Intelligent longitudinally-interconnected feeder automation system
A feeder automation and vertical technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve the problems of power failure of the whole line, long fault isolation time, affecting the reliability and quality of power supply, so as to reduce the power failure time and improve the reliability of power supply sexual effect
Inactive Publication Date: 2013-01-16
JIANGSU ELECTRIC POWER COMPANY YANGZHOU POWER +3
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[0003] Several feeder automation systems that are common at present include master station centralized feeder automation (DA) system, voltage-type feeder automation system with time limit, feeder automation system based on recloser, watchdog circuit breaker mode feeder automation system, fault indicator mode system, etc., but the disadvantages of several feeder automation methods currently used are also obvious, such as long fault isolation time, requiring a power outage of the entire line, and even requiring multiple overlaps to troubleshoot, or manual inspection methods to troubleshoot fault areas, affecting power supply reliability and quality of power supply
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[0032] Below in conjunction with accompanying drawing this patent is described further.
[0033] An intelligent vertically interconnected feeder automation system, including intelligent power distribution terminals, and information interaction between adjacent intelligent power distribution terminals located in the same power supply topology network through vertical communication protocols Carry out comprehensive processing and logical judgment on the signals of itself and adjacent intelligent power distribution terminals, and realize fault location, fault area isolation and non-fault area restoration of power supply action before the substation exit switch action; and the system also provides a consideration of instantaneous An intelligent distributed first aid method for sexual failures.
[0034] The inside of the intelligent power distribution terminal is provided with a DFT algorithm module that calculates the signal of each half of the power frequency fundamental wave; th...
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The invention discloses an intelligent longitudinally-interconnected feeder automation system which comprises intelligent power distribution terminals. Information interaction is realized through longitudinal communication protocols between adjacent intelligent power distribution terminals in a same power supply topology network. When power distribution lines fail, the intelligent terminals realize actions of fault positioning, faulted area isolation and non-faulted area power restoration before actions of an outlet switch of a transformer station through comprehensive processing and logic judgment of signals of the intelligent terminals and signals of the adjacent intelligent power distribution terminals. The intelligent longitudinally-interconnected feeder automation system realizes information interaction with the adjacent intelligent power distribution terminals in the same power supply topology network through the efficient longitudinal communication protocols. By the intelligent longitudinally-interconnected feeder automation technology that the intelligent power distribution terminals perform comprehensive processing and logic judgment, zero-time power failure of the non-faulted areas can be realized, power supply reliability is effectively improved, and power failure time is reduced.
Description
technical field [0001] The invention relates to power distribution automation technology, in particular to an intelligent vertically interconnected feeder automation technology, which belongs to the field of electric power system and its automation. Background technique [0002] As the last link of the power transmission and distribution system, the degree of automation of the distribution network is closely related to the quality and reliability of power supply and consumption. The smart distribution network is an important part of the smart grid construction. It integrates modern computer technology and communication network technology, and performs remote real-time monitoring, coordination and control of equipment on the distribution network. Reliability, expansion of power supply capacity, and an important means to achieve efficient and economical operation of distribution networks. [0003] Several feeder automation systems that are common at present include master sta...
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IPC IPC(8): H02H7/26
Inventor 丁建忠沈浩东周捷刘明祥陈艳周峰夏燕东
Owner JIANGSU ELECTRIC POWER COMPANY YANGZHOU POWER
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