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
Variable nozzle turbocharger (VNT) can improve the low-speed performance and emission of turbocharged diesel engine. Turbine experiment of JK90S turbocharger with rotating vanes was undertaken.
将所设计的JK90S转叶式可变喷嘴涡轮增压器进行了涡轮性能试验。
3
The results also show that the performance of variable working condition of hybrid system can be improved by changing the rotational speed of gas turbine.