CN113655350A - GIS partial discharge online monitoring system and method - Google Patents
GIS partial discharge online monitoring system and method Download PDFInfo
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- CN113655350A CN113655350A CN202110973285.7A CN202110973285A CN113655350A CN 113655350 A CN113655350 A CN 113655350A CN 202110973285 A CN202110973285 A CN 202110973285A CN 113655350 A CN113655350 A CN 113655350A
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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Abstract
The invention discloses a GIS partial discharge on-line monitoring system and a method, wherein the system comprises: the system comprises an ultrasonic wave partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor, a data acquisition unit, an intelligent control cabinet IED and a background industrial personal computer; the ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor sends detected ultrasonic partial discharge signals, ultrahigh frequency partial discharge signals and vibration signals to the data acquisition unit; the data acquisition unit acquires the signals and sends the signals to the intelligent control cabinet IED for data processing and signal conversion; the intelligent control cabinet IED is in communication connection with the background industrial personal computer and is used for transmitting data after data processing and signal conversion to the background industrial personal computer; the background industrial personal computer monitors the received data in real time, forms a chart, analyzes and pre-judges equipment risks, realizes multi-state comprehensive acquisition of the GIS running state, and greatly improves the reliability and effectiveness of monitoring the GIS switch running state.
Description
Technical Field
The invention relates to the technical field of GIS partial discharge monitoring, in particular to a GIS partial discharge online monitoring system and method.
Background
GIS (Gas Insulated Switchgear) has the characteristics of small volume and high reliability, and is widely used in power grids in recent years. Because reasons such as installation, operation can produce all kinds of defects, for example metal arch, along face filth etc. GIS can produce partial discharge at the operation in-process, and partial discharge can cause the loss of electric energy to can make insulating material age with higher speed, develop to a certain extent and can lead to insulating inefficacy, seriously threaten the safe operation of equipment, consequently, partial discharge's early detection is very important to the maintenance of GIS equipment, maintain.
The partial discharge and the mechanical fault generated by the GIS are influenced on the GIS running state, wherein the operation mechanisms such as a circuit breaker and the like account for 35.4% of the mechanical fault, and the mechanical fault is one of the main factors influencing the GIS running reliability. The main method for researching the mechanical fault is mainly based on a vibration method, and the difference of vibration signals before and after the fault is found through a series of technical means, so that the purpose of fault diagnosis is achieved; however, many studies have been made in the prior art for detecting partial discharge, and the main detection methods are the ultrahigh frequency method and the ultrasonic method.
At present, the traditional monitoring principle is single, and the monitoring of going can't be synthesized to the GIS running state, realizes the effective collection to the GIS state, so, how to realize that the multistate of GIS running state is synthesized and is gathered and carry out real-time on-line monitoring is the technical problem that technical staff in the field need to solve at present.
Disclosure of Invention
The invention aims to provide a GIS partial discharge online monitoring system and a GIS partial discharge online monitoring method, and aims to solve the problems.
The invention provides a GIS partial discharge on-line monitoring system, comprising: the system comprises an ultrasonic wave partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor, a data acquisition unit, an intelligent control cabinet IED and a background industrial personal computer;
the ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor is used for sending detected ultrasonic partial discharge signals, ultrahigh frequency partial discharge signals and vibration signals to the data acquisition unit;
the data acquisition unit is connected with the ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor and is used for acquiring the ultrasonic partial discharge signal, the ultrahigh frequency partial discharge signal and the vibration signal and sending the signals to the intelligent control cabinet IED for data processing and signal conversion;
the intelligent control cabinet IED is in communication connection with the background industrial personal computer through an optical cable and is used for transmitting data after data processing and signal conversion to the background industrial personal computer;
the background industrial personal computer is used for monitoring the received data in real time, forming a chart and analyzing the risk of the pre-judging equipment.
The invention provides a GIS partial discharge online monitoring method, which comprises the following steps:
s1, acquiring signal data of the ultrasonic wave partial discharge, the ultrahigh frequency partial discharge and the vibration three-in-one sensor through a data acquisition unit and sending the signal data to an intelligent control cabinet IED;
and S2, the intelligent control cabinet IED performs data processing on the received signal data, converts the signal data into digital signal data, and sends the digital signal data to a background industrial personal computer for fault analysis and positioning.
By adopting the embodiment of the invention, the multi-state comprehensive acquisition of the GIS running state can be realized, the reliability and effectiveness of the GIS switch running state monitoring are greatly improved, and the direct and indirect property loss caused by the GIS switch fault is avoided; the external three-in-one sensor is adopted, so that the installation is convenient, and the implementation and popularization of a technical improvement scheme are facilitated; the remote real-time online monitoring of the GIS running state is realized, and the workload and the operation and maintenance cost of operation and maintenance personnel are reduced; and the comprehensive monitoring and analysis are adopted for the partial discharge and the vibration, and the comprehensive state monitoring is accurately carried out on the running state of the GIS.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a GIS partial discharge online monitoring system according to an embodiment of the invention;
fig. 2 is a flowchart of a GIS partial discharge online monitoring method according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
System embodiment
According to an embodiment of the present invention, an online GIS partial discharge monitoring system is provided, fig. 1 is a schematic diagram of the online GIS partial discharge monitoring system according to an embodiment of the present invention, as shown in fig. 1, the online GIS partial discharge monitoring system according to an embodiment of the present invention specifically includes: the system comprises an ultrasonic wave partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor 10, a data acquisition unit 12, an intelligent control cabinet IED14 and a background industrial personal computer 16;
the ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor 10 is installed at an insulation basin of a gas insulated switchgear GIS to be monitored by adopting a hoop and is used for sending detected ultrasonic partial discharge signals, ultrahigh frequency partial discharge signals and vibration signals to a data acquisition unit 12;
specifically, an electronic triaxial acceleration sensor is adopted to perform online monitoring on the triaxial vibration acceleration of the GIS to generate a vibration signal.
The data acquisition unit 12 is connected with the ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor 10, and is used for acquiring an ultrasonic partial discharge signal, an ultrahigh frequency partial discharge signal and a vibration signal and sending the signals to the intelligent control cabinet IED14 for data processing and signal conversion;
The intelligent control cabinet IED14 is in communication connection with the background industrial personal computer 16 through an optical cable and is used for transmitting data after data processing and signal conversion to the background industrial personal computer 16;
in the intelligent control cabinet IED14, ultrasonic wave partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensors of all monitoring points form a bus structure through a concentrator, a surge protector (lightning arrester) is arranged, data processing and AD conversion are performed in the intelligent control cabinet IED14, ultrasonic wave partial discharge signals, ultrahigh frequency partial discharge signals and vibration signals are converted into digital signal data, and then the data are uploaded to the background industrial personal computer 16 through a TCP/IP protocol internet port.
The background industrial personal computer 16 is used for monitoring the received data in real time, forming a chart and analyzing the risk of the pre-judging equipment.
Method embodiment
According to an embodiment of the present invention, an online monitoring method for GIS partial discharge is provided, fig. 2 is a flowchart of the online monitoring method for GIS partial discharge according to an embodiment of the present invention, as shown in fig. 2, the online monitoring method for GIS partial discharge according to an embodiment of the present invention specifically includes:
s1, collecting signal data of the ultrasonic wave partial discharge, the ultrahigh frequency partial discharge and the vibration three-in-one sensor through a data collection unit and sending the signal data to an intelligent control cabinet IED.
The method comprises the following steps that firstly, a plurality of GIS monitoring positions are determined, an ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor is installed on the GIS monitoring positions, the selected monitoring positions are positions with higher vibration intensity and higher signal-to-noise ratio when a gas insulated enclosed switchgear GIS is switched on and off, a data acquisition unit acquires ultrasonic partial discharge signals, ultrahigh frequency partial discharge signals and vibration signals sent by the ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor in a multi-channel mode, the acquired data are transmitted to an intelligent control cabinet IED in a lora wireless communication mode, and the maximum wireless communication distance requirement is met while the power consumption is low;
furthermore, the position where partial discharge occurs can be located through ultrasonic waves, and the three-axis vibration acceleration of the GIS is monitored through the electronic three-axis acceleration sensor.
And S2, the intelligent control cabinet IED performs data processing on the received signal data, converts the signal data into digital signal data, and sends the digital signal data to a background industrial personal computer for fault analysis and positioning.
Specifically, the intelligent control cabinet IED receives the ultrasonic partial discharge signal, the ultrahigh frequency partial discharge signal and the vibration signal, converts the signal data into digital signal data, and uploads the data to the background industrial personal computer through a TCP/IP protocol network port.
And the background industrial personal computer monitors the received data in real time, forms a chart and analyzes and pre-judges the risk of the equipment.
By adopting the embodiment of the invention, the multi-state comprehensive acquisition of the GIS running state can be realized, the reliability and effectiveness of the GIS switch running state monitoring are greatly improved, and the direct and indirect property loss caused by the GIS switch fault is avoided; the external three-in-one sensor is adopted, so that the installation is convenient, and the implementation and popularization of a technical improvement scheme are facilitated; the remote real-time online monitoring of the GIS running state is realized, and the workload and the operation and maintenance cost of operation and maintenance personnel are reduced; and the comprehensive monitoring and analysis are adopted for the partial discharge and the vibration, and the comprehensive state monitoring is accurately carried out on the running state of the GIS.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A GIS partial discharge online monitoring system is characterized by comprising an ultrasonic partial discharge sensor, an ultrahigh frequency partial discharge sensor and a vibration three-in-one sensor, a data acquisition unit, an intelligent control cabinet IED and a background industrial personal computer;
the ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor is used for sending detected ultrasonic partial discharge signals, ultrahigh frequency partial discharge signals and vibration signals to the data acquisition unit;
the data acquisition unit is connected with the ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor and is used for acquiring the ultrasonic partial discharge signal, the ultrahigh frequency partial discharge signal and the vibration signal and sending the signals to the intelligent control cabinet IED for data processing and signal conversion;
the intelligent control cabinet IED is in communication connection with the background industrial personal computer through an optical cable and is used for transmitting data after data processing and signal conversion to the background industrial personal computer;
the background industrial personal computer is used for monitoring the received data in real time, forming a chart and analyzing the risk of the pre-judging equipment.
2. The system according to claim 1, characterized in that the intelligent control cabinet IED forms a bus structure with the ultrasonic wave partial discharge, the ultrahigh frequency partial discharge and the vibration three-in-one sensor of all monitoring points through a concentrator, and is provided with a surge protector.
3. The system of claim 1, wherein the ultrasonic partial discharge, ultrahigh frequency partial discharge and vibration three-in-one sensor is installed at an insulation basin of a Gas Insulated Switchgear (GIS) to be monitored by using a hoop.
4. The system of claim 1, wherein the data acquisition unit is mounted on the GIS rack using an outdoor wall-mounted box.
5. The system of claim 1, wherein the data acquisition unit is specifically configured to: and carrying out multichannel partial discharge and vibration signal data source synchronous acquisition, and sending acquired data to the intelligent control cabinet IED in a lora wireless communication mode.
6. A GIS partial discharge online monitoring method is characterized by comprising the following steps:
s1, acquiring signal data of the ultrasonic wave partial discharge, the ultrahigh frequency partial discharge and the vibration three-in-one sensor through a data acquisition unit and sending the signal data to an intelligent control cabinet IED;
and S2, the intelligent control cabinet IED performs data processing on the received signal data, converts the signal data into digital signal data, and sends the digital signal data to a background industrial personal computer for fault analysis and positioning.
7. The method as claimed in claim 6, wherein the ultrasonic partial discharge, the uhf partial discharge and the vibration triple-play sensor of step S1 is installed at a position having a large vibration intensity and a high signal to noise ratio when the gas insulated switchgear GIS performs the opening and closing operation.
8. The method according to claim 6, wherein the signal data of step S1 includes an ultrasonic partial discharge signal, a UHF partial discharge signal and a vibration signal.
9. The method according to claim 6, wherein the method of step S1 specifically includes: and the data acquisition unit transmits acquired data to the intelligent control cabinet IED in a lora wireless communication mode.
10. The method according to claim 9, wherein the method of step S2 specifically includes: and the intelligent control cabinet IED sends the processed digital signal data to a background industrial personal computer through a TCP/IP protocol and forms a chart.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115015708A (en) * | 2022-06-02 | 2022-09-06 | 南京征途信息技术有限公司 | Variable distribution omnidirectional ultrahigh frequency partial discharge sensor and method thereof |
| CN116359682A (en) * | 2023-02-28 | 2023-06-30 | 四川大唐国际甘孜水电开发有限公司 | Partial discharge dynamic monitoring and early warning management method and system |
| CN117192311A (en) * | 2023-11-06 | 2023-12-08 | 国网天津市电力公司电力科学研究院 | Discharge detection device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372645A (en) * | 1999-09-02 | 2002-10-02 | 特兰斯格里德公司 | Partial discharge monitoring system for transformers |
| CN101702002A (en) * | 2009-12-07 | 2010-05-05 | 上海市电力公司 | Local discharge electroacoustic united detection positioning system and positioning method thereof |
| US20100324746A1 (en) * | 2009-06-19 | 2010-12-23 | Hanbit Eds Co., Ltd | Partial discharge counter for diagnosis of gas insulated switchgear |
| CN103197215A (en) * | 2013-04-09 | 2013-07-10 | 国家电网公司 | System and method for discharge fault location of geographic information system (GIS) alternating current (AC) voltage withstand test |
| CN109541413A (en) * | 2018-12-20 | 2019-03-29 | 国网上海市电力公司 | GIS partial discharge superfrequency, ultrasonic wave, light pulse combined detection system and method |
| CN112415343A (en) * | 2020-11-14 | 2021-02-26 | 国网电力科学研究院武汉南瑞有限责任公司 | Intelligent assembly of multi-state-quantity configurable totally-enclosed gas combined electrical appliance |
-
2021
- 2021-08-24 CN CN202110973285.7A patent/CN113655350A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372645A (en) * | 1999-09-02 | 2002-10-02 | 特兰斯格里德公司 | Partial discharge monitoring system for transformers |
| US20100324746A1 (en) * | 2009-06-19 | 2010-12-23 | Hanbit Eds Co., Ltd | Partial discharge counter for diagnosis of gas insulated switchgear |
| CN101702002A (en) * | 2009-12-07 | 2010-05-05 | 上海市电力公司 | Local discharge electroacoustic united detection positioning system and positioning method thereof |
| CN103197215A (en) * | 2013-04-09 | 2013-07-10 | 国家电网公司 | System and method for discharge fault location of geographic information system (GIS) alternating current (AC) voltage withstand test |
| CN109541413A (en) * | 2018-12-20 | 2019-03-29 | 国网上海市电力公司 | GIS partial discharge superfrequency, ultrasonic wave, light pulse combined detection system and method |
| CN112415343A (en) * | 2020-11-14 | 2021-02-26 | 国网电力科学研究院武汉南瑞有限责任公司 | Intelligent assembly of multi-state-quantity configurable totally-enclosed gas combined electrical appliance |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115015708A (en) * | 2022-06-02 | 2022-09-06 | 南京征途信息技术有限公司 | Variable distribution omnidirectional ultrahigh frequency partial discharge sensor and method thereof |
| CN116359682A (en) * | 2023-02-28 | 2023-06-30 | 四川大唐国际甘孜水电开发有限公司 | Partial discharge dynamic monitoring and early warning management method and system |
| CN117192311A (en) * | 2023-11-06 | 2023-12-08 | 国网天津市电力公司电力科学研究院 | Discharge detection device and method |
| CN117192311B (en) * | 2023-11-06 | 2024-05-24 | 国网天津市电力公司电力科学研究院 | Discharge detection device and method |
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