An Intelligent Distributed Fa Fault Location Method Based on Wireless Communication
A fault location and wireless communication technology, applied in the electric power field, to achieve the effect of fast speed, small communication flow, and high fault tolerance rate of networking
Active Publication Date: 2020-12-01
南京智汇电力技术有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide an intelligent distributed FA fault location method based on wireless communication, which solves the technical problem of using topology-based wireless network communication ad hoc network architecture to realize fast fault location of fault sections in the protected area
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Embodiment Construction
[0046] Such as Figure 1-Figure 3 An intelligent distributed FA fault location method based on wireless communication is shown, including the following steps:
[0047] Step 1: Use a section switch in the overhead line to divide the ring network into several power supply sections, and set the power supply line of the power supply section as a section line;
[0048] Each section switch is equipped with a terminal, and each section switch is equipped with a set of PT and a set of CT;
[0049] Select a power source in the overhead line as the reference power source;
[0050] The terminals communicate with each other through the wireless communication network;
[0051] The terminal is used to collect the voltage analog quantity and current analog quantity of the section switch, and control the closing or opening action of the section switch to implement the protection of the adjacent section lines;
[0052] Such as figure 1 As shown, three reference power sources are used in th...
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The invention discloses an intelligent distributed FA fault location method based on wireless communication, which relates to the field of electric power technology, including that each terminal device automatically determines the direction discrimination element to be used for fault discrimination of adjacent lines according to the area topology structure; When the terminal where the system fails, mark the direction discrimination result of this terminal with the relative time stamp number based on the time when the system failure occurs, and send it to the adjacent terminal at time intervals; the terminal receives the direction discrimination result, and combines it according to the principle of the same time stamp number As a result of the direction discrimination results, the principle of longitudinal direction protection is used for fault location discrimination, which solves the technical problem of using the topology-based wireless network communication ad hoc network architecture to realize the rapid fault location of the fault section in the protected area. The invention automatically Networking, high fault tolerance rate; the present invention performs synchronization based on fault variation and does not depend on external synchronization signals.
Description
technical field [0001] The invention relates to the field of electric power technology, in particular to an intelligent distributed FA fault location method based on wireless communication. Background technique [0002] With the development of social economy and the extensive application of high-tech digital equipment, the economic losses and adverse effects caused by power interruptions and unqualified power quality are increasing. At the same time, users have higher and higher requirements for power supply quality. Accurately locating the fault point of the distribution network, quickly isolating the fault point and restoring the load power supply of the non-fault segment are important means to improve the reliability of the power supply of the distribution network. [0003] The intelligent distributed FA realizes fault location, isolation and restoration of power supply in non-faulty areas through the mutual communication between power distribution terminals in local area...
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IPC IPC(8): H04W24/04H04W84/18H02J13/00H02H7/26
CPCH04W24/04H04W84/18H02J13/00022H02J13/0004H02H7/263Y02E60/00Y04S10/20Y04S40/126
Inventor 伊瑛谭丽君邓福林张弯刘智兵胡永承
Owner 南京智汇电力技术有限公司