EVALUATION OF VOLTAGE VARIATIONS FROM THE INCREASE OF PHOTOVOLTAIC INSERTION IN THE GRID TRANSMISSION
CASE STUDY USINA COREMAS-PB
DOI:
https://doi.org/10.59627/cbens.2022.1062Keywords:
Permanent Regime, Centralized Photovoltaic Generation, Voltage VariationAbstract
This work aims to highlight and analyze the impacts caused on the transmission network resulting from the increase in the insertion of centralized PV generators in the transmission network. A real high voltage (HT) transmission network was analyzed, working within the normative standards, and considering some adjustments in the simulation environment so that the results could be more realistic. The study was carried out with ANAREDE software, considering the system in steady state for load demand and PV generation. The static stress stability evaluation method was used. The simulated system was subjected to an average load level and the PV generators were injecting the power corresponding to the base case (70.6 MW of PV generation already operational) and as an increase of 100% of the forecast total (270 MW) to be added to the PV complex in the future. Through the results, it was possible to verify that, from small disturbances in normal and contingency operating conditions, there was a voltage instability in the network. Furthermore, it was evidenced that the PV complex contributes to an improvement in the stability of the voltage in steady state, reflecting in better responses in the bars close to the insertion of the PV systems. However, the greater the distribution and the higher the power from the PV generation, the greater the contribution to the attenuation of the voltage profiles along the transmission system.
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