CN210199242U - POE network-based partial discharge state monitoring device - Google Patents
POE network-based partial discharge state monitoring device Download PDFInfo
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- CN210199242U CN210199242U CN201920940298.2U CN201920940298U CN210199242U CN 210199242 U CN210199242 U CN 210199242U CN 201920940298 U CN201920940298 U CN 201920940298U CN 210199242 U CN210199242 U CN 210199242U
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Abstract
The utility model relates to a partial discharge state monitoring devices based on POE network, including the monitoring center data server who is located power equipment state monitoring center and rather than the station end monitoring unit who sets up in the transformer substation control room of being connected, station end monitoring unit passes through the switch and connects a plurality of thing networking sensors or connect a plurality of subswitches through the switch, every the subswitches assembles a plurality of thing networking sensors of unit connection through data, adopts ripe POE switch, greatly reduces component design, cost of manufacture such as traditional partial discharge monitoring system superfrequency cable, data collection case, power, cable, empty division. The problem of general thing networking get the electricity difficult to sensor in gathering the processing mode on the spot to state monitoring sensor data is solved, adopt POE power supply technology, can be safe, reliable, stable provide the power for the sensor.
Description
Technical Field
The utility model relates to a partial discharge monitoring devices field specifically is a partial discharge state monitoring devices based on POE network.
Background
The partial discharge phenomenon is a sign of insulation degradation of the power equipment, partial discharge detection is carried out on the equipment, a discharge source is found early and accurately, accidents can be prevented, and safe and reliable operation of a power system is guaranteed. The partial discharge detection of the power equipment is already a research foundation for decades, and particularly, due to the fact that an ultrahigh frequency detection method, a high frequency current detection method and the like which are proposed in recent 30 years can implement live detection and online monitoring without power outage, the internal insulation defect of the power equipment can be detected, the insulation fault of the power equipment can be early warned, and the method is gradually applied and popularized in the partial discharge live detection and online monitoring of the power equipment.
In 2019, a national grid company definitely provides 'accelerating the construction of world first-class energy Internet enterprises', emphasizes that technologies such as mobile interconnection, artificial intelligence, Internet of things communication and the like are fully applied, universal interconnection and man-machine interaction in all links of a power system are achieved, a ubiquitous power grid with comprehensive sensing of states, efficient information processing and convenient and flexible application is created, and powerful data resource support is provided for safe and economic operation of the power grid, improvement of operation performance and service quality, and cultivation and development of strategic emerging industries. The comprehensive automation construction of the transformer substation is an important work in the transformation link of the intelligent power grid, and a plurality of problems exist, wherein the problems are particularly prominent in that the monitoring coverage of the equipment state is insufficient, the intelligent perception level of the equipment health degree is low, and the like.
In the traditional partial discharge online monitoring system, because the sensor and the signal processing module are independent components, ultrahigh frequency cables are required to be connected, and system components such as a power supply, a cable, an air switch and the like are more, the manufacturing cost is higher, the installation working hours are longer, and the system is suitable for being deployed in high-voltage-class or important transformer substations, such as transformer substations with voltage classes of 500kV and above and junction stations with voltage classes of 220kV, and the like, and the improvement of the monitoring coverage rate of equipment is severely restricted.
Meanwhile, the power grid industry also requires that the monitoring sensor has a data on-site processing function for the ubiquitous Internet of things of the state monitoring device, namely, the functions of signal sensing, data acquisition, data storage, data processing, data transmission and the like need to be integrated. This requires that the monitoring sensor can safely, reliably, stably get electricity to drive the stable, reliable work of sensor. At present, the electricity taking mode of the partial discharge monitoring sensor generally comprises solar energy electricity taking and commercial power electricity taking, wherein the reliability of the solar energy electricity taking and the implementation difficulty of the commercial power electricity taking are low.
Therefore, the low cost, the fast deployment and the high cost performance of the partial discharge on-line monitoring device are realized, the requirement of power grid operation on intelligent state maintenance is met, the equipment monitoring coverage rate is improved, and the problems to be solved in the industry are solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a partial discharge state monitoring devices based on POE network is provided to solve the defect that exists among the prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a POE network-based partial discharge state monitoring device comprises a monitoring center data server located in a power equipment state monitoring center and a station end monitoring unit connected with the monitoring center data server and arranged in a substation control room, wherein the station end monitoring unit is connected with a plurality of Internet of things sensors through a switch or connected with a plurality of sub-switches through a switch, each sub-switch is connected with a plurality of Internet of things sensors through a data aggregation unit, and the switch and the sub-switches are POE switches; the sensor of the Internet of things is connected with the switch through a network cable; the data collection unit is connected with the switch through a network cable; the switch and the station end monitoring unit are connected through a network cable; the station end monitoring unit is connected with the monitoring center data server through a power private network;
furthermore, the sensor of the internet of things is a partial discharge sensor, and the partial discharge sensor consists of a metal shell, a storage unit, a sensor interface, a battery module, a data processing module and an antenna panel; the storage unit is connected with the data processing module through a cable and used for storing monitoring data; the sensor interface is connected with the data processing module through a cable and is used for communication and power taking; the battery module is connected with the data processing module through a cable, and is used for storing electric energy and supplying power to the data processing module; the antenna panel is connected with the data processing module through a cable and used for sensing partial discharge signals of the equipment; the data processing module is used for collecting and processing partial discharge signals induced by the antenna panel, and storing and sending the processed signals through the connection with the storage unit and the sensor interface;
furthermore, the data processing module comprises data acquisition, amplification, filtering and detection units which are connected in sequence and used for processing the partial discharge signal acquired by the partial discharge detection sensor; the storage unit is in data communication with the switch through the Ethernet communication module connected with the storage unit;
the utility model has the advantages that: equipment low in manufacturing cost adopts ripe POE switch, greatly reduces components design, cost of manufacture such as traditional partial discharge monitoring system superfrequency cable, data collection case, power, cable, air switch. The problem of general thing networking get the electricity difficult to sensor in gathering the processing mode on the spot to state monitoring sensor data is solved, adopt POE power supply technology, can be safe, reliable, stable provide the power for the sensor.
Drawings
FIG. 1 is a structure diagram of the device system of the present invention
FIG. 2 is a schematic diagram of the connection between the switch and the sensor of the Internet of things
FIG. 3 is a schematic diagram of a sensor structure of the Internet of things;
the reference numerals are explained below:
1. the antenna comprises a metal shell, a storage unit, a sensor interface, a battery module, a data processing module and an antenna panel, wherein the metal shell 2 is used for storing data;
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, a POE network-based partial discharge state monitoring device includes a monitoring center data server located in a power equipment state monitoring center, and a station-side monitoring unit connected to the monitoring center data server and disposed in a substation control room, where the station-side monitoring unit is connected to a plurality of internet of things sensors through a switch or to a plurality of sub-switches through a switch, and each sub-switch is connected to a plurality of internet of things sensors through a data aggregation unit, where the switch and the sub-switches are POE switches; the sensor of the Internet of things is connected with the switch through a network cable; the data collection unit is connected with the switch through a network cable; the switch and the station end monitoring unit are connected through a network cable; the station end monitoring unit is connected with the monitoring center data server through a power private network;
in specific implementation, the sensor of the internet of things is arranged at a monitoring part of the equipment; the sub-switch is arranged on a local control cabinet near the equipment; the switch is arranged in a local control cabinet or a substation control room near the equipment; the station end monitoring unit is arranged in a substation control room; the monitoring center data server is installed in a power equipment state monitoring center of the client. The sensor of the internet of things is connected with the switch through a network cable. The data collecting unit and the exchanger are connected through a network cable. The switch and the station end monitoring unit are connected through a network cable. And the station end monitoring unit is connected with the monitoring center data server through a power private network. The connection mode of the sensors and the switch can adopt the connection mode of the sensor-subswitch-switch of the internet of things or the sensor-switch of the internet of things
The device adopts POE (Power Over Ethernet) technology based on Ethernet power supply to realize data transmission and power supply of the sensor of the partial discharge Internet of things.
Specifically, the thing networking partial discharge detection sensor of device installs and waits to examine the position in power equipment, is responsible for gathering and sending power equipment partial discharge signal. The partial discharge sensor comprises a partial discharge detection sensor, a data processing module, a storage unit, an Ethernet communication module, a battery module and the like. The partial discharge detection sensor is used for acquiring partial discharge signals; the data processing module is used for processing the partial discharge signals acquired by the partial discharge detection sensor and comprises units for data acquisition, amplification, filtering, detection and the like; the storage unit is used for storing the acquired ultrahigh frequency signals in situ; the Ethernet communication module is used for carrying out data communication with the switch; the battery module is used for supplying power to each module of the sensor of the Internet of things and providing power grid power frequency synchronous signals for the data processing module.
The connection mode between the sensor of the Internet of things and the switch of the device is flexible, and the sensor is connected with the sub-switch firstly and then is connected with the switch; the other is that the sensors are directly connected to the switch. In the implementation process, the selection can be carried out according to the convenience degree of actual construction.
The sub-switch of the device is used for connecting the Internet of things sensor within a certain range, and is connected with the Internet of things sensor through a network cable. The sub-switch transmits data signals with the sensors through the network cable and provides power for the sensors through the network cable.
The main switch of the device is used for connecting a sub-switch or an Internet of things sensor. When the local discharge monitoring system is connected with the sub-switch, the local discharge monitoring system is responsible for collecting partial discharge data uploaded by the sub-switch. When it is connected with thing networking sensor, it carries out data signal transmission through net twine and sensor to provide the power for the sensor through the net twine.
The station end monitoring unit of the device is deployed in a substation control room and used for connecting and managing the sensors of the Internet of things, collecting and checking monitoring data, changing the settings of the sensors and simultaneously transmitting the monitoring data to a monitoring center data server through a power private network.
A monitoring center data server of the device is deployed in a user headquarter, and a large-scale relational database is adopted to store data sent by monitoring units at all transformer substation ends.
The sensor of the Internet of things is composed of a metal shell, a storage unit, a sensor interface, a battery module, a data processing module and an antenna panel. The storage unit is connected with the data processing module through a cable and used for storing monitoring data. The sensor interface is connected with the data processing module through a cable and is used for communication and power taking. The battery module is connected with the data processing module through a cable, and is used for storing electric energy and supplying power to the data processing module. The antenna panel is connected with the data processing module through a cable and used for sensing partial discharge signals of the equipment. The data processing module is used for collecting and processing partial discharge signals induced by the antenna panel, and the processed signals are stored and sent through the connection with the storage unit and the sensor interface.
Figure 1 shows a system block diagram of the apparatus. In the figure, an internet of things sensor is arranged at an equipment monitoring part; the sub-switch is arranged on a local control cabinet near the equipment; the switch is arranged in a local control cabinet or a substation control room near the equipment; the station end monitoring unit is arranged in a substation control room; the monitoring center data server is installed in a power equipment state monitoring center of the client. The sensor of the internet of things is connected with the switch through a network cable. The data collecting unit and the exchanger are connected through a network cable. The switch and the station end monitoring unit are connected through a network cable. And the station end monitoring unit is connected with the monitoring center data server through a power private network. The connection mode of the sensor-sub switch-switch or the sensor-switch of the internet of things can be adopted for the connection of the sensor and the switch.
Fig. 2 is a schematic diagram of the connection of the switch to the sensor. In the figure, the switch and the sensor of the internet of things are connected through a network cable. The switch carries out data signal transmission with the sensor through the net twine to provide the power for the sensor through the net twine.
Fig. 3 is a schematic diagram of a sensor of the internet of things. The sensor is composed of a metal shell 1, a storage unit 2, a sensor interface 3, a battery module 4, a data processing module 5 and an antenna panel 6. The storage unit 2 is connected with the data processing module 5 through a cable and used for storing monitoring data. The sensor interface 3 is connected with the data processing module 5 through a cable and is used for communication and power taking. The battery module 4 is connected with the data processing module 5 through a cable, and is used for storing electric energy and supplying power to the data processing module 5. The antenna panel 6 is connected with the data processing module 5 through a cable and used for sensing a partial discharge signal of the equipment. The data processing module 5 is used for collecting and processing the partial discharge signal induced by the antenna panel 6, and the processed signal is stored and transmitted by being connected with the storage unit 2 and the sensor interface 3.
The utility model provides a pair of partial discharge intelligent state monitoring devices based on POE network can effectively reduce the manufacturing cost of device and arrange man-hour, high-efficient, reliable acquisition power equipment state. Its advantages mainly include:
1. equipment low in manufacturing cost adopts ripe POE switch, greatly reduces components design, cost of manufacture such as traditional partial discharge monitoring system superfrequency cable, data collection case, power, cable, air switch.
2. The construction period of traditional partial discharge on-line monitoring system is long, and especially superfrequency cable need the ditching to be laid, and the cable is coarse and heavy, and the construction degree of difficulty is great, the utility model discloses a net twine carries out data transmission, and it is convenient to lay wire.
3. The problem of general thing networking get the electricity difficult to sensor in gathering the processing mode on the spot to state monitoring sensor data is solved, adopt POE power supply technology, can be safe, reliable, stable provide the power for the sensor.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (3)
1. The utility model provides a partial discharge state monitoring devices based on POE network which characterized in that: the system comprises a monitoring center data server positioned in a power equipment state monitoring center and a station end monitoring unit connected with the monitoring center data server and arranged in a substation control room, wherein the station end monitoring unit is connected with a plurality of Internet of things sensors through a switch or connected with a plurality of sub-switches through a switch, each sub-switch is connected with a plurality of Internet of things sensors through a data aggregation unit, and the switch and the sub-switches are POE switches; the sensor of the Internet of things is connected with the switch through a network cable; the data collection unit is connected with the switch through a network cable; the switch and the station end monitoring unit are connected through a network cable; and the station end monitoring unit is connected with the monitoring center data server through a power private network.
2. The device for monitoring the partial discharge state based on the POE network, according to claim 1, wherein: the sensor of the internet of things is a partial discharge sensor, and the partial discharge sensor consists of a metal shell, a storage unit, a sensor interface, a battery module, a data processing module and an antenna panel; the storage unit is connected with the data processing module through a cable and used for storing monitoring data; the sensor interface is connected with the data processing module through a cable and is used for communication and power taking; the battery module is connected with the data processing module through a cable, and is used for storing electric energy and supplying power to the data processing module; the antenna panel is connected with the data processing module through a cable and used for sensing partial discharge signals of the equipment; the data processing module is used for collecting and processing partial discharge signals induced by the antenna panel, and the processed signals are stored and sent through the connection with the storage unit and the sensor interface.
3. The device according to claim 2, wherein the device is configured to monitor the partial discharge state of the POE network, and comprises: the data processing module comprises data acquisition, amplification, filtering and detection units which are connected in sequence and is used for processing the partial discharge signals acquired by the partial discharge detection sensor; the storage unit is in data communication with the switch through the Ethernet communication module connected with the storage unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920940298.2U CN210199242U (en) | 2019-06-20 | 2019-06-20 | POE network-based partial discharge state monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920940298.2U CN210199242U (en) | 2019-06-20 | 2019-06-20 | POE network-based partial discharge state monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN210199242U true CN210199242U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920940298.2U Active CN210199242U (en) | 2019-06-20 | 2019-06-20 | POE network-based partial discharge state monitoring device |
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| CN (1) | CN210199242U (en) |
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