Multi-stage power transmission network planning method and system considering flexibility of thermal power generating unit

A thermal power unit, flexible technology, applied in system integration technology, information technology support system, wind power generation, etc., can solve problems such as lack of load and wind power

Active Publication Date: 2020-10-20
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-stage transmission network planning method and system considering the flexibility of thermal power units, which aims to solve the problem of lack of load and wind power consideration in the multi-stage power grid planning decision-making in the prior art, and realize multi-stage joint decision-making solutions to improve the economy of power system planning and operation investment

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  • Multi-stage power transmission network planning method and system considering flexibility of thermal power generating unit
  • Multi-stage power transmission network planning method and system considering flexibility of thermal power generating unit
  • Multi-stage power transmission network planning method and system considering flexibility of thermal power generating unit

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[0121] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific implementation methods 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 lim...

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Abstract

The invention provides a multi-stage power transmission network planning method and system considering the flexibility of a thermal power generating unit. Based on the time value of funds, time sequence characteristics of load, wind power and the like are considered, a multi-stage power transmission network planning optimization model considering the flexibility transformation of the thermal powergenerating unit is constructed, a mixed integer nonlinear constraint condition in the optimization model is converted into a mixed integer linear constraint condition, and the converted mixed integerlinear planning model is solved by adopting a mixed integer linear planning method, thereby obtaining a multi-stage joint decision scheme of thermal power generating unit flexible transformation andpower transmission network planning, and improving the economy of power system planning operation investment.

Description

technical field [0001] The invention relates to the technical field of grid planning, in particular to a multi-stage transmission grid planning method and system considering the flexibility of thermal power units. Background technique [0002] Vigorously developing new energy is an inevitable choice to solve the current shortage of fossil energy and environmental pollution. Among new energy power generation technologies, wind power technology is the most mature and has the most value for large-scale development, and wind power has shown a trend of large-scale development worldwide. Affected by natural factors, wind power generation has obvious anti-peak characteristics, that is, the wind power output is low during the peak load period during the day, and the wind power output is high during the trough load period at night. Large-scale wind power grid integration also brings great challenges to power system planning and operation. [0003] The output power of thermal power ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/46H02J3/00G06Q10/04G06Q10/06G06Q50/06
CPCH02J3/381H02J3/466H02J3/003H02J3/004G06Q10/04G06Q10/06315G06Q50/06H02J2203/20H02J2300/28Y02E10/76Y02E40/70Y04S10/50
Inventor 孙东磊王轶群鉴庆之陈博白娅宁李文升赵龙李瑜马彦飞杨波王延硕张博颐朱毅付一木魏佳孙毅程佩芬
Owner RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
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