Zoned and layered load transferring method based on urban power transmission network fault recovery

Abstract

The invention discloses a zoned and layered load transferring method based on urban power transmission network fault recovery. The method comprises the steps of: based on integrated power grid model and operation mode information of an EMS (energy management system), receiving power grid fault information in real time; and based on spare power automatic switching action condition, automatically analyzing off-limit equipment and power failure range information of a power grid after a fault, and providing an operation mode adjusting strategy for eliminating limit exceeding of the equipment. A local rapid topological method is utilized, the zoned and layered recovery strategy is adopted, and a power supply recovery scheme is automatically generated, so that the system operation personnel are assisted in processing emergent accidents, the power failure time is effectively shortened, the problems of long fault recovery period and large pressure in the prior art are solved, and the power supply reliability of a regional power grid is further improved.

Description

technical field [0001] The invention belongs to the field of electric power system dispatching automation, and in particular relates to a partitioned and layered load transfer method based on urban transmission network fault recovery. Background technique [0002] The scale of the power grid is getting bigger and bigger, and the system structure and operation mode are becoming more and more complex. Although the level of power grid construction and operation is also improving, various accidents, especially accidents caused by unpredictable accidental factors, cannot be completely avoided. Therefore, once an accident occurs in the power grid, on the basis of accurately locating the fault in the power grid, how to take effective measures to minimize the scope of power outages, shorten the duration of power outages, prevent the expansion and spread of accidents, and restore power supply as soon as possible is a very important issue in the field of power grid dispatching automati...

AI Technical Summary

Problems solved by technology

With the continuous improvement of residents' living standards, higher and higher requirements are put forward for the power supply reliability of urban power grids. Traditional fault recovery research focuses on distribution networks, and high-voltage transmission networks often focus on the analysis of power grid security and stability. However, the urban power grid is between the high-voltage transmission network and the low-voltage distribution network. How to effectively solve the problem of quickly restoring power supply is still mainly based on manual experience, and the dispatching automation system lacks effective technical support means.

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