Distributed power grid electric energy quality prediction method and apparatus

A distributed power grid and power quality technology, applied in the power grid field, can solve problems affecting the power quality of the main grid, affecting the power generation quality of the micro-grid, and the voltage deviation of the main grid, and achieve an effect that is conducive to popularization and application

Inactive Publication Date: 2017-02-15
WEIHAI POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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Problems solved by technology

[0005] However, since most microgrids use natural energy such as solar energy and wind energy, and wind resources and solar energy resources have obvious fluctuations and instability, the output power of each subsystem fluctuates, thereby affecting the power generation quality of the m

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  • Distributed power grid electric energy quality prediction method and apparatus
  • Distributed power grid electric energy quality prediction method and apparatus
  • Distributed power grid electric energy quality prediction method and apparatus

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[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0044] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0045] A distributed power grid power quality prediction method, comprising:

[0046] Collect main network operation data;

[0047] Collect microgrid operation data;

[0048] Collect user electricity consumption data, the electricity consumption data includes time, ...

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Abstract

The invention discloses a distributed power grid electric energy quality prediction method and apparatus, and belongs to the technical field of a power grid. A distributed power grid accessed to a micro power grid is monitored in real time, at the same time, weather conditions and user electricity consumption conditions are also monitored in real time, necessary data used for predicting future supply and demand conditions of the power grid is obtained, and future electric energy quality status of the distributed power grid is predicted through a neural network, such that the problem of lack of a distributed power grid electric energy quality prediction means in the prior art is solved, a necessary reference is provided for management scheduling motion of power grid management personnel, and promotion and application of the distributed power grid are facilitated.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a distributed power grid power quality prediction method and device. Background technique [0002] Distributed power grid refers to the power network connected to distributed power. The so-called distributed power generally refers to power facilities that use new energy such as wind energy, solar energy, and geothermal energy to generate electricity. Usually, distributed power and energy storage devices, energy conversion Devices, loads, monitoring and protection devices together form a small power generation and distribution system, that is, a microgrid. Therefore, a distributed power grid usually refers to a power network connected to a microgrid. [0003] A microgrid is an autonomous system capable of self-control, protection and management, which can either be connected to the external grid or run in isolation. The proposal of the microgrid aims to realize the flexible a...

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Application Information

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IPC IPC(8): G01R31/08G06N3/04
CPCG01R31/088G06N3/045Y04S10/50
Inventor 李林宋宗勋李峰单喜斌
Owner WEIHAI POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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