10kv busbar voltage optimization method, system and medium that can improve distribution network voltage qualification rate

Abstract

The invention discloses a 10kV bus voltage optimization method and system capable of improving the voltage qualification rate of a power distribution network and a medium. The optimization method comprises the following optimization steps: determining a calculation reference day of a target 10kV bus; respectively counting and calculating the normal, overvoltage and undervoltage proportions of thetransformer court voltage in a power supply area in the reference day; determining the distribution network voltage condition in the target 10kV bus power supply range according to the normal, overvoltage and undervoltage proportions; and calculating a periodic target 10kV bus voltage target value according to the distribution network voltage condition generation cost in the target 10kV bus powersupply range. According to the method and the system, the purpose of improving the voltage qualification rate of the power distribution network can be achieved by optimizing the voltage of the 10kV bus, the voltage qualification rate of the 10kV bus is not reduced, the voltage qualification rate of the power distribution network is improved, reactive resources of a main power grid of 10kV and above are fully utilized, and the voltage regulation and control cost of the power distribution network is reduced.

Description

technical field [0001] The invention relates to a 10kV bus voltage control target value optimization technology, in particular to a 10kV bus voltage optimization method, system and medium capable of improving the voltage qualification rate of a distribution network, which can be used to improve the voltage qualification rate of a 400V power grid on the low-voltage side of a distribution transformer. Background technique [0002] As people's production and life are more closely connected with electricity, the requirements for power quality are also increasing. Voltage amplitude is the most basic power quality index. Whether the voltage amplitude is within the qualified range directly affects daily production and life. The voltage qualification rate refers to the percentage of the sum of the time during which the voltage of the monitoring point is within the qualified range and the total time of voltage monitoring in the calculation period during the operation of the power gr...

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Problems solved by technology

For example, the Chinese patent document with the application number 201611013425.1 discloses an analysis method and system for the low-voltage control scheme of the distribution network, which uses basic data to control the low-voltage problem of the distribution network, but does not involve optimizing the 10kV bus voltage; the application number is 201410375266.4 The Chinese patent literature discloses a system and method for analyzing the qualification rate of the 10kV busbar voltage in the power system, which only involves improving the qualification rate of the 10kV own voltage, but does not involve improving the voltage qualification rate of the distribution network

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