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Cluster output characteristic evaluation method for large-scale grid-connected new energy

A technology of output characteristics and evaluation methods, applied in the direction of power network operating system integration, AC network circuits, climate sustainability, etc., can solve the problem of urban power grid power and peak load balance without large data reference value, urban grid new energy Targeted evaluation of cluster characteristics and other issues, to achieve the effect of reducing power waste and ensuring peak shaving balance

Pending Publication Date: 2022-01-25
STATE GRID TIANJIN ELECTRIC POWER +1
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  • Application Information

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Problems solved by technology

Neither of the above two evaluations has a targeted evaluation of the cluster characteristics of new energy sources in urban power grids, and there is no great data reference value for the power and peak-shaving balance of urban power grids

Method used

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  • Cluster output characteristic evaluation method for large-scale grid-connected new energy
  • Cluster output characteristic evaluation method for large-scale grid-connected new energy
  • Cluster output characteristic evaluation method for large-scale grid-connected new energy

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Embodiment Construction

[0042] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] The retail package pricing method considering price-based...

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Abstract

The invention provides a cluster output characteristic evaluation method for large-scale grid-connected new energy, and the method comprises the following steps: building evaluation indexes of three dimensions, namely output confidence, output fluctuation and load curve matching degree; and comprehensively evaluating the influence degree of the output of the new energy in the urban power grid on the electric power quantity and peak regulation balance of the urban power grid according to the evaluation indexes, and giving quantitative evaluation. The output confidence can provide data support for participation of new energy output in power balance of an urban power grid, and provide reasonable reference for setting of a new energy output level; the output fluctuation degree can provide data support for real-time dispatching unit output of a power grid, a dispatcher can conveniently pre-judge the maximum fluctuation of new energy output, and reference is provided for adjustment of a traditional unit; and the load curve matching degree can provide data support for peak regulation balance of a power grid, thermal power startup and shutdown are adjusted in time according to the peak-valley difference after the load curve is superposed with new energy output, peak regulation balance is guaranteed, and the abandoned electric quantity of the new energy is reduced.

Description

technical field [0001] The invention relates to the technical field of urban power grid planning evaluation, in particular to a cluster output characteristic evaluation method of large-scale grid-connected new energy. Background technique [0002] The energy revolution and the proposal of dual carbon targets provide a good opportunity for the large-scale development of new energy in urban power grids. With the further increase of the installed capacity of new energy in urban power grids, the impact of new energy output on the power balance, power balance and peak-shaving balance of the overall power grid has further increased. Under the high pressure of air pollution prevention and control, the capacity of thermal power generators in urban power grids will no longer increase significantly, and the output of new energy in the grid will replace them and become the main source of power output for urban power grids. The randomness and intermittency of new energy output are stro...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/14H02J3/38
CPCH02J3/466H02J3/144H02J3/381H02J2203/10H02J2300/28Y02B70/3225Y04S20/222
Inventor 张天宇闫大威王魁宋佳雷铮丁承第李媛媛何平王伟臣李慧刘忠义宣文博
Owner STATE GRID TIANJIN ELECTRIC POWER
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