Title Impact of 100-MW-scale PV plants with synchronous power controllers on power system stability in northern Chile
External publication No
Means IET Gener. Transm. Distrib.
Scope Article
Nature Científica
JCR Quartile 2
SJR Quartile 1
JCR Impact 2.61800
SJR Impact 0.90700
Area International
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85029186605&doi=10.1049%2fiet-gtd.2017.0203&partnerID=40&md5=aa1d0873cbe18aeb61138cc67326947c
Publication date 01/01/2017
ISI 000410162500025
Scopus Id 2-s2.0-85029186605
DOI 10.1049/iet-gtd.2017.0203
Abstract The impact that renewable energy sources interfaced by power electronics have on power systems becomes more important as their share in the generation mix increases, thus requiring detailed analyses that take into account their dynamics and controllers. In this study, the impact of photovoltaic (PV) power plants on the power system of northern Chile is analysed. The studied plants employ a controller that allows power converters to interact with the grid like virtual synchronous generators, and their model includes the dynamics of the plant and converter controllers, as well as the dc and PV system. The presented analysis, which comprises modal analysis and time-domain simulations of large disturbances, evaluates the impact of these plants with respect to PV plants based on a conventional converter controller. Tests and validations of the proposed models and controllers are carried out for an actual PV plant connected to the power system of northern Chile, and for a higher PV penetration case. The results show the ability of PV plants formed by virtually synchronous power converters to limit frequency excursions induced by large power imbalances, and to mitigate power oscillations of the synchronous machines in the system. © 2017, The Institution of Engineering and Technology.
Keywords Controllers; Electric machine control; Electric power system stability; Modal analysis; Photovoltaic cells; Power control; Power converters; Renewable energy resources; System stability; Time domain a
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