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Self-healing control method for operation of urban distribution network

A technology of urban power grid and self-healing control, which is applied in the cross-technical application of control theory and artificial intelligence, and in the field of power system theory, can solve problems such as no control strategy, eliminate abnormal situations and hidden safety hazards, have strong adaptability, and improve Economical effect

Active Publication Date: 2009-12-02
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

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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 self-healing control scheme of the urban power grid 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 transformer converts the voltage and current signals of various parts of the urban power grid into weak current signals, the sensor converts the operating characteristics of the switch and the temperature of the contacts into weak current signals, and the relay protection device receives the transformed voltage, After the current signal is compared with the fixed value of the current protection fixed value area, if it is greater than the action start value, such as the fixed value 0 area is the current protection fixed value area, the fixed value of the current I section is 7A, and the collected Pingshan 311 line current is 9.3A Trigger...

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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 an urban power grid used in operation, which adopts an intelligent method 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 safety of the urban power grid. The technical scheme of economic operation belongs to the cross-technical application field of power system theory, control theory and artificial intelligence. Background technique [0002] The development of modern society makes the urban power grid develop in the direction of complex voltage levels, diversified power supply methods, coexistence of long and short lines, coexistence of overhead lines and cables, open-loop operation mode with weak loops, increase in single load capacity and increase in dynamic load At the same time, it is required that the urban power grid has higher power supply security and reliability. Self-healin...

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Application Information

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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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