Risk evaluation method comprehensively taking regard of system adequacy and system security

A technology for system safety and risk assessment, applied in the field of risk assessment that comprehensively considers system sufficiency and system safety, and can solve problems such as lack of overall indicators to characterize the system, insufficient consideration of cumulative effects of accidents, and inability to reflect system uncertainties.

Inactive Publication Date: 2017-06-09
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

However, the main defect of this deterministic criterion is that it cannot reflect the uncertain factors in the system operation, such as the randomness of load changes and component failures, and it is difficult to characterize the operation risk of the system; in addition, the selection of expected failure sets depends on the experience of operators , there may be cases where the effects of events with small probability and large consequences are magnified, and there may be cases where the cumulative effects of moderately severe accidents are not considered enough; in addition, the indicators of static safety assessment are only checked and analyzed for system state quantities, lacking a characterization system A general indicator of overall performance

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  • Risk evaluation method comprehensively taking regard of system adequacy and system security
  • Risk evaluation method comprehensively taking regard of system adequacy and system security
  • Risk evaluation method comprehensively taking regard of system adequacy and system security

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Embodiment Construction

[0139] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0140] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. These embodiments of the present invention may be referred to herein, individually or collectively, by the term "invention", which is for convenience only and is not...

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Abstract

The invention relates to a risk evaluation method comprehensively taking regard of system adequacy and system security. The method comprises steps that an evaluation object is determined; data verification is carried out; static and transient total fault intelligent scanning for a power grid is respectively carried out; risk evaluation is carried out; risk evaluation indexes are determined. The method is advantaged in that static risk evaluation based on static safety analysis and dynamic risk evaluation based on transient stabilization are realized, evaluation and analysis are more comprehensively carried out, a convenient operation mode and form display are provided for a user, and the method is mainly utilized to serve power grid operation mode, programming, scheduling and national security quality supervision departments.

Description

technical field [0001] The invention relates to a reliability analysis method in the field of large power grid security, in particular to a risk assessment method analysis method that comprehensively considers system adequacy and system security. Background technique [0002] The source of power system risk lies in the probabilistic characteristics of its behavior. Random failures of equipment in the system are often beyond the scope of human control, and there is always uncertainty in the load, so it is impossible to predict it accurately. The consequences of power system failures can range from localized to widespread blackouts. The economic consequences of a power outage are not just lost revenue for companies or lost power for customers, but also include indirect losses with social and environmental impacts. Electric utilities have long and relentlessly addressed systemic risk. For example, static safety assessment has been used in the electric power industry for many...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 芦晶晶宫春明李勤新孙璐黄毅臣孙永锋裘微江吕颖李顺昕孙树明邹卫美陈勇康建东郭中华刘欣赵炜炜罗春青张亮白俊杰佟德江秦长峰陈继林臧主峰刘娜娜刘琳何春江贾军茹周智强陈丹
Owner CHINA ELECTRIC POWER RES INST
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