Impact of photovoltaic penetration on small signal stability considering uncertainties
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Publication Details
Author list: Gurung S., Naetiladdanon S., Sangswang A.
Publisher: Hindawi
Publication year: 2018
Start page: 1
End page: 6
Number of pages: 6
ISBN: 9781538649503
ISSN: 0146-9428
eISSN: 1745-4557
Languages: English-Great Britain (EN-GB)
Abstract
This paper applies cumulant method to analyze the influence of Photovoltaic Penetration (PV) considering fluctuations in small signal stability The cumulant method for small signal stability is mainly based on sensitivity analysis which is then used with Gram-Charlier expansion to obtain the valuable information of probability density function (PDF) and Cumulative Density Function (CDF) of the real part of the critical eigen value and damping factor. A supplementary controller to enhance small signal stability is also presented and its performance is also analyzed. The test system is a modified IEEE 16 machine, 68 bus system which is benchmarked to study small signal oscillatory dynamics in power systems. The results show that the PV fluctuations have potential to cause oscillatory instability and the future large PV farms should also contain Power Oscillation Damper (POD) to damp these oscillations. ฉ 2017 IEEE.
Keywords
Cumulant Method, Power Oscillation Damper, Probabilistic Analysis
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