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Research on Adaptive Control Strategy of Microgrid Inverter based on Virtual Synchronous Generator by Zhen Cheng; Huang Lin; Wei Liang; Lan Zhu; Yunhong Zheng is a scholarly article available to read on EtoBox.

What is Research on Adaptive Control Strategy of Microgrid Inverter based on Virtual Synchronous Generator about?

The adaptive control of virtual synchronous generator (VSG) is studied in off-grid and grid-connected mode of microgrid inverter. In the mode of islanding micro-grid, the traditional control of VSG can only realize the primary frequency regulation, but cannot solve the frequency deviation caused by load fluctuation. Although the control strategy of conventional secondary frequency regulation can realize the frequency deviation-free adjustment, but there are problems such as slow adjustment speed and low control accuracy, so the frequency can not be effectively controlled. The control structure of virtual governor is adjusted according to the power frequency characteristic of VSG, and a VSG control strategy of adaptive droop coefficient is proposed, which can ensure that the micro-grid always maintain rated frequency under the condition of meeting the power demand, and implements no-deviation frequency control smoothly and quickly. When the microgrid inverter is connected to the grid, the output mutation of the distributed power supply and the disturbance of the microgrid system may cause frequency fluctuation and power fluctuation of the grid. Based on the characteristics of flexib

Author

Zhen Cheng; Huang Lin; Wei Liang; Lan Zhu; Yunhong Zheng

Publisher

ACM

Published

2022

Language

EN