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Weak element determination method for electric-gas interconnection system

A technology for interconnecting systems and determining methods, which is applied in data processing applications, instruments, calculations, etc., and can solve problems such as risks and failures in the reliability of natural gas grids and power systems

Active Publication Date: 2019-04-05
CHONGQING UNIV
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Problems solved by technology

However, since both the natural gas grid and the power system are complex systems with multiple components, the natural gas source, natural gas pipeline, natural gas compressor of the natural gas grid, and the generator set, power transmission line, and disconnector of the power system are all faulty. risks of
These potential failures put both the natural gas grid and the power system at risk of reliability

Method used

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  • Weak element determination method for electric-gas interconnection system
  • Weak element determination method for electric-gas interconnection system
  • Weak element determination method for electric-gas interconnection system

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Embodiment Construction

[0060] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0061] Such as figure 1As shown, the present invention discloses a method for determining weak components of an electrical-gas interconnection system, comprising the following steps:

[0062] S1. Randomly sample the state of the components in the electrical-gas interconnection system, and execute S2;

[0063] According to the basic parameters of the power system and natural gas network, the risk contribution of the components of the power system and natural gas network is calculated, and then the gas generator capacity outage probability table can be obtained, and then the state of the components in the electric-gas interconnection system is randomly sampled. The sampling method can be Monte Carlo random sampling.

[0064] S2. Determine whether the electrical-gas interconnection system loses load, if yes, execute S3, if not, return to execute S1;

[0065] ...

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Abstract

The invention discloses a weak element determination method for an electric-gas interconnection system which comprises the following steps: S1, Performing random sampling on element states in the electric-gas interconnection system, and executing the step S2; S2, judging whether the electric-gas interconnection system loses load or not, if yes, executing the step S3, and if not, returning to execute the step S1; S3, calculating the risk contribution of each element in the electric-gas interconnection system; And S4, checking whether the sampling precision is sufficient or not, if yes, calculating risk contribution indexes of all elements, screening weak elements based on the risk contribution indexes, and if not, executing the step S1. The risk of the fault of the electric-gas interconnection system is contributed to different elements is determined, so that the contribution of different elements to the fault is determined, weak elements in the whole system are found, workers can conveniently improve the weak elements, and stability of the whole electric-gas interconnection system is improved.

Description

technical field [0001] The invention belongs to the technical field of evaluation methods for grid-connected micro-grid reliability, and in particular relates to a method for determining weak components of an electrical-gas interconnection system. Background technique [0002] As a primary energy source, natural gas plays an increasingly important role in power generation systems. Gas generators have the advantages of wide output power range, quick start and stop, reliable operation, high power generation quality, and simple maintenance. However, since both the natural gas grid and the power system are complex systems with multiple components, the natural gas source, natural gas pipeline, natural gas compressor of the natural gas grid, and the generator set, power transmission line, and disconnector of the power system are all faulty. risks of. These potential failures put both the natural gas grid and the power system at risk of reliability. [0003] Through research, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q10/0639G06Q50/06
Inventor 胡博谢开贵聂佳焰李牧水孙青松汪硕承
Owner CHONGQING UNIV
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