Network type protection method based on closed-loop mode operation of power network

A technology of power network and closed-loop mode, applied in emergency protection circuit devices, electrical components, information technology support systems, etc., can solve problems such as slow response time and long processing time, achieve small line impact, quickly locate faults and isolate faults , fast effect
CN103872660AActive Publication Date: 2014-06-18BEIJING CREATIVE DISTRIBUTION AUTOMATION
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
BEIJING CREATIVE DISTRIBUTION AUTOMATION
Publication Date
2014-06-18

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Abstract

A network type protection method based on closed-loop mode operation of a power network is used for a power network system which operates in a closed-loop mode. The power network system comprises multiple transformer stations and terminal units connected to the transformer stations, and is characterized in that each terminal unit comprises an intelligent controller, a breaker and a communication module, the communication module in each terminal unit is only communicated with the closest terminal unit, and the intelligent controller in each terminal unit collects the information of voltage, current, power direction, associative direction and state and the after-fault information of the breakers in the terminal unit and the adjacent terminal unit. According to the method, a peer-to-peer communication network is adopted, the terminal units on a circuit are communicated with one another, fault information of adjacent switches is collected, arbitrating is performed, and rapid positioning and isolating of a fault are realized.
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Description

technical field

[0001] The invention relates to a protection method for an intelligent power network, in particular to a network-type protection method suitable for the operation of a multi-power supply ring network structure and a full circuit breaker network. Background technique

[0002] Power automation is an important part of the smart power network, and it is of great significance to improve the reliability of power supply, expand the power supply capacity and realize the efficient and economical operation of the power network. Power network fault handling is the core content of power automation. my country's distribution network generally adopts radial structure lines. When carrying out urban network transformation, it generally adopts the interconnection of the ends of the radiation lines to form a hand-in-hand dual power supply ring network structure. The method saves investment and can improve the reliability of power supply. At present, the network with this struct...

Claims

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