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Shanghai City and Countryside Distribution Network Data Acquisition and Failure Diagnosis System Research and Design

Author: HuLi
Tutor: WuGuoZhong；ZuoLiPing
School: Zhejiang University
Course: Electrical Engineering
Keywords: SCADA system Data acquisition Fault Diagnosis Expert system Transmission network
CLC: TM76
Type: Master's thesis
Year: 2009
Downloads: 37
Quote: 0
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Abstract


Traditional grid accident judgment based on information extracted from the SCADA system switch and protection , but in fact , the information collected by the SCADA system is quite incomplete , specifically automatic device for the analysis of failure - Fault Recorder collecting information and processing results only as a post-accident analysis of the fault , did not play a role in a real-time diagnostic accident , so study the distribution network data acquisition and fault diagnosis system , the transformation of the city network and rural network all over the country have an important the practical significance . Combined in a lot of 10kV power grids as research background , detailed design of 10kV power grid SCADA system data acquisition and communication program , and fault diagnosis system for in-depth study . This article first the grid SCADA structure combined with a lot in Shanghai on the 10kV grid D-SCADA system configuration and function requirements to carry out a detailed analysis ; then study the composition of the distribution automation network data acquisition system , the individual acquisition modules detailed analysis, while in accordance with the characteristics and structural hierarchy of the network communication , the selection and design of the layers of a communication specification . SCADA system and fault information system dual channel in fault diagnosis software design , system architecture using expert system technology , hierarchical distributed design , in line with the idea of ??using the full range of fault information , the use of the control strategy of forward and reverse mixed reasoning forward data-driven , action switching and protection of information and to reverse reasoning authentication based on expert rules , combined with fault recorder information , assess status Finally, detailed , clear diagnostic results and equipment . Compared with the traditional power grid fault diagnosis system , the system either in real-time , intelligent , reliability , and flexibility have a significantly enhanced .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation
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