Impact of photovoltaic power plants on voltage stability of power system

Čonka, Zsolt; Kohan, Vladimír; Kolcun, Michal

doi:10.1109/cando-epe47959.2019.9111014

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2021

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“…In the investigation of the voltage stability of PV plants, it is generally studied that PV plants are integrated to traditional power systems [6][7][8][9][10]. On the other hand, integration of PV plant with wind power systems are also available [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Voltage Stability Analysis of Large Scale PV Plant Reactive Power Control Methods

Çavdar

Akyazı

Şahin

et al. 2021

Sakarya University Journal of Science

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The increasing integration of photovoltaic (PV) plants into conventional power systems has led to the need to examine the effects of these plants on the system dynamics. By considering this increasing integration rate, in this study, a well-known IEEE-9 bus power system is modified by adding a PV plant in DigSilent Powerfactory environment. Three different transient cases are tested by using PV plant control units designed by Western Electricity Coordinating Council (WECC). The effect of the load and line transient disconnections and 3-phase short circuit fault on modified power system are investigated as case-I, case-II, and case-III, respectively. In all cases, two sub-cases are considered according to the location as a distance factor. As a result, comparison of PV different control options (DCO) is done in terms of voltage stability for these 3 cases and the obtained results are discussed in detail.

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