| The digital control is the main direction in the development of controlling electronic Inverter .The digital control system has advantages of flexible control, high integration, strong anti-disturb ability, the realization of advanced control arithmetic and the convenience of real-time control .The system based DSP can realize flexible and precise real-time control as well as malfunction monitor by software.This article introduces digital control technologies of a single-phase SPWM inverter based on TMS320LF2407. Firstly, this paper begins with the analysis of the inverter every part's characteristic. After that, mathematics model and MATLAB simulation model are built up respectively which are the foundation of the whole inverter system's theoretic analysis and simulative analysis. Subsequently, it brings forward the flexible and compact design of software and hardware and founds the hardware of inverter control system based DSP. The hardware design of the control system mainly includes the composing of the DSP controller, the realization of the peripheral interface circuit, etc. The system' main part is expatiated and the total structure is offered in the software design. It also improves the corresponding arithmetic and adopts many flexible methods. The control methods and realization is introduced in detail. At last, the practical output waveforms are presented. In addition, another digital control method-the repetitive control strategy is investigated preliminary.The simulation and experiment results show the feasibility of the system. The research in the dissertation, to some extend, has paved a way for the further research, improvement and application in the digital control of inverter.
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