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Active power distribution network energy storage planning method based on fragility theory

An active distribution network and vulnerability technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of failing to meet the requirements of practical applications, not considering the different needs of operating scenarios, and weak applications

Inactive Publication Date: 2016-11-16
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0004] The application of vulnerability assessment in distribution network is still relatively weak, and it cannot meet the requirements of practical application
Moreover, none of the technical researches takes into account the diversity of network operation status after distributed power sources such as energy storage devices are connected to the distribution network, and the simulation examples applied to distribution network planning do not take into account the operation scenarios of the network in each period of the life cycle. different needs

Method used

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  • Active power distribution network energy storage planning method based on fragility theory
  • Active power distribution network energy storage planning method based on fragility theory
  • Active power distribution network energy storage planning method based on fragility theory

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Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with the accompanying drawings. figure 1 A flow chart of an energy storage planning method for an active distribution network based on the vulnerability theory of the present invention is shown, and the planning method can be executed by various computing devices.

[0055] Step 1. Determine the parameter information and control variables of the ADN energy storage planning model based on the vulnerability theory;

[0056] The parameter information includes: one typical day in spring, summer, autumn and winter, multiple time sections in each typical day, multiple operating state samples in each time section, typical daily load information, namely load geographical distribution and load fluctuation in planned horizontal years , DG information refers to the geographical distribution of DG, stand-alone capacity, power parameters and output fluctuations in the planning level year, energy storage informatio...

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Abstract

The invention belongs to a power grid energy storage planning field, and particularly relates to an active power distribution network energy storage planning method based on a fragility theory. The active power distribution network energy storage planning method is characterized by comprising the following steps: firstly determining the parameter information and control variable of an AND energy storage planning model based on the fragility theory; then taking the initial set Omega g composed of all energy storage installation nodes to be selected in a determined representation system as the control variable of an energy storage configuration node range model, using comprehensive fragility variable delta R before and after system placement energy storage as an evaluation index, researching the fragility degree of each node in an active power distribution network, and determining the range of the energy storage installation nodes to be selected in the system; establishing the AND energy storage planning model based on the fragility theory; and finally carrying out iterative solving on the energy storage planning model by using a pre-defined algorithm. According to an energy storage location planning model based on the fragility theory provided by the invention, the two aspects of economical efficiency and improvement on system fragility can be taken into account comprehensively, and the obtained planning scheme has relatively high application value.

Description

technical field [0001] The invention belongs to the field of grid energy storage planning, and in particular relates to an active distribution network energy storage planning method based on vulnerability theory. Background technique [0002] At present, the research on the vulnerability of the power system is concentrated on the transmission network. As an important part of the power system, the distribution network, with the development of the active distribution network, the access of large-scale distributed energy and active network management The application of technology has made the actual distribution network structure intricate, with many nodes and various operating conditions. The complexity of the network has gradually approached that of the transmission network. The vulnerability research of the distribution network system has certain physical conditions. [0003] The current distribution network evaluation work mainly focuses on single-phase evaluations such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 曾博冯家欢张建华刘宗歧
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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