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DSP-based Online UPS Power Research

Author: ZouJie
Tutor: FuGuangJie
School: Daqing Petroleum Institute
Course: Power Electronics and Power Drives
Keywords: Online UPS DSP Composite control strategy Digital control system
CLC: TN86
Type: Master's thesis
Year: 2009
Downloads: 463
Quote: 3
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Abstract


Uninterruptible power supply (UPS) in the computer , communications systems , hospitals and other important power system plays a decisive role in the mains is normal or fault conditions for the load to provide reliable , clean power . With modern power electronics and information industry continues to evolve, developed suitable for practical application and development of modern technology , high-quality , high reliability UPS will become an issue of concern . In a variety of the UPS , online UPS with power failure protection , superior performance, real-time performance, high precision , so paper studies on-line UPS. In this paper, a DSP chip on-line UPS, which is a fully functional , good performance of the new UPS. With the UPS performance, accuracy, and other indicators of increasing requirements , the DSP chip applied to the UPS can be advanced control strategies is introduced into the control system , to achieve the UPS fully digital control is essential . The system uses DSP/TMS320LF2407 as UPS 's main chip, to ensure the system high-speed, real-time and reliability requirements. At home and abroad there are several commonly used sine wave inverter system control method , each control method has its advantages and disadvantages , so this paper uses an adaptation of the actual needs of the improved repetitive control and proportional control to be combined composite type control strategy, studied UPS system is fully digital control , verified by simulation validity of the method . According to online UPS power supply functional requirements , design all aspects of the hardware circuit , and gives the circuit parameters of the specific calculation process and results ; according to the functional requirements of the system is given software process ; finally designed a UPS experimental system , the experimental results show system performance indicators and function to achieve the desired objectives and requirements.

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