Sampling Period Online Adjusting-Based Hysteresis Current Control Without Band With Constant Switching Frequency

@article{Wu2015SamplingPO,
  title={Sampling Period Online Adjusting-Based Hysteresis Current Control Without Band With Constant Switching Frequency},
  author={Fengjiang Wu and Fan Feng and Linsong Luo and Jiandong Duan and Li Sun},
  journal={IEEE Transactions on Industrial Electronics},
  year={2015},
  volume={62},
  pages={270-277}
}
In this paper, a simple digital hysteresis current control (DHCC) with quasi-constant switching frequency (SF) for the current control of a single-phase grid-connected inverter (SPGI) is proposed. The hysteresis band is cancelled, and the SF is fixed by online adjusting the sampling period. The principle of the DHCC with constant sampling period is analyzed, and the distribution of the switching period (SP) corresponding to the phase angle of the grid is derived. The rule of online adjusting… CONTINUE READING
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