Day-ahead hierarchical coordinated dispatching method used for active power distribution network

Abstract

The invention provides a day-ahead hierarchical coordinated dispatching method used for an active power distribution network. The method comprises the following steps of: carrying out the optimized dispatching on source load resources; carrying out network reconstruction optimization among a plurality of feeder lines of the active power distribution network; carrying out coordinated correction on the active power output of the source load resources; and judging the active dispatching correction result of each source load resource. By use of the technical scheme provided by the invention, the operation optimization difficulty of the active power distribution network can be simplified, a calculated amount is reduced, the advantages of a disturbed power supply, an adjustable load and power distribution network reconstruction are utilized to a maximum degree, and therefore, the damage and the influence of the disturbed power supply, the adjustable load and the power distribution network reconstruction on the operation of the power distribution network are minimized.

Description

technical field [0001] The invention relates to the field of distribution system automation, in particular to a day-ahead layered coordination scheduling method for an active distribution network. Background technique [0002] With the increase of the penetration rate of distributed energy resources (DER) at all levels of the power system, the planning and operation of the power system, especially the distribution network, have become relatively complex, which has a negative impact on the economics and efficiency of the distribution network. The way of supervision has also had a great impact. In order to cope with the challenges brought about by the increase in the penetration rate of distributed energy, the technical model of active distribution network has emerged as the times require. [0003] Active distribution network is a power distribution system that uses a flexible network topology to manage power flow so as to actively control and manage local DERs. In the tradit...

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Problems solved by technology

[0007] Aiming at the day-ahead coordination scheduling problem of multiple operation optimization methods of active distribution network, in order to overcome the shortcomings of existing technologies such as slow solution speed and low solution accuracy, a day-ahead method for active distribution network that can effectively coordinate multiple operation optimization methods is proposed. Hierarchical Coordination Scheduling Method

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