An active damping technique for multiple grid-connected converters

  title={An active damping technique for multiple grid-connected converters},
  author={Hsin-Chih Chen and Po-Tai Cheng},
  journal={2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia)},
The LCL-filter is one of the methods to reduce the size of the filter inductor but it leads to resonance in the system. The resonance usually results in unstable system and triggers the over-current protection. An active damping technique based on the virtual resistor is provided in this paper. The concept and the mathematical analysis of the proposed method are explained, and then the stability of the single converter operation and multiple grid-connected converter operation are analysed… CONTINUE READING


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