| With the growing popularity of computer applications andthe global information network technology is developingrapidly, the quality of electricity supply equipment to theincreasingly demanding, UPS digital control and intelligencesurveillance has become an inevitable trend of development.UPS power supply system to achieve a modular, intelligent,green and efficient energy-saving UPS power supply system isthe direction of development. The development of informationtechnology to promote the CVCF a PWM inverter to develop inthe direction of figures, and in many UPS uninterruptiblepower supply, UPS back-up-the best value, the widerapplications.The development of information technology to promote theCVCF a PWM inverter to develop in the direction of figures,and in many UPS uninterruptible power supply, UPS back-up-thebest value, the wider applications.The purpose of this paper is to introduce a practical3KW DSP-based single-phase UPS backup power design. First ofall, the paper’s first chapter on the development of UPS status,trends and future development of this paper to study thecontents, in accordance with requirements of the system isgiven the overall design of the program. Secondly, the paper’ssecond chapter on a practical3KW DSP-based single-phase UPSback-up power-the design, including EMI filtering, rectifier,SPWM inverter circuits, battery charging and discharging ofthe circuit design, switch and inverter Transformerparameters, the liquid crystal display circuit design,battery charging circuit and SPWM inverter circuit is thefocus of this design, the paper also explored the practicalapplication should consider the issue. Again, this thirdchapter of the system software; introduced in detail thefunctions of TMS320F2812, the main program is a flow chartand software subroutine flow chart; control in the discussionof the software package, a detailed description of theinverter Control strategy, including the SPWM wave of DSPsoftware and digital PID software design and tuning method. |
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