CN201852918U - Device for online monitoring of actuation time response of sulfur hexafluoride high-voltage circuit breaker - Google Patents
Device for online monitoring of actuation time response of sulfur hexafluoride high-voltage circuit breaker Download PDFInfo
- Publication number
- CN201852918U CN201852918U CN2010206125154U CN201020612515U CN201852918U CN 201852918 U CN201852918 U CN 201852918U CN 2010206125154 U CN2010206125154 U CN 2010206125154U CN 201020612515 U CN201020612515 U CN 201020612515U CN 201852918 U CN201852918 U CN 201852918U
- Authority
- CN
- China
- Prior art keywords
- unit
- wireless network
- zigbee wireless
- network communication
- slave computer
- 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.)
- Expired - Lifetime
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 37
- 230000004044 response Effects 0.000 title abstract description 4
- 229910018503 SF6 Inorganic materials 0.000 title abstract 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title abstract 2
- 229960000909 sulfur hexafluoride Drugs 0.000 title abstract 2
- 238000004891 communication Methods 0.000 claims abstract description 130
- 238000012545 processing Methods 0.000 claims abstract description 27
- 238000013500 data storage Methods 0.000 claims abstract description 15
- 238000012806 monitoring device Methods 0.000 claims description 15
- 210000000352 storage cell Anatomy 0.000 claims description 13
- 238000007726 management method Methods 0.000 abstract description 6
- 230000036541 health Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000003993 interaction Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000069 prophylactic effect Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000003862 health status Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000005039 memory span Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Testing And Monitoring For Control Systems (AREA)
Abstract
The utility model provides a device for online monitoring of the actuation time response of a sulfur hexafluoride high-voltage circuit breaker, which comprises a lower computer and an upper computer, wherein the lower computer comprises a control and processing unit, a data acquisition unit, a data storage unit and a lower computer Zigbee wireless network communication unit, and the data acquisition unit, the data storage unit and the lower computer Zigbee wireless network communication unit are respectively connected with the control and processing unit; the upper computer comprises a monitoring center server unit and an upper computer Zigbee wireless network communication unit, the monitoring center server unit is connected with the upper computer Zigbee wireless network communication unit through communication; and the lower computer and the upper computer are connected through communication, by the upper computer Zigbee wireless network communication unit through the lower computer Zigbee wireless network communication unit. The device can be used for realizing the health management of equipment.
Description
Technical field
The utility model provides a kind of SF 6 high-voltage circuit breaker operate time cheracteristic on-line monitoring device, and this device belongs to signal Processing and monitoring class technical field.
Background technology
SF
6Primary cut-out is as a kind of important power equipment in the electric system, SF
6Primary cut-out makes it be widely used at the high-tension electricity network with the insulation and the arc extinction performance of excellence, is also increasing year by year in the use amount of China SF6 isolating switch.Safe operation to system is important unusually, and its health status becomes the focus that grid company is paid close attention in recent years gradually.In the middle of the electric system primary equipment, primary cut-out is the large scale electrical power unit that is only second to generator and transformer, and the quantity that needs comes before the two with the scale that investment is installed.The health status of primary cut-out self, reliability of operation are directly connected to the safety and stablization of electric system, accidents such as many great device damage, power failure much all be since the operation of primary cut-out not normal due to.International conference on large HV electric systems respectively 1974 ~ 1977 years and 1988 ~ 1991 years twice worldwide to 63KV and above SF
6The reliability of primary cut-out has been done worldwide large-scale investigation, and investigation result all shows, SF
6The mechanical fault of primary cut-out operating mechanism and SF
6The gas-insulated fault is occupied quite great proportion in all faults, the summation of the probability of happening of these two kinds of faults accounts for 51.2% in major failure, has accounted for 79% especially in minor failure.Domestic to SF
6In a lot of investigation that the probability of malfunction of each parts carries out in the primary cut-out, the result shows mechanical fault and SF
6The gas-insulated fault is occupied quite great proportion among all faults.At present, the operate time cheracteristic parameter testing is the important parameter test that operation power department carries out when prophylactic repair, the method of this regular preventive trial is understood the operation characteristic of isolating switch, not only expends huge manpower and financial resources, has increased the life cycle cost of equipment.In order to ensure the safe operation of isolating switch, the isolating switch operate time cheracteristic is carried out on-line monitoring very important meaning.
Along with development of Communication Technique, present available means of communication is a lot.According to the concrete condition of the distribution automation system of being implemented, each Utilities Electric Co. has selected different communication modes for use both at home and abroad, and its effect and benefit have nothing in common with each other.Abroad, Japan be distribution network automated develop than faster the country, its communication mode mainly is to utilize telecommunication cable and distribution line carrier to transmit distribution network automated signal, and in countries such as America and Europes, but extensively adopts the wire communication mode.Domestic, power supply administrations such as Shanghai, Shijiazhuang, Dalian, Nanjing, Zhengzhou, Wuhan, Guangzhou have all carried out the distribution network automated project of construction of certain scale and have attempted, the communication mode that adopts has distribution carrier wave, one point for multiple address spread spectrum microwave, optical fiber communication, cable communication, wireless digital broadcasting station etc., but effect is unsatisfactory.At SF6 primary cut-out control point distribution situation, adopt the remote monitoring of traditional cable network very difficult, even realize that cost, maintenance cost are also quite high.Therefore the innovation of isolating switch supervisory system is imperative.
China national grid company in 2009 with offer as a tribute clean energy resource, promote economic development, the service society harmony is basic mission, proposed to base oneself upon autonomous innovation, accelerating to build with extra-high voltage grid is key rack, electric network coordinations at different levels development has the developing goal of strong intelligent grid of the unification of informationization, digitizing, robotization, interactive feature.Therefore, to SF
6The state of primary cut-out is carried out intellectual monitoring and is implemented health control, for improving Automation of Electric Systems level and reliability, in time solves failure problems, avoids occurring electric power accident, saves property loss and is significant.At present, the operate time cheracteristic parameter testing is the important parameter test that operation power department carries out when prophylactic repair, the method of this regular preventive trial is understood the operation characteristic of isolating switch, not only expends huge manpower and financial resources, has also increased the life cycle cost of equipment.In order to ensure the safe operation of isolating switch, the isolating switch operate time cheracteristic is carried out on-line monitoring very important meaning.
At present, when the isolating switch prophylactic repair, use the operate time cheracteristic parameter of killer switch tester for testing operating characteristics Test Switchboard under off-line state both at home and abroad mostly.The method of this preventive trial is come the operation characteristic of test both opens device, not only expends huge manpower and financial resources, has increased the life cycle cost of equipment, and frequent operation can reduce the reliable in action of isolating switch, brings certain negative effect.Simultaneously, isolating switch maintenance record data are finished by execute-in-place and maintenance personal's hand-kept at every turn, are unfavorable for the preservation of data and to the analysis of breaker operating characteristic historic state.
Summary of the invention
Goal of the invention: the purpose of this utility model is to solve the following technical matters that exists in the isolating switch prophylactic repair method in the past: expend huge manpower and financial resources, increased the life cycle cost of equipment, and frequent operation can reduce the reliable in action of isolating switch, brings certain negative effect.Simultaneously, isolating switch maintenance record data are finished by execute-in-place and maintenance personal's hand-kept at every turn, are unfavorable for the preservation of data and to the analysis of breaker operating characteristic historic state.
Technical scheme: the present invention is achieved by the following technical solutions:
A kind of SF 6 high-voltage circuit breaker operate time cheracteristic on-line monitoring device is characterized in that: described device comprises slave computer and host computer two parts; Described slave computer comprises control and processing unit, data acquisition unit, data storage cell and slave computer Zigbee wireless network communication unit, and data acquisition unit, data storage cell and slave computer Zigbee wireless network communication unit all connect control and processing unit; Described host computer comprises monitoring central server unit and host computer Zigbee wireless network communication unit, and the monitoring central server unit carries out communication with host computer Zigbee wireless network communication unit and is connected; Described slave computer carries out communication by slave computer Zigbee wireless network communication unit with host computer Zigbee wireless network communication unit with host computer two parts and is connected.
Also be provided with interface and communication modes in the described slave computer and choose unit and RS485 communication unit, slave computer Zigbee wireless network communication unit is chosen the unit by interface and communication modes and is connected to control and processing unit, and the RS485 communication unit is also chosen the unit by interface and communication modes and is connected to control and processing unit.
The monitoring central server unit carries out communication with host computer Zigbee wireless network communication unit by the RS232 serial ports and is connected.
Described data acquisition unit is the time measuring circuit unit.
Described slave computer also comprises control output unit, digital display unit and warning indicating member; Described control output unit, digital display unit and warning indicating member all are connected to control and processing unit.
Advantage and effect: the utility model provides a kind of SF 6 high-voltage circuit breaker operate time cheracteristic on-line monitoring device, it is characterized in that: described device comprises slave computer and host computer two parts; Described slave computer comprises control and processing unit, data acquisition unit, data storage cell and slave computer Zigbee wireless network communication unit, and data acquisition unit, data storage cell and slave computer Zigbee wireless network communication unit all connect control and processing unit; Described host computer comprises monitoring central server unit and host computer Zigbee wireless network communication unit, and the monitoring central server unit carries out communication with host computer Zigbee wireless network communication unit and is connected.
Electronic technology and development of computer make and realize that isolating switch operate time cheracteristic parameters number formula on-line monitoring becomes possibility.
The utility model provides a kind of SF
6Primary cut-out operate time cheracteristic on-line monitoring device.This device adopts many interfaces gating mode to finish distinct interface SF
6The connection work of primary cut-out, utilize double nip to select communication modes to finish the transmission work of data, monitor the state of switch in real time, accurately measure when being implemented in switch branch, closing operation and close branch time parameter, for the defective state of switch motion time parameter, go out alerting signal with the LED indicating concurrent, simultaneously failure message is delivered to host computer.Centralized procurement integrates, storage, inquiry, communication, health management function, on-the-spot many SF of monitoring in real time
6The switch motion time of primary cut-out, adopt Zigbee wireless network communication technology that monitoring result quick and precisely is sent to the monitor network center.
This device can be monitored SF in real time
6The primary cut-out operate time cheracteristic, and can be to SF
6High-voltage circuit-breaker status and performance are carried out comprehensive assessment, realize the health control of equipment, thereby improve Automation of Electric Systems level and reliability, effectively prevent electric system because SF
6The caused disaster of primary cut-out body fault.Wherein relate to data acquisition technology, signal processing technology, advanced control technology and Zigbee wireless network communication technology.Zigbee wireless network communication technology is corresponding Zigbee wireless network communication module in system hardware structure, adopts Star Network, utilizes Zigbee agreement MANET technology finishing device communication work.
The utility model is at above problem, a kind of SF of proposition
6The on-line monitoring network equipment of primary cut-out operate time cheracteristic.Slave computer Surveillance center monitors in real time to whole isolating switch control point.And monitor data is sent to the ipc monitor center by Zigbee wireless network communication or RS485 cable network communication modes with data in real time, realize the healthy integrated management of equipment at host computer.
Concrete advantage of the present utility model and beneficial effect are as follows:
1. system adopts many interfaces gating mode technology to realize SF
6The on-line monitoring of primary cut-out operate time cheracteristic, system's versatility is good;
2. system adopts Zigbee wireless network communication and two kinds of interface modes of RS485 communication to carry out communication, alternative communication interface mode, dirigibility height.
3. choose the low-cost requirement that multichannel toggle switch, Zigbee wireless network communication and the RS485 communication etc. adopted the unit have realized this system by interface and communication modes.
4. the networking of Zigbee wireless network module is led in system, can realize the MANET communication modes of free frequency range, and the characteristics such as low-power consumption of itself make this device have characteristics such as low-power consumption, reliability height.
5. system wiring is simple, and is easy for installation, and it is little to take up an area of the space, has highly reliable, long-life, strong anti-electromagnetic interference function.
Description of drawings:
Fig. 1 hardware configuration block diagram of the present invention;
Fig. 2 CPU and Zigbee wireless communication module connection layout;
Fig. 3 multi-way switch gating control structure figure;
Fig. 4 mode gating process flow diagram;
Fig. 5 main program flow chart;
Fig. 6 system break process flow diagram;
Fig. 7 upper computer software structural representation.
Embodiment:The present invention is described further below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model relates to a kind of SF 6 high-voltage circuit breaker operate time cheracteristic on-line monitoring device, it is characterized in that: described device comprises slave computer and host computer two parts; Described slave computer comprises control and processing unit, data acquisition unit, data storage cell and slave computer Zigbee wireless network communication unit, and data acquisition unit, data storage cell and slave computer Zigbee wireless network communication unit all connect control and processing unit; Described host computer comprises monitoring central server unit and host computer Zigbee wireless network communication unit, and the monitoring central server unit carries out communication with host computer Zigbee wireless network communication unit and is connected; Described slave computer carries out communication by slave computer Zigbee wireless network communication unit with host computer Zigbee wireless network communication unit with host computer two parts and is connected.Wherein, lower computer hardware is responsible for the gating of interface and communication modes, collection, processing and the transmission of data, that is to say that interface and communication modes choose the gating work that interface connected mode and communication modes are finished in the unit, control and processing unit control data collecting unit image data, and deposit data in data storage cell, after storage finishes, call the data of data storage cell and handle and reasoning, the data after handling are sent to host computer by Zigbee wireless network communication unit.Accordingly, software configuration also is divided into slave computer and host computer two parts.Slave computer software is responsible for driving the hardware of slave computer and is finished the data acquisition of on off state and actuation time, to The data data extract and the binding time correction algorithm of gathering, realizes the monitoring of acting characteristic time parameter; At last, slave computer software will be monitored result by Zigbee wireless network communication unit and be sent to the ipc monitor center.Upper computer software is responsible for the data communication with slave computer, and sets up the management of human-computer interaction interface and realization monitoring information, sets up switch motion time response parameter database, realizes functions such as demonstration, storage, inquiry, printing.
Also be provided with interface and communication modes in the described slave computer and choose unit and RS485 communication unit, slave computer Zigbee wireless network communication unit is chosen the unit by interface and communication modes and is connected to control and processing unit, and the RS485 communication unit is also chosen the unit by interface and communication modes and is connected to control and processing unit.
The monitoring central server unit carries out communication with host computer Zigbee wireless network communication unit by the RS232 serial ports and is connected.
Described data acquisition unit is the time measuring circuit unit.
Described slave computer also comprises control output unit, digital display unit and warning indicating member; Described control output unit, digital display unit and warning indicating member all are connected to control and processing unit.
This scheme can be used for SF under the situation of not destroying breaker body
6The on-line monitoring of primary cut-out operate time cheracteristic.This device is made of hardware configuration and software configuration two large divisions.This hardware configuration is divided into slave computer and host computer two parts, and the relation between it is: slave computer is installed in on-the-spot SF
6Under the high-voltage breaker mechanism sales counter, host computer is installed on the master-control room power measurement sales counter, realizes communication by the Zigbee wireless communication module between them;
The utility model is a key equipment of realizing the real-time monitor network of isolating switch, adopts 8 AVR Single Chip Microcomputer (SCM) system cheaply, and whole hardware circuit figure as shown in Figure 1.This device is a master cpu with the ATMEGA128 single-chip microcomputer, and it is responsible for finishing collection, processing, storage and the various interface control of overall signal.Signal acquisition module is finished the on-line monitoring of on/off switch switch motion, by master cpu the collection and the storage chip of state is finished the gage work of on/off switch time to the storage of state, utilizes SF
6Primary cut-out is auxiliary often open with the state of normally closed contact monitoring switch and actuation time parameter, the time of in Single Chip Microcomputer (SCM) program, asking for switch motion, show this value in real time and data be sent to host computer with charactron then by software algorithm.By setting threshold, when surpassing pre-set threshold value, can alarm notice person skilled handle the detected time characteristic parameters of detector.And aspect communication interface, monitoring device can select slave computer Zigbee wireless network communication unit and RS485 communication dual mode and host computer server to finish communication work, master cpu is connected by serial ports with Zigbee wireless network communication module, and connection layout as shown in Figure 2.When selecting Zigbee wireless network communication transmission data, adopt the hub-and-spoke configuration networking, at slave computer and host computer the transmitting-receiving that Zigbee wireless network communication module realizes data is installed simultaneously, host computer Zigbee wireless network communication module realizes and the linking of monitoring management machine with the serial ports form.When employing RS485 communication realized networking, the network using loop network was set up, and the realization of the employing RS485 of Surveillance center RS 232 converter links with host computer.This device is the multifunctional monitoring device, and it can be finished and being connected of multiple distinct interface device, and the selection of interface is then controlled by the multichannel toggle switch.By the control of multichannel toggle switch being finished the gating control of multiple interfaces mode.Simultaneously, communication modes is also selected by the multichannel toggle switch, utilizes multi-way switch to realize the work of choosing of multi-function device communication modes and connected mode, has realized characteristics such as the economy of this equipment, efficient and practicality.Below just each functional unit is described in detail.
It is the work of choosing of being finished measurement mechanism interface mode and monitoring device communication modes by the multichannel toggle switch that described interface and communication modes are chosen the unit, and its gating work synoptic diagram as shown in Figure 3.Usually, the three-phase electricity circuit connected mode of closing sub-coil and monitor have integral body be connected, distributing connects and is connected with isolated.Utilize three road toggle switches to finish the control that the three-phase electricity circuit closes three kinds of connected modes of sub-coil in this monitoring device, just corresponding connected mode is chosen in representative when a certain position is high level in these three.For example, when being set to 100, toggle switch then represents to choose the monoblock type connected mode, promptly three road line of electric force are controlled by a way switch, then represent to choose the isolated connected mode and measure when toggle switch is set to 001, and promptly three road line of electric force are controlled respectively by three-way switch.In like manner, the work of choosing of four-way switch control communication modes, if put 1, then Zigbee wireless network communication mode is selected in expression for use, otherwise selects the RS485 communication modes for use.The on/off switch action time can produce the 220V trigger voltage, and+12V power supply inserts an auxiliary end of often opening with normally closed contact, simultaneously, the output of the other end is inserted the single-chip microcomputer input pin through optocoupler and filtering circuit realize monitoring on off state.Can trigger ATMEGA128 when on/off switch moves interrupts.Responsive state is gathered by one group of normally-open normally-close switch control and is inserted master cpu, and when on/off switch produces when closing the branch action, normally closed switch disconnects, and produces this moment to interrupt, and begins to read the normally closed switch state and deposits in the storage chip.At last, just can calculate the on/off switch time characteristic parameters by the state variable that reads in the storage chip.
Described interface control mode gating unit circuit is one four road toggle switch, its structure control figure as shown in Figure 3, institute's controlled quentity controlled variable corresponding interface gating kind and communication modes is respectively chosen interface.The time measuring unit circuit is made up of normally closed switch, switching-on resistance metering circuit, coil current metering circuit and digital signal modulate circuit, is responsible for gathering the actuating signal of on/off switch.By the measurement of electric shock state being judged the state of on/off switch, if can drive the look-at-me that a series of actions of this circuit can trigger ATMEGA128 thereby on/off switch moves.Data storage cell is connected to form by the SPI mouth by AT45DB642D storage chip and ATMEGA128.The AT45DB642D memory span is 64Mbit, 8192 pages of memory configurations, clock frequency 66MHz, the supply voltage scope be 2.7V to 3.6V, work minimum temperature be-40 ° of C, maximum temperature is 85 ° of C.AT45DB642D also comprises two SRAM, and buffer zone allows to receive data, and can plan again at the primary memory page or leaf, and read-write continuous data stream.Three aspects that this storage chip comprises the processing of data: read, modification, write operation, this chip all has very important use aspect commercial and industrial.
Described control and processing unit based on ATmega128 has following characteristics: the In-System Programmable Flash of 128K byte (has the ability that can also read in the process of writing, be RWW), the EEPROM of 4K byte, the SRAM of 4K byte, 53 general purpose I/O mouth lines, 32 general purpose working registers, real-time clock RTC, 4 timer/counters (T/C) that have comparison pattern and PWM function flexibly, two USART, two line interface TWI of byte-oriented, 8 path 10 position ADC (having optional programmable-gain), programmable watchdog timer with sheet internal oscillator, the SPI serial port, with the JTAG test interface of IEEE 1149.1 standard compatibilities (this interface can also be used for debugging on the sheet simultaneously), and the six kinds of battery saving modes that can select by software.
Described storage unit is finished the access work to the normally closed switch state, what adopt in this device is the AT45DB642D storage chip, it finishes function mainly is access work to the normally closed switch folding condition, and data are stored according to the standard storage form so that carry out the inquiry and the work of treatment of data.Utilize isolating switch to assist and often open and the state of normally closed contact monitoring switch and the control of time-delay, in Single Chip Microcomputer (SCM) program, extract the time parameter of compute switch action by state, show in real time and send it to host computer with charactron and handle, if monitoring actuation time can report to the police when parameter surpasses pre-set threshold value, monitor is indicated alarm condition by LED, and the result is shown and output alarm information at host computer.Use Zigbee wireless network communication and RS485 communication modes to carry out data transmission, expense is lower, reliability height, the mode of connection flexibly, can realize the high-speed transfer of data satisfying the requirement of system.According to field condition, can select a kind of in two kinds of communication modes.
Communicated by letter with slave computer by the host computer communication thread and form in described Zigbee wireless network communication unit, being connected of Zigbee and slave computer is to realize by the serial ports connected mode, and is the reception work that realizes data by 232 connecting interfaces between host computer server and the Zigbee.Link to each other by the Zigbee wireless network between them, the transmission and the acceptance of slave computer data is responsible in slave computer communication.Host computer is responsible for accepting data and the order of transmission PC control that slave computer transmits; Adopt the Zigbee wireless network communication protocol to realize the high speed reliable transmission of data between host computer and slave computer communication thread.
The course of work of whole device is: control and processing unit control data collecting unit based on ATMEGA128 in the slave computer, and the normally closed switch folding condition is stored in the data storage cell, the state parameter that control module calls data storage cell carries out the calculating of signal characteristic collection and deadline characteristic parameter, simultaneously, realize SF by control the time characteristic parameters pre-set threshold value
6The judgement of primary cut-out working condition is sent to host computer with last resulting data message again, carries out reasoning and control, comprehensive assessment equipment performance and life-span.
The present invention is a kind of SF
6Primary cut-out operate time cheracteristic on-line monitoring multi-function device, software design are divided into slave computer and two parts of host computer.
Slave computer software is based on the control and the handling procedure of ATMEGA128 chip; be responsible for the collection of control slave computer switch state signal parameter; when on/off switch closes branch state or deciliter state, all can control normally closed switch and produce the saltus step level, thereby and saltus step level port protects CPU to be operated under the normal mode itself and master cpu Signal Spacing with optocoupler.Program is finished reading of on/off switch status data and storage work by hardware interrupts, thereby promptly can the triggering level saltus step make master cpu trigger interruption when the on/off switch state that opens the light changes.Main program flow chart as shown in Figure 5, program initialization and be provided with that to interrupt flag Temp be 0, this moment, program was in the circular wait state, by interrupt flag whether set judge whether the collection storage work of completion status repeatedly, when state acquisition work is finished, interrupt flag Temp and can put 1, time characteristic parameters is asked in status data and calculating that this moment, master routine can read in the storer, and carries out respective handling and judgement, is sent to host computer and carries out respective handling.Just enter alarm mode in case exceed threshold values.The mode of this device deadline characteristic parameter test mainly is to trigger by hardware interrupts, when the on/off switch switch motion, can drive the corresponding actions of normally closed switch in this device, and the connection gating mode between switch and the master cpu is a down trigger, when moving, on/off switch can trigger interruption, thereby enter interrupt handling routine, the down trigger program flow diagram is mainly finished reading of on off state data and storage work by timer as shown in Figure 6 in the down trigger program.
Actuation time, the selected communication modes of monitoring of time response can be two kinds of Zigbee wireless network communication and 485 communications, the 485th, a kind of general-purpose interface in the power industry, here just be not described, below main characteristics and the realization that Zigbee wireless network communication mode is discussed.Select for use Zigbee wireless network communication module can reach the advantage of aspects such as low-power consumption, low cost and MANET.The main flow process of its work is: basic network parameter at first is set, owing to consider the purpose that reduces power consumption, we will make node can enter band internal memory sleep mode pattern at one's leisure, and this need be provided with relevant parameters.Network parameter will begin a series of initial work after setting completed, initialization system, initialization pilot lamp, initialization sensor, start small-sized task system of BOS at last, our program is just started working under the scheduling of this mini-system then, enter different event handling functions, here the transmission work of main deadline characteristic parameter.According to the Zigbee protocol stack, any Zigbee network node all must be Co-dinator, one of Router and End Device, this is a kind of network layer notion, determined the topological form of network, according to the characteristics of three kinds of node types, and our actual needs, the Zigbee wireless network communication module that we are provided with in this device is the Co-dinator type, and the module that is connected with the host computer server is an End Device type.
Described upper computer software adopts VC++6.0 to write, and utilizes SQL Server 2000 exploitation background data bases, and it comprises man-machine interaction, Zigbee wireless network communication and database three parts; Relation between it is: Zigbee wireless network communication module is accepted the slave computer data, and the result is saved to database, after data were preserved and finished, the system call database data carried out intelligent inference, fail result is carried out alarm, thereby realize man-machine interaction.Human-computer interaction function allows operating personnel to check the historical data of equipment operation in the database and realizes equipment is controlled to the slave computer transmitting control parameters by the wireless line communication module of Zigbee.The upper computer software structure as shown in Figure 7.This man-machine interaction partly adopts large crystal screen to show, support keyboard, mouse and touch-screen input, it is responsible for the demonstration of data and waveform and provides controlled variable that window is set, and realizes the mutual of staff and system, and Zigbee wireless network communication module realizes the transmission and the reception of data.This database section storage monitoring information, and realize functions such as management and inquiry.The workflow of upper computer software is: at first be connected with the slave computer of specifying numbering after managerial personnel land, and send the controlled variable that managerial personnel set to slave computer, slave computer is carried out Remote configuration; When isolating switch is failure to actuate, slave computer will send to host computer by the Zigbee wireless network with time characteristic parameters according to controlled variable timing acquiring on off state information, and host computer shows the information that receives and information is preserved into database.When isolating switch moved, slave computer was gathered SF in real time
6Primary cut-out temporal characteristics information is also handled data and is stored in ATMEGA128, send to host computer by the Zigbee wireless network at last, host computer shows the calculation of parameter result that receives and intelligent inference result and information preserved into database, simultaneously, and in conjunction with SF
6The primary cut-out historical information adopts the equipment evaluation theory, the estimation device performance.Isolating switch when action, the machine performance of the next function real-time intelligent monitoring equipment and electric state information, and coupling system information carries out reasoning, thus realize SF
6The monitoring of primary cut-out and health control.
Claims (5)
1. SF 6 high-voltage circuit breaker operate time cheracteristic on-line monitoring device, it is characterized in that: described device comprises slave computer and host computer two parts; Described slave computer comprises control and processing unit, data acquisition unit, data storage cell and slave computer Zigbee wireless network communication unit, and data acquisition unit, data storage cell and slave computer Zigbee wireless network communication unit all connect control and processing unit; Described host computer comprises monitoring central server unit and host computer Zigbee wireless network communication unit, and the monitoring central server unit carries out communication with host computer Zigbee wireless network communication unit and is connected; Described slave computer carries out communication by slave computer Zigbee wireless network communication unit with host computer Zigbee wireless network communication unit with host computer two parts and is connected.
2. a kind of SF 6 high-voltage circuit breaker operate time cheracteristic on-line monitoring device according to claim 1, it is characterized in that: also be provided with interface and communication modes in the described slave computer and choose unit and RS485 communication unit, slave computer Zigbee wireless network communication unit is chosen the unit by interface and communication modes and is connected to control and processing unit, and the RS485 communication unit is also chosen the unit by interface and communication modes and is connected to control and processing unit.
3. a kind of SF 6 high-voltage circuit breaker operate time cheracteristic on-line monitoring device according to claim 1 is characterized in that: the monitoring central server unit carries out communication with host computer Zigbee wireless network communication unit by the RS232 serial ports and is connected.
4. a kind of SF 6 high-voltage circuit breaker operate time cheracteristic on-line monitoring device according to claim 1, it is characterized in that: described data acquisition unit is the time measuring circuit unit.
5. a kind of SF 6 high-voltage circuit breaker operate time cheracteristic on-line monitoring device according to claim 1 is characterized in that: described slave computer also comprises control output unit, digital display unit and warning indicating member; Described control output unit, digital display unit and warning indicating member all are connected to control and processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206125154U CN201852918U (en) | 2010-11-18 | 2010-11-18 | Device for online monitoring of actuation time response of sulfur hexafluoride high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206125154U CN201852918U (en) | 2010-11-18 | 2010-11-18 | Device for online monitoring of actuation time response of sulfur hexafluoride high-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201852918U true CN201852918U (en) | 2011-06-01 |
Family
ID=44095306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206125154U Expired - Lifetime CN201852918U (en) | 2010-11-18 | 2010-11-18 | Device for online monitoring of actuation time response of sulfur hexafluoride high-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201852918U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245910A (en) * | 2013-05-03 | 2013-08-14 | 北京航空航天大学 | Online monitor for brake closing and separating time of high-voltage switch |
| CN104062578A (en) * | 2014-05-27 | 2014-09-24 | 中冶天工上海十三冶建设有限公司 | Actuation time measuring method for circuit breakers arranged in columns |
| CN105047453A (en) * | 2015-07-02 | 2015-11-11 | 国家电网公司 | Circuit breaker operation control instrument for circuit breaker on-off time control and operation method |
| CN105116259A (en) * | 2015-08-31 | 2015-12-02 | 北京飞利信电子技术有限公司 | Actuation time detection apparatus, method and system of power protection device |
-
2010
- 2010-11-18 CN CN2010206125154U patent/CN201852918U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245910A (en) * | 2013-05-03 | 2013-08-14 | 北京航空航天大学 | Online monitor for brake closing and separating time of high-voltage switch |
| CN104062578A (en) * | 2014-05-27 | 2014-09-24 | 中冶天工上海十三冶建设有限公司 | Actuation time measuring method for circuit breakers arranged in columns |
| CN104062578B (en) * | 2014-05-27 | 2016-10-26 | 中冶天工上海十三冶建设有限公司 | A kind of breaker actuation Method Of Time Measurement installed in column |
| CN105047453A (en) * | 2015-07-02 | 2015-11-11 | 国家电网公司 | Circuit breaker operation control instrument for circuit breaker on-off time control and operation method |
| CN105116259A (en) * | 2015-08-31 | 2015-12-02 | 北京飞利信电子技术有限公司 | Actuation time detection apparatus, method and system of power protection device |
| CN105116259B (en) * | 2015-08-31 | 2019-01-18 | 北京飞利信电子技术有限公司 | Actuation time detection device, the method and system of power protection unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101236225B (en) | Electric network transformer monitoring device monitoring method | |
| CN201527450U (en) | A remote electrical energy metering system | |
| CN102290865A (en) | Integrated intelligent unit of intelligent substation | |
| CN103023149A (en) | Intelligent power distribution terminal and intelligent power distribution system based on IEC61850 | |
| CN102437650A (en) | Intelligent electric power distribution system | |
| CN202978423U (en) | Transformer station distributed network type remote control intelligent terminal | |
| CN204758748U (en) | Cubical switchboard intelligent integrated monitoring devices | |
| CN202975216U (en) | Automatic collector test tool system | |
| CN201852918U (en) | Device for online monitoring of actuation time response of sulfur hexafluoride high-voltage circuit breaker | |
| CN104993601A (en) | Box-type substation remote control system | |
| CN203788045U (en) | Intelligent interface device for primary equipment in transformer station | |
| CN202475013U (en) | Intelligent power distribution device | |
| CN201477418U (en) | Microcomputer protection measuring and controlling device | |
| CN202524166U (en) | On-line monitoring and protection device used in feeder automation system | |
| CN102130505A (en) | High-voltage switch controller with metering function | |
| CN205485522U (en) | Energy efficiency management system | |
| CN110568258A (en) | Intelligent metering terminal | |
| CN202009265U (en) | High-voltage switch controller with metering function | |
| CN214622998U (en) | Intelligent sensing terminal for district containing edge calculation by utilizing 5G communication | |
| CN110086261B (en) | Industrial feeder line distribution terminal | |
| CN202103489U (en) | Intelligent agricultural network power distribution monitoring system | |
| CN210894498U (en) | Intelligent metering terminal | |
| CN204271740U (en) | A kind of data collection station of duplicate supply input | |
| CN209488262U (en) | A kind of electric power network information integral monitoring management platform | |
| CN111127862A (en) | Water affair centralized meter reading system and operation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MAINTENANCE BRANCH OF LIAONING ELECTRIC POWER CO., Free format text: FORMER OWNER: SHENYANG ULTRA HV BUREAU OF NORTHEAST CHINA GRID COMPANY LTD. Effective date: 20121225 Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121225 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121225 Address after: 110003 Liaoning Province glorious Street Heping District of Shenyang City No. 21 Patentee after: Maintenance Branch, Liaoning Power Co.,Ltd. Patentee after: State Grid Corporation of China Address before: 110003 Liaoning Province glorious Street Heping District of Shenyang City No. 21 Patentee before: NEG Shenyang HV Bureau |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |
|
| CX01 | Expiry of patent term |