UGC Approved Journal no 63975(19)

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Published in:

Volume 5 Issue 1
January-2018
eISSN: 2349-5162

UGC and ISSN approved 7.95 impact factor UGC Approved Journal no 63975

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Published Paper ID:
JETIR1801032


Registration ID:
171256

Page Number

170-174

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Title

POWER SYSTEM STABILITY ENHANCEMENT BY USING VIRTUAL INERTIA CONTROL IN DFIG BASED WIND ENERGY SYSTEM

Abstract

Distributed generation is characterized as a form of generation that is not directly connected to the bulk transmission grid. It is usually connected via power electronic devices if it is a renewable resource, in this case in the form of a voltage source converter (VSC) operating as an inverter (converting DC-to-AC). The grid impedance connected to the VSC has an influence on its stability and control performance. By looking at the output impedance of the VSC, the stability can be determined in relation to the impedance of the grid connection. A number of parameters influence the output impedance of a VSC, one of those being the control scheme used and the phase-locked loop (PLL) contained within it. Wind turbines with virtual inertia control are coupled to power system in dynamic characteristics, and the control input of virtual inertia control is directly affected by the tracking ability of phase-locked loop (PLL). Thus, it is urgent to study the impact of DFIG wind turbines with virtual inertia control on power system small-signal stability considering the effects of PLL. And then, considering that both PLL and virtual inertia control will affect the oscillation modes of synchronous generators, analytical method is used to reveal system small-signal stability under the joint effects of the two factors quantitatively. The smaller the PI parameters of PLL are, the smaller the participation factor of virtual inertia control state variables in the inter area oscillation mode is, and the bigger the electromechanical oscillation mode damping ratio. MATLAB/SIMULINK Simulation results verify the reasonableness of the established model and the possibility that virtual inertia control may cause system small-signal stability to deteriorate in multi machine system.

Key Words

DFIG wind turbines, virtual inertia, phase-locked loop, coupling characteristics, small-signal stability, damping characteristics.

Cite This Article

"POWER SYSTEM STABILITY ENHANCEMENT BY USING VIRTUAL INERTIA CONTROL IN DFIG BASED WIND ENERGY SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 1, page no.170-174, January-2018, Available :http://www.jetir.org/papers/JETIR1801032.pdf

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2349-5162 | Impact Factor 7.95 Calculate by Google Scholar

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 7.95 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Cite This Article

"POWER SYSTEM STABILITY ENHANCEMENT BY USING VIRTUAL INERTIA CONTROL IN DFIG BASED WIND ENERGY SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 1, page no. pp170-174, January-2018, Available at : http://www.jetir.org/papers/JETIR1801032.pdf

Publication Details

Published Paper ID: JETIR1801032
Registration ID: 171256
Published In: Volume 5 | Issue 1 | Year January-2018
DOI (Digital Object Identifier):
Page No: 170-174
Country: -, -, - .
Area: Engineering
ISSN Number: 2349-5162
Publisher: IJ Publication


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