Design Of Speed Optimization Control In Car Dumper

Now car dumper has become the material transportation equipment any other can bereplaced in thermal power, chemical industry, metallurgical industry, mining, logisticsports and so on. And it makes a significant contribution to Chinese economic construction.Due to it has some special characteristics such as huge mechanical structure, load bearingcapacity, low-speed operation, moving and braking very frequently etc., driving the cardumper must use a dual-motor synchronization control system. Recently, the multi-motorsynchronization control is becoming one of the top research issues at home and abroadgradually.This paper selects car dumper as the study object, and a plenty of literature onsingle-channel machine drive motor speed control and dual-motor synchronization controlat home and abroad are searched. According to the development of car dumper system athome and abroad，this paper cites a number of domestic and foreign advanced intelligentcontrol algorithm and its application in motor control and multi-motor synchronouscontrol.Starts with the work process of three-car dumper, according to the maximum drivingforce and driving power when car dumper works normally, the driving motor parametersare selected correctly. This paper uses the PMSM as the driving motor of car dumpersystem. Moreover, the model in the ABC three-phase coordinate system is converted intothat in the d-q two-phase coordinate system by 3/2 transformation principle.This paper designs the dual-motors car dumper driving system. First it makes oneresearch on single-channel motor control algorithm. Due to the PID control algorithm is inthe lack of adaptability, radial basis function neural network is introduced in order to tuneits three control parameters on line. Moreover，this paper analyzes the structure of radialbasis function neural network and the new control algorithm which combines the twoones.In order to improve the real-time rapid character of combined algorithm above, thispaper makes one research on a new generalized predictive control algorithm，and theestablishes the CARIMA model of a permanent magnet synchronous motor. Then simulates the algorithm by MATLAB. It proves that the single-chanel speed control of cardumper GPC is the best method. At last, the synchronization errors between the twomotors is controlled by fuzzy radial basis function neural network control methods. Thevalue of fluctuations is restricted in the range of up or down to 0, in order to ensure theconsistency of the two drive motors and the dumper systems can be long-term stable andreliable operations.In the end, in Windows XP platform, the simulation interface of car dumper speedcontrol is established using GUIDE of MATLAB software, it makes the process of controlvisible. Over the simulation interface, it proves the control system design above isfeasible.