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Method for reliability evaluation of full voltage classes

A reliable, full-voltage technology, applied in instruments, data processing applications, calculations, etc., can solve problems such as simplicity and cannot reflect the multi-voltage level of the power grid, and achieve the effect of improving the reliability level

Active Publication Date: 2014-07-16
贵州电网公司电网规划研究中心 +1
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Problems solved by technology

However, the test system is relatively simple and cannot reflect the complexity of the real grid including multiple voltage levels and multiple types of electrical equipment.

Method used

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  • Method for reliability evaluation of full voltage classes
  • Method for reliability evaluation of full voltage classes
  • Method for reliability evaluation of full voltage classes

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Embodiment Construction

[0018] The process flow of the method for evaluating the reliability of the full voltage level considering the equivalent model of the main wiring of the substation proposed by the present invention is as follows: figure 1 As shown, the specific implementation steps are as follows:

[0019] Step 1, analyze the topology of the power grid, divide the power grid into power generation system, transmission system, main wiring of substation and distribution system, the schematic diagram of main wiring of substation is as follows figure 1 shown.

[0020] Step 2, carry out reliability assessment on the power generation system and transmission system divided in step 1. When determining the node reliability index, in order to distinguish the difference in reliability determination results caused by different load shedding methods, when performing load shedding operations, record the proportion of the load shedding to the total load of the load node, and count the situation of all load ...

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Abstract

The invention relates to a method for reliability evaluation of full voltage classes. The method for reliability evaluation of full voltage classes comprises the steps that a power grid topology is analyzed, a power grid is divided into a power generation system, a power transmission system, a transformer substation main connecting wire and a power distribution system, reliability evaluation is conducted on the power generation system and the power transmission system when the power generation system and the power transmission system are in full load condition, the node reliability indexes of the power generation system and the power transmission system are taken as equivalent source parameters of the power distribution system, a transformer substation main connecting wire equivalent model is established and added to the power distribution system, the reliability index of the power distribution system is determined according to the minimum cutest method, and the reliability index of the full voltage classes is determined finally. By the adoption of the method for reliability evaluation of full voltage classes, reliability evaluation of the full voltage classes can be achieved, and the level of reliability evaluation of a power system is increased.

Description

technical field [0001] The invention relates to a method for assessing reliability of all voltage levels in a power system, and belongs to the technical field of reliability analysis of power systems. Background technique [0002] Power system reliability is the application of reliability theory in power systems, and it is a measure of the power system's ability to continuously supply power and energy to power users in accordance with acceptable quality standards and required quantities. According to the content of power system reliability assessment, the theoretical research on power system reliability is divided into three levels: the first level is the reliability assessment of the power generation system, the second level is the reliability assessment of the combined power generation and transmission system, and the third level is the power generation system. , Power system reliability assessment including power transmission system and power distribution system. On the ...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
Inventor 赵庆明程林李庆生田浩皮显松高滨蒋泽甫
Owner 贵州电网公司电网规划研究中心
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