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Electric power system power supply planning method considering uncertainty of renewable energy sources

A renewable energy and power planning technology, applied in system integration technology, information technology support systems, instruments, etc., can solve the problems of conservative power planning results, refined modeling of renewable energy uncertain scenarios, etc., to achieve refined modeling effect

Pending Publication Date: 2022-03-22
STATE GRID JIANGSU ECONOMIC RES INST
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Problems solved by technology

However, the above methods are difficult to fine-tune the modeling of renewable energy uncertain scenarios, and the power planning results are relatively conservative

Method used

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  • Electric power system power supply planning method considering uncertainty of renewable energy sources
  • Electric power system power supply planning method considering uncertainty of renewable energy sources
  • Electric power system power supply planning method considering uncertainty of renewable energy sources

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Embodiment Construction

[0087] The present invention proposes a power system planning method considering the uncertainty of renewable energy sources, which will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0088] The embodiment of the present invention proposes a power system planning method considering the uncertainty of renewable energy sources. The overall process is as follows figure 1 shown, including the following steps:

[0089] 1) Establish a power system power planning model, which is composed of objective functions and constraints; the specific steps are as follows:

[0090] 1-1) Establish the objective function of the power planning model:

[0091]

[0092] In the formula, W B Planning the total cost for the power supply, T all is the total cost of power investment during the system planning period, for CO 2 processing costs, is the cost of carbon trading. The objective function is the minimization of the total c...

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Abstract

The invention relates to an electric power system power supply planning method considering renewable energy uncertainty, and belongs to the technical field of electric power system planning. The method comprises the following steps: establishing a power supply planning model for a power system containing renewable energy sources; establishing an uncertainty set of renewable energy active output; and converting the power supply planning model by using the uncertainty set of the active output of the renewable energy source, and solving the converted power supply planning model by using a harmony search solving algorithm to obtain an optimal power supply planning scheme. On the premise of considering the power supply carbon transaction cost, fuzzy modeling is carried out on the uncertainty of renewable energy output, a reasonable power supply capacity planning scheme can be obtained, and the operation cost of a power system is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of power system planning, and in particular relates to a power system planning method considering the uncertainty of renewable energy sources. Background technique [0002] The burning of fossil fuels produces CO 2 Therefore, the traditional power system is gradually transformed into a high-proportion renewable energy power system, and new energy represented by photovoltaics and wind energy has begun to be connected to the grid on a large scale. Compared with traditional fossil energy power generation methods, new energy sources such as photovoltaics and wind energy have the advantages of being clean, efficient, and renewable, but their output has strong uncertainty, which affects power planning and decision-making. In the research of renewable energy uncertainty, there are mainly robust optimization methods and stochastic optimization methods. The former makes conservative power planning decisions by cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06Y02E40/70Y04S10/50
Inventor 葛毅胡晓燕李冰洁史静李琥袁晓昀李泽森王琳媛
Owner STATE GRID JIANGSU ECONOMIC RES INST
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