Optimal Design of Ecological Microgrid Structure under Low-Voltage AC/DC Mixing
With the development of low-voltage AC/DC hybrid microgrid technology,the structure and management of microgrid are becoming more and more complicated.In order to improve the operation efficiency and environmental adaptability of microgrid,an optimal design scheme of microgrid grid structure is proposed.Based on the analysis of the existing microgrid architecture and 3 optimization principles,the low-voltage AC/DC dual-bus ecological microgrid architecture is designed.The experimental results show that the reliability coefficients of the optimized microgrid structure on the low-voltage AC bus,low-voltage DC bus,AC/DC converter and other key components are more than 0.95,and the detection time of the 5 fault components is less than 0.20 s,the lowest is 0.05 s.It can be seen that the network structure optimization studied not only improves the overall performance of the microgrid,but also provides an important reference for the design and implementation of the low-voltage AC/DC hybrid ecological microgrid in the future.
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