Improvement of Small Signal Stability of Islanded Microgrids by Adding the Selective Dynamic Droop Gains

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Mansouri Takantape Morteza; HAMZEH MOHSEN

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Journal Paper

Paper Information

Journal: TABRIZ JOURNAL OF ELECTRICAL ENGINEERING Year:2020 | Volume:50 | Issue:2 (92) Page(s): 875-887

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Information Journal Paper

Title

Improvement of Small Signal Stability of Islanded Microgrids by Adding the Selective Dynamic Droop Gains

Author(s)

Mansouri Takantape Morteza | HAMZEH MOHSEN | Issue Writer Certificate

Keywords

Droop methodQ1

dynamic gains of droopQ2

eigenvalue analysisQ1

islanded microgridQ1

power-sharingQ1

sensitivity analysisQ1

small signal stabilityQ1

voltage source inverterQ1

Abstract

In this paper, the improvement of small signal stability of islanded inverter-based microgrids by selective dynamic gains of droop are discussed. An acceptable improvement must be reached by using the possible minimum number of voltage source inverters in order to adding the proper dynamic gains to their droop characteristic. First, using the linearized equations of inverter-based islanded microgrids, a state-space equation of islanded microgrids is presented. Then, a microgrid test system is considered and a sensitivity analysis is applyied to its low-frequency eigenvalues wih a low damping factor. Using the sensitivity analysis, the more effective voltage source inverters are identifiyed such that the addition of proper dynamic gains only to their droop characteristic can increase the damping of low-frequency power oscillations of microgrid. A simulation study is carried out in order to verify the effectiveness of selective dynamic gains of droop in PLECS software.

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APA: Copy

Mansouri Takantape, Morteza, & HAMZEH, MOHSEN. (2020). Improvement of Small Signal Stability of Islanded Microgrids by Adding the Selective Dynamic Droop Gains. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, 50(2 (92) ), 875-887. SID. https://sid.ir/paper/388295/en

Vancouver: Copy

Mansouri Takantape Morteza, HAMZEH MOHSEN. Improvement of Small Signal Stability of Islanded Microgrids by Adding the Selective Dynamic Droop Gains. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING[Internet]. 2020;50(2 (92) ):875-887. Available from: https://sid.ir/paper/388295/en

IEEE: Copy

Morteza Mansouri Takantape, and MOHSEN HAMZEH, “Improvement of Small Signal Stability of Islanded Microgrids by Adding the Selective Dynamic Droop Gains,” TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, vol. 50, no. 2 (92) , pp. 875–887, 2020, [Online]. Available: https://sid.ir/paper/388295/en

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