Self-healing control method of centralized distribution network

Abstract

The invention relates to a self-healing control method of a centralized distribution network. In the method, a control process for carrying out self-healing control through a certain node self-healing control system / device / intelligent agent in the distribution network, and start and termination conditions and control processes of optimization control, emergency control, risk control and restorative control are disclosed; the organic coordination of the optimization control, the emergency control, the risk control and the restorative control is realized; aiming at the self-healing control requirements of the distribution network in the event that operation states of a power grid in the risk control process and the emergency control process are further deteriorated and cascading failures occur, and the like, a self-healing process for performing dynamic fault diagnosis in emergency state monitoring and emergency control in the risk control is provided; and the method is applicable to the self-healing control of the certain node self-healing control system / device / intelligent agent.

Description

technical field [0001] The invention relates to a method in the technical field of electric power system automatic control, in particular to a centralized distribution network self-healing control method. Background technique [0002] The smart distribution network is considered to be a grid development model that will change the face of the future power system, and its development has ushered in a critical period of opportunities and challenges. On the one hand, a large number of distributed power sources and intelligent equipment have changed the operation mode and power distribution mode of the distribution network, greatly increasing the complexity of the structure and composition of the distribution network; on the other hand, technologies such as informatization and digitalization The progress and the organic integration and fusion of various new power distribution technologies provide solid technical support for the development of smart distribution networks. However...

AI Technical Summary

Problems solved by technology

However, the system risk caused by the failure of traditional equipment still exists, the lack of statistics on the operation of a large number of new equipment, the lack of coordination between the operation of traditional equipment and new equipment, and the economical operation of the smart distribution network. The changes in the distribution network make the risks faced by the distribution network more complex and diverse

[0003] The development and construction of the smart distribution network puts the ability to resist accident risks in a prominent position. The traditional distribution network and existing systems / technologies such as automation and protection control cannot spontaneously and actively conduct real-time analysis of the distribution network, and cannot effectively realize The active defense function of the distribution network, while the self-healing control technology of the smart distribution network integrates system analysis, operation optimization, risk prevention, power grid protection, and emergency response to accidents, and forms a smart distribution network together with automation systems and information systems. The control center provides technical support for the active defense and whole-process defense of power grid security

Images