CN212989511U - High-voltage electrical equipment on-line monitoring system - Google Patents
High-voltage electrical equipment on-line monitoring system Download PDFInfo
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- CN212989511U CN212989511U CN202021328355.0U CN202021328355U CN212989511U CN 212989511 U CN212989511 U CN 212989511U CN 202021328355 U CN202021328355 U CN 202021328355U CN 212989511 U CN212989511 U CN 212989511U
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- 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
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- G—PHYSICS
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a high-voltage electrical equipment on-line monitoring system, including high-voltage transformer on-line monitoring station, GIS equipment on-line monitoring station, high-voltage motor on-line monitoring station, cubical switchboard on-line monitoring station and application server. Each online monitoring station stores the information monitored in real time into a respective edge computing gateway, and the edge computing gateway transmits the information in a set time period or the information required by a user to an application server; the user can directly obtain the information in the application server through the mobile client via the internet, or obtain the information through the display large screen via the ethernet. The online monitoring system can not only reduce the information storage burden of the application server through the edge computing gateway, but also realize the real-time comprehensive monitoring of the operation information and the fault information of various high-voltage electrical equipment, and can meet the information requirement of users.
Description
Technical Field
The utility model relates to an online monitoring field especially relates to a high-voltage electrical equipment on-line monitoring system.
Background
The electric equipment with the voltage class of 1000V or more is specified in the national grid company's "electric power safety work code". The high-voltage electrical equipment with monitoring requirements mainly comprises a high-voltage transformer, a GIS (gas insulated switchgear), a high-voltage motor, a switch cabinet and the like. In order to reduce labor intensity and improve operation safety, an online monitoring system is used for replacing manual work to carry out routing inspection and real-time fault monitoring on high-voltage electrical equipment.
However, the existing online monitoring system has the following problems: 1) most of the existing online monitoring systems only aim at single high-voltage electrical equipment, whether the high-voltage electrical equipment fails or not is judged according to whether a single element in the high-voltage electrical equipment exceeds a set threshold value or not, and the accuracy of failure judgment cannot be ensured only according to the single element; 2) the existing online monitoring system stores information which is concerned and not concerned by a user, and the information which is not concerned by the user can cause the storage burden of the system to be increased and can not meet the requirements of the user.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the utility model provides an online monitoring system for high-voltage electrical equipment, which can comprehensively monitor the fault of the high-voltage electrical equipment in real time based on multiple elements and can simultaneously realize the real-time online monitoring of information of various high-voltage electrical equipment; the edge computing gateway in the system reduces the information storage burden of the application server, and information concerned by a user can be directly provided through the application server.
In order to achieve the above object, the utility model provides a following scheme:
an on-line monitoring system for high-voltage electrical equipment, comprising:
the system comprises a high-voltage transformer online monitoring station, a GIS equipment online monitoring station, a high-voltage motor online monitoring station, a switch cabinet online monitoring station and an application server;
the high-voltage transformer on-line monitoring station stores the high-voltage transformer information monitored in real time into an edge computing gateway suitable for a high-voltage transformer, the GIS equipment on-line monitoring station stores the GIS equipment information monitored in real time into the edge computing gateway suitable for GIS equipment, the high-voltage motor on-line monitoring station stores the high-voltage motor information monitored in real time into the edge computing gateway suitable for a high-voltage motor, and the switch cabinet on-line monitoring station stores the switch cabinet information monitored in real time into the edge computing gateway suitable for a switch cabinet;
each edge computing gateway transmits and stores the monitored information in a set time period or the information required by a user to an application server through Ethernet;
the user obtains the information stored in the application server through the mobile client via the internet, or directly displays the information stored in the application server through the monitoring large screen.
The application server is a rack server, and the model number of the application server is NF5466M 5;
the model of the edge computing gateway is IG 902-H.
The high-voltage transformer on-line monitoring station comprises:
the infrared thermal imager is arranged at a position which is higher than the high-voltage transformer and is 2-5 meters away from the high-voltage transformer;
a dissolved gas monitoring device in oil, an iron core grounding current monitoring device, a partial discharge monitoring device, a transformer vibration monitoring device, a fiber bragg grating temperature measuring device and an edge calculation gateway suitable for a high-voltage transformer are all arranged in a switch cabinet which is 2-5 meters away from the high-voltage transformer and is arranged on the ground;
the edge computing gateway suitable for the high-voltage transformer is electrically connected with the infrared thermal imager, the oil dissolved gas monitoring device, the iron core grounding current monitoring device, the partial discharge monitoring device, the transformer vibration monitoring device and the fiber bragg grating temperature measuring device, and is used for storing information monitored by the infrared thermal imager and each device in real time, transmitting the monitored information in a set time period or information required by a user to an application server through Ethernet and storing the information.
GIS equipment on-line monitoring station includes:
the partial discharge monitoring device, the SF6 micro-water density monitoring device, the SF6 environment on-line monitoring device, the circuit breaker monitoring device and the edge computing gateway suitable for GIS equipment are all arranged in a switch cabinet which is 2-5 meters away from the GIS equipment and is arranged on the ground;
the edge computing gateway suitable for the GIS equipment is electrically connected with the partial discharge monitoring device, the SF6 micro-water density monitoring device, the SF6 environment online monitoring device and the breaker monitoring device, is used for storing information monitored by the devices in real time, and transmitting and storing the information monitored in a set time period or information required by a user to an application server through Ethernet.
The high-voltage motor on-line monitoring station comprises:
the alternating current electric quantity measuring device, the motor rotating speed measuring device, the motor vibration measuring device, the temperature and humidity measuring device and the edge calculation gateway suitable for the high-voltage motor are all arranged in a switch cabinet which is 2-5 meters away from the high-voltage motor and is arranged on the ground;
the edge computing gateway suitable for the high-voltage motor is electrically connected with the alternating current electric quantity measuring device, the motor rotating speed measuring device, the motor vibration measuring device and the temperature and humidity measuring device, and is used for storing information monitored by each device in real time, transmitting the monitored information in a set time period or information required by a user to an application server through an Ethernet and storing the information into the application server.
The online monitoring station of cubical switchboard includes:
the partial discharge monitoring device, the fiber bragg grating temperature measuring device and the edge computing gateway suitable for the switch cabinet are all arranged in the switch cabinet;
the edge computing gateway suitable for the switch cabinet is electrically connected with the partial discharge monitoring device and the fiber bragg grating temperature measuring device, and is used for storing information monitored by each device in real time, transmitting the monitored information in a set time period or information required by a user through the Ethernet and storing the information in an application server.
The monitoring device for the dissolved gas in the oil is electrically connected with an oil-gas separation device arranged in an oil sampling port of the high-voltage transformer, and the H in the oil tank of the high-voltage transformer collected by the oil-gas separation device is obtained2、CO、CO2、CH4、C2H2、C2H4、C2H6Composition and content information of (a);
the iron core grounding current monitoring device is electrically connected with an active zero magnetic flux leakage current sensor arranged on an iron core grounding sheet of the high-voltage transformer, and grounding leakage current information acquired by the active zero magnetic flux leakage current sensor is acquired;
the partial discharge monitoring device is electrically connected with an ultrahigh frequency sensor arranged on the outer wall of an oil discharge pipeline directly communicated with an oil discharge valve of the high-voltage transformer, and the amplitude, the polarity, the discharge phase and the discharge frequency information of a discharge signal of the high-voltage transformer, which are acquired by the ultrahigh frequency sensor, are acquired;
the transformer vibration monitoring device is electrically connected with a vibration sensor arranged on the outer surface of the high-voltage transformer to acquire vibration information acquired by the vibration sensor;
the fiber bragg grating monitoring device is electrically connected with a fiber bragg grating temperature sensor arranged on the outer surface of a winding surrounding an iron core in the high-voltage transformer, and temperature information of the winding, acquired by the fiber bragg grating temperature sensor, is acquired;
in the oil tank H2、CO、CO2、CH4、C2H2、C2H4、C2H6The component and content information of (a), the grounding leakage current information, the amplitude and polarity of the discharge signal, the phase and discharge frequency information of the discharge, the vibration information and the temperature information are the heightAnd the information monitored by the online monitoring station of the voltage transformer in real time is stored in the edge computing gateway suitable for the high-voltage transformer.
The partial discharge monitoring device is electrically connected with an ultrahigh frequency sensor arranged on the outer wall of a basin-type insulator of the GIS equipment, and is used for acquiring the amplitude, the polarity, the phase of discharge and the discharge frequency information of a discharge signal in the GIS equipment, which are acquired by the ultrahigh frequency sensor;
the SF6 micro-water density monitoring device is electrically connected with an SF6 density relay arranged on the outer wall of the totally closed metal grounding shell of the GIS equipment, and the density, pressure and temperature information of SF6 gas acquired by the SF6 density relay is acquired;
at least one high-sensitivity SF6-02 sensor is installed in an indoor environment where the GIS equipment is located in a distributed mode, the SF6 environment online monitoring device is electrically connected with the high-sensitivity SF6-02 sensor, and SF6 gas content and oxygen content information in air in the indoor air environment where the GIS equipment is installed, which are acquired by the high-sensitivity SF6-02 sensor, are acquired;
the breaker monitoring device is electrically connected with a current transformer, a Hall sensor, a vibration sensor and a mechanical characteristic tester which are arranged on the outer wall of a breaker in a totally closed metal shell of the GIS equipment, and is used for acquiring the state information of the breaker, which is acquired by the current transformer, the Hall sensor and the vibration sensor, and the mechanical characteristic information of the breaker, which is acquired by the mechanical characteristic tester;
the amplitude, the polarity, the discharging phase and the discharging frequency information of the discharging signal, the density, the pressure and the temperature information of SF6 gas, the SF6 gas content and the oxygen content information in the air, the state information and the mechanical characteristic information are information monitored by the GIS equipment online monitoring station in real time, and are stored in the edge computing gateway applicable to the GIS equipment.
The alternating current electrical quantity measuring device is electrically connected with a voltage sensor and a current sensor which are arranged on a power supply line of the high-voltage motor, and is used for acquiring voltage information of the high-voltage motor during working, which is acquired by the voltage sensor, and current information of the high-voltage motor during working, which is acquired by the current sensor;
the motor rotating speed measuring device is electrically connected with a Hall sensor arranged on a bearing of the high-voltage motor, and rotating speed information of the high-voltage motor during working, which is acquired by the Hall sensor, is acquired;
the motor vibration device is electrically connected with a vibration sensor and an acceleration sensor which are arranged on a bearing of the high-voltage motor along the horizontal direction and the vertical direction, and vibration frequency information of the high-voltage motor during working, which is acquired by the vibration sensor and the acceleration sensor;
the motor displacement measuring device is electrically connected with a linear displacement sensor arranged on the outer surface of the high-voltage motor and the base thereof, and is used for acquiring displacement change information of the high-voltage motor relative to the base thereof when the high-voltage motor works, which is acquired by the linear displacement sensor;
the temperature and humidity measuring device is electrically connected with at least one temperature and humidity sensor arranged on the outer surface of the high-voltage motor, and temperature and humidity information of the outer surface of the high-voltage motor, which is acquired by the temperature and humidity sensor, is acquired;
the voltage information and the current information, the rotating speed information, the vibration frequency information, the displacement change information and the temperature and humidity information are information monitored by the high-voltage motor online monitoring station in real time and are stored in the edge computing gateway suitable for the high-voltage motor.
The partial discharge monitoring device is electrically connected with at least one ultrahigh frequency sensor arranged on the inner wall of the switch cabinet, and is used for acquiring the amplitude, the polarity, the phase of discharge and the discharge frequency information of a discharge signal generated in the switch cabinet during working, which are acquired by the ultrahigh frequency sensor;
the fiber bragg grating monitoring device is electrically connected with the fiber bragg grating temperature sensor to acquire temperature information of the surfaces of the circuit breaker, the isolating switch, the load switch, the operating mechanism, the mutual inductor and various protection devices, which is acquired by the fiber bragg grating temperature sensor;
the amplitude, the polarity, the discharging phase and the discharging frequency information of the discharging signal and the surface temperature information are information monitored by the switch cabinet online monitoring station in real time and are stored in the edge computing gateway applicable to the switch cabinet.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
1) the utility model provides a high-voltage electrical equipment on-line monitoring system can carry out real-time on-line monitoring simultaneously to high-voltage electrical equipment such as high-voltage transformer, GIS equipment, high-voltage motor, cubical switchboard, has solved the problem that current on-line monitoring system can only monitor single type high-voltage electrical equipment;
2) the utility model simultaneously monitors various information of the high-voltage transformer on line in real time through an infrared thermal imager, a monitoring device for dissolved gas in oil, a monitoring device for iron core grounding current, a monitoring device for partial discharge, a monitoring device for transformer vibration and a fiber grating temperature measuring device; simultaneously monitoring various information of GIS equipment in real time on line through a partial discharge monitoring device, an SF6 micro-water density monitoring device, an SF6 environment on-line monitoring device and a breaker monitoring device; various information of the high-voltage motor is simultaneously monitored on line in real time through an alternating current electric quantity measuring device, a motor rotating speed measuring device, a motor vibration measuring device, a motor displacement measuring device and a temperature and humidity measuring device; various information of the switch cabinet is monitored on line in real time through the partial discharge monitoring device and the fiber bragg grating temperature measuring device; respectively realizing the on-line monitoring of the high-voltage transformer, the GIS equipment, the high-voltage motor and the switch cabinet according to various information monitored in real time on line;
the working personnel can comprehensively consider the real-time working conditions of the high-voltage transformer, the GIS equipment, the high-voltage motor and the switch cabinet according to various information and realize the real-time comprehensive monitoring of the faults of the high-voltage transformer, the GIS equipment, the high-voltage motor and the switch cabinet based on various information;
3) the utility model discloses an edge calculation gateway suitable for high-voltage transformer, GIS equipment, high-voltage motor and cubical switchboard stores the whole real-time on-line monitoring information that high-voltage transformer, GIS equipment, high-voltage motor and cubical switchboard correspond respectively; the application server only stores monitoring information which is extracted from the edge computing gateway and is concerned by the user within a set time period; when a user needs to acquire concerned monitoring information, the information can be directly acquired from an application server through the Internet or directly read from a monitoring large screen. The design not only reduces the storage burden of the application server, but also can meet the daily information requirement of the user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural diagram of an on-line monitoring system for high-voltage electrical equipment;
FIG. 2 is a schematic structural diagram of an online monitoring station for a high-voltage transformer;
FIG. 3 is a schematic structural diagram of an online GIS device monitoring station;
FIG. 4 is a schematic structural diagram of an online monitoring station for a high-voltage motor;
fig. 5 is a schematic structural diagram of the on-line monitoring station of the switch cabinet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a high-voltage electrical equipment on-line monitoring system. The working principle is as follows: the high-voltage electrical equipment on-line monitoring system comprises a plurality of subordinate on-line monitoring stations, namely a high-voltage transformer on-line monitoring station, a GIS (geographic information System) equipment on-line monitoring station, a high-voltage motor on-line monitoring station and a switch cabinet on-line monitoring station, wherein the four on-line monitoring stations are electrically connected with sensors on corresponding equipment respectively, so that the information of the high-voltage transformer, the GIS equipment, the high-voltage motor and the switch cabinet is collected in real time, and the information is stored in edge computing gateways in the on-line monitoring stations.
The edge computing gateways comprise an edge computing gateway suitable for a high-voltage transformer, an edge computing gateway suitable for GIS equipment, an edge computing gateway suitable for a high-voltage motor and an edge computing gateway suitable for a switch cabinet. Each edge computing gateway is provided with at least two paths of 100M Ethernet ports, wherein one path is used for communicating with an application server, and the other path is electrically connected with monitoring devices in each online monitoring station and used for acquiring real-time monitoring information. The storage capacity of each edge computing gateway may be determined based on the number of monitoring devices electrically connected thereto and the amount of time a user wants its information to be stored. Each edge computing gateway compares the information monitored in real time with the information set by the user, and if the information monitored in real time is different from the information set by the user, the edge computing gateway sends feedback information.
The edge computing gateway can extract the information monitored in a set time period or the information required by the user and the feedback information in all the information, transmit the information to the application server and store the information, and the user can directly obtain the information in the application server through a mobile client or a display large screen.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic structural diagram of an on-line monitoring system for high-voltage electrical equipment. The main body of the high-voltage electrical equipment on-line monitoring system is composed of a high-voltage transformer on-line monitoring station, a GIS equipment on-line monitoring station, a high-voltage motor on-line monitoring station, a switch cabinet on-line monitoring station and an application server. The high-voltage transformer online monitoring station, the GIS equipment online monitoring station, the high-voltage motor online monitoring station and the switch cabinet online monitoring station are similar to switch cabinet bodies in shape. In the actual operation process, each online monitoring station comprising various monitoring devices is placed in a range of 2-5 meters near corresponding monitored equipment, then each online monitoring station transmits and stores information monitored in a set time period or information required by a user in information collected by various monitoring devices in real time and feedback information of an edge computing gateway into an application server through Ethernet, and the user can directly obtain the required information from the application server through the Internet through a mobile client or view the information stored in the application server in real time through a large monitoring screen.
And a firewall is arranged between the application server and the Internet and used for improving the safety of the user for acquiring the information from the application server through the mobile client, weakening the intrusion of the external environment on the information in the application server and ensuring the integrity and the accuracy of the information in the application server.
Fig. 2 is a schematic structural diagram of the high-voltage transformer online monitoring station. The high-voltage transformer on-line monitoring station comprises an edge calculation gateway, an infrared thermal imager, a dissolved gas monitoring device in oil, an iron core grounding current monitoring device, a partial discharge monitoring device, a transformer vibration monitoring device and a fiber grating temperature measuring device which are suitable for the high-voltage transformer.
The working principle and the working mode of the infrared thermal imager are conventional in the field, and the infrared thermal imager needs to be installed at a position which is higher than the high-voltage transformer and is 2-5 meters away from the high-voltage transformer.
The transformer structure generally is transformer tank, iron core and winding, and transformer tank is the shell of transformer, is equipped with iron core and winding in to be full of transformer oil in transformer tank, make iron core and winding all soak in transformer oil, when the transformer normally worked, transformer oil played insulating and radiating effect. The transformer tank also comprises an oil extraction deviceAppearance mouth, the utility model discloses an install oil-gas separation device in transformer tank's oil sample mouth, be connected dissolved gas monitoring devices in with oil-gas separation device electricity for H in the real-time supervision transformer tank2、CO、CO2、CH4、C2H2、C2H4、C2H6Composition and content information of (a).
In order to ensure the normal operation of the transformer, one point of the iron core of the transformer must be reliably grounded, and if the iron core is not grounded, the iron core generates a floating voltage to the ground, so that the intermittent breakdown discharge of the iron core to the ground is caused. In addition, in order to ensure the normal operation of the transformer, only one point of the iron core can be grounded, but not two or more points, because when more than two points of the iron core are grounded, the iron core can generate uneven potential, so that circulation current is formed among a plurality of grounding points, heating faults occur at the positions of the plurality of grounding points, further the iron core is locally overheated, and the faults of the power system can be caused in severe cases.
The utility model discloses a place active zero magnetic flux leakage current sensor at the iron core earthing terminal of transformer, be connected iron core earthing current monitoring devices and active zero magnetic flux leakage current sensor electricity for the ground connection leakage current information of real-time supervision transformer core.
The transformer oil tank not only has the oil sample mouth, still has the fuel outlet valve, the utility model discloses an install the hyperfrequency sensor at the outer wall with the direct oil drain pipeline that communicates of fuel outlet valve to be connected hyperfrequency sensor and partial discharge monitoring devices electricity, be used for real-time supervision transformer discharge signal's amplitude, polarity, the phase place of discharging and the number of times information that discharges.
Additionally, the utility model discloses install the surface at the transformer with vibration sensor, be connected vibration sensor and transformer vibration monitoring devices electricity for the vibration information of real-time supervision transformer surface. The fiber bragg grating temperature sensor is arranged on the outer surface of the winding surrounding the iron core, and the fiber bragg grating temperature measuring device is electrically connected with the fiber bragg grating temperature sensor and used for monitoring the temperature information of the winding in the transformer in real time.
The high-voltage transformer on-line monitoring station also comprises an edge calculation gateway suitable for the high-voltage transformer, and when the high-voltage transformer on-line monitoring station normally works, the devices can transmit the information monitored in real time to the edge calculation gateway suitable for the high-voltage transformer, namely, the edge calculation gateway suitable for the high-voltage transformer stores all the information about the transformer monitored in real time. The high-voltage transformer online monitoring station is communicated with the application server through the Ethernet, information in a set time period can be selected from all information and transmitted to the application server in real time, or when a user wants to acquire the information, the communication can be directly established between a mobile client and the application server through the Internet, and the information required by the user is directly acquired in an edge computing gateway applicable to the high-voltage transformer through the application server.
The utility model discloses not only the information that a plurality of sensors at the different positions of high voltage transformer were installed to the accessible acquire high voltage transformer in real time, do benefit to the monitoring to high voltage transformer real-time status and real-time behavior, realize the real-time judgement to high voltage transformer trouble, simultaneously through the marginal calculation gateway that is applicable to high voltage transformer who sets up in high voltage transformer on-line monitoring station, the whole information about high voltage transformer of real-time supervision has been saved, and acquire the information of setting for the time quantum through application server or only acquire the information that the user needs and the feedback information of marginal calculation gateway, it needs all information to save to have solved current application server, the great problem that influences system life-span and information acquisition convenience of storage burden.
Fig. 3 is a schematic structural diagram of an online monitoring station for GIS equipment. The GIS equipment on-line monitoring station comprises an edge computing gateway, a partial discharge monitoring device, an SF6 micro-water density monitoring device, an SF6 environment on-line monitoring device and a circuit breaker monitoring device which are suitable for GIS equipment.
GIS equipment is the GAS insulated SWITCHGEAR for short, and consists of a circuit breaker, a disconnecting switch, an earthing switch, a mutual inductor, a lightning arrester, a bus, a connecting piece and an outgoing line terminal, wherein the components are all positioned in a totally enclosed metal earthing shell, and SF6 (sulfur hexafluoride) insulating GAS with certain pressure is filled in the shell. GIS equipment is a high voltage power distribution unit.
The basin insulator is the insulating support piece who is used for connecting two air chambers of GIS equipment, the utility model discloses an install the hyperfrequency sensor at the outer wall of basin insulator, be connected partial discharge monitoring devices and hyperfrequency sensor electricity for the inside amplitude, the polarity of the discharge signal of real-time supervision GIS equipment, the phase place of discharging and the number of times information that discharges.
In addition, the insulating gas SF6 is filled in the fully sealed metal grounding shell, the insulating gas has certain density value under the rated pressure of 20 ℃, when the temperature changes, although the pressure of the insulating gas SF6 changes along with the temperature change, the density value is always constant, and whether the GIS equipment can normally work is closely related to the density value of the insulating gas SF 6. Accurate monitoring of the density value of SF6 insulating gas in GIS equipment is therefore important.
The utility model discloses an install SF6 density relay on the outer wall of the whole confined metal ground connection shell of GIS equipment, be connected SF6 environment on-line monitoring device and SF6 density relay electricity for density, pressure and the temperature information of SF6 insulating gas in through SF6 density relay real-time supervision GIS equipment.
However, the density, pressure and temperature information of the SF6 insulating gas, which is monitored in real time only by an SF6 density relay, often cannot truly reflect the leakage condition of the SF6 insulating gas. Therefore, the utility model discloses install a plurality of high sensitivity SF6-02 sensors distributedly in the indoor environment of installing GIS equipment to be connected SF6 environment on-line monitoring device and a plurality of high sensitivity SF6-02 sensor electricity, be arranged in installing SF6 insulating gas content and the oxygen content information in the air in the indoor air circumstance of GIS equipment through real-time supervision, combine SF6 density relay real-time supervision's the interior SF6 insulating gas's of GIS equipment density, pressure and temperature information, come the comprehensive judgement SF6 insulating gas's in the GIS equipment leakage condition.
Additionally, the utility model discloses still install current transformer, hall sensor, vibration sensor and mechanical properties tester on the circuit breaker outer wall in the whole confined metal ground shell of GIS equipment to be connected circuit breaker monitoring devices and current transformer, hall sensor, vibration sensor and mechanical properties tester electricity, be used for through the state information of current transformer, hall sensor and vibration sensor real-time supervision circuit breaker, through the mechanical properties information of mechanical properties tester real-time supervision circuit breaker.
The utility model discloses not only the information that the multiple sensor of accessible installation at GIS equipment inside or external environment acquireed GIS equipment in real time, do benefit to the monitoring to GIS equipment real-time status and real-time behavior, realize the real-time judgement to GIS equipment trouble, simultaneously through the marginal calculation gateway who is applicable to GIS equipment who sets up in GIS equipment on-line monitoring station, the total information about GIS equipment of real-time supervision has been stored, and acquire the information of setting for the time quantum through application server or only acquire the information that the user needs and the feedback information of marginal calculation gateway, it needs all information to store to have solved current application server, the great problem that influences system life-span and information acquisition convenience of storage burden.
Fig. 4 is a schematic structural diagram of the high-voltage motor online monitoring station. The high-voltage motor online monitoring station comprises an edge calculation gateway, an alternating current electric quantity measuring device, a motor rotating speed measuring device, a motor vibration measuring device, a motor displacement measuring device and a temperature and humidity measuring device which are suitable for the high-voltage motor.
The stator, the rotor and the bearing are basic components of the high-voltage motor, the stator, the rotor and the bearing are all located in a shell of the high-voltage motor, and a machine base of the high-voltage motor is used for fixing the stator and the front end cover and the rear end cover to support the rotor, so that the stator, the rotor and the bearing play roles in protecting and radiating in the working process of the high-voltage motor. The working principle of the high-voltage motor is as follows: the stator of the high-voltage motor is electrified, a rotating magnetic field is generated between the stators, the rotating magnetic field acts on the rotor to form magnetoelectric power rotating torque, and the rotor drives the shaft of the high-voltage motor to do mechanical motion, so that the conversion from electric energy to mechanical energy is realized.
In order to realize the comprehensive real-time supervision to high-voltage motor information, the utility model discloses install voltage sensor and current sensor on high-voltage motor's power supply line, be connected alternating current electrical quantity measuring device and voltage sensor and current sensor electricity for the voltage information and the current information of real-time supervision high-voltage motor during operation.
When the high-voltage motor is electrified to work, a magnetic field is generated near the stator to enable the rotor to be connected with the shaft to rotate under the action of magnetoelectric power rotating torque, the shaft penetrates through the circular hole in the middle of the bearing, the friction coefficient in the motion process of the rotor is reduced in the rotation process of the rotor connected with the shaft, and meanwhile, the rotation precision of the rotor is guaranteed. The utility model discloses installed hall sensor on high-voltage motor's bearing, be connected motor speed measuring device and hall sensor electricity for through the rotational speed information of motor speed measuring device real-time supervision high-voltage motor during operation. Additionally, the utility model discloses still installed vibration sensor and acceleration sensor respectively along horizontal direction and vertical direction on the high-voltage motor bearing to all be connected vibration sensor and acceleration sensor with motor vibration measuring device electricity, be used for the vibration frequency information of real-time supervision high-voltage motor during operation.
In order to realize the comprehensive monitoring of high-voltage motor during operation information, the utility model discloses still at high-voltage motor surface mounting at least one temperature and humidity sensor to be connected temperature and humidity sensor and temperature and humidity measuring device electricity for the temperature and humidity information of real-time supervision high-voltage motor surface. In addition, when the high-voltage motor is operated, not only information on the inner or outer surface of the high-voltage motor itself but also a housing of the high-voltage motor for fixing the stator of the high-voltage motor and supporting the rotor is changed from a stationary state. In order to acquire the information of high-voltage motor during operation in comprehensive monitoring, the utility model discloses still installed linear displacement sensor on high-voltage motor's surface and frame to be connected linear displacement sensor and motor displacement measuring device electricity, be used for the displacement change information of the relative frame of real-time supervision high-voltage motor during operation high-voltage motor.
The utility model discloses not only the information that a plurality of sensors at high-voltage motor inside or external environment were installed to the accessible acquire high-voltage motor in real time, do benefit to the monitoring to high-voltage motor real-time status and real-time behavior, realize the real-time judgement to high-voltage motor trouble, simultaneously through the marginal calculation gateway that is applicable to high-voltage motor who sets up in high-voltage motor on-line monitoring station, the whole information about high-voltage motor of real-time supervision has been saved, and acquire the information of setting for the time quantum through application server or only acquire the information that the user needs and the feedback information of marginal calculation gateway, it needs all information to save to have solved current application server, the great problem that influences system life-span and information acquisition convenience of storage burden.
Fig. 5 is a schematic structural diagram of the on-line monitoring station of the switch cabinet. The on-line monitoring station of the switch cabinet comprises an edge computing gateway, a partial discharge monitoring device and a fiber bragg grating temperature measuring device which are suitable for the switch cabinet.
The switch cabinet is used for opening, closing, controlling and protecting electric equipment in the power generation, transmission, distribution and electric energy conversion processes of a power system, and mainly comprises a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor and various protection devices. The utility model discloses at least one hyperfrequency sensor has been installed at the cubical switchboard inner wall to be connected the hyperfrequency sensor with the partial discharge monitoring devices electricity, be used for amplitude, polarity, the phase place of discharging and the number of times information of discharging of the inside discharge signal that produces of real-time supervision cubical switchboard during operation. Additionally, the utility model discloses still all installed fiber grating temperature sensor in cable joint department between circuit breaker, isolator, load switch, operating device, mutual-inductor and various protection device, be connected fiber grating temperature sensor and fiber grating monitoring device electricity for the temperature information on above-mentioned major structure surface in the real-time supervision cubical switchboard. The amplitude, the polarity, the discharging phase and the discharging frequency information of the discharging signal generated inside the switch cabinet during working and the temperature information of the main structure surface of the switch cabinet are integrated, so that the comprehensive monitoring of the switch cabinet information is realized.
The utility model discloses not only the information of cubical switchboard is acquireed in real time to a plurality of sensors of cubical switchboard inside is installed to the accessible, do benefit to the monitoring to cubical switchboard real-time state and real-time behavior, realize the real-time judgement to the cubical switchboard trouble, simultaneously through the marginal calculation gateway that is applicable to the cubical switchboard that sets up in the online monitoring station of cubical switchboard, the whole information about the cubical switchboard of real-time supervision has been saved, and acquire the information of setting for the time quantum or only acquire the information that the user needs and the feedback information of marginal calculation gateway through application server, it needs to save whole information to have solved current application server, the great problem that influences system life-span and information acquisition convenience of storage burden.
Combine the aforesaid, judge high-voltage electrical equipment's operating condition and operational aspect based on single key element now in order to solve, lead to judging unsafe problem, the utility model discloses to high-voltage transformer, GIS equipment, high-voltage motor and cubical switchboard real-time supervision before, in each by the inside of high-voltage electrical equipment that is surveyed, more than one sensor has all been installed to the different positions of surface or external environment, inside by the high-voltage electrical equipment that is surveyed through real-time supervision, all information in surface or the external environment, realize by real-time comprehensive monitoring and comprehensive fault diagnosis of high-voltage electrical equipment operating condition and operational aspect that is surveyed.
In order to solve present application server and need the whole monitoring information of storage to lead to the storage burden great, system life is shorter, and can not provide the problem of required information for the user, the utility model discloses at high-voltage transformer on-line monitoring station, GIS equipment on-line monitoring station, high-voltage motor on-line monitoring station and cubical switchboard on-line monitoring station inside all set up the marginal calculation gateway that is applicable to each high-voltage electrical equipment, its effect is the whole information of each on-line monitoring station real-time monitoring of storage to information in the time quantum will be set for or the information that the user needs and the feedback information of marginal calculation gateway send application server to through the ethernet.
The addition of the edge computing gateway ensures that the information stored in the application server is not all the information monitored by a plurality of online monitoring stations in real time any more, but only a small part of the all the information. The user can directly obtain information from the application server through the mobile client through the internet, or directly check the information stored in the application server through the monitoring large screen. The above arrangement of the utility model, not only alleviated application server's information storage pressure, alleviateed its information storage burden, still through edge calculation gateway and application server's cooperation simultaneously, made the user acquire each high-voltage electrical equipment's monitoring information more conveniently, further strengthened the judgement accuracy and the comprehensiveness to high-voltage electrical equipment operating condition and behavior.
It should be noted that, the utility model discloses in with high voltage transformer on-line monitoring station, GIS equipment on-line monitoring station, high-tension motor on-line monitoring station and cubical switchboard on-line monitoring station in each monitoring device electricity be connected, and the quantity that is located each measured high-tension electricity gas equipment inside, surface or external environment's sensor be at least one, the accessible increases the quantity of sensor, further improves each measured high-tension electricity gas equipment corresponding real-time supervision information's the degree of accuracy. The quantity of sensor is not limited, as long as can realize the function that the sensor corresponds, its quantity is just in the utility model discloses a protection scope.
It should be noted in addition that the utility model discloses an in the actual operation process, not necessarily set up high-voltage transformer on-line monitoring station, GIS equipment on-line monitoring station, high-tension motor on-line monitoring station and cubical switchboard on-line monitoring station simultaneously, these on-line monitoring stations are the side by side relation, the user can select the on-line monitoring station that high-voltage electrical equipment corresponds according to actual demand when using, the on-line monitoring station that will select passes through ethernet and application server and establishes the communication, and accomplish the real-time comprehensive monitoring and the information acquisition of high-voltage electrical equipment information. Therefore as long as one of them or several based on above-mentioned on-line monitoring station realize the real-time comprehensive monitoring and the information acquisition of high-voltage electrical equipment information, all be in the utility model discloses a protection scope.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. An on-line monitoring system for high-voltage electrical equipment, comprising:
the system comprises a high-voltage transformer online monitoring station, a GIS equipment online monitoring station, a high-voltage motor online monitoring station, a switch cabinet online monitoring station and an application server;
the high-voltage transformer on-line monitoring station stores the high-voltage transformer information monitored in real time into an edge computing gateway suitable for a high-voltage transformer, the GIS equipment on-line monitoring station stores the GIS equipment information monitored in real time into the edge computing gateway suitable for GIS equipment, the high-voltage motor on-line monitoring station stores the high-voltage motor information monitored in real time into the edge computing gateway suitable for a high-voltage motor, and the switch cabinet on-line monitoring station stores the switch cabinet information monitored in real time into the edge computing gateway suitable for a switch cabinet;
each edge computing gateway transmits and stores the monitored information in a set time period or the information required by a user to an application server through Ethernet;
the user obtains the information stored in the application server through the mobile client via the internet, or directly displays the information stored in the application server through the monitoring large screen.
2. The high-voltage electrical equipment online monitoring system of claim 1, wherein the high-voltage transformer online monitoring station comprises:
the infrared thermal imager is arranged at a position which is higher than the high-voltage transformer and is 2-5 meters away from the high-voltage transformer;
a dissolved gas monitoring device in oil, an iron core grounding current monitoring device, a partial discharge monitoring device, a transformer vibration monitoring device, a fiber bragg grating temperature measuring device and an edge calculation gateway suitable for a high-voltage transformer are all arranged in a switch cabinet which is 2-5 meters away from the high-voltage transformer and is arranged on the ground;
the edge computing gateway suitable for the high-voltage transformer is electrically connected with the infrared thermal imager, the oil dissolved gas monitoring device, the iron core grounding current monitoring device, the partial discharge monitoring device, the transformer vibration monitoring device and the fiber bragg grating temperature measuring device, and is used for storing information monitored by the infrared thermal imager and each device in real time, transmitting the monitored information in a set time period or information required by a user to an application server through Ethernet and storing the information.
3. The high-voltage electrical equipment online monitoring system according to claim 1, wherein the GIS equipment online monitoring station comprises:
the partial discharge monitoring device, the SF6 micro-water density monitoring device, the SF6 environment on-line monitoring device, the circuit breaker monitoring device and the edge computing gateway suitable for GIS equipment are all arranged in a switch cabinet which is 2-5 meters away from the GIS equipment and is arranged on the ground;
the edge computing gateway suitable for the GIS equipment is electrically connected with the partial discharge monitoring device, the SF6 micro-water density monitoring device, the SF6 environment online monitoring device and the breaker monitoring device, is used for storing information monitored by the devices in real time, and transmitting and storing the information monitored in a set time period or information required by a user to an application server through Ethernet.
4. The high-voltage electrical equipment on-line monitoring system according to claim 1, wherein the high-voltage motor on-line monitoring station comprises:
the alternating current electrical quantity measuring device, the motor rotating speed measuring device, the motor vibration measuring device, the motor displacement measuring device, the temperature and humidity measuring device and the edge computing gateway suitable for the high-voltage motor are all arranged in a switch cabinet which is 2-5 meters away from the high-voltage motor and is arranged on the ground;
the edge computing gateway suitable for the high-voltage motor is electrically connected with the alternating current electric quantity measuring device, the motor rotating speed measuring device, the motor vibration measuring device and the temperature and humidity measuring device, and is used for storing information monitored by each device in real time, transmitting the monitored information in a set time period or information required by a user to an application server through an Ethernet and storing the information into the application server.
5. The high voltage electrical equipment on-line monitoring system of claim 1, wherein the switch cabinet on-line monitoring station comprises:
the partial discharge monitoring device, the fiber bragg grating temperature measuring device and the edge computing gateway suitable for the switch cabinet are all arranged in the switch cabinet;
the edge computing gateway suitable for the switch cabinet is electrically connected with the partial discharge monitoring device and the fiber bragg grating temperature measuring device, and is used for storing information monitored by each device in real time, transmitting the monitored information in a set time period or information required by a user through the Ethernet and storing the information in an application server.
6. The on-line monitoring system for high-voltage electrical equipment according to claim 2,
the monitoring device for the dissolved gas in the oil is electrically connected with an oil-gas separation device arranged in an oil sampling port of the high-voltage transformer, and the H in the oil tank of the high-voltage transformer collected by the oil-gas separation device is obtained2、CO、CO2、CH4、C2H2、C2H4、C2H6Composition and content information of (a);
the iron core grounding current monitoring device is electrically connected with an active zero magnetic flux leakage current sensor arranged on an iron core grounding sheet of the high-voltage transformer, and grounding leakage current information acquired by the active zero magnetic flux leakage current sensor is acquired;
the partial discharge monitoring device is electrically connected with an ultrahigh frequency sensor arranged on the outer wall of an oil discharge pipeline directly communicated with an oil discharge valve of the high-voltage transformer, and the amplitude, the polarity, the discharge phase and the discharge frequency information of a discharge signal of the high-voltage transformer, which are acquired by the ultrahigh frequency sensor, are acquired;
the transformer vibration monitoring device is electrically connected with a vibration sensor arranged on the outer surface of the high-voltage transformer to acquire vibration information acquired by the vibration sensor;
the fiber bragg grating monitoring device is electrically connected with a fiber bragg grating temperature sensor arranged on the outer surface of a winding surrounding an iron core in the high-voltage transformer, and temperature information of the winding, acquired by the fiber bragg grating temperature sensor, is acquired;
in the oil tank H2、CO、CO2、CH4、C2H2、C2H4、C2H6The information of the components and the content of the high-voltage transformer, the information of the grounding leakage current, the amplitude and the polarity of the discharge signal, the phase and the discharge frequency of the discharge signal, the vibration information and the temperature information are the information monitored by the high-voltage transformer on-line monitoring station in real time and are all stored in the edge computing gateway suitable for the high-voltage transformer.
7. The on-line monitoring system for high-voltage electrical equipment according to claim 3,
the partial discharge monitoring device is electrically connected with an ultrahigh frequency sensor arranged on the outer wall of a basin-type insulator of the GIS equipment, and is used for acquiring the amplitude, the polarity, the phase of discharge and the discharge frequency information of a discharge signal in the GIS equipment, which are acquired by the ultrahigh frequency sensor;
the SF6 micro-water density monitoring device is electrically connected with an SF6 density relay arranged on the outer wall of the totally closed metal grounding shell of the GIS equipment, and the density, pressure and temperature information of SF6 gas acquired by the SF6 density relay is acquired;
at least one high-sensitivity SF6-02 sensor is installed in an indoor environment where the GIS equipment is located in a distributed mode, the SF6 environment online monitoring device is electrically connected with the high-sensitivity SF6-02 sensor, and SF6 gas content and oxygen content information in air in the indoor air environment where the GIS equipment is installed, which are acquired by the high-sensitivity SF6-02 sensor, are acquired;
the breaker monitoring device is electrically connected with a current transformer, a Hall sensor, a vibration sensor and a mechanical characteristic tester which are arranged on the outer wall of a breaker in a totally closed metal shell of the GIS equipment, and is used for acquiring the state information of the breaker, which is acquired by the current transformer, the Hall sensor and the vibration sensor, and the mechanical characteristic information of the breaker, which is acquired by the mechanical characteristic tester;
the amplitude, the polarity, the discharging phase and the discharging frequency information of the discharging signal, the density, the pressure and the temperature information of SF6 gas, the SF6 gas content and the oxygen content information in the air, the state information and the mechanical characteristic information are information monitored by the GIS equipment online monitoring station in real time, and are stored in the edge computing gateway applicable to the GIS equipment.
8. The on-line monitoring system for high-voltage electrical equipment according to claim 4,
the alternating current electrical quantity measuring device is electrically connected with a voltage sensor and a current sensor which are arranged on a power supply line of the high-voltage motor, and is used for acquiring voltage information of the high-voltage motor during working, which is acquired by the voltage sensor, and current information of the high-voltage motor during working, which is acquired by the current sensor;
the motor rotating speed measuring device is electrically connected with a Hall sensor arranged on a bearing of the high-voltage motor, and rotating speed information of the high-voltage motor during working, which is acquired by the Hall sensor, is acquired;
the motor vibration measuring device is electrically connected with a vibration sensor and an acceleration sensor which are arranged on a bearing of the high-voltage motor along the horizontal direction and the vertical direction, and vibration frequency information of the high-voltage motor during working, which is acquired by the vibration sensor and the acceleration sensor;
the motor displacement measuring device is electrically connected with a linear displacement sensor arranged on the outer surface of the high-voltage motor and the base thereof, and is used for acquiring displacement change information of the high-voltage motor relative to the base thereof when the high-voltage motor works, which is acquired by the linear displacement sensor;
the temperature and humidity measuring device is electrically connected with at least one temperature and humidity sensor arranged on the outer surface of the high-voltage motor, and temperature and humidity information of the outer surface of the high-voltage motor, which is acquired by the temperature and humidity sensor, is acquired;
the voltage information and the current information, the rotating speed information, the vibration frequency information, the displacement change information and the temperature and humidity information are information monitored by the high-voltage motor online monitoring station in real time and are stored in the edge computing gateway suitable for the high-voltage motor.
9. The on-line monitoring system for high-voltage electrical equipment according to claim 5,
the partial discharge monitoring device is electrically connected with at least one ultrahigh frequency sensor arranged on the inner wall of the switch cabinet, and is used for acquiring the amplitude, the polarity, the phase of discharge and the discharge frequency information of a discharge signal generated in the switch cabinet during working, which are acquired by the ultrahigh frequency sensor;
the fiber bragg grating monitoring device is electrically connected with the fiber bragg grating temperature sensor to acquire temperature information of the surfaces of the circuit breaker, the isolating switch, the load switch, the operating mechanism and the mutual inductor, which is acquired by the fiber bragg grating temperature sensor;
the amplitude, the polarity, the discharging phase and the discharging frequency information of the discharging signal and the surface temperature information are information monitored by the switch cabinet online monitoring station in real time and are stored in the edge computing gateway applicable to the switch cabinet.
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| CN202021328355.0U CN212989511U (en) | 2020-07-08 | 2020-07-08 | High-voltage electrical equipment on-line monitoring system |
| PCT/CN2020/104041 WO2022007013A1 (en) | 2020-07-08 | 2020-07-24 | Online monitoring and fault prediction system for high-voltage electrical device |
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| CN113391176A (en) * | 2021-07-29 | 2021-09-14 | 广东电网有限责任公司 | GIS partial discharge intelligent monitoring device based on edge calculation |
| CN113791176A (en) * | 2021-08-12 | 2021-12-14 | 深圳供电局有限公司 | Method and system for monitoring gas in switch cabinet |
| CN114217215A (en) * | 2021-11-24 | 2022-03-22 | 广东电网有限责任公司电力科学研究院 | GIS switch state monitoring method, device and system |
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| WO2011034253A1 (en) * | 2009-09-15 | 2011-03-24 | 한국전기안전공사 | Remote electrical safety diagnosis system and apparatus |
| CN201733135U (en) * | 2010-05-04 | 2011-02-02 | 周春利 | Internet-of-things intelligent transformer substation sensing interconnection system |
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| CN110766214A (en) * | 2019-10-17 | 2020-02-07 | 中南林业科技大学 | Real-time flood control monitoring system based on edge calculation and big data |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113391176A (en) * | 2021-07-29 | 2021-09-14 | 广东电网有限责任公司 | GIS partial discharge intelligent monitoring device based on edge calculation |
| CN113791176A (en) * | 2021-08-12 | 2021-12-14 | 深圳供电局有限公司 | Method and system for monitoring gas in switch cabinet |
| CN114217215A (en) * | 2021-11-24 | 2022-03-22 | 广东电网有限责任公司电力科学研究院 | GIS switch state monitoring method, device and system |
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