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Dynamic capacity-increase full-cycle risk constraint and life evaluation method for local power grid

A local power grid and dynamic capacity-increasing technology, applied in the field of power systems, can solve the problems of uncertain dispatching decision-making, equipment health status and operational risks, etc., to reduce the risk of dynamic capacity-increasing operation and increase manual special inspection Monitoring and emergency intervention measures, the effect of solving load section blockage

Active Publication Date: 2017-09-19
上海海能信息科技股份有限公司 +2
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AI Technical Summary

Problems solved by technology

[0003] Then, in the evaluation and decision-making process of the dynamic capacity increase of the existing power grid, the dispatcher can roughly estimate the limit of the available capacity of the transmission channel, but they have almost no way of knowing the health status and operation risks of the equipment involved in the dynamic capacity increase, which brings a lot of problems to the dispatching decision. risk of uncertainty

Method used

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  • Dynamic capacity-increase full-cycle risk constraint and life evaluation method for local power grid

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Embodiment

[0024] Embodiment: The present invention formulates the risk control and evaluation process according to the three natural processes before dynamic capacity increase, during dynamic capacity increase and after dynamic capacity increase. figure 1 A detailed description of this application: in the attached drawings, the arrow solid line represents the process and closed-loop correction within each stage of dynamic capacity expansion; the dotted line represents the closed-loop feedback and correction between different stages.

[0025] Before dynamic capacity increase: Determine the real-time monitoring scope and monitored equipment of the local power grid based on the existing grid structure and operation mode, and establish the structure diagram of the local grid grid; based on historical operation information, current real-time information, forecast information, calculation analysis and simulation Information and equipment periodic pre-test results and other big data support, ev...

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Abstract

The invention discloses a dynamic capacity-increase full-cycle risk constraint and life evaluation method for local power grids. Through monitoring and early warning of thermal running parameters of key points of power transmission and transformation equipment in a capacity-increase full-cycle, closed-loop feedback of capacity-increase information and closed-loop correction of capacity-increase strategies, necessary on-site artificial special inspection monitoring and emergency intervention means are additionally adopted, dynamic capacity-increase running risks are reduced and controlled, load section obstruction problems caused by thermal stabilization are solved effectively to cope with N-1 and other running modes, and comprehensive running capabilities of power transmission and transformation equipment of local power grids or even of regional power grids are improved. Dynamic capacity-increase full-cycle running data is analyzed comprehensively, and running states and thermal life evaluation of power transmission and transformation (distribution) equipment are realized through a life evaluation analysis method.

Description

Technical field: [0001] The invention relates to the technical field of electric power systems, in particular to a full-cycle risk constraint and life assessment method for dynamic capacity increase of a local power grid. Background technique: [0002] With the development of the national economy, the contradiction between the development of power supply capacity and the growth of actual demand in some areas has become increasingly apparent. In order to actively cope with this situation, many technologies such as increasing the operating temperature, short-term dynamic capacity increase, and new heat-resistant lines have been widely used in the power grid system, which has greatly improved the power transmission capacity of the lines. Among them, the dynamic capacity increase technology achieves the effect of increasing the capacity of the transmission channel by tapping the potential of the existing power transmission and transformation equipment without transforming the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06H02J3/00H02J2203/20
Inventor 钱之银张伟政王忠强李正荣刘富利燕跃豪高峰高萌丁玉琴
Owner 上海海能信息科技股份有限公司
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