Integration of Utility Grid with Hybrid Generation for Power Quality Conditioning Using Dynamic Voltage Restorer

Abstract

The intermittent natures of renewable energy sources are influencing the system parameter while integrated with the power system. The switching of the load also influences the system and May causes the power quality issues such as voltage Sag, Swell, voltage interruption and voltage spikes. Getting the smoothening power and meeting the peak demand is the greatest challenge in the current scenario. The necessary and sufficient power is provided with the use of integration of renewable sources and power conditioning unit. In this work, the grid integration of solar photovoltaic, Fuel cell with heavy duty gas turbine generator is made. The voltage interruption is avoided using hybrid generation with dynamic voltage restorer.  The solar photovoltaic is integrated with DC link through the boost converter and the maximum power is extracted using fuzzy based maximum power point tracking technique. The Fuel cell and the heavy duty gas turbine are integrated with DC link for providing continues power and this integration can avoid the effect of intermittent nature of solar power.  The DC link power is integrated with the grid through the voltage source converter. The voltage source converter and the dynamic voltage restorer are operated through a power conditioning unit.  The performances of the hybrid generation with dynamic voltage restorer are simulated under dynamic source and load variations. The total harmonic distortion of the hybrid generation with dynamic voltage restorer performance is maintained within the limit as per IEEE-519 standard.