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Power grid AGC multi-time scale coordinated optimization control method and system

A multi-time scale, coordinated optimization technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problem of the decline of control performance indicators, the AGC adjustment speed cannot meet the power grid, and no energy storage power station and conventional and new energy have been seen. Power station control cycle and other issues to achieve the effect of reducing equipment loss and energy loss, and maintaining stable performance indicators

Active Publication Date: 2021-09-17
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the AGC regulation performance index of the power grid in the later stage will drop significantly compared with the previous period, and the AGC regulation speed may not be able to meet the needs of the power grid.
At present, there is no study on the AGC coordination and optimization method of energy storage and conventional and new energy power stations under multi-time dimensions according to the regulation cycle of energy storage power stations and conventional and new energy power stations.

Method used

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  • Power grid AGC multi-time scale coordinated optimization control method and system
  • Power grid AGC multi-time scale coordinated optimization control method and system
  • Power grid AGC multi-time scale coordinated optimization control method and system

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Embodiment Construction

[0037] Such as figure 1As shown, the power grid AGC multi-time scale coordinated optimization control method in this embodiment includes:

[0038] 1) According to the AGC regulation cycle, all power stations are divided into energy storage station group ES, fast regulation group K, slow regulation group M and non-regulation group N;

[0039] 2) The energy storage station group ES meets the real-time control requirements of the grid AGC, the AGC regulation power of the energy storage station group ES is replaced by the fast regulation group K, and the AGC regulation power of the fast regulation group K is replaced by the slow regulation group M.

[0040] Among all power stations, conventional power stations may include at least one of thermal power stations and hydropower stations, and new energy power stations may include at least one of various types of power stations that use new energy as energy such as photovoltaic power stations, wind power stations, and biological power ...

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Abstract

The invention discloses a power grid AGC multi-time scale coordinated optimization control method and system. The method comprises the steps: dividing all power stations into an energy storage power station group ES, a quick adjustment group K, a slow adjustment group M and a non-participated adjustment group N. The real-time adjustment and control requirements of power grid AGC are met through the energy storage power station group ES. The AGC adjustment power of the energy storage power station group ES is replaced through the quick adjustment group K, the AGC adjustment power of the quick adjustment group K is replaced through the slow adjustment group M, the difference of various power stations such as the energy storage power stations, the conventional water and thermal power stations and the new energy power stations in the AGC adjustment period is fully considered. Through coordination control under multiple time dimensions under the condition that the energy storage capacity is limited, the power grid AGC adjustment and control performance index is kept stable. Meanwhile, frequent AGC adjustment of a conventional water power station, a thermal power station and a new energy power station is reduced. The equipment loss and energy loss are reduced.

Description

technical field [0001] The invention relates to the field of power system dispatching, in particular to a power grid AGC multi-time scale coordinated optimization control method and system. Background technique [0002] With the development of energy storage technology, large-scale energy storage power stations are connected to the grid, and the energy storage capacity in the grid has been greatly increased. Energy storage power stations have the advantages of fast regulation and control of active power, less damage to equipment, and no need to abandon wind, water, and light. Energy storage power stations have gradually become the main members participating in the AGC control of the power grid. With the high proportion of renewable energy connected to the grid, the proportion of thermal power plants will gradually decrease and the proportion of new energy power plants will gradually increase. The role of energy storage power plants in grid AGC control will become increasingl...

Claims

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Application Information

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IPC IPC(8): H02J3/28H02J3/46H02J3/48
CPCH02J3/28H02J3/46H02J3/466H02J3/48H02J2300/40H02J2203/10
Inventor 吴晋波宋兴荣熊尚峰洪权李理刘志豪龚禹生蔡昱华肖俊先李林山朱维钧欧阳帆刘伟良梁文武臧欣徐浩余斌李刚严亚兵许立强王善诺尹超勇徐彪肖豪龙李辉范敏李振文谢培元刘力周帆姜新凡胡迪军李龙周挺彭铖毛文奇肖纳敏曾林俊吴雪琴张伦
Owner STATE GRID HUNAN ELECTRIC POWER
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