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Evaluation method of operational risk of electric system

A power system and operation risk technology, applied in the field of cascading failure analysis of power systems, can solve problems such as inability to assess the severity of accidents, affect the accuracy of the measurement system, and the system state probability model is not strict enough to achieve the effect of ensuring safe and stable operation

Inactive Publication Date: 2013-10-23
EAST CHINA ELECTRIC POWER TEST & RES INST +1
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Problems solved by technology

However, there is still room for improvement in the research on risk assessment methods. For example, the system state probability model used in assessing the possibility of accidents is not strict enough, the cascading failure model is not complete enough, a complete system risk index system has not been established, and it cannot be evaluated from multiple aspects. the severity of the accident, etc.
These deficiencies will affect the accuracy of measuring the risk to the system

Method used

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  • Evaluation method of operational risk of electric system
  • Evaluation method of operational risk of electric system
  • Evaluation method of operational risk of electric system

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Embodiment Construction

[0027] The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In these drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

[0028] now refer to figure 1 The power system operation risk assessment method according to the present invention is described.

[0029] Such as figure 1 As shown, in step S101, the power system operation risk assessment method according to the present invention first establishes a power system risk assessment index system.

[0030] Since the primary task of system operation risk assessment research is to establish an in...

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Abstract

The invention provides an evaluation method of an operational risk of an electric system. The method comprises the following steps: (1) risk evaluation index system of the electric system is established; (2) the index in the index system is calculated; (3) and evaluation to the operational risk of the electric system is performed according to the calculated value of the index. According to the evaluation method of the operational risk of the electric system, the risk evaluation is performed on potential incidents that endanger the operational safety in the electric system like an out-of-limit flow, an out-of-limit voltage, an out-of-stability voltage and cascading faults so that the safe and stable operation of a power grid is ensured.

Description

technical field [0001] The invention relates to the risk assessment of the power system, in particular to the cascading failure analysis of the power system. Background technique [0002] With the continuous development of the power system, the scale of the system is getting larger and the structure is more and more complex. Any accident may bring serious harm to the power system, and even bring great harm to the whole society. Therefore, it is very important to timely discover the risks affecting the safe operation of the power system and take countermeasures as soon as possible to ensure the safe operation of the power system and reliable power supply to users. [0003] At present, the research work in the field of power system risk assessment is mainly carried out from the aspects of static security risk, voltage stability risk, transient security risk, cascading failure risk, decision optimization based on risk assessment, etc., and has achieved remarkable research resul...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06
Inventor 冯煜尧杨增辉张焰
Owner EAST CHINA ELECTRIC POWER TEST & RES INST
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