HPPD-Type Fuzzy State-FDI Estimation and Resilient Control of Cyber-Physical DC Microgrids With Hybrid Attacks

Abstract

This article adopts a novel homogeneous polynomial parameter-dependent (HPPD) codesign method to deal with the security control problem of the Takagi–Sugeno fuzzy system of cyber-physical dc microgrid under hybrid attacks. A new fuzzy control scheme and state estimation scheme, i.e., a function whose homogeneous polynomial parameters depend on the fuzzy membership function normalized at the current time, is proposed to achieve the combined goal of relaxed control and accurate estimation. Relaxed exponential stability conditions are then derived with less conservatism than the existing conditions. In addition, an HPPD codesign method is further proposed. The effectiveness and superiority of the results in this article are illustrated through simulation examples.