Distributed self-healing control method based on feed line topology automation terminals

Abstract

The invention discloses a distributed self-healing control method based on feed line topology automation terminals, and the method is characterized in that the method comprises the steps: dividing a power distribution network into a plurality of control regions, wherein the regions have intersections; The interior of each control region is provided with one feed line topology automation terminal.Each feed line topology automation terminal comprises a collection module, a communication module, a control module, a fault analysis calculation module, a storage module and a power module. The feedline topology automation terminal in each control region takes the feed line topology automation terminal as the circle center and a certain distance as the radius to radiate all terminals in the control region outwards through the Ethernet, obtains the line topology information and operation conditions stored in all terminals in the region, thereby achieving the information interaction. The sameregion can be covered by a plurality of terminals. Meanwhile, the feed line topology automation terminals enable the line topology information and on / off conditions of the control regions where the terminals in the regions and the radiated terminals are located to be stored in a storage module. When a line has a fault, there is no need of real-time interaction, and the main and standby managementis achieved through a priority method, and the control can be achieved through the self-stored topology information. The control method employs a point-to-surface mode, and gradually expands to the whole power distribution network. The method improves the power supply safety, reliability, quality and economical performances of the power distribution network, and effectively improves the emergencycapability of the power distribution network. The method greatly improves the power supply speed of a non-fault region through the stored line topology information.

Description

[0001] The invention relates to a distributed self-healing control method based on feeder topology automation terminals, and belongs to the technical field of power grid planning in the electric power industry. Background technique [0002] With the development of social economy, high-tech electronic equipment has been widely used in social production and life, such as programmable controllers, frequency conversion speed control equipment, computers and database systems, and personal computers, etc. These equipment have higher requirements for power supply quality. High, even a brief power interruption or voltage disturbance may cause abnormal operation of the equipment. Cause serious accidents such as production line stoppage, equipment damage, product scrapping, data loss, etc. The economic losses caused by these accidents and the impact on society are very huge. At present, there are many power supply quality disturbance phenomena in the operation of the power grid, such...

AI Technical Summary

Problems solved by technology

In overhead lines, it will inevitably lead to a longer power outage for users on the faulty section

[0006] (2) The closed-loop operation method is generally adopted in Singapore, while the domestic distribution network adopts open-loop operation, so this technology cannot be applied at present

[0007] (3) Microgrid is still in the experimental and demonstration stage in my country, and most of the research work is concentrated in the field of distributed power generation and energy storage technology, which is not widely used at present

[0008] (4) The power electronic devices relied on by the flexible power distribution technology are applied to the medium-voltage distribution network. At present, there are still problems such as reliability, loss and cost. time

Images