Active distribution network reactive power and voltage coordinated operation optimization method and system

Abstract

The present invention relates to an active distribution network reactive voltage coordinated operation optimization method and system. The method comprises the steps of: obtaining a line resistance value, a line reactance value, a parallel conductance value and a parallel susceptance value; establishing a reactive voltage coordinated optimization model comprising a target function and constraint conditions consisting of a line power flow constraint equation, a node voltage amplitude constraint equation, a line current amplitude constraint equation and operation constraint equations of a plurality of active management devices; solving the reactive voltage coordinated optimization model according to the line resistance value, the line reactance value, the parallel conductance value and the parallel susceptance value, and obtaining operation data of the plurality of active management devices; and controlling optimization operation of the corresponding active management devices according to the operation data. Therefore, the operation constraint of the active management devices of the active distribution network is considered to effectively transfer the active management devices, achieve reactive voltage coordinated optimization operation of the active distribution network and reduce the network loss of the active distribution network.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a reactive power and voltage coordinated operation optimization method and system for an active distribution network. Background technique [0002] The active distribution network is a distribution network with distributed or decentralized energy, control and operation capabilities. The use of active distribution network provides an important technology for the consumption of distributed energy, but its operation management also encounters technical bottlenecks. Since the distributed power generation is connected to the active distribution network, the operation state of the active distribution network has been completely changed, and the active distribution network has changed from a single power source and a unidirectional power flow to a multi-terminal power source and a frequently changing bidirectional power flow; Existing operational control architectures for reactiv...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a reactive power and voltage coordinated operation optimization method and system for active distribution networks that reduce network losses for the problem of large network losses in traditional active distribution networks

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