基于遗传算法的电涡流测功机预测控制  

Predictive Control of the Eddy Current Dynamometer Based on Genetic Algorithm

作　　者：程广伟[1] 周志立[2] 邓楚南[3] 徐立友[2] 

机构地区：[1]洛阳理工学院机械系,河南洛阳471073 [2]河南科技大学车辆与动力工程学院,河南洛阳471003 [3]武汉理工大学汽车工程学院,湖北武汉430070

出　　处：《农业机械学报》2008年第7期18-22,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：河南省高校杰出科研人才创新工程项目(项目编号:2002KYCX010);河南科技大学重点学科建设项目(项目编号:20030110)

摘　　要：利用电涡流测功机加载转矩对外控输入电压的响应特性,建立了电涡流测功机预测控制的动态矩阵,采用遗传算法对动态矩阵控制(DMC)的参数进行了整定,在对电涡流测功机的机械特性进行研究的基础上,对动态矩阵预测控制方法在电涡流测功机控制中的应用进行了研究。仿真试验表明,采用基于遗传算法整定DMC参数设计的DMC控制器进行DMC控制,转矩从零上升到320N·m 用时约800ms,比不采用DMC控制时提高了60%,控制稳定时转矩误差为10N·m 。According to the response eddy current dynamometer, characteristics of the load torque to the external input voltage by the the dynamic matrix for predictive control of the eddy current dynamometer was established. The parameters of the dynamic matrix control （DMC） were tuned by adopting genetic algorithm. Based on the research of the mechanical characteristics of the eddy current dynamometer, the application of the dynamic matrix predictive control method on the eddy current dynamometer was studied subsequently. The simulation results show that the time-consuming of raising the turning torque from zero to 320 N·m is about 800 ms by using the DMC controller based on the genetic algorithm. The efficiency is improved by 60% and the torque error is 10 N·m under stability control.

关 键 词：电涡流测功机 动态矩阵控制 遗传算法 动态特性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]