Method, system and equipment for power supply analysis of distribution network bus through feeder string

Abstract

The invention discloses a method, system and equipment for analyzing power supply of a distribution network bus through a feeder series, which can obtain the ampacity of the feeder of the series-supplied bus, the ampacity of the feeder on the opposite side of the feeder of the series-supplied bus, the load of the feeder of the series-supplied bus, and the connection pair of feeders of the series-supplied bus The load of side feeder, the ampacity of the main transformer on the opposite side connected by the feeder of the series bus feeder and the total load of the main transformer on the opposite side connected by the feeder of the series bus feeder, the minimum ampacity analysis of the feeders on both sides of the feeder of the series bus feeder, the total load analysis of the feeder of the series bus feeder and the feeder on the opposite side , the residual margin analysis of the series bus feeder and the feeder on the opposite side, the main transformer margin analysis on the opposite side of the series bus feeder, and the final load margin analysis of the series bus feeder, and sort them in reverse order of the maximum series load margin of the series bus feeder. Realized the intelligent analysis of the power supply of the distribution network bus through the feeder string to replace the manual analysis, and provided a fast and accurate string power supply scheme for the failure of the upstream power supply of the power grid or the emergency power failure of the bus.

Description

technical field [0001] The invention relates to the technical field of distribution network power supply, in particular to a method, system and equipment for analyzing power supply of a distribution network busbar via a feeder string. Background technique [0002] With the increase of the power system load, the continuous changes in the wiring and operation mode of the power grid system, and the development of new construction and transformation of the power grid, power grid failure events and emergency defect outage events occur from time to time. The network bus needs to lose power due to planned work, emergency defect handling, fault power outage, etc., which will cause power failure of all feeders on the bus, thus affecting the power supply to power supply customers. [0003] Not all lines of the distribution network feeder under the distribution network bus can be transferred to power supply. At the same time, the distribution network bus also has the power supply deman...

AI Technical Summary

Problems solved by technology

In the traditional business mode, the analysis and calculation of the power supply of the distribution network busbar through the feeder string is performed manually by the dispatcher. Each analysis requires a lot of data, and it is necessary to continuously compare and exhaustively list various situations. In case of emergency In the case of defects or faults and power outages, dispatchers are busy dealing with faults, and it will be difficult to have enough manpower and time to quickly complete the analysis of bus string supply analysis, which will cause power consumption of stations and customers affected by bus power outages. Reply work orders in a short time, and at the same time, it is impossible to determine the bus string power supply feeder with the largest margin, which will also cause work orders that cannot restore more loads and send power to important customers

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