Synchronous Control of Dual Motor with Master-Slave and Cross-Coupling Methods

Abstract

AbstractThis paper presents the synchronous efficiency of two synchronous control methods based on a PID controller for the model of two electric motors with variable load. The two synchronization methods used are the Master-Slave method and the Cross-Coupling method. First, a mathematical model of the motor, load variation, and system is established. Then, a combine with Motor parameters throughs identification to conduct system simulation. Simultaneously, the design and synchronous control for this two-motors system were also carried out. Moreover, the characteristics and properties of the Master-Slave and Cross-Coupling synchronization methods are studied and analyzed. The Master-Slave method uses a sample Motor and is followed by a dependent Motor that is operated on the signal of the sample Motor. The Cross-Coupling method is based on the signal error of each motor compared to the desired value and the error between the motors. Finally, the evaluation of the effectiveness of these two methods is made based on the results obtained from simulation and experiment. From simulation and experimental results, it shows that the Master-Slave and Cross-Coupling methods help to solve phase synchronization and error. The difference between the two motors, the Cross-Coupling method also solves the problem of the response time of the two motors and the error at the start of the two motors simply.KeywordsDual motor systemMaster-slaveCross-couplingSynchronization controlPID controller