TY - GEN
T1 - Analysis of the Fluctuation Band of the Boundary of the Stability Domain for the Wind Power Grid-Connected System Under Stochastic Disturbances
AU - Jin, Yexuan
AU - Yang, Nan
AU - Zhang, Xiahui
N1 - Publisher Copyright:
© 2026 IEEE.
PY - 2026
Y1 - 2026
N2 - Following grid connection, stochastic disturbances may cause the boundary of stability domain (BSD) of wind power grid-connected system to deviate from a single deterministic curve. To characterize this uncertainty, this paper introduces a Wiener-process-driven local active power perturbation into the system model and proposes a fluctuation band of the boundary of stability domain (BSD-FB). Mean and mean-square stability conditions are derived to constrain the admissible disturbance intensity. Simulations on a two-machine equivalent system show that stochastic disturbances broaden the deterministic BSD into a band-shaped domain, and the conservative boundary can provide a robust reference for stability margin evaluation. The proposed method is intended for local uncertainty-aware margin characterization near the deterministic critical boundary, rather than a complete nonlinear transient stability criterion.
AB - Following grid connection, stochastic disturbances may cause the boundary of stability domain (BSD) of wind power grid-connected system to deviate from a single deterministic curve. To characterize this uncertainty, this paper introduces a Wiener-process-driven local active power perturbation into the system model and proposes a fluctuation band of the boundary of stability domain (BSD-FB). Mean and mean-square stability conditions are derived to constrain the admissible disturbance intensity. Simulations on a two-machine equivalent system show that stochastic disturbances broaden the deterministic BSD into a band-shaped domain, and the conservative boundary can provide a robust reference for stability margin evaluation. The proposed method is intended for local uncertainty-aware margin characterization near the deterministic critical boundary, rather than a complete nonlinear transient stability criterion.
KW - fluctuation band of the boundary of the stability domain
KW - stability margin
KW - stochastic disturbances
KW - wind power grid-connected systems
UR - https://www.scopus.com/pages/publications/105045562486
U2 - 10.1109/EPSIC70071.2026.11590317
DO - 10.1109/EPSIC70071.2026.11590317
M3 - Conference contribution
AN - SCOPUS:105045562486
T3 - 2026 IEEE 3rd International Conference on Electrical Power Systems and Intelligent Control, EPSIC 2026
BT - 2026 IEEE 3rd International Conference on Electrical Power Systems and Intelligent Control, EPSIC 2026
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd IEEE International Conference on Electrical Power Systems and Intelligent Control, EPSIC 2026
Y2 - 22 May 2026 through 24 May 2026
ER -