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Design of A Plant-power Fast Transfer Device

Author: YuHong
Tutor: LiuWei；XingChengQuan
School: Northeast University of Petroleum
Course: Electrical Engineering
Keywords: Auxiliary power Fast switching Concurrent capture switch Power supply switching means
CLC: TM762
Type: Master's thesis
Year: 2010
Downloads: 37
Quote: 0
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Abstract


Important plant distribution system , in order to protect the auxiliary power uninterrupted power supply, often equipped with two-way power supply : the main supply power and backup power supply , success between the two power switching device becomes continuous key to uninterruptible power supply . Many systems use power equipment for automatic switching device (BZT) to switch tasks , but for most of the auxiliary power system is the occasion of the induction motor load , using this traditional automatic switching device (BZT) , often There is a switch failed phenomena . For in-depth study and solve this problem , the subject of switching principles and practical design , development and design of a microprocessor-based auxiliary power fast switching devices . The development and design of the device is based on high-end hardware and software platform , uses a Texas Instruments digital signal processor , the software platform is a multi-tasking system . Based on analysis of existing problems cause quickly switch concurrently capture switch , slow switch to achieve the perfect transition effects . Corresponding theoretical switching criterion is given in the text . Operational requirements according to the site , the design of the device should have a variety of functions . Then , according to the functionality of the device to achieve , based on the hardware platform to of Hop Fu TMP series products , to determine the overall demand principle of the hardware module . Careful design of the software modules in assembly language and C language , for a variety of situations , switching logic requires different software design the manual switching module , accident switch module , not normal switching module , low pressure , load shedding module . These are the reliable operation of the device , quick and correct action to provide a strong guarantee . The device developed will certainly play an important role in the auxiliary power switch .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation > Automatic control of electrical equipment
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