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The aircraft power system contains a high proportion of power electronic devices and exhibits strong nonlinear characteristics. To address the insufficient robustness of traditional linear control strategies under parameter deviations in nonlinear systems, this paper proposes a hybrid robust control strategy integrating passivity theory and a virtual synchronous generator (VSG). By establishing the system’s Euler–Lagrange model, the passivity characteristics of the system are analyzed from an energy exchange perspective, and damping gain parameters incorporating feed-forward control advantages are designed accordingly. Under constraints of filter model parameter deviations, a two-stage design method for dual damping gains is proposed by combining requirements for stability, dynamic response, and cascaded control. This effectively balances system stability and control bandwidth. The method enhances robustness under parameter deviation conditions through optimizing the amplitude-frequency characteristics of damping gains, ensuring the system maintains passivity while preserving excellent dynamic performance and disturbance rejection capability. The effectiveness of the proposed control strategy is validated through MATLAB/Simulink time-domain simulations.

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Robust Passivity-Based Control Strategy and Parameter Design Methodology for Aircraft Power System

  • 会议论文

  • 发表日期：

    2026年

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  • Ensheng Zhao,
  • Haitao Yu,
  • Bo Cheng,
  • Tao Xu,
  • Zhengyu Zhou,
  • Fanghua Cao

摘要

The aircraft power system contains a high proportion of power electronic devices and exhibits strong nonlinear characteristics. To address the insufficient robustness of traditional linear control strategies under parameter deviations in nonlinear systems, this paper proposes a hybrid robust control strategy integrating passivity theory and a virtual synchronous generator (VSG). By establishing the system’s Euler–Lagrange model, the passivity characteristics of the system are analyzed from an energy exchange perspective, and damping gain parameters incorporating feed-forward control advantages are designed accordingly. Under constraints of filter model parameter deviations, a two-stage design method for dual damping gains is proposed by combining requirements for stability, dynamic response, and cascaded control. This effectively balances system stability and control bandwidth. The method enhances robustness under parameter deviation conditions through optimizing the amplitude-frequency characteristics of damping gains, ensuring the system maintains passivity while preserving excellent dynamic performance and disturbance rejection capability. The effectiveness of the proposed control strategy is validated through MATLAB/Simulink time-domain simulations.