Distributed intelligent self-recovery system and method
A self-recovery and distributed technology, applied in the field of power distribution network, can solve problems such as the complex structure of distribution network and the inability of centralized intelligent mode to meet real-time and massive information requirements, so as to improve the reliability of power supply, low cost, and intermediate The effect of fewer links
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Embodiment 1
[0043] Such as Figure 1 to Figure 2 Shown is an embodiment of the distributed intelligent self-recovery system of the present invention, which includes a topology line, a regional power distribution terminal, and a plurality of unit power distribution terminals communicating with the regional power distribution terminal:
[0044] The unit power distribution terminal collects information collection and fault detection of adjacent switches and uploads it to the regional power distribution terminal in the format of GOOSE information, and accepts the control commands sent by the regional power distribution terminal;
[0045] GOOSE information interaction between regional power distribution terminals and all unit power distribution terminals is used for fault location, fault isolation and power supply restoration of non-faulty sections in the entire region;
[0046] The regional power distribution terminal sends the processing results to the main distribution network;
[0047] Both the un...
Embodiment 2
[0052] This embodiment is an embodiment of a distributed intelligent self-recovery method, including the following steps:
[0053] S10. Regional power distribution terminal locates the fault section;
[0054] S20. Regional distribution terminal control switch trips to realize fault isolation and form faulty and non-faulty sections;
[0055] S30. The regional power distribution terminal controls the non-faulty section in step S20 to restore power.
[0056] The invention realizes in-situ protection of the distribution automation system based on peer-to-peer communication for the distribution terminal at the distribution site, and automatically performs fault judgment, fault isolation and network reconstruction through data information such as fault current and active power direction.
[0057] In step S10, the fault location includes the following steps:
[0058] S11. The regional power distribution terminal summons the recording data of the whole region, and each unit power distribution te...
Embodiment 3
[0071] Such as image 3 Shown are application embodiments of the distributed intelligent self-recovery system and method of the present invention. In this embodiment, circuit breakers UR1, UR2, UR3, UR4, UR5, UR6, UR7 are used as section switches, and the power distribution terminal of UR1 is used as the area The type distribution terminal is responsible for completing the information interaction with all unit type distribution terminals in the area, collecting the position of each switch, and determining the position of the contact switch in the positioning area through logic.
[0072] When a permanent fault occurs at F1, UR1, UR2, and UR3 each calculate its own state, and each unit type power distribution terminal sends its own fault status information to its neighboring unit type power distribution terminal in real time. by image 3 The middle fault location shows that UR1, UR2 are overcurrent and the power direction is positive, and UR1 is used as the first switch connected to...
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