CN114646345A - Digital twin monitoring device and monitoring method for looped network room - Google Patents
Digital twin monitoring device and monitoring method for looped network room Download PDFInfo
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- CN114646345A CN114646345A CN202210167856.2A CN202210167856A CN114646345A CN 114646345 A CN114646345 A CN 114646345A CN 202210167856 A CN202210167856 A CN 202210167856A CN 114646345 A CN114646345 A CN 114646345A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 142
- 238000012806 monitoring device Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000002159 abnormal effect Effects 0.000 claims abstract description 17
- 230000007613 environmental effect Effects 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 230000011664 signaling Effects 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 18
- 230000006698 induction Effects 0.000 claims description 11
- 238000012216 screening Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910018503 SF6 Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 5
- 229960000909 sulfur hexafluoride Drugs 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention discloses a digital twin monitoring device and a monitoring method for a ring network room, which comprises a partial discharge monitoring unit, a plurality of sensor units, an edge calculating unit, a temperature control unit and a monitoring host; the partial discharge monitoring unit and the temperature control unit are connected with the monitoring host, the output of the sensor unit is connected with the input of the edge calculation unit, the output of the edge calculation unit is connected with the monitoring host, and the output of the monitoring unit is connected with the environment monitoring host through the switch; the partial discharge detection unit detects a partial discharge signal of the looped network indoor equipment; the edge calculation unit detects abnormal information monitored by the looped network room sensor; the temperature control unit detects the temperature of the ring network chamber and provides compensation for the temperature of the ring network chamber when the temperature of the ring network chamber exceeds a preset limit value. The sensing of indoor environmental information, the sensing of equipment state and the sensing of security protection information of the looped network is realized through the combination of the environmental sensor, the security protection sensor and the electric sensor, the safe operation and the reliable power supply of the equipment are ensured, meanwhile, the traditional operation and maintenance mode is improved, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of power distribution networks, in particular to a ring network room digital twin monitoring device and a monitoring method.
Background
In recent years, with rapid economic development, the supply of high-quality electric power has been increasingly influenced by the continuous increase in power consumption, and in a 10KV power distribution network, even a power failure for a short time may cause a significant economic loss. The urban power grid has the remarkable characteristics that load points are distributed more densely, and the load capacity of each point is larger. In addition, the urban land is expensive, the space is limited, and the requirement on environmental protection is high. Therefore, a ring-type power supply network mainly based on underground cables, called a ring network for short, is the first choice of the urban power grid structure at present.
In order to ensure the reliable work of the power distribution station, the type of the generated looped network fault must be monitored in time and accurately positioned, and necessary operation is carried out on the switch device to prevent serious accidents. However, because the ring network faults are various, the existing monitoring device has many defects: such as inaccurate positioning, untimely operation of operators, and incapability of better matching of switching devices. The problem that the power distribution ring network cannot work for a long time due to delay of the power distribution ring network is caused, and huge economic loss is caused to people.
Disclosure of Invention
The invention provides a device and a method for monitoring a digital twin in a ring network room, which can quickly screen an abnormal temperature rise loop in advance to reduce fault expansion, and aims to overcome the defects of a ring network room fault detection device in the prior art and solve the problem that the fault cannot be timely positioned.
In order to achieve the purpose, the invention adopts the following technical scheme:
a digital twin monitoring device for a looped network room comprises a partial discharge monitoring unit, a plurality of sensor units, an edge calculating unit, a temperature control unit and a monitoring host; the partial discharge monitoring unit and the temperature control unit are connected with a monitoring host, the output of the sensor unit is connected with the input of the edge calculation unit, the output of the edge calculation unit is connected with the monitoring host, and the output of the monitoring unit is connected with the environment monitoring host through a switch;
the partial discharge detection unit detects a partial discharge signal of the looped network indoor equipment;
the edge calculation unit detects abnormal information monitored by the looped network room sensor;
the temperature control unit detects the temperature of the ring network chamber and provides compensation for the temperature of the ring network chamber when the temperature of the ring network chamber exceeds a preset limit value. The partial discharge monitoring unit realizes partial discharge signal detection through a capacitive voltage divider in the equipment cabinet. The preventive maintenance and remote real-time equipment management of the ring network room distribution network equipment are realized through partial discharge online monitoring, temperature online monitoring and edge calculation only, so that the operation state of the distribution network is sensed, and the operation and maintenance efficiency is improved.
Preferably, the partial discharge monitoring unit comprises a remote signaling monitoring unit and a remote sensing monitoring unit, and the remote signaling monitoring unit and the remote sensing monitoring unit are in communication connection with the monitoring host through a DTU (data transfer unit);
the remote signaling monitoring unit is in communication connection with the ring main unit and acquires monitoring signals of the ring main unit;
the remote sensing monitoring unit is in communication connection with the ring main unit and collects sensing signals of the ring main unit.
The detection signals comprise a sensor state signal, a switch position signal, a ground knife position and an overcurrent signal of the ring main unit; the induction signals comprise sensor state signals, switch position signals, ground knife positions and overcurrent signals; the abnormal loop can be screened out quickly in advance, and passive events caused by fault amplification are greatly reduced.
Preferably, the sensor unit comprises an environment sensor, a security sensor and an electrical sensor; the environmental sensor monitors environmental signals and is connected with monitoring host DTU communication, the security protection sensor detects security protection signals and is connected with monitoring host DTU communication, the electrical sensor detects electrical equipment signals and is connected with monitoring host DTU communication.
The environment sensor comprises a temperature and humidity collector, a gas sensor, a water level sensor, a lamp state sensor, a fan state sensor, an air conditioner state sensor, a dehumidifier state sensor and a water pump state sensor; the security sensor comprises a fire extinguisher air pressure sensor, an infrared sensor, a smoke sensor and an open fire sensor; the temperature and humidity sensor is provided with an LCD display screen, on-site environment temperature and humidity parameters are accurately displayed on the LCD, and the temperature and humidity sensor is installed in the ring network chamber; the gas sensor comprises a sulfur hexafluoride and oxygen sensor and is mainly used for monitoring SF6 gas leakage condition and oxygen concentration in air in the environment of the ring network indoor combined electrical equipment room; and the sensing of indoor environmental information, equipment state and security information of the ring network is realized.
Preferably, the remote signaling monitoring unit comprises a plurality of temperature sensors, and the plurality of temperature sensors are arranged inside the ring main unit. And comparing feedback values of a plurality of temperature sensors of the ring main unit with the ring main unit temperature detected by the temperature control unit, screening abnormal temperature signals, and alarming the abnormal temperature signals through sound and light.
A looped network room digital twin monitoring device adopts any one of the looped network room digital twin monitoring devices.
Preferably, the method comprises the following steps: a remote signaling monitoring unit of the partial discharge monitoring unit detects a monitoring signal of the ring main unit and transmits the monitoring signal of the ring main unit to a monitoring host through a DTU channel; a remote sensing monitoring unit of the partial discharge monitoring unit detects an induction signal of the ring main unit and transmits the induction signal of the ring main unit to the monitoring host through a DTU channel;
and comparing feedback values of a plurality of temperature sensors of the ring main unit with the ring main unit temperature detected by the temperature control unit, screening abnormal temperature signals, and alarming the abnormal temperature signals through sound and light.
Preferably, the monitoring signals of the remote signaling monitoring unit of the partial discharge monitoring unit for detecting the ring main unit include a voltage signal, a phase current signal, a cable head temperature signal, an in-cabinet humidity signal and an in-cabinet temperature signal of the partial discharge monitoring unit for detecting the ring main unit.
Preferably, the sensing signal of the remote sensing monitoring unit of the partial discharge monitoring unit for detecting the ring main unit includes: a remote signaling monitoring unit of the partial discharge monitoring unit detects a sensor state signal, a switch position signal, a ground switch position and an overcurrent signal of the ring main unit; and judging whether the induction signal accords with a preset normal state or not through the edge calculation unit, and if not, transmitting an alarm signal to the monitoring host.
Therefore, the invention has the following beneficial effects: the sensing of indoor environmental information, the sensing of equipment state and the sensing of security and protection information of the looped network are realized through the combination of the environmental sensor, the security and protection sensor and the electric sensor, the safe operation and the reliable power supply of the equipment are ensured, meanwhile, the traditional operation and maintenance mode is improved, the working efficiency is improved, and the labor cost is reduced.
Drawings
Fig. 1 is a block diagram of a ring network room monitoring apparatus according to an embodiment of the present invention.
In the figure: 1. the device comprises a partial discharge monitoring unit 2, a sensor unit 3, an edge calculating unit 4, a temperature control unit 5, a monitoring host 6, a switch 7 and a monitoring unit.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Example (b):
as shown in fig. 1, in the digital twin monitoring device for the ring network room of the Jiaxing south lake school, the ring network room of the south lake school is used as a power supply of the lake center island, the ring network room of the ring network room adopts a reinforced double-ring network structure, and a 6-loop 10KV line is used for power supply. The digital twin monitoring device of the ring network room comprises a partial discharge monitoring unit 1, a plurality of sensor units 2, an edge calculating unit 3, a temperature control unit 4 and a monitoring host; the partial discharge monitoring unit 1 and the temperature control unit 4 are connected with a monitoring host, the output of the sensor unit 2 is connected with the input of the edge calculation unit 3, the output of the edge calculation unit 3 is connected with the monitoring host, and the output of the monitoring unit 7 is connected with the environment monitoring host 5 through the switch 6;
the partial discharge detection unit detects a partial discharge signal of the looped network indoor equipment;
the partial discharge monitoring unit 1 comprises a remote signaling monitoring unit and a remote sensing monitoring unit, and the remote signaling monitoring unit and the remote sensing monitoring unit are in communication connection with a monitoring host through a DTU (data transfer unit);
the remote signaling monitoring unit is in communication connection with the ring main unit and acquires monitoring signals of the ring main unit;
the remote signaling monitoring unit comprises a plurality of temperature sensors, and the temperature sensors are arranged inside the ring main unit. And comparing the feedback values of the plurality of temperature sensors of the ring main unit with the ring main unit temperature detected by the temperature control unit 4, screening abnormal temperature signals, and alarming the abnormal temperature signals through sound and light.
The remote sensing monitoring unit is in communication connection with the ring main unit and collects sensing signals of the ring main unit.
The detection signals comprise a sensor state signal, a switch position signal, a ground knife position and an overcurrent signal of the ring main unit; the induction signals comprise sensor state signals, switch position signals, ground knife positions and overcurrent signals; abnormal loops can be screened out quickly in advance, and passive events caused by fault amplification are greatly reduced. The partial discharge monitoring unit 1 realizes partial discharge signal detection through a capacitive voltage divider in the equipment cabinet. The preventive maintenance and remote real-time equipment management of the ring network room distribution network equipment are realized through partial discharge online monitoring, temperature online monitoring and edge calculation only, so that the operation state of the distribution network is sensed, and the operation and maintenance efficiency is improved.
The sensor unit 2 comprises an environment sensor, a security sensor and an electric sensor; the environmental sensor monitors environmental signals and is connected with monitoring host DTU communication, the security protection sensor detects security protection signals and is connected with monitoring host DTU communication, the electrical sensor detects electrical equipment signals and is connected with monitoring host DTU communication.
The environment sensor comprises a temperature and humidity collector, a gas sensor, a water level sensor, a lamp state sensor, a fan state sensor, an air conditioner state sensor, a dehumidifier state sensor and a water pump state sensor; the security sensor comprises a fire extinguisher air pressure sensor, an infrared sensor, a smoke sensor and an open fire sensor;
the water level sensor is arranged in a cable trench or a cable stacking water pit in the looped network room, the protection grade is IP68, and the shell is made of stainless steel and has a low-temperature anti-freezing function.
The temperature and humidity sensor is provided with an LCD display screen, on-site environment temperature and humidity parameters are accurately displayed on the LCD, and the temperature and humidity sensor is installed in the looped network room and is 1.5m away from the ground, so that personnel can conveniently check indoor environment information;
the gas sensor comprises a sulfur hexafluoride and oxygen sensor and is mainly used for monitoring SF6 gas leakage condition and oxygen concentration in air in the environment of the ring network indoor combined electrical equipment room; the gas sensor is installed in a wall-mounted mode and located 10-20 cm away from a ground reference point and close to the ring main unit, the sulfur hexafluoride monitoring accuracy is not higher than 2% FS, the oxygen monitoring accuracy is not higher than 1% FS, and the protection grade reaches IP 65. And the sensing of indoor environmental information, equipment state and security information of the ring network is realized.
The edge calculation unit 3 detects abnormal information monitored by the looped network room sensor;
the temperature control unit 4 detects the temperature of the ring network chamber and provides compensation for the temperature of the ring network chamber when the temperature of the ring network chamber exceeds a preset limit value.
The invention also discloses a method for monitoring the digital twin of the looped network room,
a remote signaling monitoring unit of the partial discharge monitoring unit 1 detects a monitoring signal of the ring main unit and transmits the monitoring signal of the ring main unit to a monitoring host through a DTU channel; the remote sensing monitoring unit of the partial discharge monitoring unit 1 detects an induction signal of the ring main unit and transmits the induction signal of the ring main unit to the monitoring host through the DTU channel;
and comparing the feedback values of the plurality of temperature sensors of the ring main unit with the ring main unit temperature detected by the temperature control unit 4, screening abnormal temperature signals, and alarming the abnormal temperature signals through sound and light.
The monitoring signals of the remote signaling monitoring unit of the partial discharge monitoring unit 1 for detecting the ring main unit comprise voltage signals, phase current signal cable head temperature signals, humidity signals in the ring main unit and temperature signals in the ring main unit detected by the partial discharge monitoring unit 1.
The sensing signal that the remote sensing monitoring unit of the partial discharge monitoring unit 1 detects the looped netowrk cabinet includes: a remote signaling monitoring unit of the partial discharge monitoring unit 1 detects a sensor state signal, a switch position signal, a ground switch position and an overcurrent signal of the ring main unit; and judging whether the induction signal accords with a preset normal state or not through the edge calculation unit 3, and if not, transmitting an alarm signal to the monitoring host.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms ring room, ring main unit, remote sensing, remote signaling, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. A digital twin monitoring device for a looped network room is characterized by comprising a partial discharge monitoring unit, a plurality of sensor units, an edge calculating unit, a temperature control unit and a monitoring host; the partial discharge monitoring unit and the temperature control unit are connected with a monitoring host, the output of the sensor unit is connected with the input of the edge calculation unit, the output of the edge calculation unit is connected with the monitoring host, and the output of the monitoring unit is connected with the environment monitoring host through a switch;
the partial discharge detection unit detects a partial discharge signal of the looped network indoor equipment;
the edge calculation unit detects abnormal information monitored by the looped network room sensor;
the temperature control unit detects the temperature of the ring network chamber and provides compensation for the temperature of the ring network chamber when the temperature of the ring network chamber exceeds a preset limit value.
2. The ring room digital twin monitoring device according to claim 1, wherein the partial discharge monitoring unit comprises a remote signaling monitoring unit and a remote sensing monitoring unit, and the remote signaling monitoring unit and the remote sensing monitoring unit are in communication connection with a monitoring host through a DTU;
the remote signaling monitoring unit is in communication connection with the ring main unit and acquires monitoring signals of the ring main unit;
the remote sensing monitoring unit is in communication connection with the ring main unit and collects sensing signals of the ring main unit.
3. The looped network room digital twin monitoring device according to claim 2, wherein the sensor unit comprises an environmental sensor, a security sensor and an electrical sensor; the environmental sensor monitors environmental signals and is connected with monitoring host DTU communication, the security protection sensor detects security protection signals and is connected with monitoring host DTU communication, the electrical sensor detects electrical equipment signals and is connected with monitoring host DTU communication.
4. The looped network room digital twin monitoring device according to claim 3, wherein the remote signaling monitoring unit comprises a plurality of temperature sensors, and the plurality of temperature sensors are arranged inside the looped network cabinet.
5. A method for monitoring the digital twin of a ring network room, which is characterized in that a device for monitoring the digital twin of the ring network room as claimed in any one of claims 1 to 4 is adopted.
6. The looped network room digital twin monitoring device of claim 5, comprising: a remote signaling monitoring unit of the partial discharge monitoring unit detects a monitoring signal of the ring main unit and transmits the monitoring signal of the ring main unit to a monitoring host through a DTU channel; a remote sensing monitoring unit of the partial discharge monitoring unit detects an induction signal of the ring main unit and transmits the induction signal of the ring main unit to the monitoring host through a DTU channel;
and comparing feedback values of a plurality of temperature sensors of the ring main unit with the ring main unit temperature detected by the temperature control unit, screening abnormal temperature signals, and alarming the abnormal temperature signals through sound and light.
7. The method for monitoring the digital twins in the ring main unit according to claim 6, wherein the monitoring signals of the remote signaling monitoring unit of the partial discharge monitoring unit for detecting the ring main unit comprise a voltage signal, a phase current signal, a cable head temperature signal, an in-cabinet humidity signal and an in-cabinet temperature signal of the ring main unit detected by the partial discharge monitoring unit.
8. The method for monitoring the digital twin of the ring network room as claimed in claim 7, wherein the step of detecting the sensing signal of the ring network cabinet by the remote sensing monitoring unit of the partial discharge monitoring unit comprises the following steps: a remote signaling monitoring unit of the partial discharge monitoring unit detects a sensor state signal, a switch position signal, a ground switch position and an overcurrent signal of the ring main unit; and judging whether the induction signal accords with a preset normal state or not through the edge calculation unit, and if not, transmitting an alarm signal to the monitoring host.
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| CN202210167856.2A CN114646345A (en) | 2022-02-23 | 2022-02-23 | Digital twin monitoring device and monitoring method for looped network room |
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Patent Citations (9)
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