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A power supply risk assessment method and system for power system

A technology of risk assessment and power system, which is applied in the field of power system dispatching, can solve the problems of not establishing a time-varying reliability model of the power system, and achieve the effects of improving real-time performance, accuracy, vigilance, and accuracy

Active Publication Date: 2020-12-11
JIANGSU ELECTRIC POWER CO +3
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Problems solved by technology

[0004] However, when the operational risk assessment is applied to the power supply risk assessment of the distribution network, a time-varying reliability model that can reflect the real-time operating conditions of the power system has not been established, and an operational risk index system and calculation system that can characterize the real-time reliability level in detail have not been established. real-time, etc.

Method used

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  • A power supply risk assessment method and system for power system
  • A power supply risk assessment method and system for power system
  • A power supply risk assessment method and system for power system

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Embodiment Construction

[0043] The specific technical content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] Such as figure 1 As shown, the present invention provides a power system-oriented power supply risk assessment system, including a power supply path assessment module, a power supply range assessment module, a risk assessment grading module and a risk presentation module. Among them, the power supply path evaluation module is used to search all the power supply paths of the components, and evaluate the safety factor of the power supply paths of the components through the number of power supply paths of the components. The coefficient is high, even if one of the paths fails, there are still multiple paths for backup. The power supply path assessment module transmits the power supply path as a risk assessment parameter to the risk assessment grading module. The power supply range evaluation mod...

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Abstract

The invention discloses a power supply risk assessment method and system for a power system. The method comprises the following steps that an assessment component is determined according to operation requirements for the power system; power supply paths of the component are searched, and stored; the power supply range of the component is searched, and all devices within the power supply range of the component are determined and stored; and according to all the power supply paths of the component as well as all the devices within the power supply range, the risk of the component is graded, and a risk grade of the component is obtained. The accuracy of risk grading can be effectively improved. Risk assessment is based on technical support of the power grid scheduling system, operation data of the power system is obtained in real time, and the instantaneity and accuracy of power supply risk assessment are further improved.

Description

technical field [0001] The invention relates to a power system-oriented power supply risk assessment method, and also relates to a power supply risk assessment system for realizing the method, belonging to the technical field of power system dispatching. Background technique [0002] The purpose of power system operation risk assessment is to evaluate the potential impact of disturbance events on the power system. The content of operational risk assessment mainly includes two aspects of the possibility and severity of disturbance events. At present, a large number of studies have been carried out on the operation risk assessment of power system, but most of them use deterministic models and analysis methods, which are suitable for large-scale transmission network or offline power grid planning research. However, the distribution network is usually a ring network structure, open-loop operation, that is, its feeder has radial characteristics, and it is likely to cause network...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/06
Inventor 韩冰张志昌赵家庆张令涛钱科军丁宏恩刘艳程大闯李春吕洋田江
Owner JIANGSU ELECTRIC POWER CO
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