Intelligent substation secondary system integrity assessment method based on structure entropy weight method
A smart substation and secondary system technology, applied in data processing applications, instruments, calculations, etc., can solve the problem that the reliability index is not enough to fully express the operating status of the system
Inactive Publication Date: 2017-11-24
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +2
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Problems solved by technology
With the deepening of secondary system research, the existing reliability indicators are not enough to fully express the operating status of the system
Method used
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Embodiment 1
[0071] Embodiment 1: as Figure 1 to Figure 3 Shown; A kind of intelligent substation secondary system integrity assessment method based on structural entropy weight method, it comprises: described method step is as follows:
[0072] S1: Divide the secondary system of the smart substation according to intervals, construct logical node LN collections and logical connection LC collections owned by all distributed functions in all intervals; construct LN collections owned by each secondary equipment; construct upstream switches and optical fiber communication equipment The set of LCs;
[0073] S2: Using the structural entropy weight method, calculate the weights of all intervals in the whole station respectively, and obtain the weights of each distributed function under each interval;
[0074] S3: Aiming at the failure of the logical node in the secondary equipment, the disturbance degree D and the integrity degree I of the entire secondary system function when the logical node ...
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The invention discloses an intelligent substation secondary system integrity assessment method based on a structure entropy weight method. The method comprises the following steps: dividing an intelligent substation secondary system according to intervals, and constructing a logical node LN set and a logical connection LC set of all distributed functions under all intervals; constructing a LN set of each secondary device; constructing an LC set flowing through a switch and optical fiber communication equipment; calculating weight of all intervals of the total substation through the structure entropy weight method, and calculating weight of each distributed function under each interval; for failure of logical nodes in each secondary device, calculating the degree of disturbance of integrity of the function of the whole secondary system when the logical nodes fail respectively; and for failure of each secondary device, calculating the degree of disturbance of integrity of the function of the whole secondary system when each secondary device fails. The beneficial effect is that the method can quantitatively evaluate the degree of the influence on reliability of the intelligent substation secondary system when the logical nodes LN or the secondary devices fail.
Description
technical field [0001] The invention relates to the technical field of secondary systems of substations, in particular to a method for evaluating the integrity of secondary systems of intelligent substations based on a structural entropy weight method. Background technique [0002] The secondary system of the smart substation realizes the monitoring, control and protection of the primary system. Due to the failure of a certain secondary equipment, some functions cannot operate normally. At this time, the secondary system is working with a disease. Smart substations use a large number of new devices such as merging units and smart terminals. The same type of components in different bays may affect different distributed functions. The components in a certain bay may affect the functions of this bay and related bays at the same time, directly or indirectly affecting smart substations. The operation of the secondary system and the safe and reliable operation of the entire substa...
Claims
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Login to View More IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q10/06393G06Q50/06
Inventor 王洪彬徐亨邹晓莉张友强刁兴华童晓阳郭升钟加勇魏甦黄飞赵志伟欧林魏燕龚秋憬
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST