Power distribution network source network load storage multi-terminal cooperative voltage regulation method under long, short and multiple time scales

Abstract

The invention discloses a power distribution network source network load storage multi-end cooperative voltage regulation method under multiple time scales, and the method comprises the steps: building a multi-mode switching control model based on the triggering of a voltage safety event based on a Petri network under a long time scale, so as to achieve the effective regulation and control of a global voltage; establishing multi-objective optimization considering source, load and storage cost and network transmission loss so as to realize cooperative dynamic control of controllable resources at each end of source, load and storage in each operation mode; and under a short time scale, establishing a source storage load multi-end cooperative distributed voltage control model triggered based on a voltage safety event, considering the problems of voltage amplitude out-of-limit and jump, and solving an optimal control sequence of each end of the source storage load online in a rolling time domain. According to the method, the source network load storage multi-terminal controllable resources are coordinated under different time scales to realize comprehensive treatment of the active power distribution network voltage problem, the adjustment response speed is high, and the voltage control effect is good.

Description

technical field [0001] The invention belongs to the technical field of distribution network operation control, in particular to a multi-terminal coordinated voltage regulation method for distribution network source network load and storage in a long-term scale, and also relates to a distribution network source network load-storage multi-terminal coordinated regulation method in a short time scale It also relates to a method for multi-terminal coordinated voltage regulation of distribution network, load and storage under multi-time scales. Background technique [0002] Active distribution network (referred to as distribution network), as the main basic platform in the energy field to serve the country to achieve the goals of "carbon peak" and "carbon neutrality", needs to support large-scale grid-connected consumption and flexible load of distributed renewable energy "Plug and play" type access and exit, which leads to strong uncertainty and "double high" characteristics of t...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a long, short and multi-time scale multi-terminal coordinated voltage regulation method for the power distribution network, load and storage, and to solve the problem of separate management of each end in the prior art method question

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