ANALYSIS OF THE IMPACTS OF CENTRALIZED PHOTOVOLTAIC GENERATION IN THE POWER QUALITY OF DISTRIBUTION NETWORKS IN 69KV
Photovoltaic Solar Generation, Distribution Network, Voltage Quality, Power Rejection
The growing presence of centralized solar generation connected to the distribution network is a reallity worldwide. However, it contribute also with the increased concern about its impact on electricity networks.
In face of exposed scenario, this paper presents real cases which discuss the influence on the high voltage network power quality of a large solar photovoltaic generator insertion in a 69 kV network. The studies consider analyzes related to steady-state voltage, as well as transient events.
In order to support the case of studies development, tools were used, such as: Communicator PQA, Hemera e PIM (measurement integrated platform). These tools were essential for the treatment of primordial measurement data.
The outcomes obtained show that the insertion of the photovoltaic generating plant results in a beneficial increase in the voltage level of the distribution network studied. However, it was also verified that the intermittent characteristic of the used technology might bring on voltage variations in such order which can violate regulatory limits.