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针对多变量频域Nyquist类设计法中的Hawkins伪对角化法,给出了一种改进的动态伪对角化方法来提高系统的对角优势度以改善系统的解耦性与鲁棒性并进行了相关分析.最后将这种动态伪对角化方法用于某型航空发动机稳态控制器的设计,仿真结果表明:相较于标准Hawkins法,改进的动态伪对角化所给出的补偿系统具有较好的动静态解耦性与鲁棒性.
Aiming at the Hawkins pseudo-diagonalization in the Nyquist design of multivariable frequency-domain, an improved dynamic pseudo-diagonalization method is proposed to improve the diagonal dominance of the system to improve the decoupling and robustness of the system And the correlation analysis is done.Finally, this dynamic pseudo-diagonalization method is applied to the design of steady-state controller for a certain type of aero-engine. The simulation results show that the improved dynamic pseudo- diagonalization is better than the standard Hawkins method The compensation system has good dynamic and static decoupling and robustness.