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《AUTOMATION OF ELECTRIC POWER SYSTEMS》 2000-13
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REALIZATION METHOD OF ADAPTIVE PROTECTION SYSTEMWITH DISTRIBUTED STRUCTURE FOR LARGE-SCALE TRANSMISSION NETWORK

Cao Guochen, Han Let, Zhu Bin (Northeast China institute of Electric Power Engineering, Jinn 132012. China)  
In this paper, from control system angle and based on the pattern recognition techniques and disturbance areaconcept, the realization method of an adaptive protection system with distributed structure is studied for large-scaletransmission network. According to the inherent distributed characteristic of power system, by employing the computers indispatch centers of different levels of control to form a computer network system and unifying the computers and protectiverelays in power station or substation as cell--adaptive controllers, the distributed structure of adaptive protection system forlarge-scale transmission network is proposed. According to the disturbance area concept, the partial control method, only online modifying the setting of cell--adaptive controllers affected by the changes of power system operation condition, is given.Based on the pattern recognition techniques, the operation condition changes of power system is transformed intocorresponding operation pattern. According to the operation patterns, the method, off-line calculating, storing in scatteredand on-line using the setting of relays in disturbance areas, is presented. The adaptive protection system in this paper has thecharacteristics of faster on--line setting and coordination, smaller storage and exchange information needed.
【CateGory Index】: TM773
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