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A chance-constrained planning method for large-scale wind power grid connection

A reference grid, large-scale technology, applied in data processing applications, instruments, forecasting, etc., can solve problems such as difficult grid adaptability assessment, and achieve the effect of lean management

Active Publication Date: 2018-12-28
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing reference grid methods are all based on the deterministic source-load model, which is difficult to adapt to the grid development adaptability assessment under the background of large-scale wind power grid integration.

Method used

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  • A chance-constrained planning method for large-scale wind power grid connection
  • A chance-constrained planning method for large-scale wind power grid connection
  • A chance-constrained planning method for large-scale wind power grid connection

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Embodiment Construction

[0051] 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 reference grid opportunity constraint planning method adapted to large-scale grid connection of wind power, comprising the following steps: giving current grid data, load forecasting value in planning time period, planning scheme of wind farm in planning time period, output level distribution and grid transmission component scheme candidate for grid planning; the optimization model being constructed to minimize the sum of the investment cost and the operation cost of the transmission network in the planning period, and including the constraint conditions to ensure theacceptance level of wind power. The constraint conditions are transformed into mixed integer linear programming (MILP) model, and the conventional mixed integer linear programming (MILP) method is used to solve the optimization model, and the final reference power network optimization scheme is obtained. The invention can be used for evaluating the adaptability of the present power grid in a prospective time scale under the background of large-scale wind power grid connection, defining the development direction of the present power grid, and is an important means for realizing the precise investment of the power grid.

Description

technical field [0001] The invention relates to the technical field of electric power planning, in particular to a reference power grid opportunity-constrained programming method adapted to large-scale wind power grid connection. Background technique [0002] Resource and environmental problems are becoming more and more prominent, forcing the power grid to develop in a green direction. As the most mature renewable energy utilization technology, large-scale grid-connected wind power generation, the inherent randomness of its output power is increasingly endangering the safety of grid operation. How to take into account its random characteristics to improve grid security under random uncertainty is the current Challenges faced by grid development. As the transmission carrier between sources and loads, how to measure the adaptability of power grid development to source-load balance under stochastic uncertainty and how to adapt power grid planning to the development of source-...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/0637G06Q50/06Y02E40/70Y04S10/50
Inventor 孙东磊赵龙杨思朱毅张杰杨金洪杨斌王男曹相阳王轶群薄其滨付一木魏佳马彦飞
Owner RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
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