技术领域technical field
本申请涉及电气测量领域，尤其涉及一种悬式绝缘子污秽度监测系统及方法。The present application relates to the field of electrical measurement, in particular to a suspension insulator pollution degree monitoring system and method.
背景技术Background technique
绝缘子是一种特殊的绝缘控件，能够在架空输电线路中起到重要的电位隔离作用。早年间绝缘子多用于电线杆，慢慢发展于高型高压电线连接塔的一端挂了很多盘状的绝缘体，它是为了增加爬电距离的，通常由玻璃或陶瓷制成，就叫绝缘子。An insulator is a special insulation control that can play an important role in potential isolation in overhead transmission lines. In the early years, insulators were mostly used on utility poles, and gradually developed into a high-voltage wire connection tower with many disc-shaped insulators hanging on one end. It is used to increase the creepage distance, usually made of glass or ceramics, and is called an insulator.
架空输电线路在运行过程中，空气中的尘土、盐碱、工业烟尘等各种微粒或鸟粪都会堆积在绝缘子外表面形成污秽层。近年来，我国工农业生产迅速发展，大气污染加剧，输电线路污闪问题日趋严重。据统计，在电力系统总事故数中，污闪事故次数仅次于雷害，位居第二，而污闪事故所造成的损失却是雷击事故的10倍。全国六大电网几乎都发生过大面积污闪，造成了很大的经济损失。During the operation of overhead transmission lines, various particles or bird droppings such as dust, saline and alkali, and industrial smoke in the air will accumulate on the outer surface of the insulator to form a dirty layer. In recent years, my country's industrial and agricultural production has developed rapidly, air pollution has intensified, and the pollution flashover problem of transmission lines has become increasingly serious. According to statistics, in the total number of accidents in the power system, the number of pollution flashover accidents is second only to lightning damage, and the loss caused by pollution flashover accidents is 10 times that of lightning strike accidents. Almost all of the country's six major power grids have experienced large-scale pollution flashovers, causing great economic losses.
在污闪防治方面，电力部门制定了一系列诸如加大爬电距离、涂防尘涂料、采用有机合成绝缘子、定期清扫、更换不良或零值绝缘子等防污闪措施，取得了一定的效果。但上述防污闪措施本质上均为被动型的预防，由于缺少对绝缘子污秽度有效的评估，导致污闪防治效果不是很理想。现有技术的对绝缘子污秽度的评估是通过定期停电取样，通过人工定期测量绝缘子表面的污秽度，此种方法方法需要线路停电，且高空作业时现场取样的工作危险度高，且对操作人员的工作经验要求高，否则容易得到误差较大的数据。因此导致此种方法测量绝缘子污秽度操作繁琐、耗时长、效率低，影响范围大。In terms of pollution flashover prevention, the power sector has formulated a series of anti-pollution flashover measures, such as increasing creepage distance, applying dust-proof paint, using organic synthetic insulators, regular cleaning, and replacing defective or zero-value insulators, etc., and achieved certain results. However, the above-mentioned anti-pollution flashover measures are passive prevention in nature. Due to the lack of effective evaluation of the pollution degree of insulators, the effect of pollution flashover prevention and control is not very satisfactory. In the prior art, the pollution degree of insulators is evaluated through regular power outage sampling and manual measurement of the pollution degree on the insulator surface. This method requires power outages on the line, and the work risk of on-site sampling during high-altitude operations is high, and it is harmful to operators. The work experience requirements are high, otherwise it is easy to get data with large errors. Therefore, this method of measuring the pollution degree of insulators is cumbersome, time-consuming, inefficient, and has a wide range of influence.
目前也有部分单位采用在杆塔上悬挂取样绝缘子串样品，并定期取样进行污秽度的测量，但是取样绝缘子未带电，无法真实模拟绝缘子的实际运行工况。At present, some units also hang sampling insulator string samples on poles and towers, and take samples regularly to measure the degree of pollution. However, the sampling insulators are not charged, and the actual operating conditions of the insulators cannot be truly simulated.
综上所述，现有技术中在进行运行输电线路绝缘子串污秽度测试时，操作繁琐、耗时长、效率低，影响范围大，影响电力系统的安全运行。To sum up, in the prior art, when testing the pollution degree of insulator strings of operating transmission lines, the operation is cumbersome, time-consuming, low in efficiency, and the scope of influence is large, which affects the safe operation of the power system.
发明内容Contents of the invention
本申请提供了一种悬式绝缘子污秽度监测系统及方法，以解决现有检测绝缘子污秽度时的操作繁琐、耗时长、效率低，影响范围大的问题。The present application provides a suspended insulator pollution degree monitoring system and method to solve the existing problems of cumbersome operation, long time consumption, low efficiency and large influence range when detecting the pollution degree of insulators.
第一方面，本申请提供了一种悬式绝缘子污秽度监测系统，该系统包括：取能分压器、无感电阻、泄漏电流监测模块、湿度采集模块、处理器、取样悬式绝缘子；In the first aspect, the present application provides a suspension insulator pollution degree monitoring system, the system includes: an energy harvesting voltage divider, a non-inductive resistor, a leakage current monitoring module, a humidity collection module, a processor, and a sampling suspension insulator;
所述取能分压器一端与电力系统中的输电导线连接，另一端与电力杆塔的横担连接；One end of the energy-taking voltage divider is connected to the transmission wire in the power system, and the other end is connected to the crossarm of the power tower;
所述取能分压器的第一输出端与所述取样悬式绝缘子通过隔离开关连接；The first output terminal of the energy harvesting voltage divider is connected to the sampling suspension insulator through an isolation switch;
所述取能分压器的第二输出端分别与所述泄漏电流监测模块和所述湿度采集模块连接，用于分别给所述泄漏电流监测模块和所述湿度采集模块供电；The second output end of the energy harvesting voltage divider is respectively connected to the leakage current monitoring module and the humidity collection module, and is used to supply power to the leakage current monitoring module and the humidity collection module respectively;
所述取样悬式绝缘子一端与所述第一输出端连接，另一端与所述无感电阻连接；One end of the sampling suspension insulator is connected to the first output end, and the other end is connected to the non-inductive resistor;
所述无感电阻一端与所述取样悬式绝缘子连接，另一端与所述横担连接；One end of the non-inductive resistor is connected to the sampling suspension insulator, and the other end is connected to the cross arm;
所述湿度采集模块与所述泄漏电流监测模块连接，将采集到的湿度数据传输给所述泄漏电流监测模块；The humidity collection module is connected to the leakage current monitoring module, and transmits the collected humidity data to the leakage current monitoring module;
所述泄漏电流监测模块包括依次连接的电压采集单元、转换单元、通讯单元；所述电压采集单元采集所述无感电阻两端的电压信号；所述转换单元将所述电压信号转换成泄漏电流信号；所述通讯单元将所述泄漏电流信号和所述湿度数据传输给所述处理器；The leakage current monitoring module includes a voltage acquisition unit, a conversion unit, and a communication unit connected in sequence; the voltage acquisition unit acquires the voltage signal at both ends of the non-inductive resistance; the conversion unit converts the voltage signal into a leakage current signal ; The communication unit transmits the leakage current signal and the humidity data to the processor;
所述处理器用于将所述泄漏电流信号、空气湿度数据与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子污秽度；所述处理器还用于判断所述取样悬式绝缘子污秽度是否超过预设的污秽度报警值，如果超过，则报警，如果未超过，则不报警。The processor is used to compare the leakage current signal and air humidity data with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator; the processor is also used to judge the pollution degree of the sampled suspension insulator Whether it exceeds the preset pollution degree alarm value, if it exceeds, it will alarm, if it does not exceed, it will not alarm.
优选的，所述取能分压器包括依次串联的第一电容、第二电容、第三电容；Preferably, the energy harvesting voltage divider includes a first capacitor, a second capacitor, and a third capacitor sequentially connected in series;
所述第一输出端的一端与所述第一电容和所述第二电容之间的连接线路连接；所述第二输出端的一端与所述第二电容所述第三电容之间的连接线路连接。One end of the first output end is connected to the connecting line between the first capacitor and the second capacitor; one end of the second output end is connected to the connecting line between the second capacitor and the third capacitor .
优选的，所述第一输出端的电压按照如下公式进行计算，Preferably, the voltage at the first output terminal is calculated according to the following formula,
其中，U为所述第一输出端的电压，Urph为输电线路的额定相电压，n为所述取样悬式绝缘子污秽度监测系统安装位置处所述悬式绝缘子串的绝缘子片数。Wherein, U is the voltage of the first output terminal, Urph is the rated phase voltage of the transmission line, and n is the number of insulators in the suspension insulator string at the installation position of the sampling suspension insulator pollution degree monitoring system.
优选的，所述第一电容、第二电容、第三电容的值满足如下公式，Preferably, the values of the first capacitor, the second capacitor, and the third capacitor satisfy the following formula,
C2C3＝n×(C1C2+C1C3+C2C3)C2 C3 ＝n×(C1 C2 +C1 C3 +C2 C3 )
其中，C1为所述第一电容的值，C2为所述第一电容的值，C3为所述第一电容的值。Wherein, C1 is the value of the first capacitor, C2 is the value of the first capacitor, and C3 is the value of the first capacitor.
优选的，所述无感电阻与所述泄漏电流监测模块采用屏蔽电缆线连接。Preferably, the non-inductive resistor is connected to the leakage current monitoring module using a shielded cable.
优选的，无感电阻的取值范围为10-100kΩ。Preferably, the value range of the non-inductive resistance is 10-100kΩ.
优选的，所述第二输出端的电压取值范围为198-242V。Preferably, the voltage range of the second output terminal is 198-242V.
第二方面，本申请提供了一种悬式绝缘子污秽度监测方法，应用于悬式绝缘子污秽度监测系统，所述取样悬式绝缘子污秽度监测系统包括：取能分压器、无感电阻、泄漏电流监测模块、湿度采集模块、处理器、取样悬式绝缘子；In the second aspect, the present application provides a method for monitoring the pollution degree of suspension insulators, which is applied to the pollution degree monitoring system of suspension insulators. The sampling suspension insulator pollution degree monitoring system includes: energy-taking voltage divider, non-inductive resistor, Leakage current monitoring module, humidity acquisition module, processor, sampling suspension insulator;
所述取能分压器一端与电力系统中的输电导线连接，另一端与电力杆塔的横担连接；One end of the energy-taking voltage divider is connected to the transmission wire in the power system, and the other end is connected to the crossarm of the power tower;
所述取能分压器的第一输出端与所述取样悬式绝缘子通过隔离开关连接；The first output terminal of the energy harvesting voltage divider is connected to the sampling suspension insulator through an isolation switch;
所述取能分压器的第二输出端分别与所述泄漏电流监测模块和所述湿度采集模块连接，用于分别给所述泄漏电流监测模块和所述湿度采集模块供电；The second output end of the energy harvesting voltage divider is respectively connected to the leakage current monitoring module and the humidity collection module, and is used to supply power to the leakage current monitoring module and the humidity collection module respectively;
所述取样悬式绝缘子一端与所述第一输出端连接，另一端与所述无感电阻连接；One end of the sampling suspension insulator is connected to the first output end, and the other end is connected to the non-inductive resistor;
所述无感电阻一端与所述取样悬式绝缘子连接，另一端与所述横担连接；One end of the non-inductive resistor is connected to the sampling suspension insulator, and the other end is connected to the cross arm;
所述湿度采集模块与所述泄漏电流监测模块连接，将采集到的湿度数据传输给所述泄漏电流监测模块；The humidity collection module is connected to the leakage current monitoring module, and transmits the collected humidity data to the leakage current monitoring module;
所述泄漏电流监测模块包括依次连接的电压采集单元、转换单元、通讯单元；所述电压采集单元采集所述无感电阻两端的电压信号；所述转换单元将所述电压信号转换成泄漏电流信号；所述通讯单元将所述泄漏电流信号和所述湿度数据传输给所述处理器；The leakage current monitoring module includes a voltage acquisition unit, a conversion unit, and a communication unit connected in sequence; the voltage acquisition unit acquires the voltage signal at both ends of the non-inductive resistance; the conversion unit converts the voltage signal into a leakage current signal ; The communication unit transmits the leakage current signal and the humidity data to the processor;
所述处理器用于将所述泄漏电流信号、空气湿度数据与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子污秽度；所述处理器还用于判断所述取样悬式绝缘子污秽度是否超过预设的污秽度报警值，如果超过，则报警，如果未超过，则不报警；The processor is used to compare the leakage current signal and air humidity data with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator; the processor is also used to judge the pollution degree of the sampled suspension insulator Whether it exceeds the preset pollution degree alarm value, if it exceeds, it will alarm, if it does not exceed, it will not alarm;
所述方法包括：The methods include:
采集空气湿度数据并传输给所述泄漏电流监测模块；Collect air humidity data and transmit to the leakage current monitoring module;
采集无感电阻两端的电压信号，并将所述无感电阻两端的电压信号转换成泄漏电流信号；collecting the voltage signal across the non-inductive resistance, and converting the voltage signal across the non-inductive resistance into a leakage current signal;
将所述泄漏电流信号、空气湿度数据与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子污秽度。The leakage current signal and air humidity data are compared with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator.
优选的，所述方法还包括：获取取样悬式绝缘子的历史数据，通过处理器建立所述取样悬式绝缘子污秽度判断曲线。Preferably, the method further includes: acquiring historical data of the sampled suspension insulator, and establishing a pollution degree judgment curve of the sampled suspension insulator through a processor.
优选的，所述方法还包括：判断所述取样悬式绝缘子污秽度是否超过预设的污秽度报警值，如果超过，则报警，如果未超过，则不报警。Preferably, the method further includes: judging whether the pollution degree of the sampling suspension insulator exceeds a preset pollution degree alarm value, if it exceeds, an alarm is given, and if not, no alarm is given.
由以上技术方案可知，本申请提供的悬式绝缘子污秽度监测系统及方法中，所述取能分压器的第一输出端与所述取样悬式绝缘子通过隔离开关连接，所述取能分压器的第二输出端分别与所述泄漏电流监测模块和所述湿度采集模块连接，所述无感电阻与所述取样悬式绝缘子连接，所述湿度采集模块与所述泄漏电流监测模块连接。所述处理器将所述泄漏电流信号和湿度数据与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子的污秽度；然后将取样悬式绝缘子的污秽度与预设的污秽度报警值比较，如果取样悬式绝缘子的污秽度大于所述预设的污秽度报警值则报警，反之则不报警。取样悬式绝缘子表面的污秽度近似等于安装处悬式绝缘子串的污秽度，因此实现了对取样悬式绝缘子表面的污秽度的实时监测以及报警，能减少人为的参与，操作简单、耗时短、效率高，并且是带电监测，减少因停电带来的影响。It can be seen from the above technical solutions that in the suspension insulator pollution degree monitoring system and method provided by the present application, the first output terminal of the energy harvesting voltage divider is connected to the sampling suspension insulator through an isolation switch, and the energy harvesting divider The second output end of the transformer is respectively connected with the leakage current monitoring module and the humidity collection module, the non-inductive resistor is connected with the sampling suspension insulator, and the humidity collection module is connected with the leakage current monitoring module . The processor compares the leakage current signal and humidity data with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator; then compares the pollution degree of the sampled suspension insulator with the preset pollution degree alarm value In comparison, if the pollution degree of the sampled suspension insulator is greater than the preset pollution degree alarm value, an alarm is given, otherwise, no alarm is given. The pollution degree of the surface of the sampling suspension insulator is approximately equal to the pollution degree of the suspension insulator string at the installation place, so the real-time monitoring and alarm of the pollution degree of the sampling suspension insulator surface can be realized, which can reduce human participation, simple operation and short time consumption , High efficiency, and live monitoring, reducing the impact caused by power outages.
附图说明Description of drawings
为了更清楚地说明本申请的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the technical solution of the present application more clearly, the accompanying drawings that need to be used in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, on the premise of not paying creative work, Additional drawings can also be derived from these drawings.
图1为本发明提供的悬式绝缘子污秽度监测系统的结构示意图；Fig. 1 is the structural representation of suspension insulator pollution degree monitoring system provided by the present invention;
图2为本发明提供的取能分压器安装示意图；Fig. 2 is the schematic diagram of installation of the energy-taking voltage divider provided by the present invention;
图3为本发明提供的隔离开关安装示意图；Fig. 3 is the schematic diagram of installation of the isolating switch provided by the present invention;
图4为本发明提供的无感电阻与取样悬式绝缘子的安装示意图；Fig. 4 is the installation schematic diagram of non-inductive resistance and sampling suspension insulator provided by the present invention;
图5为发明提供的悬式绝缘子污秽度监测方法的流程示意图。Fig. 5 is a schematic flow chart of the method for monitoring the pollution degree of suspension insulators provided by the invention.
图示说明：Graphical description:
其中，1-杆塔；2-输电导线；3-横担；4-第一电容器；5-第二电容器；6-第三电容器；7-隔离开关；8-取样悬式绝缘子；9-无感电阻；10-泄漏电流监测模块；11-处理器；12-湿度仪；21-承力绝缘杆；22-绝缘筒；23-连接导体板；24-隔离开关动触头；25-隔离开关静触头；26-隔离开关绝缘操作杆。Among them, 1-pole tower; 2-transmission wire; 3-cross arm; 4-first capacitor; 5-second capacitor; 6-third capacitor; 7-isolating switch; 8-sampling suspension insulator; Resistance; 10-leakage current monitoring module; 11-processor; 12-humidity meter; 21-load-bearing insulating rod; 22-insulating cylinder; 23-connecting conductor plate; Contact; 26-isolating switch insulation operating rod.
具体实施方式Detailed ways
下面结合本申请中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是本申请还可以采用其他不同于再次描述的其他方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似推广，因此本申请不受下面公开的具体实施例的限制。In the following description, a lot of specific details are set forth in order to fully understand the application, but the application can also be implemented in other ways that are different from the description again, and those skilled in the art can do similar without violating the connotation of the application Generalization, therefore, this application is not limited by the specific examples disclosed below.
第一方面，参见图1，为本发明提供的悬式绝缘子污秽度监测系统的结构示意图。本申请提供的悬式绝缘子污秽度监测系统包括取能分压器、无感电阻9、泄漏电流监测模块10、湿度采集模块12、处理器11、取样悬式绝缘子8；In the first aspect, refer to FIG. 1 , which is a schematic structural diagram of a suspension insulator pollution degree monitoring system provided by the present invention. The suspension insulator pollution degree monitoring system provided by this application includes an energy-taking voltage divider, a non-inductive resistor 9, a leakage current monitoring module 10, a humidity collection module 12, a processor 11, and a sampling suspension insulator 8;
所述取能分压器一端与电力系统中的输电导线2连接，另一端与电力杆塔1的横担3连接；One end of the energy-taking voltage divider is connected to the transmission wire 2 in the power system, and the other end is connected to the crossarm 3 of the power pole 1;
所述取能分压器的第一输出端与所述取样悬式绝缘子8通过隔离开关7连接；The first output end of the energy-taking voltage divider is connected to the sampling suspension insulator 8 through an isolation switch 7;
所述取能分压器的第二输出端分别与所述泄漏电流监测模块10和所述湿度采集模块12连接，用于分别给所述泄漏电流监测模块10和所述湿度采集模块12供电；The second output end of the energy-taking voltage divider is respectively connected to the leakage current monitoring module 10 and the humidity collection module 12, and is used to supply power to the leakage current monitoring module 10 and the humidity collection module 12 respectively;
所述取样悬式绝缘子8一端与所述第一输出端连接，另一端与所述无感电阻9连接；One end of the sampling suspension insulator 8 is connected to the first output end, and the other end is connected to the non-inductive resistor 9;
所述无感电阻9一端与所述取样悬式绝缘子8连接，另一端与所述横担3连接；One end of the non-inductive resistor 9 is connected to the sampling suspension insulator 8, and the other end is connected to the cross arm 3;
所述湿度采集模块12与所述泄漏电流监测模块10连接，将采集到的湿度数据传输给所述泄漏电流监测模块10；The humidity collection module 12 is connected to the leakage current monitoring module 10, and transmits the collected humidity data to the leakage current monitoring module 10;
所述泄漏电流监测模块10包括依次连接的电压采集单元、转换单元、通讯单元；所述电压采集单元采集所述无感电阻9两端的电压信号；所述转换单元将所述电压信号转换成泄漏电流信号；所述通讯单元将所述泄漏电流信号和所述湿度数据传输给所述处理器11；The leakage current monitoring module 10 includes a voltage acquisition unit, a conversion unit, and a communication unit connected in sequence; the voltage acquisition unit collects the voltage signal at both ends of the non-inductive resistor 9; the conversion unit converts the voltage signal into a leakage current current signal; the communication unit transmits the leakage current signal and the humidity data to the processor 11;
所述处理器11用于将所述泄漏电流信号、空气湿度数据与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子8的污秽度；所述处理器11还用于判断所述取样悬式绝缘子污秽度是否超过预设的污秽度报警值，如果超过，则报警，如果未超过，则不报警。The processor 11 is used to compare the leakage current signal and air humidity data with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator 8; the processor 11 is also used to judge the sampled Whether the pollution degree of the suspension insulator exceeds the preset pollution degree alarm value, if it exceeds, it will alarm, if not, it will not alarm.
参见图2，为本发明提供的取能分压器安装示意图。本发明实施例提供的取能分压器包括第一电容4、第二电容5、第三电容6、承力绝缘杆21、绝缘筒22、连接导体板23。第一电容4、第二电容5、第三电容6封装于绝缘筒22中，上下两端由连接导体板23引出，并通过连接导体板23并联于承力绝缘杆21的两端，承力绝缘杆21的上端通过连接导体板23与杆塔1的横担3相连，下端通过连接导体板23与第一电容4的上端相连。Referring to Fig. 2, it is a schematic diagram of the installation of the energy harvesting voltage divider provided by the present invention. The energy harvesting voltage divider provided by the embodiment of the present invention includes a first capacitor 4 , a second capacitor 5 , a third capacitor 6 , a load-bearing insulating rod 21 , an insulating cylinder 22 , and a connecting conductor plate 23 . The first capacitor 4, the second capacitor 5, and the third capacitor 6 are packaged in the insulating cylinder 22, and the upper and lower ends are drawn out by the connecting conductor plate 23, and are connected in parallel to the two ends of the load-bearing insulating rod 21 through the connecting conductor plate 23, bearing the force The upper end of the insulating rod 21 is connected with the cross arm 3 of the tower 1 through the connecting conductor plate 23 , and the lower end is connected with the upper end of the first capacitor 4 through the connecting conductor plate 23 .
参见图3所示，为本发明提供的隔离开关7基本结构示意图。包括承力绝缘杆21，隔离开关动触头24，隔离开关静触头25，隔离开关绝缘操作杆26。隔离开关7整体悬挂于杆塔1的横担3下方，工作时可以站立在横担3上对其进行操作。正常情况下，隔离开关7处于闭合状态，当需要在绝缘子上进行人工取样或更换绝缘子时，将隔离开关7打开，隔离高电位。Referring to FIG. 3 , it is a schematic diagram of the basic structure of the isolating switch 7 provided by the present invention. It includes a load-bearing insulating rod 21 , a moving contact 24 of a disconnector, a static contact 25 of a disconnector, and an insulating operating rod 26 of a disconnector. The isolating switch 7 is integrally suspended below the cross arm 3 of the pole tower 1, and can be operated while standing on the cross arm 3 during work. Under normal circumstances, the isolating switch 7 is in a closed state. When it is necessary to perform manual sampling on the insulator or replace the insulator, the isolating switch 7 is opened to isolate the high potential.
参见图4，为本发明提供的无感电阻9与取样悬式绝缘子8的安装示意图。包括取样悬式绝缘子8、无感电阻9和承力绝缘杆21、连接导体板23，无感电阻9通过连接导体板23并联于承力绝缘杆21的两端，承力绝缘杆21的上端通过连接导体板23与杆塔1的横担3相连、下端通过连接导体板23与取样悬式绝缘子8的上端相连。Referring to FIG. 4 , it is a schematic diagram of the installation of the non-inductive resistor 9 and the sampling suspension insulator 8 provided by the present invention. It includes a sampling suspension insulator 8, a non-inductive resistor 9, a load-bearing insulating rod 21, and a connecting conductor plate 23. The non-inductive resistor 9 is connected in parallel to both ends of the load-bearing insulating rod 21 through the connecting conductor plate 23, and the upper end of the load-bearing insulating rod 21 The connecting conductor plate 23 is connected with the cross arm 3 of the pole tower 1 , and the lower end is connected with the upper end of the sampling suspension insulator 8 through the connecting conductor plate 23 .
由以上技术方案可知，本申请提供的悬式绝缘子污秽度监测系统，所述取能分压器的第一输出端与所述取样悬式绝缘子8通过隔离开关7连接，所述取能分压器的第二输出端分别与所述泄漏电流监测模块10和所述湿度采集模块12连接，所述无感电阻9与所述取样悬式绝缘子8连接，所述湿度采集模块12与所述泄漏电流监测模块10连接。所述处理器11将所述泄漏电流信号和空气湿度数据与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子8的污秽度；然后将取样悬式绝缘子8的污秽度与预设的污秽度报警值比较，如果取样悬式绝缘子8的污秽度大于所述预设的污秽度报警值则报警，反之则不报警。取样悬式绝缘子表面的污秽度近似等于安装处悬式绝缘子串的污秽度。It can be seen from the above technical solutions that in the suspension insulator pollution degree monitoring system provided by the present application, the first output end of the energy harvesting voltage divider is connected to the sampling suspension insulator 8 through the isolation switch 7, and the energy harvesting voltage divider The second output end of the device is respectively connected with the leakage current monitoring module 10 and the humidity collection module 12, the non-inductive resistor 9 is connected with the sampling suspension insulator 8, and the humidity collection module 12 is connected with the leakage The current monitoring module 10 is connected. The processor 11 compares the leakage current signal and the air humidity data with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator 8; then compares the pollution degree of the sampled suspension insulator 8 with the preset Comparing the pollution degree alarm value, if the pollution degree of the sampling suspension insulator 8 is greater than the preset pollution degree alarm value, an alarm will be given, otherwise, no alarm will be given. The pollution degree of the sampled suspension insulator surface is approximately equal to the pollution degree of the suspension insulator string at the installation place.
通过从电力杆塔1上取能，然后施加于绝缘子两端，并给泄漏电流监测模块10和温度采集模块12供电。利用泄漏电流监测模块10采集无感电阻9上的电压，然后转换成泄漏电流信号，并通过无线网络发送给处理器11；处理器11同时接收到泄漏电流监测模块10传送过来的泄漏电流信号和空气湿度数据，与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子8的污秽度。Energy is taken from the power pole 1 and then applied to both ends of the insulator to supply power to the leakage current monitoring module 10 and the temperature acquisition module 12 . Utilize the leakage current monitoring module 10 to collect the voltage on the non-inductive resistor 9, then convert it into a leakage current signal, and send it to the processor 11 through the wireless network; the processor 11 simultaneously receives the leakage current signal and the leakage current signal transmitted by the leakage current monitoring module 10 The air humidity data is compared with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator 8 .
本申请提供的悬式绝缘子污秽度监测系统实现了对取样悬式绝缘子8表面的污秽度进行实时监测以及报警，取样悬式绝缘子8表面的污秽度近似等于安装处悬式绝缘子串的污秽度，能减少人为的参与，操作简单、耗时短、效率高，并且是带电监测，减少因停电带来的影响。The suspension insulator pollution degree monitoring system provided by this application realizes the real-time monitoring and alarm of the pollution degree of the sampling suspension insulator 8 surface, the pollution degree of the sampling suspension insulator 8 surface is approximately equal to the pollution degree of the suspension insulator string at the installation place, It can reduce human participation, simple operation, short time consumption, high efficiency, and it is live monitoring to reduce the impact caused by power failure.
可选地，所述取能分压器包括依次串联的第一电容4、第二电容5、第三电容6；Optionally, the energy-taking voltage divider includes a first capacitor 4, a second capacitor 5, and a third capacitor 6 connected in series in sequence;
所述第一输出端的一端与所述第一电容4和所述第二电容5之间的连接线路连接；所述第二输出端的一端与所述第二电容5所述第三电容6之间的连接线路连接。One end of the first output end is connected to the connection line between the first capacitor 4 and the second capacitor 5; one end of the second output end is connected to the second capacitor 5 and the third capacitor 6 connection line connection.
可选地，所述第一输出端的电压按照如下公式进行计算，Optionally, the voltage at the first output terminal is calculated according to the following formula,
其中，U为所述第一输出端的电压，Urph为输电线路的额定相电压，n为所述取样悬式绝缘子污秽度监测系统安装位置处所述悬式绝缘子串的绝缘子片数。Wherein, U is the voltage of the first output terminal, Urph is the rated phase voltage of the transmission line, and n is the number of insulators in the suspension insulator string at the installation position of the sampling suspension insulator pollution degree monitoring system.
可选地，所述第一电容4、第二电容5、第三电容6的值满足如下公式，Optionally, the values of the first capacitor 4, the second capacitor 5, and the third capacitor 6 satisfy the following formula,
C2C3＝n×(C1C2+C1C3+C2C3)C2 C3 ＝n×(C1 C2 +C1 C3 +C2 C3 )
其中，C1为所述第一电容4的值，C2为所述第一电容4的值，C3为所述第一电容4的值。Wherein, C1 is the value of the first capacitor 4 , C2 is the value of the first capacitor 4 , and C3 is the value of the first capacitor 4 .
可选地，所述无感电阻9与所述泄漏电流监测模块10采用屏蔽电缆线连接。使用无感电阻9可以解决在强电磁干扰下，电阻两端的电压无法测准的问题，同时采用屏蔽电缆线连接无感电阻9与所述泄漏电流监测模块10，可以降低电压信号在传输过程中的电磁干扰。Optionally, the non-inductive resistor 9 is connected to the leakage current monitoring module 10 using a shielded cable. Using the non-inductive resistor 9 can solve the problem that the voltage at both ends of the resistor cannot be measured accurately under strong electromagnetic interference, and at the same time use a shielded cable to connect the non-inductive resistor 9 and the leakage current monitoring module 10, which can reduce the voltage signal during transmission electromagnetic interference.
可选地，无感电阻9的取值范围为10-100kΩ。Optionally, the value range of the non-inductive resistor 9 is 10-100kΩ.
可选地，所述第二输出端的电压取值范围为198-242V。Optionally, the voltage range of the second output terminal is 198-242V.
第二方面，参见图5所示，为发明提供的悬式绝缘子污秽度监测方法的流程示意图。本申请提供了一种悬式绝缘子污秽度监测方法，应用于取样悬式绝缘子污秽度监测系统，所述取样悬式绝缘子污秽度监测系统包括：取能分压器、无感电阻9、泄漏电流监测模块10、湿度采集模块12、处理器11、取样悬式绝缘子8；In the second aspect, see FIG. 5 , which is a schematic flow chart of the method for monitoring the pollution degree of suspension insulators provided by the invention. This application provides a method for monitoring the pollution degree of suspended insulators, which is applied to the pollution degree monitoring system of sampling suspended insulators. Monitoring module 10, humidity acquisition module 12, processor 11, sampling suspension insulator 8;
所述取能分压器一端与电力系统中的输电导线2连接，另一端与电力杆塔1的横担3连接；One end of the energy-taking voltage divider is connected to the transmission wire 2 in the power system, and the other end is connected to the crossarm 3 of the power pole 1;
所述取能分压器的第一输出端与所述取样悬式绝缘子8通过隔离开关7连接；The first output end of the energy-taking voltage divider is connected to the sampling suspension insulator 8 through an isolation switch 7;
所述取能分压器的第二输出端分别与所述泄漏电流监测模块10和所述湿度采集模块12连接，用于分别给所述泄漏电流监测模块10和所述湿度采集模块12供电；The second output end of the energy-taking voltage divider is respectively connected to the leakage current monitoring module 10 and the humidity collection module 12, and is used to supply power to the leakage current monitoring module 10 and the humidity collection module 12 respectively;
所述取样悬式绝缘子8一端与所述第一输出端连接，另一端与所述无感电阻9连接；One end of the sampling suspension insulator 8 is connected to the first output end, and the other end is connected to the non-inductive resistor 9;
所述无感电阻9一端与所述取样悬式绝缘子8连接，另一端与所述横担3连接；One end of the non-inductive resistor 9 is connected to the sampling suspension insulator 8, and the other end is connected to the cross arm 3;
所述湿度采集模块12与所述泄漏电流监测模块10连接，将采集到的湿度数据传输给所述泄漏电流监测模块10；The humidity collection module 12 is connected to the leakage current monitoring module 10, and transmits the collected humidity data to the leakage current monitoring module 10;
所述泄漏电流监测模块10包括依次连接的电压采集单元、转换单元、通讯单元；所述电压采集单元采集所述无感电阻9两端的电压信号；所述转换单元将所述电压信号转换成泄漏电流信号；所述通讯单元将所述泄漏电流信号和所述湿度数据传输给所述处理器11；The leakage current monitoring module 10 includes a voltage acquisition unit, a conversion unit, and a communication unit connected in sequence; the voltage acquisition unit collects the voltage signal at both ends of the non-inductive resistor 9; the conversion unit converts the voltage signal into a leakage current current signal; the communication unit transmits the leakage current signal and the humidity data to the processor 11;
所述处理器11用于将所述泄漏电流信号、空气湿度数据与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子8污秽度；所述处理器11还用于判断所述现场取样悬式绝缘子污秽度是否超过预设的污秽度报警值，如果超过，则报警，如果未超过，则不报警；The processor 11 is used to compare the leakage current signal and air humidity data with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampling suspension insulator 8; the processor 11 is also used to judge the on-site sampling Whether the pollution degree of the suspension insulator exceeds the preset pollution degree alarm value, if it exceeds, it will alarm, if it does not exceed, it will not alarm;
所述方法包括：The methods include:
步骤S1、获取取样悬式绝缘子的历史数据，通过处理器建立所述取样悬式绝缘子的污秽度判断曲线；Step S1. Obtain historical data of the sampled suspension insulator, and establish a pollution degree judgment curve of the sampled suspension insulator through the processor;
步骤S2、采集空气湿度数据并传输给所述泄漏电流监测模块；Step S2, collecting air humidity data and transmitting it to the leakage current monitoring module;
步骤S3、采集无感电阻两端的电压信号，并将所述无感电阻两端的电压信号转换成泄漏电流信号；Step S3, collecting the voltage signal at both ends of the non-inductive resistor, and converting the voltage signal at both ends of the non-inductive resistor into a leakage current signal;
步骤S4、将所述泄漏电流信号、空气湿度数据与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子污秽度。Step S4. Comparing the leakage current signal and air humidity data with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator.
步骤S5、判断所述取样悬式绝缘子污秽度是否超过预设的污秽度报警值，如果超过，则报警，如果未超过，则不报警。Step S5, judging whether the pollution degree of the sampling suspension insulator exceeds the preset pollution degree alarm value, if it exceeds, an alarm is given, and if not, no alarm is given.
由以上技术方案可知，本申请提供的悬式绝缘子污秽度监测系统及方法，所述取能分压器的第一输出端与所述取样悬式绝缘子8通过隔离开关7连接，所述取能分压器的第二输出端分别与所述泄漏电流监测模块10和所述湿度采集模块12连接，所述无感电阻9与所述取样悬式绝缘子8连接，所述湿度采集模块12与所述泄漏电流监测模块10连接。所述处理器11将所述泄漏电流信号和湿度数据与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子8的污秽度；然后将取样悬式绝缘子8的污秽度与预设的污秽度报警值比较，如果取样悬式绝缘子8的污秽度大于所述预设的污秽度报警值则报警，反之则不报警，所述取样悬式绝缘子8表面的污秽度即为安装处悬式绝缘子串的污秽度。It can be seen from the above technical solutions that in the suspension insulator pollution monitoring system and method provided by the present application, the first output end of the energy harvesting voltage divider is connected to the sampling suspension insulator 8 through the isolation switch 7, and the energy harvesting The second output terminal of the voltage divider is respectively connected with the leakage current monitoring module 10 and the humidity collection module 12, the non-inductive resistor 9 is connected with the sampling suspension insulator 8, and the humidity collection module 12 is connected with the humidity collection module 12. The above leakage current monitoring module 10 is connected. The processor 11 compares the leakage current signal and humidity data with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator 8; then compares the pollution degree of the sampled suspension insulator 8 with the preset pollution degree If the pollution degree of the sampling suspension insulator 8 is greater than the preset pollution degree alarm value, an alarm will be given, otherwise, no alarm will be given. The pollution degree of the surface of the sampling suspension insulator 8 is the suspension insulator at the installation site. The filthiness of the string.
通过从电力杆塔1上取能，然后施加于绝缘子两端，并给泄漏电流监测模块10和湿度采集模块12供电。利用泄漏电流监测模块10采集无感电阻9上的电压，然后转换成泄漏电流信号，并通过无线网络发送给处理器11；处理器11同时接收到泄漏电流监测模块10传送过来的泄漏电流信号和空气湿度数据，与预先建立的污秽度判断曲线进行比较，得到取样悬式绝缘子8的污秽度。Energy is taken from the power pole 1 and then applied to both ends of the insulator to supply power to the leakage current monitoring module 10 and the humidity collection module 12 . Utilize the leakage current monitoring module 10 to collect the voltage on the non-inductive resistor 9, then convert it into a leakage current signal, and send it to the processor 11 through the wireless network; the processor 11 simultaneously receives the leakage current signal and the leakage current signal transmitted by the leakage current monitoring module 10 The air humidity data is compared with the pre-established pollution degree judgment curve to obtain the pollution degree of the sampled suspension insulator 8 .
本申请提供的悬式绝缘子污秽度监测系统实现了对取样悬式绝缘子8表面的污秽度进行实时监测以及报警，能减少人为的参与，操作简单、耗时短、效率高，并且是带电监测，减少因停电带来的影响。The suspension insulator pollution degree monitoring system provided by this application realizes real-time monitoring and alarming of the pollution degree of the sampling suspension insulator 8 surface, can reduce human participation, is simple to operate, takes short time, and has high efficiency, and it is live monitoring, Reduce the impact of power outages.
以上仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。The above are only specific implementation methods of the present application. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications can also be made without departing from the principle of the application, and these improvements and modifications should also be considered as For the scope of protection of this application.
| Application Number | Priority Date | Filing Date | Title |
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| CN201810483327.7ACN108680604A (en) | 2018-05-18 | 2018-05-18 | A kind of suspension insulator pollution degree monitoring system and method |
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| CN201810483327.7ACN108680604A (en) | 2018-05-18 | 2018-05-18 | A kind of suspension insulator pollution degree monitoring system and method |
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| CN108680604Atrue CN108680604A (en) | 2018-10-19 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201810483327.7APendingCN108680604A (en) | 2018-05-18 | 2018-05-18 | A kind of suspension insulator pollution degree monitoring system and method |
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| CN110703136A (en)* | 2019-10-21 | 2020-01-17 | 重庆理工大学 | A device and method for electrified detection of leakage current of transmission line insulators |
| CN112179953A (en)* | 2020-09-26 | 2021-01-05 | 国网山东省电力公司电力科学研究院 | Multi-mode online monitoring device and method for insulator dirt accumulation amount |
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| CN112834885A (en)* | 2021-01-07 | 2021-05-25 | 国家电网有限公司 | Evaluation of Power Supply Line Insulation Condition Based on Identification of the Relationship between Power Supply Line Leakage Current and Humidity |
| CN113083791A (en)* | 2019-12-23 | 2021-07-09 | 中车大连电力牵引研发中心有限公司 | Insulator cleaning device and cleaning method |
| CN114076877A (en)* | 2021-11-19 | 2022-02-22 | 国网辽宁省电力有限公司鞍山供电公司 | High-voltage insulation state analysis method and device based on electromagnetic field big data |
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| JP2001074803A (en)* | 1999-09-07 | 2001-03-23 | Showa Electric Wire & Cable Co Ltd | Diagnosis method of water tree deterioration |
| CN101256892A (en)* | 2007-12-29 | 2008-09-03 | 武汉格蓝若光电互感器有限公司 | Novel high voltage independent type electronic voltage mutual inductor |
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| CN107091968A (en)* | 2017-04-28 | 2017-08-25 | 新疆天成鲁源电气工程有限公司 | Intelligent insulation and its application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109358271A (en)* | 2018-11-05 | 2019-02-19 | 中科伟博(苏州)智能科技有限公司 | A kind of insulator deterioration and filthy detection method based on MEMS optical fiber micro-current sensing technology |
| CN109696596A (en)* | 2019-01-28 | 2019-04-30 | 西安工程大学 | A kind of wet dirty remote supervision system of insulator |
| CN110703136A (en)* | 2019-10-21 | 2020-01-17 | 重庆理工大学 | A device and method for electrified detection of leakage current of transmission line insulators |
| CN113083791A (en)* | 2019-12-23 | 2021-07-09 | 中车大连电力牵引研发中心有限公司 | Insulator cleaning device and cleaning method |
| CN112179953A (en)* | 2020-09-26 | 2021-01-05 | 国网山东省电力公司电力科学研究院 | Multi-mode online monitoring device and method for insulator dirt accumulation amount |
| CN112505415A (en)* | 2020-11-17 | 2021-03-16 | 国网湖北省电力有限公司电力科学研究院 | Porcelain insulator resistance measuring device and method |
| CN112834885A (en)* | 2021-01-07 | 2021-05-25 | 国家电网有限公司 | Evaluation of Power Supply Line Insulation Condition Based on Identification of the Relationship between Power Supply Line Leakage Current and Humidity |
| CN114076877A (en)* | 2021-11-19 | 2022-02-22 | 国网辽宁省电力有限公司鞍山供电公司 | High-voltage insulation state analysis method and device based on electromagnetic field big data |
| CN114076877B (en)* | 2021-11-19 | 2023-12-19 | 国网辽宁省电力有限公司鞍山供电公司 | High-voltage insulation state analysis method and device based on electromagnetic field big data |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20181019 |