Method and device for industrial control by aid of sag monitoring
A technology for industrial control and sag, applied in measurement devices, program control in sequence/logic controllers, electrical program control, etc., can solve problems such as large investment, comprehensive monitoring and control of unfavorable power grids, and limitation of effective range of industrial control. , to achieve the effect of saving costs and realizing full-line monitoring and control
Active Publication Date: 2012-11-07
QINGYUAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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Problems solved by technology
These methods need to install corresponding measuring elements or shooting cameras and other equipment on the transmission line. Since the investment of these equipment is often large, it is impossible to realize full-line monitoring
That is to say, it can only selectively monitor the sag of the transmission line, and the effective range of industrial control is limited, which is not conducive to the comprehensive monitoring and control of the safe operation of the power grid.
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[0021] In order to further illustrate the technical means adopted by the present invention and the achieved effects, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments.
[0022] see figure 1 , is a schematic flow chart of the method for industrial control through sag monitoring in the present invention. The method for carrying out industrial control by sag monitoring of the present invention comprises the following steps:
[0023] S101 establishing a temperature field model of the transmission line according to various parameters affecting the temperature field of the transmission line;
[0024] The various parameters affecting the temperature field of the transmission line may include one or more of the current, voltage, load, model, design sag, specific heat capacity value of the transmission line material, the corresponding ambient temperature of the transmi...
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The invention discloses a method for industrial control by the aid of sag monitoring. The method includes building a temperature field model of a power transmission line according to various parameters affecting a temperature field of the power transmission line; obtaining numerical values of the parameters; computing temperature values of the power transmission line; computing sag values of the power transmission line; and carrying out industrial control according to the computed sag values of the power transmission line. The invention further discloses a device for industrial control by the aid of sag monitoring. The temperature field model of the power transmission line is built according to the parameters affecting the temperature field of the power transmission line. Equipment does not need to be additionally mounted on the power transmission line when the temperature values of the power transmission line are computed. The sag values of the power transmission line can be further computed and the industrial control can be carried out according to the computed temperature values. The total power transmission line can be monitored and controlled when the sag monitoring and the industrial control are carried out due to the fact that cost for mounting the monitoring equipment on the power transmission line is saved.
Description
technical field [0001] The invention relates to the technical field of sag monitoring of power transmission lines, in particular to a method for performing industrial control through sag monitoring and a device for performing industrial control through sag monitoring. Background technique [0002] Sag is one of the important indicators of line transmission equipment operation and maintenance, and its size is directly related to the safe and stable operation of transmission lines. Due to the long-term impact of icing, temperature rise and wind blowing in nature, the sag of transmission lines will change greatly accordingly. Moreover, due to the demand for increasing electricity load in recent years, many existing transmission lines have raised the maximum allowable temperature of transmission lines from 70°C to 80°C in order to improve the transmission capacity. In this case, the sag of the transmission line becomes the main constraint. To sum up, it is necessary to monitor...
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IPC IPC(8): G01B21/02G05B19/04
Inventor 雷国伟苏超周亚兵阮国恒祝贺曾伟洲何伟明张涛
Owner QINGYUAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD