Small-Signal Stability of Microgrids in DAE form under DoS Attacks with Contraction Analysis.
IEEE PES Innovative Smart Grid Technologies Conference（2024）
摘要
This paper studies the small-signal stability of a distributed secondary controlled islanded AC microgrid under Denial-of-Service attacks in a semi-explicit nonlinear differential-algebraic equation form using contraction theory. Based on norm-2 matrix measurement of system generalized unreduced Jacobian, the stable region comprising two stable equilibrium states is determined by establishing relationship between secondary controller parameter and DoS attack duration factor. A numerical test in a 9-bus inverter-based microgrid is conducted for performance evaluation. The result shows the proposed method can find a sufficient condition for constructing stable regions under various DoS attack durations.
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关键词
Microgrid,Denial Of Service,Small-signal Stability,Secondary Control,Attack Duration,Differential-algebraic Equations,Stable Performance,Local Control,Ordinary Differential Equations,Equilibrium Point,Jacobian Matrix,Algebraic Equations,Maximum Duration,Communication Links,Primary Control,Linear Matrix Inequalities,Cyber-physical Systems,Time-varying Model,Sufficient Conditions For Stability,Droop Control,DoS Attacks,Islanded Microgrid,Load Buses,Auxiliary Matrix,Occurrence Of Attacks,Constant Power Loads,Laplacian Matrix,Differential Equations,Slope Factor,Susceptance
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