Research on the synchronization control strategy for microgrid-connected voltage source inverter
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AbstractMicrogrid is intended and featured to be able to operate in both grid-connected and islanded mode to ensure high quality and reliable power supply. In order to achieve stable operation of the microgrid-connected voltage source inverter (MVSI) units under paralleled or grid-connected mode, a novel synchronization method based on droop control is proposed in this paper. The difference of phase and amplitude between different MVSI units is detected and is used to calculate the output frequency and amplitude of the MVSI. This method can smooth transfer the MVSI units from standalone mode to paralleled mode. The simulation and experimental results show that the proposed method is effective in achieving paralleled operation of the MVSI units.
CitationYuanzhi, C., Yanting, H., Rui, H., & Jianfei, C. (2015). Research on the synchronization control strategy for microgrid-connected voltage source inverter. Power Electronics for Distributed Generation Systems (PEDG), 2015 IEEE 6th International Symposium on, 1-5. doi: 10.1109/PEDG.2015.7223062
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