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-The objective of this study is to analyze the influence of the gains and time constants in a control system of a Power Factor Regulator. This regulator was modeled using the "TACS -Transients Analysis Control System" routine "ATP-EMTP -Alternative Transients Program". This regulator is connected to a synchronous machine of an independent producer, and later, is observed the behavior of machine speed in steady state, the rms voltage and power factor is observed in the PCC (Point of Common Coupling) of the system. Finally, appropriate conclusions about the influence of the gains and time constants for the regulator power factor is conducted, seeking a system that behaves as stable as possible, taking into account the rules related to the insertion of distributed generators in the Electric System.

Abstract. The access to electrical distribution systems with the use of solar photovoltaic's is becoming a viable alternative for the provision of generation through alternative sources of electricity. However, many studies of power quality and transient stability need to be made to meet the technical requirements of the network. Therefore, this article deals with the modeling of photovoltaic module in ATP-EMTP tool called TACS for future studies of the insertion of the PV system in medium and low voltage. To validate this model comparisons of the simulations with the data provided by the manufacturer, thus validating the developed model were performed.

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