Research on power distribution control of parallel microgrid based on adaptive capacitor algorithm Online publication date: Fri, 17-Feb-2023
by Zhanying Tong; Liutong Xu
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 24, No. 1, 2023
Abstract: In order to improve the stability and flexibility of microgrid operation, a droop control strategy for parallel microgrid power distribution based on adaptive virtual capacitor algorithm is proposed. The adaptive virtual capacitor is connected in parallel at the output of microgrid inverter to achieve accurate reactive power sharing of microgrid. The experimental results show that the average power sharing error of distributed generation under the control of adaptive virtual capacitor algorithm is 1.05%, which can effectively realise the accurate power distribution of microgrid and effectively avoid the problem of voltage drop. Add additional load to the system, and the distributed generation tends to be stable within 0.1s after a short transient process. The adaptive virtual capacitor algorithm has good adaptability to load changes, can effectively realise the accurate power distribution of parallel micro grid, and provides a new research idea for the operation optimisation of smart grid.
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