CN101860079A - Wireless sensor network measuring and controlling device for prefabricated transformer substations - Google Patents
Wireless sensor network measuring and controlling device for prefabricated transformer substations Download PDFInfo
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- CN101860079A CN101860079A CN201010164102A CN201010164102A CN101860079A CN 101860079 A CN101860079 A CN 101860079A CN 201010164102 A CN201010164102 A CN 201010164102A CN 201010164102 A CN201010164102 A CN 201010164102A CN 101860079 A CN101860079 A CN 101860079A
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- sensor node
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The invention discloses a wireless sensor network measuring and controlling device for prefabricated transformer substations, which comprises a plurality of prefabricated transformer substations, a network coordinator and a monitoring host, wherein the prefabricated transformer substation comprises a high-voltage chamber environment sensor node, a low-voltage chamber environment sensor node, a transformer chamber environment sensor node, a high-voltage chamber contact sensor node, a low-voltage chamber electric quantity sensor node and a routing node; the high-voltage chamber environment sensor node, the low-voltage chamber environment sensor node, the transformer chamber environment sensor node, the high-voltage chamber contact sensor node and the low-voltage chamber electric quantity sensor node are in signal connection with the network coordinator through the routing node; and the network coordinator is in signal connection with the monitoring host. Through real-time detection, historical storage, statistics and inference for the prefabricated transformer substations, the device can accurately perform diagnosis and positioning, prevent further expansion of faults, and has significance for improving the power supply reliability and the power supply quality of the transformer substations.
Description
Technical field
The present invention relates to the wireless sensor network measure and control device of preassembled transformer station, relate in particular to that a kind of precision height, antijamming capability are strong, the wireless sensor network measure and control device of super low-power consumption, working stability, cost performance height, Ultra Low Cost, the various environment of adaptation and preassembled transformer station.
Background technology
Along with fast development of national economy, China is also increasing for the demand and the dependence of electric power.Simultaneously, the safety of transformer station and electrical network is also had higher requirement with stable.Power department needs a kind of supervisory control system that can monitor substation equipment in real time, and the very first time monitors the damage of power equipment and the destruction of human factor, handles it rapidly, and loss is reduced to minimum.The supervisory control of substation technical field has experienced three developing stage: local analog video monitoring, based on video monitoring and the network digital video monitoring of PC.Monitoring system of electric substation electric power enterprise abroad generally adopts, and mainly contains German Dallmeier Digital Video System etc., and existing at home many watch-dogs are applied, and there is Samsung photoelectron supervisory control system etc. in the ripe system in domestic monitoring field.Now supervisory control system or the performance that exists on the market is not high, or function is simple, or performance is higher but cost an arm and a leg.At this deficiency, this device employing wireless sensor network technique, sensor node is arranged at hyperbaric chamber, low-pressure chamber and the transformer room of preassembled transformer station, form wireless sensor network by routing node and coordinator node, realize a feature richness, transformer station's wireless supervisory control system that performance is powerful and cost is low.
Summary of the invention
In order to overcome above defective, the technical problem to be solved in the present invention is: the wireless sensor network measure and control device that proposes the preassembled transformer station of a kind of high-performance, low-consumption wireless SOC module.
The technical solution adopted in the present invention is: a kind of wireless sensor network measure and control device of preassembled transformer station, comprise some prepackages electric substation, network coordinator and monitoring host computer, described prepackage electric substation comprises hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node, transformer room's environmental sensor node, hyperbaric chamber contact sensor node, low-pressure chamber electrical quantity sensor node and routing node, this hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node, transformer room's environmental sensor node, hyperbaric chamber contact sensor node and low-pressure chamber electrical quantity sensor node are connected with the network coordinator signal via routing node, and network coordinator is connected with the monitoring host computer signal.
According to another preferred embodiment, the wireless sensor network measure and control device of preassembled transformer station comprises that further described network coordinator comprises JN5139 wireless chip, LPC2210 microcontroller chip, SRAM memory, FLASH memory and ethernet controller, and described JN5139 wireless chip, SRAM memory, FLASH memory and ethernet controller are connected with LPC2210 microcontroller chip signal.
According to another preferred embodiment, the wireless sensor network measure and control device of preassembled transformer station further comprises described hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node and transformer room's environmental sensor node comprise the JN5139 wireless chip, the hyperbaric chamber environmental sensor, low-pressure chamber environmental sensor and transformer room's environmental sensor, JN5139 wireless chip and hyperbaric chamber environmental sensor, low-pressure chamber environmental sensor and transformer room's environmental sensor signals connect, described hyperbaric chamber environmental sensor, be respectively arranged with humiture integrated sensor and Smoke Sensor in low-pressure chamber environmental sensor and the transformer room's environmental sensor, this JN5139 wireless chip also divides level signal to be connected with clock circuit, reset circuit, sound light alarming circuit, dehumidifier drive circuit and heater circuit.
According to another preferred embodiment, the wireless sensor network measure and control device of preassembled transformer station comprises that further hyperbaric chamber contact sensor node comprises JN5139 wireless chip, high-voltage board contact macromolecule sheetlike temperature indicator, carbon dioxide sensor, reset circuit and clock circuit, and the JN5139 wireless chip is connected with high-voltage board contact macromolecule sheetlike temperature indicator, carbon dioxide sensor, reset circuit and clock circuit signal.
According to another preferred embodiment, the wireless sensor network measure and control device of preassembled transformer station comprises that further low-pressure chamber electrical quantity sensor node comprises low-voltage cabinet electric quantity signal, clock circuit, reset circuit and JN5139 wireless chip, this low-voltage cabinet electric quantity signal is connected by the RS-485 interface with the JN5139 wireless chip, and clock circuit is connected with JN5139 wireless chip signal with reset circuit.
The invention has the beneficial effects as follows: by real-time detection, historical storage, statistics and reasoning preassembled transformer station, thereby can accurately diagnose and locate, prevent the further expansion of fault, the reliability and the power supply quality that improve transformer station's power supply are significant.
Description of drawings
Fig. 1 is the wireless sensor network measure and control device data flow block diagram of preassembled transformer station of the present invention;
Fig. 2 is the wireless sensor network measure and control device telegon block diagram of preassembled transformer station of the present invention;
Fig. 3 is wireless sensor network measure and control device high pressure, low pressure and the transformer room temperature environmental sensor node block diagram of preassembled transformer station of the present invention;
Fig. 4 is the wireless sensor network measure and control device high-voltage contact temperature sensor node block diagram of preassembled transformer station of the present invention;
Fig. 5 is the wireless sensor network measure and control device low-pressure chamber electrical quantity sensor node block diagram of preassembled transformer station of the present invention;
Fig. 6 is wireless sensor network measure and control device high pressure, low pressure and the transformer room temperature environmental sensor node schematic diagram of preassembled transformer station of the present invention;
Fig. 7 is the wireless sensor network measure and control device high-voltage contact temperature sensor node schematic diagram of preassembled transformer station of the present invention;
Fig. 8 is the wireless sensor network measure and control device low-pressure chamber electrical quantity sensor node schematic diagram of preassembled transformer station of the present invention.
Embodiment
The present invention is further detailed explanation with preferred embodiment in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 1, a kind of wireless sensor network measure and control device of preassembled transformer station, comprise some prepackages electric substation, network coordinator and monitoring host computer, described prepackage electric substation comprises hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node, transformer room's environmental sensor node, hyperbaric chamber contact sensor node, low-pressure chamber electrical quantity sensor node and routing node, this hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node, transformer room's environmental sensor node, hyperbaric chamber contact sensor node and low-pressure chamber electrical quantity sensor node are connected with the network coordinator signal via routing node, and network coordinator is connected with the monitoring host computer signal.
As shown in Figure 2, network coordinator comprises JN5139 wireless chip, LPC2210 microcontroller chip, SRAM memory, FLASH memory and ethernet controller, and described JN5139 wireless chip, SRAM memory, FLASH memory and ethernet controller are connected with LPC2210 microcontroller chip signal.
The JN5139 wireless chip receives the information from hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node, transformer room's environmental sensor node, hyperbaric chamber contact sensor node, low-pressure chamber electrical quantity sensor node, signal through the processing of JN5139 wireless chip, give LPC2210 microcontroller chip, simultaneously with information stores in SRAM memory and FLASH memory, the FLASH memory is a 16Mbit FLASH memory.Data after handling through the LPC2210 microcontroller chip are sent into ethernet controller, connect Ethernet by Ethernet interface again, and too network interface adopts RJ45.
As Fig. 3, shown in 6, described hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node and transformer room's environmental sensor node comprise the JN5139 wireless chip, the hyperbaric chamber environmental sensor, low-pressure chamber environmental sensor and transformer room's environmental sensor, JN5139 wireless chip and hyperbaric chamber environmental sensor, low-pressure chamber environmental sensor and transformer room's environmental sensor signals connect, described hyperbaric chamber environmental sensor, be respectively arranged with humiture integrated sensor and Smoke Sensor in low-pressure chamber environmental sensor and the transformer room's environmental sensor, this JN5139 wireless chip also divides level signal to be connected with clock circuit, reset circuit, sound light alarming circuit, dehumidifier drive circuit and heater circuit.
Hyperbaric chamber environmental sensor, low-pressure chamber environmental sensor and transformer room's environmental sensor room temperature humidity adopt integrated Temperature Humidity Sensor SHT10, adopt the I2C interface with wireless controller JN5139 interface, realize that by simulation the DATA data wire lifts signal to high level by an external pull-up resistor; Hyperbaric chamber environmental sensor, low-pressure chamber environmental sensor and transformer room's environmental sensor Smoke Sensor adopt ionic smoke detector ZRAM-A1, the signal input Smoke Detection chip MC14468 that probe is gathered finishes preliminary signal processing, adopt the TMP35G temperature sensor to gather ambient temperature simultaneously, the signal input DS2438 chip that both gather, with DS2438 output signal input JN5139 wireless chip, in sensor node apparatus, adopt clock chip to be used for timing is carried out in sampling simultaneously then.
Shown in Fig. 4,7, hyperbaric chamber contact sensor node comprises JN5139 wireless chip, high-voltage board contact macromolecule sheetlike temperature indicator, carbon dioxide sensor, reset circuit and clock circuit, and the JN5139 wireless chip is connected with high-voltage board contact macromolecule sheetlike temperature indicator, carbon dioxide sensor, reset circuit and clock circuit signal.
Paste the macromolecule sheetlike temperature indicator on the contact in high-voltage board, the material composition of macromolecule sheetlike temperature indicator is done suitably to adjust, change its melting temperature, can satisfy different overtemperature monitoring requirements, thereby enlarge the monitoring range of temperature.When the contact temperature overtemperature, the macromolecule sheetlike temperature indicator is heated and discharges CO2 gas, and can realize the overtemperature variable color, make CO2 gas concentration sharply rising at short notice in the cabinet, detect the variation of CO2 concentration by the MS4100 carbon dioxide sensor, the MS4100 sensor output signal is handled the AD conversion input of back input JN5139 wireless chip through modulate circuit, the high-performance that wireless microcontroller adopts, low-consumption wireless SOC module, realize the automatic network-building and the transmission-receiving function of wireless sensor network, adopt clock chip to be used for timing is carried out in sampling simultaneously in the contact sensor node apparatus of hyperbaric chamber, clock circuit adopts clock chip DS1302.
Shown in Fig. 5,8, low-pressure chamber electrical quantity sensor node comprises low-voltage cabinet electric quantity signal, clock circuit, reset circuit and JN5139 wireless chip, this low-voltage cabinet electric quantity signal is connected by the RS-485 interface with the JN5139 wireless chip, and clock circuit is connected with JN5139 wireless chip signal with reset circuit.Power instrument by RS-485 communication interface and low-pressure chamber is communicated by letter, obtain voltage, electric current, parameter such as meritorious, idle, adopt clock chip to be used for timing is carried out in sampling simultaneously in low-pressure chamber electrical quantity sensor node apparatus, clock circuit adopts clock chip DS1302.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (5)
1. the wireless sensor network measure and control device of a preassembled transformer station, it is characterized in that: comprise some prepackages electric substation, network coordinator and monitoring host computer, described prepackage electric substation comprises hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node, transformer room's environmental sensor node, hyperbaric chamber contact sensor node, low-pressure chamber electrical quantity sensor node and routing node, this hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node, transformer room's environmental sensor node, hyperbaric chamber contact sensor node and low-pressure chamber electrical quantity sensor node are connected with the network coordinator signal via routing node, and network coordinator is connected with the monitoring host computer signal.
2. the wireless sensor network measure and control device of preassembled transformer station according to claim 1, it is characterized in that, described network coordinator comprises JN5139 wireless chip, LPC2210 microcontroller chip, SRAM memory, FLASH memory and ethernet controller, and described JN5139 wireless chip, SRAM memory, FLASH memory and ethernet controller are connected with LPC2210 microcontroller chip signal.
3. the wireless sensor network measure and control device of preassembled transformer station according to claim 2, it is characterized in that, described hyperbaric chamber environmental sensor node, low-pressure chamber environmental sensor node and transformer room's environmental sensor node comprise the JN5139 wireless chip, the hyperbaric chamber environmental sensor, low-pressure chamber environmental sensor and transformer room's environmental sensor, JN5139 wireless chip and hyperbaric chamber environmental sensor, low-pressure chamber environmental sensor and transformer room's environmental sensor signals connect, described hyperbaric chamber environmental sensor, be respectively arranged with humiture integrated sensor and Smoke Sensor in low-pressure chamber environmental sensor and the transformer room's environmental sensor, this JN5139 wireless chip also divides level signal to be connected with clock circuit, reset circuit, sound light alarming circuit, dehumidifier drive circuit and heater circuit.
4. the wireless sensor network measure and control device of preassembled transformer station according to claim 1, it is characterized in that, hyperbaric chamber contact sensor node comprises JN5139 wireless chip, high-voltage board contact macromolecule sheetlike temperature indicator, carbon dioxide sensor, reset circuit and clock circuit, and the JN5139 wireless chip is connected with high-voltage board contact macromolecule sheetlike temperature indicator, carbon dioxide sensor, reset circuit and clock circuit signal.
5. the wireless sensor network measure and control device of preassembled transformer station according to claim 1, it is characterized in that, low-pressure chamber electrical quantity sensor node comprises low-voltage cabinet electric quantity signal, clock circuit, reset circuit and JN5139 wireless chip, this low-voltage cabinet electric quantity signal is connected by the RS-485 interface with the JN5139 wireless chip, and clock circuit is connected with JN5139 wireless chip signal with reset circuit.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103179629A (en) * | 2013-03-29 | 2013-06-26 | 国家电网公司 | Wireless router structure for wireless sensor network of power transmission and transformation system project |
CN108171956A (en) * | 2018-03-03 | 2018-06-15 | 深圳凯达通光电科技有限公司 | A kind of power transformer environmental monitoring system based on big data and WSN technology |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101577979A (en) * | 2009-06-01 | 2009-11-11 | 扬州大学 | Wireless sensor network device of photovoltaic power station |
KR20090120653A (en) * | 2008-05-20 | 2009-11-25 | 한국이엠아이테크놀로지 주식회사 | Web-based monitoring system for incoming transfer facilities |
CN201813072U (en) * | 2010-05-06 | 2011-04-27 | 丁建新 | Wireless sensor network measure and control device for prefabricated substations |
-
2010
- 2010-05-06 CN CN201010164102A patent/CN101860079A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090120653A (en) * | 2008-05-20 | 2009-11-25 | 한국이엠아이테크놀로지 주식회사 | Web-based monitoring system for incoming transfer facilities |
CN101577979A (en) * | 2009-06-01 | 2009-11-11 | 扬州大学 | Wireless sensor network device of photovoltaic power station |
CN201813072U (en) * | 2010-05-06 | 2011-04-27 | 丁建新 | Wireless sensor network measure and control device for prefabricated substations |
Non-Patent Citations (5)
Title |
---|
《电力系统自动化》 20030825 刘曙光等 预装式变电站综合保护装置的设计与实现 第27卷, 第16期 * |
《电子测量与仪器学报》 20090131 孙剑等 基于C02传感器的高压开关柜触点超温监测仪的研制 第23卷, 第1期 * |
刘曙光等: "预装式变电站综合保护装置的设计与实现", 《电力系统自动化》, vol. 27, no. 16, 25 August 2003 (2003-08-25) * |
姜维福等: "基于DS2438芯片的智能化火灾传感器的设计与应用", 《电子工程师》, vol. 34, no. 11, 30 November 2008 (2008-11-30) * |
孙剑等: "基于C02传感器的高压开关柜触点超温监测仪的研制", 《电子测量与仪器学报》, vol. 23, no. 1, 31 January 2009 (2009-01-31) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103179629A (en) * | 2013-03-29 | 2013-06-26 | 国家电网公司 | Wireless router structure for wireless sensor network of power transmission and transformation system project |
CN108171956A (en) * | 2018-03-03 | 2018-06-15 | 深圳凯达通光电科技有限公司 | A kind of power transformer environmental monitoring system based on big data and WSN technology |
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Application publication date: 20101013 |