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Self-healing control method for operation of urban distribution network

A technology of urban power grid and self-healing control, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as no control strategy, eliminate abnormal situations and hidden safety hazards, have strong adaptability, and improve economic efficiency Effect

Active Publication Date: 2010-12-29
HOHAI UNIV
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Problems solved by technology

[0004] In view of the above-mentioned advantages of self-healing control technology, self-healing control schemes have been proposed in the fields of communication and network. At present, the application of self-healing control in the power grid is only for the transmission network, and only considers the processing of hidden troubles and the after-failure. recovery, and did not propose a specific and feasible control strategy

Method used

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  • Self-healing control method for operation of urban distribution network
  • Self-healing control method for operation of urban distribution network
  • Self-healing control method for operation of urban distribution network

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Embodiment Construction

[0041] The urban power grid self-healing control scheme is to control the current operating state of the urban power grid to achieve a better operating state, thereby ensuring the stable, safe, reliable, and economical operation of the urban power grid. The specific control process is as follows:

[0042] 1) First, the voltage and current transformers respectively convert the voltage and current signals of the urban power grid into weak current signals. The sensor converts the operating characteristics of the switch and the contact temperature into weak current signals. The relay protection device receives the converted voltage and current signals. After the current signal is compared with the setting value of the current protection setting area, it is greater than the action start value. For example, when the setting value 0 area is the current protection setting area, the current I section is set to 7A, and the collected Pingshan 311 line current is 9.3A Trigger the relay to tr...

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Abstract

The invention discloses a self-healing control method for operation of an urban distribution network, which is used in an operated urban distribution network. The method adopts an integrative coordination control mode of the urban distribution network based on the self-healing control technology; the process of signals and the generation of control strategies have self adaptability; the method automatically finishes a control process without external intervention, coordinates the action behaviors of a relay protection device, a switch, a safe automatic device and an automatic adjusting device, and carries out coordination control on the relay protection device, the switch, the safe automatic device and various automatic adjusting devices and parameters thereof so as to realize the technical proposal of stable, safe, reliable and economic operation of the urban distribution network; and the method belongs to the application field of cross technology of power system theory, control theory and artificial intelligence.

Description

Technical field [0001] The present invention is a kind of urban power grids used in operation, which adopts intelligent methods to coordinate and control relay protection, switches, safety automatic devices, various automatic adjustment devices and their parameters, so as to realize the stability, safety, reliability, and reliability of the urban power grids. The technical solution for economic operation belongs to the cross-technology application field of power system theory, control theory and artificial intelligence. Background technique [0002] The development of modern society has made urban power grids develop in the direction of complex voltage levels, diversified power supply modes, coexistence of long and short lines, coexistence of overhead lines and cable lines, open loop operation with weak loops, increased single load capacity and increased dynamic loads At the same time, the urban power grid is required to have higher power supply security and reliability. Self-hea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00H02J3/00H02J3/26H02J3/18
CPCY02E40/74Y02E40/30Y02E40/50Y04S10/22
Inventor 陈星莺余昆刘皓明但唐军王平王冰廖迎晨袁晓玲
Owner HOHAI UNIV
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