CN212515430U - Power plant is low-power consumption edge controller for cubical switchboard based on multisource is complementary gets electricity - Google Patents
Power plant is low-power consumption edge controller for cubical switchboard based on multisource is complementary gets electricity Download PDFInfo
- Publication number
- CN212515430U CN212515430U CN202021461258.9U CN202021461258U CN212515430U CN 212515430 U CN212515430 U CN 212515430U CN 202021461258 U CN202021461258 U CN 202021461258U CN 212515430 U CN212515430 U CN 212515430U
- Authority
- CN
- China
- Prior art keywords
- power
- low
- unit
- complementary
- input port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to a low-power consumption edge controller for power plant's cubical switchboard based on multisource is complementary gets electricity, get electricity unit and wireless communication unit including edge calculation unit, multisource are complementary, multisource complementary get electricity unit be connected with edge calculation unit and wireless communication unit respectively, edge calculation unit be connected with wireless communication unit, wireless communication unit and cubical switchboard in wireless sensor communication connection. Compared with the prior art, the utility model has the advantages of power reliable operation, monitoring data response are fast, the precision of measurationing is high.
Description
Technical Field
The utility model relates to a cubical switchboard running state monitoring technology of power plant especially relates to a cubical switchboard of power plant is with low-power consumption edge controller based on multisource is complementary gets electricity.
Background
At present, parameters such as temperature and action execution characteristics, gas sensing, partial discharge and the like of each moving and static contact, cable joint, busbar joint, actuating mechanism are mainly included to the inside monitoring object of the switch cabinet for the power plant, signal and data acquisition is mainly carried out through a passive wireless sensor, each item of data is acquired according to a certain acquisition interval period, the passive wireless sensor gets electricity and is connected to the position of an electrified contact, a loop or a phase line in a ring mode through CT and silicon steel sheet modes, and electric energy is acquired through an induction mode.
For a newly-built intelligent switch cabinet, after data acquisition, data are collected to a relay protection device or an intelligent monitoring unit with a protection function in the switch cabinet in a wireless mode, and then the intelligent monitoring unit is communicated with an external cloud platform and carries out data analysis and processing. Typical products such as iVD4 products of ABB company and iGas intelligent switch technology and products realize that state data are transmitted to an ABB cloud data server and cloud storage in real time through a GPRS/3G communication mode and a cloud computing technology, and remote monitoring and fault early warning of the state of the switch equipment are realized.
For the intelligent improved switch cabinet, after data acquisition, the data are collected to a data concentrator outside the switch cabinet in a wireless communication mode and then collected to a local monitoring master station and a cloud frequency station, and the local monitoring master station performs early warning, judgment and fault decision support. But the disadvantages are also more obvious:
1) on the physical connection layer of monitoring data, a plurality of data acquisition points are arranged in a single set of switch cabinet, the data acquisition interval generally ranges from second level to minute level, a 433MHz universal frequency band Zigbee communication mode is generally adopted, the transmitting power is generally 60mW, and the data is transmitted to an external data concentrator after penetrating through a metal cabinet body; however, the shielding and grounding of a common switch cabinet are good, and a strong shielding effect is achieved on signals, so that a plurality of monitoring points need to transmit signals with close transmitting power far higher than that of an open field, the EMC (electro magnetic compatibility) is easy to exceed the standard, and more importantly, the requirement on power supply power is increased rapidly; when the passive wireless sensor is deployed on site, the power taking power of the passive wireless sensor is limited, the switch cabinet has good shielding performance, and the installation position of the data concentrator cannot be unified, so that even if the signal power is amplified, the signal is easily lost, and the establishment of a bottom data acquisition channel is influenced.
2) In the information computing aspect of the monitoring data, due to the inherent hierarchical structure of the cloud platform, after the data quantity or sampling frequency of the monitoring sampling points in the switch cabinet is increased, due to the lack of edge computing capacity, analysis, prediction and decision of a large amount of data are accumulated on the cloud platform; due to the lack of data cleaning and maintenance on the edge side, the data acquisition efficiency, the data response speed, the data effectiveness degree and the like of the cloud platform have various problems.
3) For the intelligent improved switch cabinet, the mains supply is difficult to introduce due to the existing structural limitation and safety requirement of the original cabinet body. The single passive wireless sensor is powered by a CT and a silicon steel sheet, and is connected to an electrified contact, a loop or a phase line in a ring mode, electric energy is obtained in an induction mode, when the current is too large, the CT and the silicon steel sheet are easily subjected to magnetic saturation, and the danger of short circuit or demagnetization is easily caused while the loss is increased; meanwhile, the two modes of electricity taking and wireless sensor transmitting power supply both meet the transmitting power requirement, namely the requirement is provided for the minimum load current, when the load current is small, if the loop current of the CT is less than 50A or the loop current of the silicon steel sheet is less than 5A, the sensor obtains insufficient energy and cannot work continuously, the data storage will have a gear-off period, and the temperature analysis and prediction are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power reliable operation in order to overcome the defect that above-mentioned prior art exists and provide a power, the monitoring data response is fast, the high low-power consumption edge controller for power plant's cubical switchboard based on the complemental electricity of getting of multisource of measurement precision, through adopting the complemental electricity technique of getting of multisource, it is big to solve single wireless temperature sensor transmission consumption, the signal pierces through and assembles the difficulty with data, CT or silicon steel sheet appear when getting the electricity magnetic saturation or the magnetic flux is not enough to cause difficult problems such as signal loss, thereby the reliable and stable data acquisition passageway of key part operation monitoring data is established in the guarantee.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a power plant is low-power consumption edge controller for cubical switchboard based on multisource is complementary gets electricity, includes that edge calculation unit, multisource are complementary gets electricity unit and wireless communication unit, multisource complementary get electricity unit be connected with edge calculation unit and wireless communication unit respectively, edge calculation unit be connected with wireless communication unit, wireless communication unit and cubical switchboard in wireless sensor communication connection.
Preferably, the edge computing unit comprises a main processor MCU and a RAM random access memory which are connected with each other, the multi-source complementary power taking unit is respectively connected with the main processor MCU and the RAM random access memory, and the main processor MCU is connected with the wireless communication unit.
Preferably, the main processor MCU is an ultra-low power consumption single chip microcomputer MSP430F series.
Preferably, the RAM random access memory is a 2Mbit ferroelectric RAM memory.
Preferably, the wireless communication unit includes a bluetooth communication module and a Zigbee communication module which are respectively in communication connection with the wireless sensor in the switch cabinet, and the main processor MCU is respectively connected with the bluetooth communication module and the Zigbee communication module through a UART asynchronous serial interface.
Preferably, the bluetooth communication module is a 2.4GHz ultra-low power consumption bluetooth communication module.
Preferably, the Zigbee communication module is a 433MHz Zigbee communication module.
Preferably, the multi-source complementary power taking unit comprises an energy collection manager IC integrated circuit, a thermoelectric power generation power input port, a CT induction power input port and a silicon steel sheet induction power input port, wherein the energy collection manager IC integrated circuit is respectively connected with the thermoelectric power generation power input port, the CT induction power input port and the silicon steel sheet induction power input port.
Preferably, the energy collection manager IC integrated circuit comprises a multi-port booster circuit and a super capacitor which are connected with each other, the multi-port booster circuit is respectively connected with the temperature difference power generation power input port, the CT induction power input port and the silicon steel sheet induction power input port, and the super capacitor is respectively connected with the edge calculation unit and the wireless communication unit.
Preferably, a diode is arranged between the super capacitor and the edge calculating unit, wherein the anode of the diode is connected with the super capacitor, and the cathode of the diode is connected with the edge calculating unit.
Compared with the prior art, the utility model has the advantages of it is following:
1. the edge controller is used for obtaining electricity through multi-source complementation, the installation position can be arranged at a position which is more favorable for communication with the data concentrator, and a power supply point for obtaining electricity can be arranged at a cable inlet wire and a busbar which are loose in position space without being arranged inside a plum blossom contact of a circuit breaker with narrow space, so that engineering implementation is facilitated.
2. The power consumption requirement of the sensor is greatly reduced, the power of a power supply of the passive wireless sensor is reduced by nearly 90%, and the problems of large variable CT and silicon steel sheets, no magnetic saturation and the like can be adopted. By adding the low-power-consumption edge controller, the transmitting power of the passive wireless sensor is directly reduced to 1mW from 60mW required by the original Zigbee communication, the problem that signals of the sensors arranged at different positions are shielded by a metal shell of the switch cabinet is not considered, and a very stable and reliable data channel connection is established between the passive wireless sensor and the edge computing controller inside the switch cabinet.
3. The signal power that data acquisition unit obtained is bigger, and the communication is more stable. Taking standard 9 sensors (3 each of the incoming cable, the busbar and the contact) as an example, the original total power is 720 mW; the edge computing controller is adopted for data communication with the data concentrator, the transmitting power of 100mW level or higher is adopted, only the single point is communicated with the data concentrator, the situation that a plurality of passive wireless sensors are directly connected with the data concentrator is avoided, the overall power consumption is reduced by more than 70%, and more stable data channel connection is realized.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic diagram of an embodiment of the present invention;
fig. 4 is a schematic diagram of a specific application of the prior art.
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 some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
The purpose of the utility model is specifically as follows:
1. the problem of single wireless temperature sensor transmission consumption big, signal penetration and data assemble the difficulty, appear magnetism saturation or magnetic flux not enough when CT or silicon steel sheet get the electricity and cause communication failure is solved. By adding the edge controller, the structure that the existing single wireless sensor is directly communicated with the data concentrator respectively is changed, only small transmitting power is needed, and the data communication link is gathered by the edge controller and then sent to the data acquisition unit with large transmitting power.
2. The mains supply does not need to be introduced, and the problem of power taking in the switch cabinet of the edge controller is solved.
3. And stable electric energy is provided for the edge controller through a multi-source complementary electricity taking mode. By using the semiconductor thermoelectric power generation chip, thermoelectric power generation between heat near the contact point of the busbar branch and air is fully utilized as a power supply to be input; meanwhile, a power supply for taking electricity through the CT and the silicon steel sheet is used as the other paths of power supply input, energy boosting regulation processing is carried out through an internal energy collection management IC, and the energy is stored in an internal super capacitor to obtain stable electric energy supply.
As shown in fig. 2, the utility model discloses the complementary low-power consumption edge controller major structure of getting electricity of multisource includes: the device comprises an edge calculating unit, a multi-source complementary power taking unit and a wireless communication unit.
1. The edge calculation unit comprises a main processor MCU and a 2Mbit RAM random access memory. The MCU is an ultra-low power consumption singlechip MSP430F series, the peripheral memory adopts a 2Mbit ferroelectric RAM memory, and the MCU has the advantages of high access speed, low power consumption, no loss in power failure and the like, and simultaneously has 2 UART asynchronous serial interfaces with 2 wires, and the MCU is respectively in digital communication with a Bluetooth communication circuit and a Zigbee communication circuit in a wireless communication circuit, wherein the wireless communication mode in the cabinet adopts 2.4GHz ultra-low power consumption Bluetooth, and the communication mode with a data concentrator outside the cabinet adopts 433MHz Zigbee. The MCU and the ferroelectric RAM memory buffer and process the data from the Bluetooth communication interface and then send the data to the data concentrator.
2. The multi-source complementary electricity taking is realized by 2 energy collection manager IC (integrated circuit) MAX17710, and each MAX17710 has 2 power supply inputs to form a multi-port booster circuit. The invention fully utilizes the output end of the temperature difference power generation chip between the heat near the branch contact point of the busbar and the air as a path of power supply input, and is connected to the temperature difference power supply input port of the multi-port booster circuit of the edge controller; meanwhile, a power supply for getting electricity through the CT and the silicon steel sheet is used as the other 2 paths of power supply input and respectively connected to the CT induction power supply input port and the silicon steel sheet induction power supply input port of the multi-port booster circuit. Energy boosting and regulating processing is carried out through an internal energy collection management IC, and the energy is stored in an internal super capacitor to obtain stable power supply. The voltage range is between the withstand voltage of the super capacitor and 1.8V-5V.
3. In a short time of transmitting by the wireless communication circuit, the required electric energy is large, the voltage on the super capacitor fluctuates to cause the voltage fluctuation of the main processor MCU to cause reset, a diode with 1N4148 signals is added between the super capacitor with the capacity of 1F and the main processor MCU circuit, when the voltage of the super capacitor fluctuates, the capacitor stored by the peripheral capacitor of the main processor MCU is isolated by the diode and cannot flow back to the super capacitor, and therefore the voltage stability of the main processor MCU is guaranteed.
4. The wireless communication unit comprises 1 2.4GHz ultra-low power consumption Bluetooth communication module and 1 433MHz Zigbee communication module, and is communicated with the passive wireless sensor in the cabinet, so that the power consumption and the transmitting power of the passive wireless sensor in the cabinet are greatly reduced; and the Zigbee of 433MHz is adopted as the communication mode with the data concentrator outside the cabinet.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a power plant is low-power consumption edge controller for cubical switchboard based on multisource is complementary gets electricity, its characterized in that includes edge calculation unit, multisource is complementary gets electricity unit and wireless communication unit, multisource complementary get electricity unit be connected with edge calculation unit and wireless communication unit respectively, edge calculation unit be connected with wireless communication unit, wireless communication unit and cubical switchboard in wireless sensor communication connection.
2. The power plant switchgear low-power consumption edge controller based on multi-source complementary electricity taking of claim 1, characterized in that the edge computing unit comprises a main processor MCU and a RAM random access memory which are connected with each other, the multi-source complementary electricity taking unit is respectively connected with the main processor MCU and the RAM random access memory, and the main processor MCU is connected with the wireless communication unit.
3. The multi-source complementary electricity taking-based low-power-consumption edge controller for the power plant switch cabinet, as claimed in claim 2, wherein the main processor MCU is an ultra-low-power-consumption single-chip microcomputer MSP430F series.
4. The multi-source complementary power taking-based low-power-consumption edge controller for the power plant switch cabinet, according to claim 2, wherein the RAM random access memory is a 2Mbit ferroelectric RAM memory.
5. The multi-source complementary power-taking-based low-power-consumption edge controller for a power plant switch cabinet, as claimed in claim 2, wherein the wireless communication unit comprises a bluetooth communication module and a Zigbee communication module which are respectively in communication connection with a wireless sensor in the switch cabinet, and the main processor MCU is respectively connected with the bluetooth communication module and the Zigbee communication module through UART asynchronous serial interfaces.
6. The power plant switchgear low-power-consumption edge controller based on multi-source complementary electricity taking of claim 5, wherein the Bluetooth communication module is a 2.4GHz ultra-low-power-consumption Bluetooth communication module.
7. The power plant switchgear low-power-consumption edge controller based on multi-source complementary electricity taking of claim 5, wherein the Zigbee communication module is a 433MHz Zigbee communication module.
8. The power plant switch cabinet low-power-consumption edge controller based on multi-source complementary electricity taking of claim 1, wherein the multi-source complementary electricity taking unit comprises an energy collection manager IC integrated circuit, a thermoelectric generation power input port, a CT induction power input port and a silicon steel sheet induction power input port, and the energy collection manager IC integrated circuit is respectively connected with the thermoelectric generation power input port, the CT induction power input port and the silicon steel sheet induction power input port.
9. The power plant switch cabinet low-power-consumption edge controller based on multi-source complementary electricity taking of claim 8, wherein the energy collection manager IC integrated circuit comprises a multi-port booster circuit and a super capacitor which are connected with each other, the multi-port booster circuit is respectively connected with a temperature difference power generation power input port, a CT induction power input port and a silicon steel sheet induction power input port, and the super capacitor is respectively connected with an edge calculation unit and a wireless communication unit.
10. The multi-source complementary power-taking-based low-power-consumption edge controller for the power plant switch cabinet, according to claim 9, is characterized in that a diode is arranged between the super capacitor and the edge computing unit, wherein an anode of the diode is connected with the super capacitor, and a cathode of the diode is connected with the edge computing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021461258.9U CN212515430U (en) | 2020-07-22 | 2020-07-22 | Power plant is low-power consumption edge controller for cubical switchboard based on multisource is complementary gets electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021461258.9U CN212515430U (en) | 2020-07-22 | 2020-07-22 | Power plant is low-power consumption edge controller for cubical switchboard based on multisource is complementary gets electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212515430U true CN212515430U (en) | 2021-02-09 |
Family
ID=74443032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021461258.9U Active CN212515430U (en) | 2020-07-22 | 2020-07-22 | Power plant is low-power consumption edge controller for cubical switchboard based on multisource is complementary gets electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212515430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113934175A (en) * | 2021-10-26 | 2022-01-14 | 华电莱州发电有限公司 | Intelligent wireless steam turbine data acquisition system |
-
2020
- 2020-07-22 CN CN202021461258.9U patent/CN212515430U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113934175A (en) * | 2021-10-26 | 2022-01-14 | 华电莱州发电有限公司 | Intelligent wireless steam turbine data acquisition system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203117771U (en) | Building energy consumption intelligent monitoring and management system | |
| CN104795891A (en) | Intelligent main transformer online monitoring system in distribution line | |
| CN212515430U (en) | Power plant is low-power consumption edge controller for cubical switchboard based on multisource is complementary gets electricity | |
| CN103063906A (en) | Electric power switch cabinet wireless monitoring system | |
| CN208904965U (en) | Cell plate group string performance monitoring device and photovoltaic power station monitoring system | |
| CN204649927U (en) | A kind of primary cut-out state monitoring device | |
| CN209927942U (en) | Intelligent online monitoring instrument for lightning arrester of power transmission line based on wireless communication | |
| CN104882965A (en) | Intelligent micro power grid control device and control method | |
| CN104142648A (en) | Management and control terminal of urban rail traffic low-voltage power distribution system | |
| CN106707019A (en) | Service robot electric quantity monitoring device | |
| CN207082000U (en) | A kind of wisdom O＆M monitors photovoltaic generating system | |
| CN203365669U (en) | Running state on-line monitoring device for electronic mutual inductor | |
| CN206402184U (en) | A kind of photovoltaic combiner box with no-power compensation function | |
| CN206515392U (en) | Ship Electrical Power System Harmonic Detecting Device | |
| CN211266900U (en) | Ubiquitous power internet of things partial discharge online monitoring system based on LoRa | |
| CN201563005U (en) | Protective measurement and control and electrical contact online temperature detecting integrated device | |
| CN210071974U (en) | Electric energy-saving early warning device for commercial complex building | |
| CN210951519U (en) | Heat supply remote monitoring system | |
| CN210039082U (en) | Intelligent electricity utilization safety detection equipment based on EnOcean communication technology | |
| CN204681162U (en) | Intelligent micro-grid control device | |
| CN204597630U (en) | Main transformer intelligent online monitoring system in distribution line | |
| CN204461465U (en) | A kind of wind-powered electricity generation monitoring device based on ARM and FPGA framework | |
| CN205911833U (en) | A communication management device for transformer substation | |
| CN204044567U (en) | A kind of urban track traffic low-voltage distribution system control terminal | |
| CN206401988U (en) | A kind of photovoltaic combiner box intelligent monitoring and controlling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |