Quantitative analysis method for influence on grid real-time load control caused by communication failures

A technology of communication failure and real-time load, applied in the direction of instruments, data processing applications, resources, etc., can solve the problems of limited guiding significance of system operation and control, and achieve the effect of improving the calculation speed

Active Publication Date: 2016-07-06
SOUTHEAST UNIV
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Problems solved by technology

Existing research oversimplifies the system, or focuses on the network structure while ignoring the physical characteristics of the two systems, which has limited guiding significance for the actual system operation and control

Method used

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  • Quantitative analysis method for influence on grid real-time load control caused by communication failures
  • Quantitative analysis method for influence on grid real-time load control caused by communication failures
  • Quantitative analysis method for influence on grid real-time load control caused by communication failures

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Embodiment Construction

[0020] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0021] figure 1 It is a frame diagram of the communication system failure impact analysis proposed by the present invention. Such as figure 1 As shown, on the one hand, due to the influence of natural or human factors, the communication system faces the risk of failure, such as equipment failure, line failure and telecommunication service failure, which are specifically manifested as increased transmission delay, increased data error rate and communication interruption . The power business transmitted in the communication network will be affected by this. For example, when the transmission delay in the relay protection system is too large, it will cause the protection equipment to malfunction. On the other hand, the adjustment of the power grid operation status is carried out by analyzing the monitoring and control information and relying on the corr...

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Abstract

The present invention provides a quantitative analysis method for an influence on grid real-time load control caused by communication failures, and considers a power system and a communication system to be a coupled and interdependent complex system for analysis. The quantitative analysis method based on the influence on grid real-time load control caused by communication failures can make importance assessment on monitoring and control equipment in a grid through the load shedding quantity, and can implement risk assessment on the power communication complex system through statistical analysis on an equipment availability probability. Based on this, by taking potential risks of various communication failures occurrence and consequences thereof into consideration, centralized grid control measures are adjusted in real time to minimize the expanded risk of the grid accident, thereby providing an implementation basis to establish and design a grid online assistant decision-making system for communication risks.

Description

technical field [0001] The invention relates to the field of reliability analysis of electric power communication composite systems, in particular to a quantitative analysis method for the influence of communication faults on real-time load control of power grids. Background technique [0002] With the construction of the smart grid, the traditional power system has gradually evolved into a space-time multi-dimensional heterogeneous power cyber-physical fusion system (CPS, CyberPhysicalSystem) that is deeply integrated with the information system and the power system. While providing global information technology support for the real-time control of the wide-area power grid, the power CPS puts forward higher requirements for the reliability of information. Failures such as communication delays, code errors, and interruptions will make the global optimal coordination control of the interconnected grid lose its guarantee, and may even cause the controller to adopt wrong strate...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
Inventor 王琦徐筝汤奕李峰
Owner SOUTHEAST UNIV
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