| Permanent magnet synchronous motor(PMSM) speed control system with its small torque ripple and high positioning accuracy is widely used in the field of high performance speed control. Although, compared with DC motor speed control system, permanent magnet synchronous motor has high-performance control strategy, because of the complexity of the control strategy, the structure of permanent magnet synchronous motor speed control system is more complex and huge, increased the difficulty of the speed control system design and test. Meanwhile, the simulation platform and hardware test platform tend to be independent of each other in the traditional permanent magnet synchronous motor speed control system, which makes the system development of low efficiency, high cost of time.In order to simplify design and testing process of permanent magnet synchronous motor speed control system, to realize the organic combination of simulation and hardware testing. This paper uses the method of based model design, according to idea of from simple to complex. From the local to the whole, the permanent magnet synchronous motor control experimental platform is designed and developed, to verify the method of feasibility and effectiveness, which uses based Model design method to realize permanent magnet synchronous motor speed control. The main work of this paper includes:(1) The working principle of permanent magnet synchronous motors is described and the mathematical model of permanent magnet synchronous motor is given, the vector control principle whose core is coordinate transformation is analyzed, and SVPWM modulation technology and digital implementation method are introduced.(2) The speed control system of permanent magnet synchronous motor is built with TMS320F2812 as control core, power drive system of permanent magnet synchronous motor is built with IRAMS06UP60 B as core, hardware system development permanent of magnet synchronous motor speed control experiment platform is completed.(3) The implementation method of the control algorithm for PMSM is designed, using model based design, and from simple to complex, from the local to the whole way, the progressive speed control system of permanent magnet synchronous motor vector control is built, and gradually complete the implemented software of control algorithm.(4) A GUI interface for an experimental platform based on the permanent magnet synchronous motor is designed in the MATLAB/GUI environment, mainly including the main interface design, the simulation interface design and the hardware-in-loop interface design. The experimental platform which adopts the model-based design approach establishes a link between offline simulation and hardware testing and also eliminates the traditional process of manually writing C code.A speed control experimental platform of PMSM based on model is built in this paper, which verifies the feasibility of simplifying the development and testing of PMSM speed control system with MBD. This platform built provides an effective method to develop AC speed control system efficiently. |
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