期刊
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
卷 66, 期 1, 页码 429-436出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAC.2020.2981348
关键词
Trajectory; Jacobian matrices; Power system stability; Measurement; Mathematical model; Stability criteria; Contraction analysis; differential-algebraic equation (DAE); linear stability; Lyapunov analysis; transient stability
资金
- National Science Foundation [ECCS-1508666]
- Massachusetts Institute of Technology/Skoltech and Masdar Initiative, Ministry of Education and Science of Russian Federation [14.615.21.0001]
- Vietnam Education Foundation
- Thomas and Stacey Siebel Foundation
- Nanyang Technological University
- Singapore National Research Foundation [EMA-EP004-EKJGC]
- Energy Market Authority [EMA-EP004-EKJGC]
- Ministry of Education
This article explores the contraction properties of nonlinear differential-algebraic equation systems, demonstrating that the reduced system contracts faster than any synthetic counterpart and highlighting the role of synthetic systems in analyzing attraction basins of nonlinear DAE systems.
This article studies the contraction properties of nonlinear differential-algebraic equation (DAE) systems. Such systems typically appear as a singular perturbation reduction of a multiple-time-scale differential system. In addition, a given DAE may result from the reduction of many synthetic differential systems. We show that an important property of a contracting DAE system is that the reduced system always contracts faster than any synthetic counterpart. At the same time, there always exists a synthetic system, whose contraction rate is arbitrarily close to that of the DAE. Synthetic systems are useful for the analysis of attraction basins of nonlinear DAE systems. As any rational DAE system can be represented in quadratic form, the Jacobian of the synthetic system can be made affine in the system variables. This allows for scalable techniques to construct attraction basin approximations, based on uniformly negative matrix measure conditions for the synthetic system Jacobian.
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