A New Hybrid PLL for Interconnecting Renewable Energy Systems to the Grid

@article{Hadjidemetriou2012ANH,
  title={A New Hybrid PLL for Interconnecting Renewable Energy Systems to the Grid},
  author={Lenos Hadjidemetriou and Elias Kyriakides and Frede Blaabjerg},
  journal={2012 IEEE Energy Conversion Congress and Exposition (ECCE)},
  year={2012},
  pages={2075-2082}
}
There is a need to develop new control strategies for interconnecting renewable energy systems (RESs) to the power grid due to the continuously increasing penetration of RES and, in particular, of wind power systems. The control strategies are typically based on a fast and accurate detection of the phase angle of the grid voltage which may be estimated by using a phase-locked loop (PLL) control circuit. The performance of the PLL under normal and abnormal operational conditions is a crucial… CONTINUE READING