Cooperative self-healing system and method

Abstract

The invention discloses a cooperative self-healing system and method, and the system and method achieve the positioning of a fault region, the isolation of the fault region and the power restoration of a fault upstream through the mutual cooperation between a main station system and a power distribution remote terminal and the local feeder self-healing power distribution remote terminal, and achieve the optimal power restoration of a fault downstream through the feeder self-healing function of the main station system. The problem that downstream transfer supply of a fault area cannot be judgedthrough local feeder self-healing, the contact line loading capacity and the load margin need to be considered, and downstream optimal power supply recovery of the fault area cannot be achieved is solved. The downstream power supply recovery of the fault area needs scheduling, and an operator can execute the power supply recovery only after confirmation, so that the uncertainty of the system in the recovery process is further reduced, the robustness of the system recovery is improved, and safer and more reliable power supply recovery of the downstream of the fault area is realized.

Description

technical field [0001] The invention relates to a power distribution automation method, in particular to a cooperative self-healing system and method. Background technique [0002] Guangdong Province has started feeder self-healing construction work since 2009. The construction mode is typical on-site feeder self-healing. Self-healing is carried out in the mode of on-site isolation, fault upstream restoration of power supply, local isolation of a small number of lines, fault upstream and downstream power restoration. The feeder self-healing work in Zhongshan and Zhuhai has reached the domestic leading level in terms of coverage and fault handling. Other prefectural and municipal bureaus gradually carry out voltage-time and voltage-current-time feeder self-healing according to the requirements of the provincial company's Biotechnology Department. [0003] Feeder self-healing is an important part of distribution automation construction. It refers to the use of automation devi...

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Problems solved by technology

[0006] According to the effect of feeder self-healing construction of power supply bureaus in various cities in Guangdong, combined with the construction and management mode of feeder self-healing, there are currently the following problems in feeder self-healing: (1) The centralized feeder self-healing mode relies on the master station and communication to realize fault handling, and the fault handling process is relatively complex. many

(2) The local feeder self-healing mode cannot consider the load capacity and load margin of the connecting line transferred to the downstream of the fault area, and cannot realize the optimal restoration of power supply downstream of the fault area

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