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Evaluation method and device for high-temperature superconducting cable access system

A technology for accessing systems and superconducting cables, which is applied in the field of evaluation methods and devices for high-temperature superconducting cable access systems, and can solve problems such as low sensitivity, difficulty in direct application, and inability to obtain results

Pending Publication Date: 2021-11-30
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0003] However, both the fuzzy comprehensive evaluation method and the TOPSIS method have certain defects.
The fuzzy comprehensive evaluation method often only considers the main factors and ignores the secondary factors, so that the evaluation results are not comprehensive enough, and the subjectivity of the evaluation is also obvious.
However, the TOPSIS method cannot get accurate results when the indicators are symmetrical, and can only sort the pros and cons of each evaluation object, and cannot be managed in different files, so the sensitivity is not high
At the same time, due to the large differences between the high-temperature superconducting cable access system and the conventional grid access in terms of system structure, cost composition, and technical impact on the grid, the above two methods are difficult to comprehensively evaluate the HTS cable access system. direct application

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  • Evaluation method and device for high-temperature superconducting cable access system
  • Evaluation method and device for high-temperature superconducting cable access system
  • Evaluation method and device for high-temperature superconducting cable access system

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Embodiment Construction

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0064] It should be understood that the step numbers used herein are only for convenience of description, and are not intended to limit the execution order of the steps.

[0065] It should be understood that the terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an"...

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Abstract

The invention provides an evaluation method and device for a high-temperature superconducting cable access system, and the method comprises the steps: obtaining related parameters of a superconducting cable, and calculating technical and economic indexes according to the related parameters of the superconducting cable; wherein the technical and economic indexes comprise a power supply reliability index, a transferred electric quantity, a short-circuit current, a line loss rate and a whole life cycle cost; grading the technical and economic indexes through a rank sum ratio method to obtain interval values of index grading; taking the interval value of the index grading as a parameter of a membership function, and scoring the technical and economic indexes to obtain score values of the technical and economic indexes. According to the method, characteristics of a power grid planning classic evaluation method and a superconducting power transmission system are combined, and the indexes can be graded and the to-be-selected schemes can be quantitatively evaluated no matter when the comparison index difference is not large or the to-be-selected schemes are more.

Description

technical field [0001] The invention relates to the technical field of high-temperature superconducting cables, in particular to an evaluation method and device for a high-temperature superconducting cable access system. Background technique [0002] For power grid planning, the power supply reliability and investment cost of the power grid are the most important. Therefore, the commonly used power grid evaluation mechanism in our country is mainly analyzed from two aspects of economy and security. The power grid comprehensive evaluation method can combine economic indicators (life cycle cost) and technical indicators (such as power outage frequency, transfer power, etc.) to determine the final quantitative evaluation results. The common methods are fuzzy comprehensive evaluation method and TOPSIS method. [0003] However, both the fuzzy comprehensive evaluation method and the TOPSIS method have certain defects. The fuzzy comprehensive evaluation method often only considers...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 汪政彭向阳魏俊涛周原李志峰赵兵金之俭吕忠麟姜绍艳张雷
Owner GUANGDONG POWER GRID CO LTD
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