Multi-loop control algorithms for seamless transition of grid-connected inverter

@article{Lei2010MultiloopCA,
  title={Multi-loop control algorithms for seamless transition of grid-connected inverter},
  author={Qin Lei and Shuitao Yang and Fang Zheng Peng},
  journal={2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)},
  year={2010},
  pages={844-848}
}
The grid-connected inverter works as a controlled current source in grid-connected mode, while operates as a controlled voltage source in standalone mode. So in case of utility faults or intentional islanding, the inverter has to change its control strategy from current control to voltage control. This paper first proposed a multi-loop voltage controller with capacitor differential voltage feedback inner loop and voltage reference feedforward for standlone system especially designed to maintain… CONTINUE READING
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Analysis and design of a multiple feedback loop control strategy for single-phase voltage-source UPS inverters

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