仮想的なパラメータ変動を用いたロバスト安定性解析方法―保守性を低減化した解析方法の提案;仮想的なパラメータ変動を用いたロバスト安定性解析方法―保守性を低減化した解析方法の提案;Robust Stability Analysis Method Using Virtual Parametric Variations-sProposition of Less Conservative Analysis Method

In this paper, a robust stability analysis problem is considered. μ-Analysis is a useful tool in order to guarantee stability robustness, but obtained results by conventional procedures are sometimes conservative. On the other hand, to guarantee stability robustness of active control systems in space is extremely important. A new robust stability analysis procedure by using virtual parametric variations is proposed in order to carry out tight evaluation of the stability robustness for active control systems. Performance of the proposed procedure is verified by an example of a mechanical vibration control system.