State Estimation of the DC Microgrids with Constant Power Loads under DoS Attacks

This paper investigates the state estimation problem for the DC microgrids with constant power loads in the case of denial-of-service attacks. By using the centralized control schemes, the DC microgrids could send measurements to the control center through a transmission network. In addition, according to the nonlinear and cyber attacks nature of the DC microgrids with multiple constant power loads, a Cubature Kalman filter is designed to estimate the DC microgrids state and be adapted to the packet losses caused by cyber attacks. Finally, simulation studies are given to illustrate the effectiveness of the designed filter.