| With the continuous development of technical control equipment,The control system of Multi-motor also has been Widespread appearanced and presented in more and more industrial automation production systems,before the physical motor determines production or before the selection of multi-motor control system control algorithm,if the algorithm effect of the pre-simulation evaluation and parameter tuning,can greatly reduce the system development cycle and cost,in response to this demand,Domestic and foreign scholars have researched and designed the development technology of servo motor virtual research platform,and developed platforms based on different language algorithms based on different software designs,but most of the platforms have strong hardware dependence,poor simulation of actual working conditions,and can only conduct performance tests of a single motor without the introduction of multi-motor synchronous control algorithms,which cannot meet the needs of today’s multi-motor synchronous control performance verification.In order to solve the above problems,the project aims at the development of a virtual research platform for multi-motor synchronous vector control technology,establishes a general digital simulation model of single-motor vector control,and introduces a multimotor synchronous control algorithm to design a multi-motor synchronous control general model and GUI interface to complete the construction of a virtual research platform,so as to use this platform to test the performance of motors under different loads,adjust and obtain appropriate controller parameters,test motor performance by dragging experiments,and verify the relevant theories of each control algorithm.The main ideals of the paper is are summarized as:1.Using the precise mathematical model of a PMSM as a foundation to investigate coordinate transformation,positionless sensor control algorithm and vector control principle,the switch and switch constant are designed in MATLAB/SIMULINK to realize the switching of different control algorithms,and the PMSM vector control system with three-ring control structure is established by introducing filters,notches,two-mass inertial model loads,and drag load motors required for towing experiments.Based on the single-motor PMSM vector control system,a modular introduction method of multimotor control algorithm is proposed,and a digital simulation model of multi-motor synchronous vector control is designed and established.2.Develop a comprehensive structure for the simulated research platform of multimotor synchronous vector control technology utilizing MATLAB/App Designer,study the key technologies of man-machine interface,design the GUI interface corresponding to multiple modules such as control algorithm selection,parameter setting,and simulation result output,study the multi-APP window data transmission technology and optimize the interface,design the real-time display module of the waveform of simulation results,introduce the sine sweep module to analyze the frequency domain stability of the control system.The control system’s frequency domain model is examined and incorporated into the system to facilitate analysis in the frequency domain,the tuning method of inner membrane control parameters is studied and the theoretical program is introduced into the platform,the FFT spectrum analysis is studied and the current FFT analysis module is built.3.Study the connection mode between the drive motor and the load motor in the towing experiment and the principle of the towing experiment,analyze the torque transmission principle between the two motors in the towing experiment,build the torque control model of the load motor and design the coupling transmission model to connect the drive motor and the load motor,verify the correctness of the drag experimental model with the speed towing control test,use the fast Fourier change FFT to analyze the current simulation data,design the filter to filter the current filter,and obtain the accurate current magnitude. |
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