Electric power and natural gas combined system operation optimization method considering natural gas transmission dynamics

A joint system and operation optimization technology, applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc.

Pending Publication Date: 2020-08-28
ZHEJIANG UNIV
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Problems solved by technology

[0005] Aiming at the problems in the above-mentioned background method, the present invention provides a method for optimizing the operation of the combined power and natural gas system considering the dynamics of natural gas transmission, which solves the problem of the reliability judgment method of the combined power and natural gas system under the premise of considering the dynamic characteristics of natural gas transmission

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  • Electric power and natural gas combined system operation optimization method considering natural gas transmission dynamics
  • Electric power and natural gas combined system operation optimization method considering natural gas transmission dynamics
  • Electric power and natural gas combined system operation optimization method considering natural gas transmission dynamics

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Embodiment Construction

[0128] Further description will be given below in conjunction with the embodiments and accompanying drawings.

[0129] The embodiment situation implemented according to the complete method of content of the present invention is as follows:

[0130] Process to obtain the operational reliability of the combined power and natural gas system composed of the IEEE combined power and natural gas system reliability test system and the Belgian natural gas transmission system in a test case.

[0131] First, initialize the parameters of the combined power and natural gas system. The schematic diagram of the combined system of electricity and natural gas is as follows: figure 1As shown, the original data of the combined power and natural gas system and the natural gas transmission system contained in it come from open literature, Table 1, Table 5, 6, 7, Table 12 and "De Wolf D, Smeers Y. The gas transmission problem solved by an extension of the simplex algorithm [J]. Management Science...

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Abstract

The invention discloses an electric power and natural gas combined system operation optimization method considering natural gas transmission dynamic. The method comprises the following steps: firstly,establishing an equipment operation reliability model of the electric power and natural gas combined system through a transient Markov process, and performing simulating by utilizing a time sequenceMonte Carlo method to obtain a state sequence of the electric power and natural gas combined system; secondly, carrying out multi-stage emergency fault state processing of the electric power and natural gas combined system which includes: pre-scheduling an emergency fault state by using a steady-state electrical joint optimization power flow method, simulating a real operation state of a natural gas system by using a natural gas system transient simulation method, and simulating a real operation state of an electric power and natural gas joint system by using an electric power optimization power flow method; and finally, through time sequence Monte Carlo simulation based on the off-line transient process set, accelerating operation reliability parameter calculation, and performing operation optimization.

Description

technical field [0001] The invention relates to a reliability processing guarantee method for a power grid system, in particular to an operation reliability calculation and operation optimization method for an electric power and natural gas combined system considering the dynamic characteristics of natural gas transmission, and belongs to the field of operation optimization and reliability analysis of integrated energy systems. Background technique [0002] As the world pays attention to low-carbon and sustainable development, natural gas has gradually become an efficient and clean fossil fuel for power generation. According to the monthly energy report released by the U.S. Department of Energy in November 2019, the proportion of natural gas among all primary chemical energy sources for power generation increased by 14.59% compared with the previous year. Due to the enhanced coupling between the combined power system and natural gas system, these two originally independent e...

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Application Information

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IPC IPC(8): G06F30/20G06F119/02
CPCG06F30/20G06F2119/02
Inventor 丁一王盛叶承晋惠红勋
Owner ZHEJIANG UNIV
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