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Method for determining multi-state reliability of high temperature superconducting cable system in power system

A high-temperature superconducting and cable system technology, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve the problems of unfavorable power system planning, design and operation, and the inability to quantitatively evaluate the reliability of power systems, so as to ensure the calculation efficiency Effect

Active Publication Date: 2014-03-05
TSINGHUA UNIV +1
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Problems solved by technology

[0004] At present, there is no research on the reliability of high-temperature superconducting cables in the world, so the reliability of power systems containing high-temperature superconducting cable systems cannot be quantitatively evaluated, which is not conducive to the planning, design and operation of power systems

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  • Method for determining multi-state reliability of high temperature superconducting cable system in power system
  • Method for determining multi-state reliability of high temperature superconducting cable system in power system
  • Method for determining multi-state reliability of high temperature superconducting cable system in power system

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Embodiment Construction

[0029] The multi-state reliability determination method of the high-temperature superconducting cable system in the power system proposed by the present invention, the structural diagram of the high-temperature superconducting cable system involved is as follows figure 1 As shown, the method includes the following steps:

[0030] (1) The high-temperature superconducting cable system includes four parts: high-temperature superconducting cable, refrigeration system, interface and relay protector. It is assumed that the relay protector in the high-temperature superconducting cable system is in a reliable working state, and the high-temperature superconducting cable system is The working state is divided according to the operating power. The high-temperature superconducting cable system operates at the rated power, which is a normal state. Under normal conditions, the high-temperature superconducting cable, refrigeration system and interface operate normally, or the refrigeration sys...

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Abstract

The invention relates to a method for determining the multi-state reliability of a high temperature superconducting cable system in a power system and belongs to the technical field of power system reliability analysis. The method comprises the following steps that: the working states of the high temperature superconducting cable system are divided into a normal state, a derating state and an outage state according to operating power; calculation formulas of the occurrence probabilities of the three states are respectively provided; and the operating power of the derating state can be determined through using a temperature-duration curve of a high temperature superconducting cable. According to the method of the invention, the requirements of the scheduling cycle of the power system for the maintenance time and operating power of the high temperature superconducting cable system under the derating state are combined with operating characteristics of the high temperature superconducting cable system itself; considerations are given to the operating characteristics of the high temperature superconducting cable system; and calculation efficiency of reliability analysis process can be ensured.

Description

technical field [0001] The invention relates to a method for determining multi-state reliability of a high-temperature superconducting cable system in a power system, and belongs to the technical field of power system reliability analysis. Background technique [0002] High-temperature superconducting cables in power systems are cables that exhibit superconductivity at the boiling point of liquid nitrogen (77k). Compared with conventional conductors, high-temperature superconductors have three basic properties: zero resistance, Meissner effect and Josephson effect. Due to the zero-resistance effect of high-temperature superconductors, high-temperature superconducting cables have the advantages of small size, light weight, low loss, and large transmission capacity, and can achieve low loss, high efficiency, and large-capacity power transmission. The normal operation of the high-temperature superconducting cable also requires the cooperation of the refrigeration system, the i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 程林冯华田浩高滨
Owner TSINGHUA UNIV
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