技术领域technical field
本发明涉及一种电网故障监测方法，特别是涉及一种谐波量在线分析诊断线路实时状况的方法。The invention relates to a grid fault monitoring method, in particular to a method for analyzing and diagnosing the real-time status of a line on-line with harmonic quantities.
背景技术Background technique
目前县级电力公司多为大电网的受端，其35kV及110kV架空线路多以辐射双回运行方式为主，由于每条线路容量受限，其消谐能力弱，通过在线路两端安装谐波测量装置，两端谐波量分析对比，总结线路状况，线路消谐能力。其可以客观反映大风，雨、雪、雾霾、污闪、电晕、微细绝缘闪络，线下树木等缺陷对线路谐波的影响。At present, county-level power companies are mostly receiving ends of large power grids, and their 35kV and 110kV overhead lines are mainly operated in double-circuit radiation mode. Due to the limited capacity of each line, its harmonic elimination ability is weak. Wave measuring device, analysis and comparison of harmonics at both ends, summary of line conditions, and line harmonic elimination capabilities. It can objectively reflect the impact of strong winds, rain, snow, smog, pollution flashover, corona, micro-insulation flashover, and offline trees on line harmonics.
发明内容Contents of the invention
为了解决上述技术问题，本发明提供了一种谐波量在线分析诊断线路实时状况的方法。In order to solve the above-mentioned technical problems, the present invention provides a method for online analysis and diagnosis of real-time condition of a line by harmonic quantity.
本发明提供的谐波量在线分析诊断线路实时状况的方法，包括：步骤一，于线路两端分别安装谐波测量装置；步骤二，对比产生线路本身的影响，在与之前建立的数据标准库对比，研究谐波，从而分析线路的状况。The method for analyzing and diagnosing the real-time condition of the line by harmonic quantity provided by the present invention includes: Step 1, installing harmonic measuring devices at both ends of the line; Contrast, research harmonics, so as to analyze the condition of the line.
本发明是输电状态检修的延续，有利于线路管理，提高供电可靠性，同时积累大量谐波历史数据，可以为以后电缆分析做数据基础，未来的电缆线路，谐波分析运行状况，故障点定位是一种趋势。The present invention is a continuation of power transmission status maintenance, which is beneficial to line management, improves power supply reliability, and at the same time accumulates a large amount of harmonic historical data, which can be used as a data basis for future cable analysis, future cable lines, harmonic analysis of operating conditions, and fault location is a trend.
此项目将是另一种技术来实现了输电线路状态检修，它将克服人力巡视的缺点，如夜间巡视、特殊天气巡视，线路巡视周期出现时间空点，全天实时跟踪。此项技术适应于大电网受端局部小电网，并且其可为本单位积累定制的谐波数据库，为以后的谐波技术提供数据基础。This project will be another technology to realize the condition-based maintenance of transmission lines. It will overcome the shortcomings of human inspections, such as night inspections, special weather inspections, time slots in line inspection cycles, and real-time tracking throughout the day. This technology is suitable for local small power grids at the receiving end of large power grids, and it can accumulate customized harmonic databases for the unit, providing data basis for future harmonic technologies.
此项技术还可以推广到电缆线路。由于电缆线路受外界影响小，出现隐患不易被发现，谐波分析是不二的选择。This technology can also be extended to cable lines. Since the cable line is less affected by the outside world, hidden dangers are not easy to be found, so harmonic analysis is the only choice.
附图说明Description of drawings
图1示出了根据本发明的谐波量在线分析诊断线路实时状况的方法的一个实施例的示意图。Fig. 1 shows a schematic diagram of an embodiment of a method for analyzing and diagnosing real-time conditions of a line according to the present invention.
具体实施方式Detailed ways
下面结合附图说明根据本发明的具体实施方式。The specific implementation manners according to the present invention will be described below in conjunction with the accompanying drawings.
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明并不限于下面公开的具体实施例的限制。In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit.
图1示出了根据本发明的谐波量在线分析诊断线路实时状况的方法的一个实施例的示意图。Fig. 1 shows a schematic diagram of an embodiment of a method for analyzing and diagnosing real-time conditions of a line according to the present invention.
如图所示，本发明提供的谐波量在线分析诊断线路实时状况的方法，包括本发明提供的谐波量在线分析诊断线路实时状况的方法，包括：步骤一，于线路1两端分别安装谐波测量装置2；步骤二，对比产生线路本身的影响，在与之前建立的数据标准库3对比，研究谐波，从而分析线路的状况。谐波测量装置2均通过信号线4与所述数据标准库3电连接。As shown in the figure, the method for analyzing and diagnosing the real-time condition of the line by harmonic quantity provided by the present invention includes the method for analyzing and diagnosing the real-time condition of the line for harmonic quantity provided by the present invention, including: step 1, installing Harmonic measurement device 2; step 2, compare the influence of the line itself, compare with the previously established data standard library 3, study the harmonics, and analyze the condition of the line. The harmonic measurement devices 2 are electrically connected to the data standard library 3 through signal lines 4 .
本发明是输电状态检修的延续，有利于线路管理，提高供电可靠性，同时积累大量谐波历史数据，可以为以后电缆分析做数据基础，未来的电缆线路，谐波分析运行状况，故障点定位是一种趋势。The present invention is a continuation of power transmission status maintenance, which is beneficial to line management, improves power supply reliability, and at the same time accumulates a large amount of harmonic historical data, which can be used as a data basis for future cable analysis, future cable lines, harmonic analysis of operating conditions, and fault location is a trend.
此项目将是另一种技术来实现了输电线路状态检修，它将克服人力巡视的缺点，如夜间巡视、特殊天气巡视，线路巡视周期出现时间空点，全天实时跟踪。此项技术适应于大电网受端局部小电网，并且其可为本单位积累定制的谐波数据库，为以后的谐波技术提供数据基础。This project will be another technology to realize the condition-based maintenance of transmission lines. It will overcome the shortcomings of human inspections, such as night inspections, special weather inspections, time slots in line inspection cycles, and real-time tracking throughout the day. This technology is suitable for local small power grids at the receiving end of large power grids, and it can accumulate customized harmonic databases for the unit, providing data basis for future harmonic technologies.
此项技术还可以推广到电缆线路。由于电缆线路受外界影响小，出现隐患不易被发现，谐波分析是不二的选择。This technology can also be extended to cable lines. Since the cable line is less affected by the outside world, hidden dangers are not easy to be found, so harmonic analysis is the only choice.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308950.0ACN104330694A (en) | 2014-06-30 | 2014-06-30 | Method for analyzing and diagnosing real-time state of line online by utilizing harmonic amount |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308950.0ACN104330694A (en) | 2014-06-30 | 2014-06-30 | Method for analyzing and diagnosing real-time state of line online by utilizing harmonic amount |
| Publication Number | Publication Date |
|---|---|
| CN104330694Atrue CN104330694A (en) | 2015-02-04 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410308950.0APendingCN104330694A (en) | 2014-06-30 | 2014-06-30 | Method for analyzing and diagnosing real-time state of line online by utilizing harmonic amount |
| Country | Link |
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| CN (1) | CN104330694A (en) |
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|---|---|---|---|---|
| CN109116191A (en)* | 2018-11-02 | 2019-01-01 | 国网山西省电力公司电力科学研究院 | A kind of test of electric cable stoppage higher hamonic wave and detection system |
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| CN101441231A (en)* | 2008-09-27 | 2009-05-27 | 武汉大学 | Harmonic electric energy metering error analytical apparatus |
| CN102170124A (en)* | 2011-03-21 | 2011-08-31 | 江苏省电力试验研究院有限公司 | Early warning method of stable-state index of power quality |
| CN102299556A (en)* | 2010-06-25 | 2011-12-28 | 苏州太谷电力有限公司 | Real-time monitoring system of electric equipment |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101441231A (en)* | 2008-09-27 | 2009-05-27 | 武汉大学 | Harmonic electric energy metering error analytical apparatus |
| CN102299556A (en)* | 2010-06-25 | 2011-12-28 | 苏州太谷电力有限公司 | Real-time monitoring system of electric equipment |
| CN102170124A (en)* | 2011-03-21 | 2011-08-31 | 江苏省电力试验研究院有限公司 | Early warning method of stable-state index of power quality |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116191A (en)* | 2018-11-02 | 2019-01-01 | 国网山西省电力公司电力科学研究院 | A kind of test of electric cable stoppage higher hamonic wave and detection system |
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