A Transmission Network Expansion Planning Method Considering Grid Structure Optimization

A power grid structure and transmission network technology, applied to load forecasting, electrical components, circuit devices, etc. Optimum coordination between cost and operating cost

Active Publication Date: 2021-11-12
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
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Problems solved by technology

[0003] In the decision-making process of traditional power grid planning, the current grid structure is usually considered unchanged, and the decision is made whether the candidate planning transmission components are put into operation and construction. This method only optimizes the incremental grid, while ignoring the flexibility of the current grid structure adjustment. Existing conservatism, which is not conducive to realizing the economy of grid planning investment

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  • A Transmission Network Expansion Planning Method Considering Grid Structure Optimization
  • A Transmission Network Expansion Planning Method Considering Grid Structure Optimization
  • A Transmission Network Expansion Planning Method Considering Grid Structure Optimization

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Embodiment Construction

[0055]In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily limiting the ...

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Abstract

The invention discloses a transmission network expansion planning method considering the optimization of the grid structure, including: planning a load forecast value within a time period according to the current grid component parameters, planning a power supply planning scheme within a planning time period, and grid components and path schemes for grid planning candidates . An optimization model is constructed, which aims to minimize the sum of transmission network planning investment cost and power generation cost within the planning period and includes constraints. The constraints in the optimization model are converted into an easy-to-solve mixed integer linear programming model, and the optimization model is solved by using the mixed integer linear programming method, and the final transmission network expansion planning scheme considering the grid structure optimization is obtained. It can be used for planning and decision-making of transmission network, which is conducive to promoting the coordination of power grid planning and operation, and improving the accuracy of power grid planning schemes; the present invention can realize the optimal coordination of power grid planning costs and operating costs, help promote lean management of power grid planning, and improve power grid planning. Economics of planning investments.

Description

technical field [0001] The invention relates to the technical field of grid planning, in particular to a transmission grid expansion planning method considering grid structure optimization. Background technique [0002] Power grid planning is based on medium and long-term load forecasting and power supply planning schemes to pre-arrange the power grid development and construction schemes in the forward-looking time period to meet the demand for load growth. With the continuous advancement of power system reform, the source-load balance trading methods in the power system are complex and changeable, and the source-load distribution is becoming increasingly uneven. How to develop a power grid that supports source-load balance is a problem that deserves great attention. [0003] In the decision-making process of traditional power grid planning, the current grid structure is usually considered unchanged, and the decision is made whether the candidate planning transmission compon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06315G06Q50/06H02J3/00H02J3/003H02J2203/20Y04S10/50
Inventor 孙东磊李雪亮郑志杰刘晓明张杰杨金洪曾军杨思李文博杨波王轶群杨斌杨扬李兆飞刘志敬
Owner RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
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