Study On Synchronous Motor Field Oriented Control System For Bsg Hybrid Vehicle

Saving energy and reducing automobile emissions are a prerequisite to achieve sustainable development, especially in recent years, oil resources and the environmental crisis, making this topic became a hot spot. The emerging hybrid car on the advantages of energy saving and emissions reducing is gradually reflected in.With the domestic large and medium cities in the proliferation of car ownership, Traffic jams and red traffic lights caused by the engine idle long run, makes fuel consumption and harmful to the environment are gradually increasing, while the BSG (Belt Driven Starter Generator) hybrid technology can be a good solution to this the focus of community concern.Firstly the dissertation analyzed the typical structural characteristics of hybrid cars, summed up the advantages of hybrid cars. BSG hybrid technology with a small modification to the original car, low cost, relatively simple control strategy, and many other advantages, it would become the research hot spots. In this dissertation, a certain style of BSG hybrid car using synchronous motor vector control theory has been studied. The rotor magnetizing-flux-oriented control of synchronous motor mathematical model has also been given. Based on space vector pulse width modulation (SVPWM) techniques, vector control theory of the architecture have been set up, in the Simulink environment, electrical excitation synchronous motor field-oriented control system simulation model has also been given. And a lot of simulation researches have been done based on these models. The digital signal processor TMS320F2812 produced in TI company was used as kernel control chip to design the motor drive controller. And some essential circuits of the controller were described, such as detection circuit, CAN communication circuits, power driver circuit. Software was modular in design, also gived the software flow chart.The experimental platform has been briefly introduced in this dissertation, the components of the platform and its functions were summarized later. Finally, the motor drive controller and control algorithm were experimentally studied in this experiment platform. Motor control system closed-loop control was implemented. Experimental results and data were obtained for further research and improve the work of laying the foundation.