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Multi-time scale coordinated voltage reactive power control method

A technology of voltage and reactive power control and multi-time scales, applied in reactive power compensation, AC network voltage adjustment, circuit devices, etc. Effect of tracking voltage fluctuations and reducing power loss

Active Publication Date: 2018-09-04
JIANGSU FRONTIER ELECTRIC TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a multi-time scale coordinated voltage and reactive power control method to solve the technical problem of unstable and uncertain distribution network voltage caused by the access of renewable energy to the distribution network

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  • Multi-time scale coordinated voltage reactive power control method
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  • Multi-time scale coordinated voltage reactive power control method

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Embodiment Construction

[0021] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims.

[0022] like figure 1 As shown, in some illustrative embodiments, the present invention provides a multi-time scale coordinated voltage and reactive power control method applied to a high renewable energy penetration distribution system, including: utilizing the different responses of multiple voltage and reactive power c...

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Abstract

The invention provides a multi-time scale coordinated voltage reactive power control method. A voltage is adjusted by different response speeds of a plurality of voltage reactive power control equipment and by two time scales, the two time scales are coordinated by a two-stage power loss forecast model, and the total expected power loss is reduced as well as the voltage limitation on different time scales are met. A safety voltage level is maintained under the condition that a load changes and regenerative energy power output fluctuates, and the total expected power loss can be reduced.

Description

technical field [0001] The invention belongs to the technical field of reactive power and voltage control in electric power systems, and in particular relates to a multi-time scale coordinated voltage and reactive power control method. Background technique [0002] At present, the traditional energy sources are being exhausted day by day, and the environment is seriously polluted on the other hand. It has become an urgent need to seek new renewable energy sources. In recent years, the renewable energy industry has developed rapidly, especially in the wind power and photovoltaic industries, and the installed capacity has continued to increase. [0003] In the distribution network, the line resistance is large, which makes the active power generated by renewable energy have a greater impact on the grid voltage. As the proportion of renewable energy access continues to increase, a large amount of active power is injected, making the distribution The net load of the power grid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/16
CPCH02J3/16H02J3/003H02J2203/20Y02E40/30
Inventor 范立新颜全椿徐妍李辰龙顾文徐钢刘亚南杨宏宇都晨汤奕王琦俞智鹏
Owner JIANGSU FRONTIER ELECTRIC TECH
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