A parallel type comprehensive treatment device and its control method for the voltage problem of remote weak grids

A technology for grid voltage and comprehensive management, applied in the application field of energy storage technology, can solve problems such as low voltage, insufficient active power transmission capacity, voltage fluctuation, etc., to ensure efficient utilization, improve power supply efficiency and power quality, and achieve local balance Effect

Active Publication Date: 2022-07-29
STATE GRID HUBEI ELECTRIC POWER RES INST +1
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Problems solved by technology

[0003] The purpose of the present invention is to provide a parallel-type comprehensive treatment device and its control method for the voltage problem of remote weak-connected power grids, which solves the problems of low voltage and frequent voltage caused by insufficient active power transmission capacity commonly existing in remote weak-connected power grids. Power quality problems such as large-scale fluctuations

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  • A parallel type comprehensive treatment device and its control method for the voltage problem of remote weak grids
  • A parallel type comprehensive treatment device and its control method for the voltage problem of remote weak grids
  • A parallel type comprehensive treatment device and its control method for the voltage problem of remote weak grids

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[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0036] like figure 1 As shown, the embodiment of the present invention provides a parallel type comprehensive treatment device, which includes an energy storage battery module, a rectification and inverter function module, a special module for a control system, and a communication module.

[0037] Among them, the rectifier and inverter func...

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Abstract

The invention provides a parallel type comprehensive treatment device and a control method for the voltage problem of a remote weakly connected power grid, with a communication module, a special module for a control system, a rectification inverter module and an energy storage battery module as the core, and a multi-branch radiation type The power supply scenario is constructed, and the key nodes in the weakly connected power grid are connected in parallel. Through the optimal energy control strategy, the node voltage is guaranteed to be normal, the power supply cost is reduced, and the power demand of users in the low-voltage station area can be greatly improved. The power quality of weakly connected power grids in remote areas can be improved, the reliability of electricity consumption can be improved, the power demand of users in different scenarios can be met, and the power quality pain points such as power shortage and power curtailment existing in the current weakly connected power grids can be effectively solved.

Description

technical field [0001] The invention relates to the application field of energy storage technology, in particular to a parallel-type comprehensive treatment device and a control method for the voltage problem of remote weakly connected power grids. Background technique [0002] Remote and weakly connected power grids are far from the core area of ​​the distribution network, and generally have the characteristics of large power supply radius, long transmission lines, outdated equipment performance, low power reliability and poor power quality. Affected by topography, there are a large number of single-radiation long-line low-voltage weak grids in rural areas, and the reliability of power supply is severe. In addition, due to the ubiquitous seasonal loads and unbalanced loads in rural power grids, the contradiction between residential electricity consumption and production electricity consumption is prominent, and the residents' complaint rate remains high. It is urgent to sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32H02J3/18H02J3/50H02J7/00H02J13/00
CPCH02J3/32H02J3/18H02J3/50H02J7/0048H02J13/00032Y04S10/12Y04S10/14Y04S10/50Y04S40/126
Inventor 凌在汛崔一铂成诚梅欣蔡万里李喆向慕超刘曼佳游力郭雨
Owner STATE GRID HUBEI ELECTRIC POWER RES INST
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