numerical simulations.
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  • Distributed nonlinear robust controllers are designed for PV, BESS and SG implemented in islanded microgrids;
  • The designed robust controller ensures robustness and global system stability against uncertainties and load changes;
  • The controllers are based on Lyapunov stabilization theory and super-twisting integral sliding mode control;
  • These controllers are robust, have quick response times, and, most importantly, their control signals satisfy the systems physical constraints;

Type of Study: Research Paper | Subject: Microgrids
Received: 2019/03/01 | Revised: 2019/08/25 | Accepted: 2019/08/28

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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.