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A Applied Design of on Line UPS

Author: SunZhe
Tutor: LiuHuaYi
School: Dalian University of Technology
Course: Control Theory and Control Engineering
Keywords: Inverter Uninterruptible power supply Phase-locked -locked Rectifier Battery
CLC: TN86
Type: Master's thesis
Year: 2007
Downloads: 633
Quote: 1
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Abstract


With the growing popularity of computer applications and the rapid technological development of the global information network , the increasingly high demand for electrical equipment on the quality of power supply , UPS digital control and intelligent monitoring has become an inevitable trend of development . UPS power supply system of modular , intelligent , green and energy efficient UPS power system development direction . The development of information technology to promote CVCF-PWM inverter power supply to the digital direction , and in many UPS uninterruptible power supply , the best performance of the online UPS , the application of the most widely used . First, the article describes the development status and future trends of the UPS power and UPS intelligent technology . Secondly , the introduction of a practical new single-phase high frequency online UPS design includes a rectifier circuit , Boost Type PFC circuit SPWM inverter circuit , the battery charge and discharge circuit design , described in a UPS application background , to explore the practical application should be considered in the problem . Again , this article describes the software implementation of the system . Software control program and control the timing , the paper details the interrupt structure , and given the software main program flow chart . The article Finally use the Orcad Pspice system simulation waveform including the experimental waveforms of the PFC boost circuit , auxiliary power supply and battery charge and discharge waveforms , the waveform of the phase-lock circuit , push-pull inverter circuit as well as the experimental waveform control circuit . Experimental results show that : the simulation verify the theoretical analysis . Better meet the low power requirements of UPS .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Power supply
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