Volume 18, Issue 1 (March 2022)                   IJEEE 2022, 18(1): 2114-2114 | Back to browse issues page

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Alavi S M, Ghazi R. A Novel Droop-based Control Strategy for Improving the Performance of VSC-MTDC Systems in Post-Contingency Conditions. IJEEE 2022; 18 (1) :2114-2114
URL: http://ijeee.iust.ac.ir/article-1-2114-en.html
A Novel Droop-based Control Strategy for Improving the Performance of VSC-MTDC Systems in Post-Contingency Conditions
S. M. Alavi , R. Ghazi
Abstract:   (2084 Views)
One of the significant concerns in the MTDC systems is that voltage source converters (VSCs) do not hit their limits in the post-contingency conditions. Converters outage, DC line disconnection, and changeable output power of wind farms are the most common threats in these systems. Therefore, their destructive impact on neighboring AC systems should be minimized as much as possible. The fixed droop control is a better choice than others to deal with this, although it also has some limitations. Accordingly, a novel centralized droop-based control strategy considering N-1 contingency is proposed in this paper. It prevents converters from exceeding their limits while causes optimal power sharing and minimum DC link voltage deviation immediately, without secondary control layer. It also utilizes maximum wind power without curtailment. These properties improve the performance of the MTDC system in post-contingency conditions. The effectiveness of the proposed control method is validated by simulation of a 4-terminal VSC-MTDC system in MATLAB/Simulink R2016a.
Keywords: DC Voltage Control , Droop-Based Control , Optimal Power Sharing , Post-Contingency Conditions , VSC-MTDC System
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Type of Study: Research Paper | Subject: Active and Reactive Power Converter Control
Received: 2021/02/22 | Revised: 2021/08/02 | Accepted: 2021/08/13
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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.