Distribution network bus series power supply analysis method, system and equipment through feeder line

Abstract

The invention discloses a method, a system and equipment for analyzing power supply of a distribution network bus through a feeder line. The method comprises the following steps of acquiring feeder current-carrying capacity of a series supply bus, feeder connection opposite-side feeder current-carrying capacity of the series supply bus, feeder load of the series supply bus, feeder connection opposite-side feeder load of the series supply bus, feeder connection opposite-side main transformer current-carrying capacity of the series supply bus and feeder connection opposite-side main transformer total load of the series supply bus; respectively analyzing the minimum current-carrying capacity of feeder lines at two sides of a series supply bus feeder line, analyzing the total load of the series supply bus feeder line and an opposite-side feeder line, analyzing the residual margin of the series supply bus feeder line and the opposite-side feeder line, analyzing the margin of a series supply bus feeder line contact opposite-side main transformer, and analyzing the final load margin of the series supply bus feeder line; and the series supply bus feeders being sorted in an inverted order according to the maximum series supply load margin of the series supply bus feeders. The method is advantaged in that intelligent analysis of distribution network bus series power supply through feeder lines is achieved, manual analysis is replaced, and a rapid and accurate series power supply scheme is provided for power grid upstream power supply failure or bus emergency power failure work.

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...

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