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Intelligent online monitoring and early warning method of AC/DC (Alternating Current/Direct Current) integrated power supply for substation

A monitoring and early warning, DC power system technology, applied in power testing and other directions, can solve the problems of real-time data information analysis, inability to predict dangerous situations, and inability to evaluate the health status of AC-DC integrated power supply for substation stations, and achieve pre-judgment results. accurate effect

Active Publication Date: 2013-04-03
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

[0002] The intelligent monitoring system of AC-DC integrated power supply for substation includes AC power system, DC power system, UPS power system, communication power system and INV power system. It is impossible to evaluate the operation health status of the AC-DC integrated power supply used in the substation by analyzing the information, so that it is impossible to predict the upcoming danger

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  • Intelligent online monitoring and early warning method of AC/DC (Alternating Current/Direct Current) integrated power supply for substation
  • Intelligent online monitoring and early warning method of AC/DC (Alternating Current/Direct Current) integrated power supply for substation

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Embodiment Construction

[0046] As shown in Fig. 1, the device used in the intelligent online monitoring method of the AC-DC integrated power supply for the substation station of the present invention includes an AC power monitoring device, a DC power monitoring device, a UPS power monitoring device and a total integrated power monitoring device.

[0047] The intelligent online monitoring method of the AC-DC integrated power supply for the substation station of the present invention comprises the following steps:

[0048] Correctness analysis of power supply configuration for S1 station

[0049] Obtain the fixed value set by each power system, and compare the fixed value with the best theoretical value of each power system. If the value is set within the range of the theoretical value, it means normal; early warning;

[0050] For example: the optimal theoretical value of the equalized charging voltage of the charging device is calculated according to DL / T 5120 5.1.3.2, and should be 2.30 to 2.35 time...

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Abstract

The invention discloses an intelligent online monitoring and early warning method of an AC/DC (Alternating Current/Direct Current) integrated power supply for a substation. The method comprises the following steps: analyzing the configuration correctness of the station power supply; checking the health status of the station power supply; monitoring the operation standardization of the station power supply; managing elements of the station power supply; analyzing intersystem data of the station power supply; analyzing data in a single system of the station power supply; and performing time curve analysis on key parameters of key equipment. According to the method, by virtue of the time curve analysis on the real-time data, the classified statistics of difference relations between the real-time data and an analysis model is implemented, and the data with large difference and an initial value are tracked in real time for relevance comparison; and if the difference change is irregular, or the change range is large, the system can increase collection times, and continuously adjust a calculation method, thereby obtaining a most precise change curve, precisely pre-judging the running health status of the system, and ensuring the accuracy of the pre-judging result along with time increase.

Description

technical field [0001] The invention relates to an intelligent online monitoring and early warning method for an AC-DC integrated power supply used in a substation. Background technique [0002] The intelligent monitoring system of AC-DC integrated power supply for substation includes AC power system, DC power system, UPS power system, communication power system and INV power system. The analysis of the information cannot evaluate the operation health status of the AC-DC integrated power supply used in the substation, so that the imminent danger cannot be predicted. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an intelligent online monitoring and early warning method for AC-DC integrated power supplies for substations, which can effectively analyze real-time data information and monitor the operating health status of AC-DC integrated power supplies for substations. Carry out assessments to predict impending d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/40
Inventor 梅成林叶千里刘玮杨忠亮刘平金林
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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