【摘要】 通过增加积分环节,提出了改进的自适应最小控制合成算法(MCSI)作为道路模拟机试验系统的伺服控制系统外环,以克服振动台在测试中存在的未知时变参数及时变干扰的影响,以提高振动台位移跟踪精度。通过对单通道道路模拟机试验系统动力机构进行建模,并对PID、MCS和MCSI控制器进行了设计与仿真。仿真结果表明,MCS及MCSI控制器跟踪精度远远高于传统的PID控制器,而改进的MCS跟踪精度又优于MCS,并且具有在线调节参数的优点。基于快速原型的MCS算法,利用Matlab/Simulink建立振动台控制系统模块,在CCS集成开发环境中自动生成代码,然后将可执行代码下载到DSP TMS320C2812和TMS320C6713中,实现了基于MCSI的道路模拟机试验系统设计。更多还原

【Abstract】 An improved adaptive control methodology based on minimal control synthesis(MCS) for uncertain system with time varying unknown parameters and times-varying disturbances of shaking table during test was presented.The principle of traditional PID and MCS for improving the track accuracy of displacement was analyzed and compared.Minimal control synthesis integral(MCSI) was used as the outer-loop of road simulator test system servo controller.A mathematical model for actuating unit of one channel road simulator test system was built.The three controllers(PID,MCS and MCSI) were simulated.The simulation results showed that the track accuracy of displacement with MCS and MCSI was better than traditional PID,and the track accuracy of MCSI was better than traditional MCS and adaptive MCS and MCSI algorithm had a merit which could online adjust the parameters.In the end,the implementation of a rapid prototyping control system was presented.The Simulink module of road simulator test system was designed by using Matlab/Simulink,The code generated automatically in the CCS integrated development environment.The executable codes were downloaded to the Texas Instruments(TMS320C2812 and TMS320C6713).更多还原