An Optimal Search Method for Power Grid Dynamic Partitioning Strategy

A dynamic partitioning and optimization search technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve problems such as power grid impact, achieve the effect of reducing configuration, improving operation management level, and reducing the risk of liability for power safety accidents

Active Publication Date: 2019-11-01
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is little research on how these backup channels are used and what impact they will have on the power grid after use

Method used

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  • An Optimal Search Method for Power Grid Dynamic Partitioning Strategy
  • An Optimal Search Method for Power Grid Dynamic Partitioning Strategy
  • An Optimal Search Method for Power Grid Dynamic Partitioning Strategy

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Embodiment 1

[0031] This embodiment proposes an optimization search method for a dynamic partition strategy of a power grid. This embodiment utilizes the dynamic partition technology. The so-called dynamic partition technology refers to the use of spare communication channels between different partitions to dynamically adjust the partition structure and power supply range under the emergency state of the power grid. Dynamic partition technology can be used to adjust the power flow distribution of the power grid. Reasonable dynamic partition can solve or alleviate the emergency state of the power grid, reduce the amount of emergency load shedding, and then reduce the risk of power safety accidents.

[0032] The implementation process of this embodiment is as follows figure 1 As shown, that is, according to the overload safety margin of the equipment and the node voltage safety margin under the expected fault, the maximum number of dynamic partition operations is comprehensively determined,...

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Abstract

The invention discloses a power grid dynamic partitioning strategy optimized search method, and belongs to the technical field of power systems and automation thereof. The maximum dynamic partitioning operand is determined according to the overload safety margin and the node voltage safety margin of equipment under an expected fault, and whether equipment overload and voltage over-limit under the expected fault can be solved after implementation of each dynamic partitioning strategy of which the comprehensive control performance meets the requirements is checked under the constraint of the maximum operand. If the problem can be solved, an optimal dynamic partitioning operation combination is chosen. If the problem cannot be solved, the dynamic partitioning strategy with highest comprehensive control performance is chosen to solve equipment overload and voltage over-limit under the expected fault with the aid of other control measures. An optimized dynamic partitioning strategy can be provided for equipment overload and voltage over-limit or other emergency in a power grid, so that configuration of emergency load shedding measures is reduced, the electric safety accident liability risk is reduced, and the level of power grid operation management is improved.

Description

technical field [0001] The invention belongs to the technical field of electric power systems and automation thereof, and more precisely, the invention relates to a method for optimizing and searching dynamic grid partition strategies. Background technique [0002] Emergency load shedding is an important measure in my country's power grid security and stability defense technology system. By implementing load shedding in emergency state of power grid, stability problems such as power angle, voltage, frequency and overload can be solved. Order No. 599 of the State Council "Regulations on Emergency Response and Investigation and Handling of Electric Power Safety Accidents" (hereinafter referred to as the "Regulations") clarified that the load shedding of the stability control system is equal to the load loss due to failure. It will also trigger the "Regulations", and the power production and operation unit shall bear the corresponding responsibility for power safety accidents. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/06H02J3/00
CPCG06Q50/06H02J3/00H02J3/001Y04S10/50
Inventor 李兆伟刘福锁李威徐泰山李海峰李碧君崔晓丹任先成王玉吴雪莲胡阳王燕君罗凯明邹燕刘林
Owner NARI TECH CO LTD
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