化工过程多回路PID控制系统模式切换参数自整定
王建松,许锋,罗雄麟

Controller parameter self-tuning when control loop mode switching for multi-loop PID control system of chemical process
Jiansong WANG,Feng XU,Xionglin LUO
图6 正Nyquist判据与稳定性之间的Venn图
Fig.6 The Venn diagram between direct Nyquist criterion and system stability