Análise da propagação de harmônicas de alta frequência em uma rede de distribuição de baixa tensão

The development of solar photovoltaic generation systems into the grid, electric vehicles and electronic mass-market equipment is characterized by growth high frequency emissions in range 2–150 kHz. These high-frequency emissions, known as supraharmonics, negatively affect power quality electrical distribution systems. It important to investigate analyze propagation these currents on grid for diagnosis mitigation any disturbances caused them. This paper aims study supraharmonic real presented measurements a connected inverter simulations typical low voltage distibution grid. was made using MATLAB Simulink® software model including current sources allocated different buses system. results show that harmonic distortion levels depend impedance along Further, also explore possibilities this type system, showing consideration bank capacitors (or intrinsic capacitances system) leads almost total attenuation supra-harmonic voltages levels.