【作者】 贾志斌；

【导师】 熊诗波； 廉自生；

【作者基本信息】 太原理工大学 ， 机械电子工程， 2003， 硕士

【摘要】 本文通过对带式输送机的动态特性和机械电子式软起动装置工作原理的分析，建立了机械电子式软起动装置的数学模型，利用Matlab/Simulink对其进行了系统仿真。 在分析带式输送机的工作过程的基础上，对机械电子式软起动装置的控制系统进行了研究，对控制系统进行了硬件与软件设计。使用可编程控制器对变频器的输出频率进行控制，实现对调速电机转速的控制。调速电机与主电机的转速经差动行星轮系的速度合成，可使传动系统在很大范围内无级调速，实现对负载的可控起动。 以带式输送机实验台为负载进行了机械电子式软起动装置的模拟试验，对传感器进行了选型设计，对试验数据进行了采集与分析，确定了合理的起、制动速度曲线，求出双电机驱动功率的最佳配比。 通过系统建模仿真与实验室模拟试验，结果表明，机械电子式软起动装置能够有效的控制带式输送机起停过程的加速度，降低驱动电机的启动电流，实现带式输送机的平稳起动与停车。更多还原

【Abstract】 In the thesis, the mathematical model of mechatronics soft start equipment is constructed by the analysis of belt conveyor’s dynamic properties and the working theory of the mechatronics soft start equipment, the system simulation is conducted in Matlab/Simulink.On the basis of analyzing the working process of belt conveyor, the control system of the mechatronics soft start equipment is studied , the hardware and software are designed for control system. The programme logic controller is utilized to control the inverter’s output frequency which accomplishes controlling the velocity of speed-controlling asynchronous moter .The velocity between main asynchronous moter and speed-controlling asynchronous moter is composed by way of the differential planetary gear train , the tranmission system is made to regulate velocity stepless in large scope which succeed in controlling starting progress of load.The Simulated test of the mechatronics soft start equipment is made regarding the experimental platform of belt conveyor as load, the sensor design is had for selecting type ,the testing datum are gatherd and analyzed, the rational curve of velocity in the starting and braking progress are gained ,the best matching ratio of driving power for the double asynchronous moters is found.By means of system simulation and simulated test in laboratory ,the result indicates that mechatronics soft start equipment can control the acceleration of belt conveyor in the starting and braking process and reduce the startup current for driving moter which achieves the belt conveyor starting and braking steadily.更多还原