A Reliability Evaluation Method of Power Generation System Based on Generator Importance

A technology for power generation systems and generators, applied in data processing applications, instruments, calculations, etc., can solve problems such as complex solution processes, and achieve the effects of accurate calculation, strong processing capacity, and high efficiency

Active Publication Date: 2020-08-18
TONGJI UNIV
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Problems solved by technology

The effect of sample variance reduction is closely related to the new probability mass function (called the optimal probability mass function), and the solution process for the optimal probability mass function is usually complicated, making it an important factor restricting the application of important sampling methods

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  • A Reliability Evaluation Method of Power Generation System Based on Generator Importance
  • A Reliability Evaluation Method of Power Generation System Based on Generator Importance
  • A Reliability Evaluation Method of Power Generation System Based on Generator Importance

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Embodiment Construction

[0047] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the invention and provides detailed implementation and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0048] Such as figure 1 As shown, this embodiment provides a method for evaluating the reliability of a power generation system based on state space segmentation of generator importance, including steps:

[0049] S1. Determine the importance of each generator in the power generation system based on the cross-entropy pre-sampling process:

[0050]

[0051] Among them, u j is the original outage rate of the jth generator in the power generation system consisting of C generators, v opt-j is the optimal outage rate of the jth generator in the power generation system obtained by cross-entropy ...

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Abstract

The invention relates to a power generation system reliability evaluation method based on power generator importance. The method comprises the steps that 1) the importance of each power generator in a power generation system is acquired; 2) the importance vector formed by the importance of each power generator is sorted, and a complete state space is divided according to the importance of each power generator in the sorted power generation system; and 3) the reliability index of the power generation system is calculated according to the divided complete state space. Compared with the prior art, the method provided by the invention has the advantages of accurate calculation, high efficiency, spatial segmentation, small calculation amount, wide applicability and the like.

Description

technical field [0001] The invention relates to the field of power generation system reliability evaluation, in particular to a power generation system reliability evaluation method based on generator importance. Background technique [0002] Power system reliability assessment is an important task in power system planning and operation stages. Due to the large room for improvement in the calculation efficiency of the existing reliability index evaluation methods and the requirement for online calculation of the reliability index, how to further improve the calculation speed of the reliability index under the premise of ensuring the accuracy of the reliability index has always been a problem. is a subject of much concern. [0003] At present, in power system reliability assessment, there are mainly two kinds of methods with good application effect. The first type is called the state space segmentation method. Its basic idea is to divide the complete system state space into...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06
Inventor 林济铿王少伟刘阳升
Owner TONGJI UNIV
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