With the nonlinear and time variable characteristics of hydraulic turbine regulation system, high qualified speed adjustment system cannot be achieved with the conventional PID controller.
水轮机调节系统具有非线性和时变性的特性，传统的PID控制器无法获得高性能的调速系统。
2
Establishing an accurate nonlinear mechanism model is the key of optimal regulation in fermentation process.
建立准确的非线性机理模型是发酵过程优化调控的关键。
3
In order to realize the functions of harmonic compensation and voltage regulation for nonlinear loads, a hybrid shunt active power filter is proposed.