Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Analysis and Compensation of PCC Voltage Variations caused by Wind Turbine Power Fluctuations

  • Received : 2012.08.22
  • Published : 2013.09.20
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Abstract

The voltage variation problem at the point of common coupling (PCC) in a grid-connected wind turbine is investigated. The voltage variation problem is one of the most frequent power quality issues for the grid connection of large amounts of input power in a weak grid. Through the simplified modeling of the wind turbine and power network, the magnitude of PCC voltage variation is calculated by using the equivalent circuit parameters and output power of the wind turbine. The required amount of reactive power that can compensate the voltage variation is also presented analytically by using the vector diagram method. The proposed calculation and compensation method of the PCC voltage variation is verified by computer simulations and experiments.

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References

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  2. Compensation of Unbalanced PCC Voltage in an Off-shore Wind Farm of PMSG Type Turbines vol.20, pp.1, 2015, https://doi.org/10.6113/TKPE.2015.20.1.1
  3. Power Smoothening Control of Wind Farms Based on Inertial Effect of Wind Turbine Systems vol.9, pp.3, 2014, https://doi.org/10.5370/JEET.2014.9.3.1096