CN206698012U - It is a kind of to realize temperature look-ahead and the microcomputer protection system of alarm - Google Patents
It is a kind of to realize temperature look-ahead and the microcomputer protection system of alarm Download PDFInfo
- Publication number
- CN206698012U CN206698012U CN201720212840.3U CN201720212840U CN206698012U CN 206698012 U CN206698012 U CN 206698012U CN 201720212840 U CN201720212840 U CN 201720212840U CN 206698012 U CN206698012 U CN 206698012U
- Authority
- CN
- China
- Prior art keywords
- temperature
- module
- alarm
- ahead
- protection system
- 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
Classifications
-
- 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
-
- 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
- Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
-
- 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
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Temperature look-ahead and the microcomputer protection system of alarm are realized the utility model discloses a kind of; it includes being internally provided with the microprocessor of temperature current matched curve, the power supply processing module being connected with the microprocessor electric signal, analogue collection module, digital quantity input/output module, human-computer interaction module, communication interface module, wireless signal transceiver module and the relay being connected with the digital quantity input/output module electric signal, and the wireless signal transceiver module wireless signal is connected with some radio temperature sensors.The utility model can realize relay protection function, and and can substitutes radio temperature sensor reception device, realize to send in temperature and alarmed with temperature anomaly, and realize giving warning in advance for temperature anomaly.
Description
【Technical field】
A kind of microcomputer protecting device is the utility model is related to, temperature look-ahead and alarm are realized more particularly to a kind of
Microcomputer protection system.
【Background technology】
The major function of microcomputer protecting device is to carry out electrical equipment protection, wireless temperature reception device and temperature sensor
The heat condition of electrical equipment is mainly detected, and monitoring system will be sent on temperature information.Meanwhile wireless temperature reception device
Temperature anomaly can also be alarmed.As shown in Figure 7, when electrical equipment of the prior art carries out wireless temperature measurement,
Radio temperature sensor and wireless temperature reception device has been separately configured in the overwhelming majority, while Microcomputer Protection is also to configure
Protection location.Both microcomputer protecting device and wireless temperature reception device independent operating, monitoring system and microcomputer protecting device
Carry out also carrying out data communication with wireless temperature reception device while data communication.
In prior art, wireless temperature measurement reception device and microcomputer protecting device are all communicated with monitoring system, are increased
The data communication pressure of monitoring system is added；The separate configurations of radio receiver, add the cost of user；Wireless receiving fills
Put it is longer with the data transfer interval of radio temperature sensor, generally 2~10 minutes, temperature refresh not in time, cause equipment
Temperature raise when, can not and alarm.
Therefore, it is necessary to provide a kind of new realizing, temperature look-ahead and the microcomputer protection system alarmed are above-mentioned to solve
Problem.
【Utility model content】
Main purpose of the present utility model be to provide it is a kind of realize temperature look-ahead and the microcomputer protection system of alarm,
Relay protection function can be realized, and can substitutes radio temperature sensor reception device, realizes and sent in temperature and temperature anomaly report
It is alert, and realize giving warning in advance for temperature anomaly.
The utility model is achieved through the following technical solutions above-mentioned purpose：It is a kind of to realize that temperature look-ahead is micro- with alarming
Machine protects system, and it includes being internally provided with the microprocessor of temperature-current matched curve, connected with the microprocessor electric signal
Power supply processing module, analogue collection module, digital quantity input/output module, human-computer interaction module, the communication interface mould connect
Block, wireless signal transceiver module and the relay being connected with the digital quantity input/output module electric signal, the wireless communication
Number transceiver module wireless signal is connected with some radio temperature sensors.
Further, the analogue collection module includes power pack, voltage changer and analog-digital converter.
Further, what the analogue collection module mainly gathered is three-phase current, three-phase voltage signal.
Further, the human-computer interaction module includes keyboard input module and LCD MODULE.
Further, the communication interface module electric signal is connected with monitoring system.
Compared with prior art, the utility model it is a kind of realize temperature look-ahead with alarm microcomputer protection system and its
The beneficial effect of control method is：
1) radio temperature sensor signal is received using microcomputer protecting device, eliminates special radio temperature sensor and connect
Receiving apparatus, Microcomputer Protection can realize relay protection function, and and can substitutes radio temperature sensor reception device, realized in temperature
Send and alarmed with temperature anomaly；Microcomputer protecting device will be sent to monitoring system by the communication network of itself on temperature information, avoid
The increase of cost caused by temperature reception device is separately configured, also reduces the data communication pressure to monitoring system, improves
Operating efficiency；
2) temperature-current approximating method is used, wireless temperature sensing can not be obtained in temperature transmission period distances by realizing
During the temperature information that device is sent, temperature is predicted and alarmed in advance, improves real-time and the sensitivity of temperature detection, dropped
Low damage of the temperature anomaly to equipment.
【Brief description of the drawings】
Fig. 1 is the modularity control principle schematic of the utility model embodiment；
Fig. 2 is the main program logic block diagram representation of the utility model embodiment；
Fig. 3 is the Current Voltage conversion logic block diagram representation of the utility model embodiment；
Fig. 4 is that the radio temperature sensor of the utility model embodiment reads logic diagram schematic diagram；
Fig. 5 is that the temperature-current of the utility model embodiment is fitted logic diagram schematic diagram；
Fig. 6 is the temperature warning of the utility model embodiment and pre- alarm logic diagram schematic diagram；
Fig. 7 is the modularity control principle schematic of prior art.
【Embodiment】
Embodiment：
Fig. 1 is refer to, the present embodiment is to realize temperature look-ahead and the microcomputer protection system of alarm, and it includes inside and set
It is equipped with the microprocessor of temperature-current matched curve, the power supply processing module being connected with the microprocessor electric signal, analog quantity
Acquisition module, digital quantity input/output module, human-computer interaction module, communication interface module, wireless signal transceiver module and with
The relay of the digital quantity input/output module electric signal connection, the wireless signal transceiver module wireless signal are connected with
Some radio temperature sensors.
The power supply processing module, the power supply of main responsible protection device.The power supply processing module is electric by externally fed
Source is generally AC220V or DC220V and is transformed into device VCC power supplys by Switching Power Supply, and electric energy is provided for plant running.
The analogue collection module is mainly responsible for that outside current signal, voltage signal are acquired and converted, and it is led
Power pack, voltage changer are included, current signal and voltage signal are transformed into the microprocessor and can connect by both
The weak electric signal of receipts, and by forceful electric power signal isolation.The analogue collection module also includes analog-digital converter ADC, and simulation is believed
Number data signal is transformed into, stored in the microprocessor.The microprocessor calculates analog quantity by corresponding algorithm
Size.What the analogue collection module mainly gathered is three-phase current, three-phase voltage signal.
The digital quantity input/output module is mainly responsible for collection switching value, controls the relay output quantity.It is described to open
What pass amount mainly gathered is circuit breaker position signal, circuit breaker trolley (or isolation knife) signal, earthed switch signal etc., is controlled
The relay output quantity is mainly used for breaker open operation by relay signal, closed a floodgate, protection signal, wireless temperature
The digital outputs such as alarm signal.
The human-computer interaction module is mainly made up of two modules of key-press input and liquid crystal display, and user can pass through button
Parameter setting and data query are carried out with LCD screen.LCD screen circulation shows that electric current, voltage and wireless senser transmitted
Temperature information come etc..
The communication interface module is mainly responsible for carrying out data network communication with monitoring system.The communication interface module electricity
Signal is connected with monitoring system.The module by physical link (such as RS485 communication networks, Ethernet or other communication networks), and
(MODBUS or IEC103, IEC104 etc.) carries out data communication with the monitoring system under certain communications protocol.
The wireless signal transceiver module, it is main to be responsible for carrying out wireless data communication with the radio temperature sensor, should
The wireless signal that the radio temperature sensor received transmits is converted into data-signal and entered by the microprocessor by module
Row receives, while the data-signal of the microprocessor can also be converted into wireless signal and be sent to radio temperature sensor.
Fig. 2 is refer to, Fig. 2 is the main program logic structure of block diagram of the present embodiment, and the present embodiment realizes temperature look-ahead
With the control method of the microcomputer protection system of alarm, its step includes：
Step 1：Extraneous electric current ia, ib, ic and external voltage ua, ub, uc are gathered, and is calculated as counting by calculating conversion
Electric current IA, IB, IC is calculated with calculating voltage UA, UB, UC.
The Current Voltage conversion logic block diagram that Fig. 3 is the present embodiment is refer to, electric current, voltage acquisition are by the simulation
Measure acquisition module to convert by ADC, then the size of electric current, voltage is calculated by corresponding algorithm.
Step 2：Read the temperature signal TA of the radio temperature sensorN、TBN、TCNWith corresponding size of current IAN、
IBN、ICNAnd store and arrive corresponding buffering area ITA, ITB, ITC.
It refer to Fig. 4 and read logic diagram, the wireless communication of radio temperature sensor for the present embodiment radio temperature sensor
Number it is to be obtained by the wireless signal transceiver module, Fig. 4 indicates the temperature signal that control logic reads radio temperature sensor
While, corresponding current size this moment is also have read, and be stored in corresponding buffering area.
Step 3：The control that carried out curve fitting to temperature-current obtains the temperature-current matched curve, specific bag
Include following steps.
1) temperature value TA twice nearest in the buffering area ITA is readN、TAN-1, nearest temperature value twice in ITB
TBN、TBN-1, nearest temperature value TC twice in ITCN、TCN-1；
2) temperature value TA twice is read recentlyN、TAN-1Corresponding current value IAN、IAN-1, TBN、 TBN-1Corresponding current value
IBN、IBN-1, TCN、TCN-1Corresponding current value ICN、ICN-1；
3) rate of temperature change △ TA=TA are calculatedN-TAN-1, △ TB=TBN-TBN-1, △ TC=TCN-TCN-1；
4) calculating current square rate of change △ IA=I2AN-I2AN-1, △ IB=I2BN-I2BN-1, △ IC=I2CN-I2CN-1；
5) calculate the rate of temperature change and be worth to corresponding temperature/electric current change with the ratio of the current squaring rate of change
Rate KA=△ TA/ △ IA, KB=△ TB/ △ IB, KC=△ TC/ △ IC.
It refer to Fig. 5 and be fitted logic diagram for the present embodiment temperature-current, because the radio temperature sensor is measured
The temperature information come, it is to have much relations with the size of electric current, electric current is bigger, and heating is more serious, therefore is sent out by wireless signal
The temperature brought also can be higher, and temperature T associates with an electric current I square presence.The present embodiment uses piecewise fitting straight line
Mode be predicted, by the change △ T=T for calculating 2 temperature of last timeN-TN-1(the last temperature information TN, nearest one
Secondary adjacent last time temperature TN-1), square change △ I=I with current value during record temperature at that time2 N-I2 N-1Ratio calculation
Corresponding slope K=△ T/ △ I are obtained, three-phase obtains corresponding temperature/current changing rate respectively.
Step 4：Temperature alarming and pre-alarm, specifically comprise the following steps,
1) the temperature warning setting value Thset and the last radio temperature sensor for reading man-machine setting were transmitted
The A phase temperature TA comeN；
2) TA is judgedN>Whether Thset sets up；
3) if so, then A phases temperature anomaly alerts；If not, current A phase currents IA is then read, and according to the temperature
Degree-current fitting curve calculates A phase predicted temperatures T*AN=TAN+KA× (I2A-I2AN)；
4) A phase predicted temperatures T*A is judgedN>Whether Thset sets up；
5) if so, then A phases temperature anomaly alerts；If not, then judge B phases respectively according to step 1)~step 5)
Whether temperature anomaly alerts with C phases.
Fig. 6 is the present embodiment temperature warning and pre- alarm logic diagram, which illustrates and how to carry out temperature alarming and forecast
Alert.The temperature T of the corresponding phase read first from the radio temperature sensorNCompared with design temperature, if super
The temperature alarming that design temperature then carries out corresponding phase has been crossed, if being not above setting value, by the electric current I of this measurement,
(the transmission of the radio temperature sensor also is predicted without the temperature information sent to the current radio temperature sensor
Data break is generally 2~10 minutes), the temperature T* of predictionNThe temperature report of corresponding phase is then carried out if greater than desired temperature
It is alert.
The present embodiment realizes that the beneficial effect of microcomputer protection system of the temperature look-ahead with alarming is：
1) radio temperature sensor signal is received using microcomputer protecting device, eliminates special radio temperature sensor and connect
Receiving apparatus, Microcomputer Protection can realize relay protection function, and and can substitutes radio temperature sensor reception device, realized in temperature
Send and alarmed with temperature anomaly；Microcomputer protecting device will be sent to monitoring system by the communication network of itself on temperature information, avoid
The increase of cost caused by temperature reception device is separately configured, also reduces the data communication pressure to monitoring system, improves
Operating efficiency；
2) temperature-current approximating method is used, wireless temperature sensing can not be obtained in temperature transmission period distances by realizing
During the temperature information that device is sent, temperature is predicted and alarmed in advance, improves real-time and the sensitivity of temperature detection, dropped
Low damage of the temperature anomaly to equipment.
Above-described is only some embodiments of the present utility model.For the person of ordinary skill of the art,
On the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these belong to this practicality
New protection domain.
Claims (5)
1. a kind of realize temperature look-ahead and the microcomputer protection system of alarm, it is characterised in that：It includes being internally provided with temperature
The microprocessor of degree-current fitting curve, the power supply processing module being connected with the microprocessor electric signal, analog acquisition mould
Block, digital quantity input/output module, human-computer interaction module, communication interface module, wireless signal transceiver module and with the number
The relay of word amount input/output module electric signal connection, the wireless signal transceiver module wireless signal are connected with some nothings
Line temperature sensor.
2. as claimed in claim 1 realize temperature look-ahead and the microcomputer protection system of alarm, it is characterised in that：The mould
Analog quantity acquisition module includes power pack, voltage changer and analog-digital converter.
3. as claimed in claim 1 realize temperature look-ahead and the microcomputer protection system of alarm, it is characterised in that：The mould
What analog quantity acquisition module mainly gathered is three-phase current, three-phase voltage signal.
4. as claimed in claim 1 realize temperature look-ahead and the microcomputer protection system of alarm, it is characterised in that：The people
Machine interactive module includes keyboard input module and LCD MODULE.
5. as claimed in claim 1 realize temperature look-ahead and the microcomputer protection system of alarm, it is characterised in that：It is described logical
Communication interface modular telecommunications number are connected with monitoring system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720212840.3U CN206698012U (en) | 2017-03-07 | 2017-03-07 | It is a kind of to realize temperature look-ahead and the microcomputer protection system of alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720212840.3U CN206698012U (en) | 2017-03-07 | 2017-03-07 | It is a kind of to realize temperature look-ahead and the microcomputer protection system of alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206698012U true CN206698012U (en) | 2017-12-01 |
Family
ID=60443108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720212840.3U Active CN206698012U (en) | 2017-03-07 | 2017-03-07 | It is a kind of to realize temperature look-ahead and the microcomputer protection system of alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206698012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877502A (en) * | 2017-03-07 | 2017-06-20 | 江苏国网自控科技股份有限公司 | A kind of microcomputer protection system and its control method for realizing temperature look-ahead and alarm |
-
2017
- 2017-03-07 CN CN201720212840.3U patent/CN206698012U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877502A (en) * | 2017-03-07 | 2017-06-20 | 江苏国网自控科技股份有限公司 | A kind of microcomputer protection system and its control method for realizing temperature look-ahead and alarm |
| CN106877502B (en) * | 2017-03-07 | 2023-12-01 | 江苏国网自控科技股份有限公司 | Microcomputer protection system for realizing temp. advance prediction and alarm and its control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104374964A (en) | Electric energy meter capable of measuring residual currents | |
| CN206628714U (en) | Low voltage switch equipment | |
| CN203205851U (en) | Anti-thunder remote early warning monitoring box | |
| CN203850925U (en) | Communicator for lightning protection remote early-warning monitoring box | |
| CN204241594U (en) | A kind of real-time monitoring system for substation transformer operating condition | |
| CN105911344A (en) | Intelligent electric energy meter supporting electric leakage protection | |
| CN201904560U (en) | Intelligent environment-friendly solid fully-insulated looped network cabinet | |
| CN204497848U (en) | A kind of based on man-machine interface LV Distribution Monitoring System | |
| CN209027683U (en) | Device temperature monitoring device, equipment and its system in a kind of high-tension switch cabinet | |
| CN206698012U (en) | It is a kind of to realize temperature look-ahead and the microcomputer protection system of alarm | |
| CN201210092Y (en) | Temperature monitoring device for switch cabinet contact tip | |
| CN204154810U (en) | A kind of electric energy meter measuring residual current | |
| CN204155435U (en) | A kind of wireless temperature acquisition system | |
| CN212304350U (en) | Intelligent distribution box | |
| CN206099149U (en) | Control device suitable for medium voltage switchgear | |
| CN106877502A (en) | A kind of microcomputer protection system and its control method for realizing temperature look-ahead and alarm | |
| CN208738688U (en) | A kind of multifunctional unit distribution system | |
| CN106500872A (en) | A kind of wireless temperature measurement system for transformer station's on-line monitoring | |
| CN204947737U (en) | A kind of Intelligent integral switch apparatus system | |
| CN202918061U (en) | Integrated power distribution terminal base on ColdFire | |
| CN108061534A (en) | A kind of novel electric power circuit Snow Thickness monitors system | |
| CN204479698U (en) | Wireless networking formula high precision fast line selection device | |
| CN208133562U (en) | Online mold cooling circuit monitors system | |
| CN207352111U (en) | One kind is based on CAN communication cable-type fault locator | |
| CN201450320U (en) | Intelligent microcomputer integrated protective device with temperature monitoring function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |