Monitoring method of combined unit status in smart substation
A technology of intelligent substation and unit state, applied in the field of intelligent substation, can solve the problems of operation, maintenance, debugging and accident repair blind area and so on
Active Publication Date: 2015-08-26
WUHAN GUODIAN WUYI ELECTRIC
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Problems solved by technology
However, the existing methods only record the change process of electrical quantities when recording power system fault files
However, in the smart substation, the merging unit, as the provider of electrical sampling in the whole station, has not made corresponding records, which brings blind spots to operation, maintenance, commissioning and accident repair
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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0024] An embodiment of the present invention provides a method for monitoring the status of a merging unit in a smart substation, which is used for monitoring the running status and synchronization status of a merging unit in a smart substation. The monitoring method for the state of the merging unit of the intelligent substation is realized by a fault recording device. The fault recording device is used in power plants, 220KV and above substations and 110KV important substations, which is convenient for analyzing power system faults and actions of relay protection and safety automatic devices during accidents, so as to quickly determine the location of line faults . Generally speaking, the existing fault recorder includes a front-en...
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The invention discloses a monitoring method for the merging unit state of an intelligent transformer station. The method is used for monitoring the operating state and the synchronous state of a merging unit through a fault recording device, and comprises the following steps: S1, the fault recording device receives the sampled value message amount sent out by the merging unit within per unit time, the merging unit sends out sampled value message signals, the sampled value message amount is enabled to form first recording data, and the sampled value message signals sent out by the merging unit is enabled to form second recording data; S2, the first recording data and the second recording data are enabled to form a first oscillogram and a second oscillogram respectively after being subjected to analysis treatment, whether the operation of the merging unit is normal or not can be judged through the first oscillogram, and whether the sampled value message signals sent out by the merging unit are synchronous or not can be judged through the second oscillogram. Therefore, the operation state and synchronous state of the merging unit can be monitored comprehensively, the state of the merging unit can be known in time, and blind zones in operation, maintenance, debugging and accident maintenance are avoided.
Description
technical field [0001] The invention relates to the relevant field of an intelligent substation, in particular to a method for monitoring the state of a merging unit of an intelligent substation. Background technique [0002] Smart grid is the development trend of power system, and smart substation is the basis of smart grid. The smart substation is based on the DL / T860 standard. It has the characteristics of intelligent primary equipment, digitized information of the whole station, networked communication platform, and standardized information sharing. It is a modern substation that can realize information sharing and interoperability between smart electrical equipment in the substation . [0003] DL / T860 is an industry standard for substation automation systems based on network communication platforms. The substation communication protocol system DL / T86 divides the substation communication system into three layers: substation layer, interval layer and process layer. The...
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IPC IPC(8): H02J13/00
CPCY02E60/00Y04S10/16
Inventor 付毅邹涛林敏王鹏飞章乐
Owner WUHAN GUODIAN WUYI ELECTRIC