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

A long-term scale, load-storage multi-terminal technology, applied in the direction of AC network voltage adjustment, photovoltaic power generation, electrical components, etc., can solve problems such as separate governance

Active Publication Date: 2021-08-20
NANJING UNIV OF POSTS & TELECOMM +1
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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 vol

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

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Embodiment Construction

[0134] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0135] The embodiment of the present invention provides a multi-terminal coordinated voltage regulation method for distribution network source network, load storage and multi-terminal under multi-time scale. Voltage equipment, the storage terminal refers to the energy storage, and the load terminal refers to the SVC; for example figure 1 As shown, the optimization method includes the following steps:

[0136] Step 1: In the long-term scale, a multi-mode switching control model for active distribution network feeders is established based on Petri nets, and a multi-mode switching control model based on voltage security events is designed according to the working characteristics of the grid-side ...

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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...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/28H02J3/16H02J3/18
CPCH02J3/381H02J3/28H02J3/16H02J3/1842H02J2203/20H02J2300/24H02J2300/28Y02E40/30Y02E10/56Y02B10/10
Inventor 岳东窦春霞张智俊丁孝华罗剑波李延满黄堃韩韬
Owner NANJING UNIV OF POSTS & TELECOMM
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