Transient Stability Emergency Control Strategy for Microgrids based on Parameter Rolling Regulation

This paper proposes an online emergency control strategy for microgrid transient stability based on parameters rolling regulation. First, the stabilizing condition of the voltage-controlled inverter with a current limiter is analyzed. Second, a parameter flexible rolling regulation strategy considering diverse constraints is proposed. Finally, a power trajectory prediction model based on an improved spatial-temporal graph convolution neural network is established, which provides the regulation basis for the proposed rolling control. The simulation results on the modified DongAo Island microgrid show the high reliability and excellent performance of the proposed strategy during the online application.