一种新型调速装置的设计及模糊PID控制研究

Design of a New Type Speed Regulation Device and Research of Fuzzy PID Control

将差动轮系与液黏调速原理相结合,设计了一种无级调速装置,给出了行星齿轮机构的主要参数,并利用SolidWorks对传动结构进行了设计。利用AMESim软件与MATLAB/Simulink进行联合仿真,验证系统调速性能,在AMESim软件中建立调速系统物理模型,在MATLAB/Simulink中设计控制器。此外,为提高控制性能,提出采用模糊控制器与PID控制器相结合的方法。仿真结果表明,模糊PID控制下的系统调速更加平稳,调整时间、稳态误差与普通PID相比分别下降25%、67%。

A type of stepless speed regulation device is designed based on the differential gear train and hydro-viscous speed regulation theory,and the main parameters of the planetary gear set are determined,then transmission structure is designed in SolidWorks software.In order to verify the performance of system speed regulation,a co-simulation is carried out with AMESim and MATLAB/Simulink,the physical model of speed regulation system is built in the AMESim software,the controller is designed in MATLAB/Simulink.Furthermore,in order to improve control performance,the way of combining fuzzy controller and PID controller is proposed.The results of the study show that,the system speed regulation under the fuzzy PID control is more stable,the adjustment time and static error decrease by 25% and 67% respectively compared with traditional PID.