Method and system for determining full-life-cycle reliability of flexible direct-current power transmission system
A life-cycle, power transmission system technology, applied in the field of electric power, can solve problems such as inability to adapt to intercontinental power transmission, and achieve the effect of improving calculation results
Pending Publication Date: 2021-04-20
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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Problems solved by technology
[0002] With the construction of the global energy Internet, the existing power transmission and transformation technology and equipment can no longer meet the needs of intercontinental power transmission, and the flexible DC transmission has the characteristics of flexible and fast power adjustment, no need for reactive power compensation, and long transmission distance, which can be applied In renewable energy grid connection, DC network construction, asynchronous grid interconnection, large-scale city power supply, improvement of power grid power quality, island and offshore platform power supply, and realization of multi-terminal DC transmission network
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[0055] In order to better understand the present invention, the content of the present invention will be further described below with reference to the accompanying drawings and examples.
[0056] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0057] In order to meet the needs of intercontinental power transmission, it is urgent to understand the reliability of the flexible DC transmiss...
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The invention discloses a method and a system for determining the full-life-cycle reliability of a flexible direct-current power transmission system, and the method comprises the steps: analyzing the flexible direct-current power transmission system in the full life cycle of a flexible DC power transmission system through FMECA (Failure and Hazardous Analysis) and HAZOP (Hazardous Analysis and Operability Analysis), and determining a fault mode and a potential risk of each key device in the flexible DC power transmission system; and performing reliability, availability, maintainability and safety RAMS analysis on the fault mode and potential risk of each key device in the flexible DC power transmission system and the current maintenance strategy of the flexible DC power transmission system, and determining the reliability and spare parts of the flexible DC power transmission system. When the reliability is calculated in the whole life cycle of the flexible DC power transmission system, the current maintenance strategy is considered, so that the calculation result of the reliability is improved.
Description
technical field [0001] The invention relates to the field of electric power, in particular to a method and a system for determining the reliability of a flexible direct current transmission system throughout its life cycle. Background technique [0002] With the construction of the global energy Internet, the existing power transmission and transformation technology and equipment can no longer meet the needs of intercontinental power transmission, and flexible DC transmission has the characteristics of flexible and fast power adjustment, no reactive power compensation, and long transmission distance, which can be applied In renewable energy grid connection, DC network construction, asynchronous grid interconnection, large-scale city power supply, improvement of grid power quality, island and offshore platform power supply, and realization of multi-terminal DC transmission network. [0003] However, with the continuous improvement of the voltage level and transmission capacit...
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IPC IPC(8): G06F30/20G06Q10/00G06Q10/06G06Q50/06G06F111/08G06F113/04G06F119/02
Inventor 涂莉阳岳希杨杰杜镇宇陈靖思孙同越
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD