CN209690449U - Local discharge on-line monitoring device and system based on ubiquitous electric power Internet of Things - Google Patents
Local discharge on-line monitoring device and system based on ubiquitous electric power Internet of Things Download PDFInfo
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- CN209690449U CN209690449U CN201920209886.9U CN201920209886U CN209690449U CN 209690449 U CN209690449 U CN 209690449U CN 201920209886 U CN201920209886 U CN 201920209886U CN 209690449 U CN209690449 U CN 209690449U
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 52
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 21
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims description 41
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
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- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 230000003449 preventive effect Effects 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of local discharge on-line monitoring device and system based on ubiquitous electric power Internet of Things, local discharge on-line monitoring device includes shell and the magnet that is arranged on shell；The enclosure interior include CPU module, LORA communication module, ultrasonic sensor, radio wave sensor and lithium battery；The ultrasonic sensor, radio wave sensor be connected with the CPU module respectively to send the high-tension switch cabinet local discharge signal that detects；The CPU module is connected with the LORA communication module externally to be communicated；The lithium battery is connected to power with the CPU module；The local discharge on-line monitoring device is adsorbed on the shell of the high-tension switch cabinet by the magnet.The utility model is able to confirm that whether high-voltage switch gear cabinet equipment is in normal operating condition by the unified management to local discharge on-line monitoring device, finds the weak link in its insulation in time, effectively prevents accident, ensure the full reliability service of electric system.
Description
Technical field
The utility model relates to power equipment monitoring and internet of things field, are specifically designed a kind of based on ubiquitous electric power object
The local discharge on-line monitoring device and system of networking.
Background technique
High-tension switch cabinet is using extremely extensive and most quantity switchgears.Due in design, manufacture, installation and operation
The problem of maintenance etc. various degrees, thus accident rate is relatively high, such as in the switchgear accident of many properties
Insulation fault mostly occurs in 10 kilovolts and above, caused by consequence it is also very serious.Especially trolley type switch cabinet, absolutely
The phenomenon that edge accident rate is higher, and often one accident occurs, brings disaster to adjacent cabinet is more prominent.
Shelf depreciation is one of dielectric electrical discharge phenomenon, and this electric discharge is only limited in one in measured medium
Bridge the insulation between conductor locally, the neighbouring of conductor may occur or may not betide for this electric discharge.Electric power
It is generally existing in high-voltage isulation ask that shelf depreciation occurs under the action of strong electrical field for certain weak parts in apparatus insulated
Topic.Although shelf depreciation will not generally cause the penetrability breakdown of insulation, can leading to dielectric, (especially Organic Electricity is situated between
Matter) local damage.If shelf depreciation long-term existence, it will lead to insulation degradation under certain condition and even puncture.Electric power is set
It is standby to carry out partial discharge test, it is not only able to understand the insulation status of equipment, moreover it is possible to find in time many in relation to manufacturing and installing
The problem of aspect, the reason of determining insulation fault and its severity.Therefore, carrying out Partial Discharge Detection to power equipment is electricity
Power device fabrication and a running important preventive trial.
It is existing that the monitoring and maintenance method that Partial Discharge Detection generally uses manual intervention is carried out to switchgear, it needs to pacify
The problem of row personnel carrying device goes site inspection unknown uncertain presence or absence, this method poor reliability, and detect
Cost is also relatively high.Also occur some on-line monitoring equipments at present, but this monitoring is often one-to-one, i.e., one inspection
Measurement equipment needs a host to be monitored, and this aspect leads to higher cost, and another aspect space hold is big, furthermore also unfavorable
In centralized management and overall arrangement.
Therefore, there is an urgent need to carry out real-time online and unified monitoring to switchgear operation conditions, according to high-tension switch cabinet
Operating status and insulation degradation, determine repair time and measure, reduce the generation of power off time and accident, improve electricity
The security reliability and the degree of automation of Force system operation.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, propose a kind of office based on ubiquitous electric power Internet of Things
Portion's On-line Discharge monitoring device and system are able to confirm that height presses off by the unified management to local discharge on-line monitoring device
It closes whether cabinet equipment is in normal operating condition, finds the weak link in its insulation in time, effectively prevent accident, ensure electric power
The full reliability service of system.
The utility model adopts the following technical solution:
On the one hand, a kind of local discharge on-line monitoring device based on ubiquitous electric power Internet of Things of the utility model, comprising: shell
Body and the magnet being arranged on shell；The enclosure interior include CPU module, LORA communication module, ultrasonic sensor, it is electric
Wave sensor and lithium battery；The ultrasonic sensor, radio wave sensor be connected respectively with the CPU module with send detection
The high-tension switch cabinet local discharge signal arrived；The CPU module is connected with the LORA communication module externally to be communicated；Institute
Lithium battery is stated to be connected with the CPU module to power；The local discharge on-line monitoring device is adsorbed on institute by the magnet
It states on the shell of high-tension switch cabinet.
Preferably, the local discharge on-line monitoring device further includes the status indicator lamp that the hull outside is arranged in；
The status indicator lamp is connected to indicate the working condition of the CPU with the CPU module.
Preferably, the local discharge on-line monitoring device further includes the input button that the hull outside is arranged in；Institute
Input button is stated to be connected with the CPU module to control the local discharge on-line monitoring device and start or stop.
Preferably, the local discharge on-line monitoring device further includes the battery capacity indication lamp that the hull outside is arranged in；
The battery capacity indication lamp is connected to indicate the remaining capacity of the lithium battery with the CPU module.
Preferably, the magnet is mounted on the hull outside back or inside back.
Preferably, the CPU module uses the working mechanism of timing wake-up；The CPU module described in the preset time is automatic
It wakes up.
Second aspect, a kind of partial discharge monitoring system based on ubiquitous electric power Internet of Things of the utility model, including
The local discharge on-line monitoring device further includes switchgear house state monitoring apparatus and server；The shelf depreciation is online
Monitoring device is connected to send high-tension switch cabinet part with the switchgear house state monitoring apparatus by the LORA communication module
The relevant information and lithium battery remaining capacity of discharge signal；The switchgear house state monitoring apparatus is communicated with the server
Connect the relevant information and lithium battery remaining capacity to transmit and receive；The relevant information includes high-tension switch cabinet part
Maximum value, average value and the discharge time of discharge signal；The discharge time is the number in preset time more than preset value.
Preferably, the communication connection mode of the switchgear house state monitoring apparatus and the server include: cable network,
One of wireless network and serial ports are a variety of.
Preferably, the information that the local discharge on-line monitoring device is sent further includes the local discharge on-line monitoring device
Unique identification；The unique identification includes IP address or device identification.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) local discharge on-line monitoring device based on ubiquitous electric power Internet of Things of the utility model, is passed using ultrasonic wave
Sensor and ground radio wave sensor, which are combined, carries out joint-detection to the shelf depreciation of switchgear, can judge that shelf depreciation is strong
It is weak, it can also detect the transient voltage of shelf depreciation, detection is accurate comprehensive；
(2) local discharge on-line monitoring device based on ubiquitous electric power Internet of Things of the utility model supports not power down peace
Dress is directly adsorbed on switchgear surface with magnet, and when installation does not influence the normal operation of power distribution room, using battery power supply without outer
Power supply is connect, built-in LORA communication module is not necessarily to external cable；
(3) local discharge on-line monitoring device based on ubiquitous electric power Internet of Things of the utility model, CPU module is using fixed
When wake-up mechanism, other times in a dormant state, can save power supply, increase cruise duration；
(4) the LORA communication module of the utility model has the spies such as covering is wide, connection is more, rate is low, at low cost, power consumption is few
Point is suitble to the application of low-power consumption Internet of Things；
(5) the partial discharge monitoring system based on ubiquitous electric power Internet of Things of the utility model, including shelf depreciation
On-Line Monitor Device, switchgear house state monitoring apparatus and server；Local discharge on-line monitoring device passes through LORA communication mode
It is carried out wireless communication with switchgear house state monitoring apparatus, the data content of monitoring includes ultrasonic sensor and ground radio wave sensor
The remaining capacity of the partial discharge maximum value, partial discharge average value, discharge time and the lithium battery that monitor respectively, switchgear house status monitoring
Device passes through serial ports, wired ethernet or 4G wireless mode again and above- mentioned information is sent to server (Cloud Server and/or station end
Server)；The unified monitoring and management to multiple high-tension switch cabinets can be realized by server, while realizing the monitoring of data
The storage of data finds the weak ring in its insulation to confirm whether high-voltage switch gear cabinet equipment is in normal operating condition in time
Section, effectively prevents accident, and reduces unnecessary manpower and material resources waste, ensures the full reliability service of electric system.
The above description is merely an outline of the technical solution of the present invention, in order to more clearly understand the utility model
Technological means, so as to be implemented in accordance with the contents of the specification, and in order to allow the utility model above and other purpose,
Feature and advantage can be more clearly understood, and be exemplified below specific embodiment of the present utility model.
According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more
Add the above-mentioned and other purposes, advantages and features of clear the utility model.
Detailed description of the invention
Fig. 1 is the structural block diagram of the local discharge on-line monitoring device based on ubiquitous electric power Internet of Things of the utility model；
Fig. 2 is the structural block diagram of the partial discharge monitoring system based on ubiquitous electric power Internet of Things of the utility model.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
It is shown in Figure 1, on the one hand, a kind of partial discharge monitoring based on ubiquitous electric power Internet of Things of the utility model
Device, comprising: shell and the magnet being arranged on shell；The enclosure interior include CPU module 10, LORA communication module 11,
Ultrasonic sensor 12, radio wave sensor 13 and lithium battery 14；The ultrasonic sensor 12, radio wave sensor 13 distinguish
It is connected with the CPU module 10 to send the high-tension switch cabinet local discharge signal detected；The CPU module 10 with it is described
LORA communication module 11 is connected externally to be communicated；The lithium battery 14 is connected to power with the CPU module 10；The office
Portion's On-line Discharge monitoring device 1 is adsorbed on the shell of the high-tension switch cabinet by the magnet.
Specifically, shelf depreciation is a kind of quick charge release or transition process, the electric field around guiding discharge point is answered
Power, mechanical stress and particle power out-of-balance condition and generate change in oscillation process.
The quick oscillation of mechanical stress and particle power will lead to the vibration of point of discharge surrounding medium, so that acoustic signals are generated,
By ultrasonic sensor 12, (acoustic signals are converted to electric signal, alternatively referred to as piezoelectric sensing by the probe sensor of ultrasonic wave
Device) reach measurement purpose.If there is shelf depreciation generates, the output amplitude of the ultrasonic sensor 12 changes, passes through
Variation size may determine that partial discharge intensity.
In the present embodiment, the parameter of the use of ultrasonic sensor 12 are as follows: AE sensor parameters；Centre frequency:
40kHz；Sensor peak sensitivity: 117dBV；Resolution ratio: 1dB.
In addition, generating the effect of skin effect when shelf depreciation occurs, junction is disconnected or insulate in metal, current wave turns
Move to outer surface；Electromagnetic wave rising edge encounters outer metallic surface, generates transient state voltage-to-ground (Transient Earth
Voltage).Ground electric wave amplitude is related with the attenuation degree of discharge capacity and route of transmission, to depend on spark location, equipment
Internal structure and openings of sizes are related.Using capacitive ground radio wave sensor 13, electric wave is inductively measured to detect over the ground
Transient state voltage-to-ground when shelf depreciation.
In the present embodiment, the parameter of the use of described ground radio wave sensor 13 are as follows: detection bandwidth: 1~100MHz；Detect model
It encloses: 0~60dB；Precision :+- 1dB.
The local discharge on-line monitoring device 1 further includes the status indicator lamp 15 that the hull outside is arranged in；It is described
Status indicator lamp 15 is connected with the CPU module 10 to indicate the working condition of the CPU.Specifically, the CPU module 10 is adopted
With the working mechanism of timing wake-up；The CPU module 10 described in the preset time automatically wakes up.When the CPU module 10 is waken up,
The local discharge signal that the ultrasonic sensor 12 and ground radio wave sensor 13 upload is handled and is externally sent, it is described
When CPU module 10 enters dormant state, without processing.In the present embodiment, when the CPU module 10 is waken up, the state
Indicator light 15 is bright, and when the CPU module 10 is in suspend mode, the indicator light extinguishes.
The local discharge on-line monitoring device 1 further includes the input button that the hull outside is arranged in；The input
Button is connected to control the local discharge on-line monitoring device 1 and start or stop with the CPU module 10.In the present embodiment,
The input button includes two start buttons 16 and a stop button 17.
The local discharge on-line monitoring device 1 further includes the battery capacity indication lamp 18 that the hull outside is arranged in；It is described
Battery capacity indication lamp 18 is connected to indicate the remaining capacity of the lithium battery 14 with the CPU module 10.Specifically, the electricity refers to
Show lamp 18 may include it is multiple, to indicate the different remaining capacity of lithium battery 14.When such as remaining capacity 80%, a battery capacity indication
Lamp 18 is bright；When remaining capacity 50%, another battery capacity indication lamp 18 is bright, etc., it is easily observed so as at the scene surplus
The value of remaining electricity.
Specifically, the magnet may be mounted at the hull outside and integrated with the shell, specific location can be with
It is back any position.Certainly, the magnet can also be mounted on the case inside and, specific position integrated with the shell
It sets and is also possible to back any position.
In the present embodiment, the lithium battery 14 uses 14 groups of rechargeable lithium battary.
Shown in Figure 2, a kind of second aspect, shelf depreciation based on ubiquitous electric power Internet of Things of the utility model is supervised online
Examining system further includes switchgear house state monitoring apparatus 2 and server including the local discharge on-line monitoring device 11；Institute
State local discharge on-line monitoring device 1 be connected by the LORA communication module 11 with the switchgear house state monitoring apparatus 2 with
Send 14 remaining capacity of relevant information and lithium battery of high-tension switch cabinet local discharge signal；The switchgear house state monitoring apparatus
2 are communicatively coupled 14 remaining capacity of the relevant information and lithium battery to transmit and receive with the server.
Specifically, the server includes station end server 3 and/or Cloud Server 4.
It should be noted that a switchgear house state monitoring apparatus 2 and the how many partial discharge monitorings
Device 1 is connected to be configured according to specific needs, station end server 3 or Cloud Server 4 and the how many distribution
Room state monitoring apparatus 2 is connected also to be configured according to specific needs.
The relevant information includes maximum value, average value and the discharge time of high-tension switch cabinet local discharge signal.Specifically
, maximum value, average value and the discharge time of high-tension switch cabinet local discharge signal include being detected according to ultrasonic sensor 12
Maximum value, average value and the discharge time of the calculated high-tension switch cabinet local discharge signal of the local discharge signal arrived, are also wrapped
It includes the maximum value for the calculated high-tension switch cabinet local discharge signal of local discharge signal that ground radio wave sensor 13 detects, put down
Mean value and discharge time.When specific implementation, the two is independently calculated.
The partial discharge maximum value, which refers to, exports the result that maximum point calculates in monitoring time segment signal.The partial discharge is flat
Mean value refers to the result come out in the mean value calculation of monitoring time segment signal output.The discharge time refers in monitoring time section
More than the number of specified threshold.The remaining capacity is the result calculated according to voltage-capacity curve.
The information that the local discharge on-line monitoring device 1 is sent further include the local discharge on-line monitoring device 1 only
One mark；The unique identification includes IP address or device identification.It, can when in this case carrying out unified monitoring on the server
Distinguishing is information which platform local discharge on-line monitoring device 1 is sent, to perform corresponding processing.
The communication connection mode of the switchgear house state monitoring apparatus 2 and the server includes: cable network, wireless network
One of network and serial ports are a variety of.For stand end server 3, due to distance be not it is too far, can according to circumstances using string
Port transmission or Ethernet transmission.For Cloud Server 4, wireless network transmissions can be used.
Specifically, 100 meters of > of LORA wireless networking distance；Switchgear house state monitoring apparatus 2 supports modbus, 104 communications
Specification.2 downlink of switchgear house state monitoring apparatus is communicated with local discharge on-line monitoring device 1 by LORA；Uplink and server
By GPRS wireless network, Ethernet or serial communication, i.e., communicated with server by modbus or 104 specifications.
Specifically, a kind of concrete methods of realizing of the partial discharge monitoring system based on ubiquitous electric power Internet of Things is such as
Under:
The local discharge on-line monitoring device 1 calculates high pressure according to the high-tension switch cabinet local discharge signal detected
The relevant information of partial discharge of switchgear signal；And by the LORA communication module 11 by the relevant information and lithium battery 14
Remaining capacity is sent to switchgear house state monitoring apparatus 2；The relevant information include high-tension switch cabinet local discharge signal most
Big value, average value and discharge time；The discharge time is the number in preset time more than preset value；
The switchgear house state monitoring apparatus 2 passes through the correlation that cable network, wireless network or serial ports will receive
Information and 14 remaining capacity of lithium battery are sent to server；The server includes station end server 3 and/or Cloud Server 4；
The server receives the relevant information and 14 remaining capacity of lithium battery and is stored and/or shown.
The above is only the specific embodiments of the present invention, but the design concept of the present invention is not limited thereto,
All non-essential modifications to the present invention made by this concept should belong to the row for invading scope of protection of the utility model
For.
Claims (9)
1. a kind of local discharge on-line monitoring device based on ubiquitous electric power Internet of Things characterized by comprising shell and setting
Magnet on shell；The enclosure interior include CPU module, LORA communication module, ultrasonic sensor, radio wave sensor
And lithium battery；The ultrasonic sensor, radio wave sensor be connected with the CPU module respectively to send the high pressure that detects
Partial discharge of switchgear signal；The CPU module is connected with the LORA communication module externally to be communicated；The lithium battery
It is connected with the CPU module to power；The local discharge on-line monitoring device is adsorbed on the height by the magnet and presses off
On the shell for closing cabinet.
2. the local discharge on-line monitoring device according to claim 1 based on ubiquitous electric power Internet of Things, which is characterized in that
The local discharge on-line monitoring device further includes the status indicator lamp that the hull outside is arranged in；The status indicator lamp with
The CPU module is connected to indicate the working condition of the CPU.
3. the local discharge on-line monitoring device according to claim 1 based on ubiquitous electric power Internet of Things, which is characterized in that
The local discharge on-line monitoring device further includes the input button that the hull outside is arranged in；The input button with it is described
CPU module is connected to be started or stoped with controlling the local discharge on-line monitoring device.
4. the local discharge on-line monitoring device according to claim 1 based on ubiquitous electric power Internet of Things, which is characterized in that
The local discharge on-line monitoring device further includes the battery capacity indication lamp that the hull outside is arranged in；The battery capacity indication lamp with
The CPU module is connected to indicate the remaining capacity of the lithium battery.
5. the local discharge on-line monitoring device according to claim 1 based on ubiquitous electric power Internet of Things, which is characterized in that
The magnet is mounted on the hull outside back or inside back.
6. the local discharge on-line monitoring device according to claim 1 based on ubiquitous electric power Internet of Things, which is characterized in that
The CPU module uses the working mechanism of timing wake-up；The CPU module described in the preset time automatically wakes up.
7. a kind of partial discharge monitoring system based on ubiquitous electric power Internet of Things, which is characterized in that including such as claim 1
It further include switchgear house state monitoring apparatus and server to local discharge on-line monitoring device described in any one of 6；It is described
Local discharge on-line monitoring device is connected by the LORA communication module with the switchgear house state monitoring apparatus to send height
Compress switch the relevant information and lithium battery remaining capacity of cabinet local discharge signal；The switchgear house state monitoring apparatus and the clothes
Business device is communicatively coupled the relevant information and lithium battery remaining capacity to transmit and receive；The relevant information includes height
Compress switch maximum value, average value and the discharge time of cabinet local discharge signal.
8. the partial discharge monitoring system according to claim 7 based on ubiquitous electric power Internet of Things, which is characterized in that
The communication connection mode of the switchgear house state monitoring apparatus and the server includes: cable network, wireless network and serial ports
One of or it is a variety of.
9. the partial discharge monitoring system according to claim 7 based on ubiquitous electric power Internet of Things, which is characterized in that
The information that the local discharge on-line monitoring device is sent further includes the unique identification of the local discharge on-line monitoring device；It is described
Unique identification includes IP address or device identification.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920209886.9U CN209690449U (en) | 2019-02-19 | 2019-02-19 | Local discharge on-line monitoring device and system based on ubiquitous electric power Internet of Things |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920209886.9U CN209690449U (en) | 2019-02-19 | 2019-02-19 | Local discharge on-line monitoring device and system based on ubiquitous electric power Internet of Things |
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| CN209690449U true CN209690449U (en) | 2019-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109828189A (en) * | 2019-02-19 | 2019-05-31 | 福建聚实新能源科技有限公司 | Partial discharge on-Line Monitor Device, system and method based on ubiquitous electric power Internet of Things |
-
2019
- 2019-02-19 CN CN201920209886.9U patent/CN209690449U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109828189A (en) * | 2019-02-19 | 2019-05-31 | 福建聚实新能源科技有限公司 | Partial discharge on-Line Monitor Device, system and method based on ubiquitous electric power Internet of Things |
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