CN105119378B - Low-voltage distributing line on-line monitoring system - Google Patents
Low-voltage distributing line on-line monitoring system Download PDFInfo
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- CN105119378B CN105119378B CN201510570948.5A CN201510570948A CN105119378B CN 105119378 B CN105119378 B CN 105119378B CN 201510570948 A CN201510570948 A CN 201510570948A CN 105119378 B CN105119378 B CN 105119378B
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- 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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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of low-voltage distributing line on-line monitoring system, including low pressure blackouts monitoring terminal, communications adapter and the public transformer terminals of intelligence.Low pressure blackouts monitoring terminal is to carry out data interaction with the communications adapter being mounted in platform area by micropower wireless mode, mode uploads communications adapter to the public transformer terminals progress low pressure power failure data of intelligence by wireless communication again, and intelligence public affairs transformer terminals are transmitted to distal end after the low pressure power failure data are sorted and handled and monitor main station system.Low pressure blackouts monitoring terminal includes microprocessor, power supply and wireless communication end, it wirelessly communicates end and is equipped with the communication encryption chip for being adapted to the communications adapter cryptographic protocol, power supply includes power cut detection circuit and charging control circuit, under using power cut detection circuit real-time detection to distribution line power failure, operating voltage is provided to microprocessor by the charging control circuit, and collects electric energy to power supply accumulator in the case where power failure is not detected using power cut detection circuit.
Description
Technical field
The present invention relates to the improvement to power grid low-voltage distributing line framework.
Background technique
In low-voltage distributing line on-line monitoring system, mainly match using low pressure power failure monitor as low pressure is mounted on
The data acquisition equipment of power grid end, the equipment have obtained applied generalization in a part of area.Traditional power failure monitoring is set
The standby overwhelming majority only has electrification display and on the spot look facility, information can not be carried out teletransmission, it is even more impossible to the data to acquisition
Carry out comprehensive analysis.For power distribution station decentralized device, the low pressure blackouts monitoring device installed at present is unable to satisfy the mark
Alignment request access electric power Intranet and directly in public network it is assumed that causing main website data that can not share and merge.The present invention solves low
The problem of pressing blackouts monitoring terminal security access electric power Intranet, while also proposed a kind of communication information encryption mechanism.
With the progress of computer communication technology, the raising of electric network informationization level, low-voltage network basic data engineering
Also improved day by day, a series of advanced applications around user's end data are extremely urgent, need power failure monitor being included in information
Change the scope of system monitoring management.In order to it is more accurate, in time judge that user terminal charges situation, quick fault point and shadow
Range is rung, for accident maintenance and takes the initiative in offering a hand technical support is provided, while voltage, the electricity of overall monitor low-voltage network end
The information such as stream, power quality need to study the equipment.
Because low pressure power failure monitor is mounted on the line end of low-voltage network, far from platform area power distribution room, scene also without
Method carries out effective means of communication, and the power failure supervision equipment installed for the power distribution station of the administration of past Utilities Electric Co. is basic
On belong to and the products such as check, control on the spot.Therefore the present invention researches and develops a kind of power failure monitor with communication module after, by matching
The communications adapter of set can be led to the relevant operational state for the monitor that has a power failure and data by electric power private communication after being managed
It is sent on road to main website.
Summary of the invention
In one aspect of the invention, it is solved by designing a kind of low pressure blackouts monitoring terminal of information encryption function
Drawbacks described above.By the integrated security encryption chip in low pressure blackouts monitoring terminal, mainly solves low pressure power failure supervision equipment
The problem of secure accessing authenticates encrypts the message of information transmission, eliminates because information content leakage or outer net are invaded due to band
The security risk come.Low pressure blackouts monitoring terminal using the present invention with encryption chip, may be implemented the one-to-one access of terminal
Certification and management, avoid illegal terminal access system, it can be ensured that transinformation content is not decrypted, and guarantees information transmission peace
Entirely.
In another aspect of this invention, using the public transformer terminals of intelligence mounted in platform area as the uplink of communications adapter
Communication channel will be sent to management system, research and development using the communication channel of public transformer terminals in the relevant information of low pressure power failure monitor
A kind of low-voltage distributing line on-line monitoring system that can manage power failure monitor concentratedly, can efficiently use low-voltage power distribution station area
Existing equipment is shared and has built completion and stable electric power GPRS private communication channel.A prominent effect side
Face, it is only necessary to install a novel communication adapter additional in the position of the public transformer terminals of intelligence, low pressure blackouts monitoring terminal and logical
It interrogates and uses micro power radio communication between adapter, the data of all blackouts monitoring terminals are all summarized to the communication and are adapted to
Device.Realize the low pressure power failure supervision equipment within the scope of platform area be all included in information system management, improve manual work it is horizontal and
Efficiency, realization equipment running status monitoring, equipment life management, low-voltage network end data intensive management etc..At another
In terms of prominent effect, the efficiency that failure is studied and judged and handled can be effectively provided, and realize active users service.The present invention is to power grid
Active repairing service when stable operation, failure, the allotment of low-voltage network three-phase imbalance, the quality of electrical equipment, longevity
Order, exceed the time limit without leak(age) test etc. can found at the first time, to reduce power grid even running it is economical at
This.
Further perfect with power grid infrastructure construction, the failure and end power quality of low-voltage circuit are increasingly becoming
Grid company raises the management level, is promoted the key link of service level, number of the installation low pressure power failure monitor to low voltage electric network
After being acquired, comprehensive monitoring for distribution low-voltage circuit may be implemented, by data mining, failure can be greatly improved
The effect accuracy and efficiency of judgement shortens power off time, provides power supply reliability；Meanwhile passing through the power grid end letter to acquisition
Breath is analyzed, and can be carried out one-to-one precision to user and be taken the initiative in offering a hand, promote the service level of grid company.
In order to realize said effect, the technical solution of low-voltage distributing line on-line monitoring system of the present invention are as follows: it is included in
The low pressure blackouts monitoring terminal being arranged in low voltage power distribution network, communications adapter and the public transformer terminals of intelligence, the low pressure, which has a power failure, supervises
Surveying terminal is to carry out data interaction with the communications adapter being mounted in platform area by micropower wireless mode, the communication adaptation
Mode uploads device to the public transformer terminals progress low pressure power failure data of intelligence by wireless communication again, and the public transformer terminals of intelligence will be described
Low pressure power failure data are sorted and are transmitted to after being handled distal end monitoring main station system.
In one embodiment, the low pressure blackouts monitoring terminal includes microprocessor (MCU), power supply and wireless communication
End, the MCU are electrically connected power supply and wireless communication end, and the wireless communication end, which is equipped with, is adapted to the communications adapter encryption
The communication encryption chip of agreement, the power supply include the power cut detection circuit and charging control circuit for being separately connected the MCU, quilt
Be configured to using under power cut detection circuit real-time detection to distribution line power failure, by the charging control circuit to
MCU provides operating voltage, and in the case where power failure is not detected using power cut detection circuit using charging control circuit to described
Accumulator in power supply collects electric energy.
In another embodiment, in the low voltage power distribution network, each communications adapter is according to control built in it
Logical connection and the multiple low pressure blackouts monitoring terminals of control, in which: the communications adapter is divided into according to the control logic
Primary communications adapter and secondary communications adapter, the primary communications adapter are configured as controlling several low-voltage power distribution stations
Low pressure blackouts monitoring terminal in area in micropower wireless network links, the secondary communications adapter are configured as controlling these
At least partly primary communications adapter in power distribution station.Low pressure in low-voltage distributing line on-line monitoring system of the present invention has a power failure
After monitoring the public transformer terminals of terminal access intelligence, it is able to carry out platform area low-voltage network branched line partial node and end (for example)
Situations such as charging situation, three (list) phase voltages, three-phase current, power, power factor, three-phase imbalance, operation conditions is long-range
It is monitored on main station system.
By the combination of low pressure blackouts monitoring terminal and the public transformer terminals of intelligence, low pressure power failure monitoring device can be solved and acquired
Data can communicatively be uploaded to the main station system of electric power Intranet, carry out monitoring and data analysis；Guaranteeing information
Under secured premise, by existing communication channel, the information exchange between main website and terminal is realized.Using the public transformer terminals of access intelligence
Low pressure blackouts monitoring terminal, may be implemented low-voltage network end acquisition data informationization and visualization, can will have a power failure eventually
End data accesses the data center of electric power Intranet, provides basis for data mining and advanced application, and do not setting up communication individually
Channel and under the premise of not changing the existing public transformer terminals of intelligence, realizes the information exchange of main website and terminal.
Detailed description of the invention
Fig. 1 is the functional block diagram of low-voltage distributing line on-line monitoring system of the present invention；
Fig. 2 is the local circuit schematic diagram of low pressure blackouts monitoring terminal of the present invention；
Fig. 3 is the arrangement module frame chart that low pressure of the present invention is press-fitted electric line on-line monitoring system.
Specific embodiment
Referring to Fig.1, an improvement embodiment of low-voltage distributing line on-line monitoring system be low voltage power distribution network (such as
GPRS/3G or novel 4G-LTE network) in distribution multiple low pressure blackouts monitoring terminals are set, multiple communications adapters and at least
The public transformer terminals of one intelligence.For example, multiple low pressure blackouts monitoring terminals 1 be for example, by micropower wireless mode be mounted on it is low
A communications adapter 2 being press-fitted in radio area carries out data interaction, (such as the 3G net by wireless communication again of communications adapter 2
Network) mode carries out low pressure power failure data to the public transformer terminals 3 of intelligence and uploads, intelligence public affairs transformer terminals 3 by the low pressure power failure data into
Monitoring main station system 4 in distal end is transmitted to after row sorting and processing.
In a preferred example, the low pressure blackouts monitoring terminal 1 includes microprocessor (MCU) 11, power supply (in figure
It is not painted) and end 12 is wirelessly communicated, the MCU 11 is electrically connected power supply and wireless communication end 12.Wireless communication end 12 is equipped with
It is adapted to the communication encryption chip 121 of the 2 built-in encryption agreement of communications adapter.The power supply includes being separately connected the MCU
Power cut detection circuit 13 and charging control circuit 14, this power supply is configured as arriving using 13 real-time detection of power cut detection circuit
Distribution line PWR is in the state of power failure, by the charging control circuit 14 to MCU offer+5V operating voltage, and in benefit
It is not detected in the state that power line PWR has a power failure using charging control circuit 14 with power cut detection circuit 13 into the power supply
Accumulator 15 collects electric energy.
As an improvement, encryption chip 121 is by central processing unit, chip configuration module, reset controller module, clock mould
Block, memory concentrate module, embedded flash module, WatchDog Timer module, programmable Interrupt timing module, it is static with
Machine memory, encryption processor module, dma processor, Universal Serial Interface, Serial Peripheral Interface (SPI) module, true random number occur
The integrated composition of the modules such as device.
In a preferred example, the present invention monitors main station system 4 by the way that low pressure has a power failure at low-voltage power distribution station area scene
Monitoring terminal 1 is communicated after encrypting with communications adapter 2, and communications adapter 2 gets the filled low pressure blackouts monitoring in this area
Filed preservation after the data of terminal 1 and list summarizes.Preferably, being to adopt between communications adapter 2 and the public transformer terminals 3 of intelligence
With cascaded communication mode.Intelligence public affairs transformer terminals 3 are capable of the communication protocol of adaptive communications adapter 2, by institute in communication adapter 2
After the acquisition data and operating status of all low pressure blackouts monitoring terminals 1 in the platform area of preservation are uploaded to public transformer terminals 3, using intelligence
The public transformer terminals 3 of energy, by data remote to monitoring system 4, realize remote online monitoring with GPRS communication channel.
Referring to Fig. 2, as another improvement, the power cut detection circuit 13 and charging control circuit 14 are set up separately in an isolation
Transformer TSPrimary, secondary windings TS1And TS2Side.Wherein, the power cut detection circuit 13 is electrically coupled to first switch circuit
16, the first switch circuit 16 is (for example) parallel to isolating transformer TSMain winding；The charging control circuit 14 introduces
One accessory power supply 18 is equipped with second switch circuit 17 between the accessory power supply 18 and charging control circuit 14, described first opens
Powered-down road 16 can implement in such a way that level signal controls come synchronous/asynchronous work in the present invention with second switch circuit 17
In example, select asynchronous working for an exemplary power on-off mode.Such case is mainly it is considered that in low-voltage distribution network route
In, it is then not have to monitor on route at this time to be as conventional low voltage blackouts monitoring device if there is unexpected the case where having a power failure
It is no that there are the voltage/current situations of feed-in being not belonging on power grid transmission line, for example, it is individual simple for network load power supply from
Power generator, such as photovoltaic type grid-connected system mode now, this part electric energy are likely in the case where without permission
Independent feed-in load, and adverse effect, interference measurement precision are caused to electric net platform region distribution.Therefore, under teachings of this disclosure, i.e.,
Make to detect electric network power line power failure/power loss, it is also desirable to select the output of conducting accessory power supply 18 by switch 17.
In one embodiment, in the isolating transformer TSMain winding TS1Side is equipped with controller 19, the control again
Device 19 is controlled by MCU 11 and is set between the first switch circuit 16 and power cut detection circuit 13.Preferably, this controller
19 are configured as receiving the stream piezoelectric signal V of 16 input terminal of first switch circuitACIAnd control is generated according to this stream piezoelectric signal
Electric signal V processedCON1/VCON2Or VCON3To control the on-off of first, second switching circuit 16,17 respectively.
As above-mentioned improvement, the controller 19 is configured as: passing through control electric signal VCON1/VCON2Be connected described
When one switching circuit 16, conducting second switch circuit 17 is so that energy storage electricity of the charging control circuit 14 into above-mentioned power supply
Road E2 collects electric energy；And when disconnecting the first switch circuit 16, the second switch circuit 17 conducting (such as one is kept
Section preset time, until distribution restores electricity), enable the controller 19 to control the charging control circuit 14 and draws
Enter accessory power supply 18, supplies the load of the low-voltage distribution wire road with output voltage VACT。
In the embodiment shown in Figure 2, the accumulator E2 is to select super capacitor.Meanwhile the first switch electricity
Road includes the triode Q1, Q2 being serially connected.The base stage of triode Q1 and Q2 are respectively connected to above controller 19 to receive control
Electric signal V processedCON2And VCON1, triode Q1 emitter-base bandgap grading passes through the collector of storage capacitor E1 connecting triode Q2.Wherein, described
Single-phase TVS pipe D2 is equipped between triode Q1 base stage and emitter-base bandgap grading, by emitting voltage clamper in a maximum value when for Q1 to be connected
Within.Meanwhile switching diode D1 is provided between controller 19 and Q2 base stage, in one embodiment, so that control signal
VCON2And VCON1There are mutual sequencings.
As above-mentioned another improvement, second switch circuit 17 mainly includes switching diode D3, to replace general switch
Or relay device, it is allowed to transformer TSSecondary windings side voltage-sensitive, the positive input of diode D2, which receives, to be come
From the control electric signal V of controller 19CON3。
From the point of view of embodiment illustrated in fig. 2, power cut detection circuit 13 and charging control circuit 14 are needed using power supply chip VCC
Power supply.When low-voltage distributing line PWR is normally powered on, switching transistor Q1, Q2 and diode D3 are set as by controller 19
On state, then transformer T at this timeSArmature winding TS1With secondary windings TS2The charging capacitor E1 and E2 of side are filled by transformer
Electricity, controller 19 continue to monitor the input voltage V from distribution power line PWRACI, wherein in armature winding side and secondary windings
Parallel filtering capacitor C0 and C1 is distinguished in side, so that each circuit 13,14 or 19 receives burning voltage signal source.
When controller 19 detects that low-voltage distribution network route has a power failure, then control signal V is sentCON1Make to switching tube Q2
Cut-off, and switch Q1 is connected, then armature winding TS1It disconnects, at this time storage capacitor E1, E2 and secondary windings TS2Will it is synchronous to
Armature winding TS1Electric current is provided, when being supplied to armature winding TS1When the collector of current fed triode Q2 is enough to be allowed to be connected,
Controller 19 sends control signal V at this timeCON2It is allowed to end to switching tube Q1, and simultaneously, as secondary windings TS2On voltage not
When being enough that switching diode D3 is connected, D3 be will be switched off, and triode Q1 will be imparted to 19 1 feedback signals of controller at this time, such as
Equally with VACIMode allow controller 19 receive, then controller 19 will control signal V again at this timeCONS3Second switch is connected
Accessory power supply 18 is accessed charging control circuit 14 by D3, then control circuit 14 is by accessory power supply voltage VACTIt is negative to be introduced directly into rear class
It carries and separates supercapacitor E2 and secondary windings TS2Side.
In a preferred example, the control signal of controller 19 can be the height 0/1 exported with analog signal form
Level signal, such as PWM waveform periodic signal.
In another preferred example, accessory power supply 18 can be photovoltaic grid-connected power generation device, such as in the form of solar energy
The electrical energy devices of energy storage, output end are incorporated to charging control circuit, and under the normal power-up state of above-mentioned distribution line, auxiliary electricity
Source 18 can equally collect the electric energy from power line PWR.
It according to the teaching of previous embodiment, is detected after distribution line PWR power on signal again in controller 19, weight
The step of multiple conducting switch 16, is again to convert second switch D3 to conducting transformer TSSecondary windings side, or simultaneously supplemented by
Power supply 18 is helped to store electric energy.
In the above-described embodiments, it is noted that switching tube Q1 disconnect the of short duration time in, capacitor E1 release charge completion
Afterwards, triode Q1 ends, then at this time due to switching tube Q2 both end voltage variation delta VQ2=NVTS2(1+E2/E1), is less than
The V of distribution line is sensed under power-up stateACI, therefore different signal source can be identified as by controller 19.Wherein, N is transformer
TSTurn ratio, VTS2For secondary windings TS2The electric energy voltage that side generates.In order to avoid the electric current amount of releasing is rapid after triode Q1 cut-off
Subtract, the voltage potential promoted as far as possible is clamped to using TVS pipe D2.
Referring to Fig. 3, in another embodiment of the low voltage power distribution network on-line monitoring system, each communication adaptation
Device 2 can connect and control multiple low pressure blackouts monitoring terminals 1 according to its built-in control logic.The communications adapter is according to described
Control logic be divided into primary communications adapter 21 and secondary communications adapter 22, the primary communications adapter 21 is configured as
Control the low pressure blackouts monitoring terminal 1 in several low-voltage power distribution station areas in micropower wireless network links, the secondary communication
Adapter 22 is configured as controlling at least partly primary communications adapter 21 in these power distribution stations.
Preferably, logic unit is equipped in the communications adapter 2, it is whole for connecting and controlling the low pressure blackouts monitoring
Such as MCU unit in end 1, so that drawing under 1 real-time detection to distribution line power failure of low pressure blackouts monitoring terminal
Enter the load that accessory power supply 18 supplies the low-voltage distribution wire road.
As an improvement, the accessory power supply 18 passes through the (for example) charging control circuit 14 in low pressure blackouts monitoring terminal 1
Low-voltage load power supply into power distribution station 103 locating for a primary communications adapter 21.
Preferably referring to embodiment illustrated in fig. 3, the secondary communications adapter 22 is communicatively coupled to low by GPRS
The public transformer terminals 3 of intelligence in electric network are press-fitted, set each low-voltage power distribution station area regional scope according to the control logic, such as
Power distribution station region (being indicated with dotted line frame) 101,102 or 103 shown in Fig. 3, wherein the low pressure within the scope of each area
Failure (such as power failure) on-line monitoring configuration is different.Wherein, at least one is equipped in illustrating each low-voltage power distribution station area
Primary communications adapter 21 is wherein connected between the range of each region by secondary communications adapter 22, logical in twice grades
Control switch is set between news adapter 22.
In a preferred example, the control switch 23 is (for example) low for receiving in primary communications adapter 21
The electrical connection between two low-voltage power distribution station regions is disconnected after fault-signal under press-fitting electric line power failure, such as in Fig. 3
Shown in being electrically connected between platform region 101 and 103 be to be realized by switch, relay or protector form.At one
In embodiment, the control switch 23 can include: according to the fault-signal under low-voltage distributing line power failure by pre-set low pressure
The control switch 231 that power distribution station region 101 and low-voltage power distribution station region 103 are electrically isolated from one another；And matched according to low pressure
Fault-signal under electric line power failure is by a region 104 bigger compared with this 101 range of pre-set low pressure power distribution station region
The control switch 232 being electrically isolated from one another between other low-voltage power distribution station regions 102.
In one embodiment, the long-range control switching that control switch can be that on-off between platform area 101 and 103 uses is opened
231 are closed, at this time in the heavy current breaker of its corresponding higher pressure power line-side, prevents circuit outlet short trouble；And in platform
Switch between area 102 and 104 can be current divider/partial pressure that larger current is split into multichannel low current or earthed circuit
Device.
As an improvement, the secondary communications adapter 22 includes again described pre- for being determined according to different network parameters
If the single machine unit of pre-set low pressure power distribution station regional scope.
As another improvement, the network parameter includes for setting the communication road between twice grade communications adapters 22
The configuration parameter of diameter.Alternatively, the network parameter includes the conducting using above-mentioned control switch determined by single machine unit
State connects the configuration parameters of two secondary communications adapters 22.
In one embodiment, the control logic of above-mentioned setting can specify that are as follows: each secondary communications adapter 22 is logical
It crosses wireless mode or power line carrier current system finds the primary communication adapting appts 21 being attached thereto, such as in different geography
The quantity of the trivial device within the domain of platform may be different.It is adjacent that primary communications adapter 21 then further finds its according to this rule
Power equipment, equipment include the monitoring devices such as low pressure blackouts monitoring terminal 1 or loaded termination in Fig. 3, are each electric power
Equipment 1 generates a corresponding mark, such as registration table.Or it is to be understood that a communications adapter 21 can found
Secondary communications adapter 22 is fed back in its region after sufficient amount of power equipment 1 and forms a register list, thus to this
The mode of equipment and (for example) transmission of electricity connection current direction in register list provides equipment in a low-voltage power distribution station area
Composition and zone boundary.Under normal circumstances, can by detect each region boundary current value whether normally come
It decides whether or not to disconnect the connection of control switch 231 or 232 by secondary communications adapter 22.
In terms of an effect of above embodiments, the preset failure platform that can originally will be had detected that by switch 232
At least partly power equipment or transmission line of electricity outside area 101 in bigger region 104 are isolated, then whole by fault diagnosis step by step
The regional scope that mode reduces this region 104 is determined, to prevent other loads outside region 104 to be interfered or damage；Another
In terms of a protrusion, the register list in adapter device 22 can be periodically updated according to clock setting, in the event of (example
As) fault zone 101, then the registration table that equipment is corresponded in register list is changed, and remove corresponding secondary communications adapter 22,
In this way, on-line monitoring system of the present invention can immediate updating and sorting power line data, and new electric power can be adapted to automatically and set
Standby is incorporated to, to reduce data calculation amount.
In another embodiment, the control logic of above-mentioned setting also can specify that are as follows: one preset station region of setting
101, simultaneous selection one best or most stable of with web area, presets region with this to select the group of other regions
At.For example, the mode of selection be according to the immediate mode in geographical location, or, in the case where there are certain fault conditions, switch
231 fail in the case where disconnecting in time, find adjacent adapter 22 by the secondary communications adapter 22 in region 101 to expand
This big error protection region.Similarly, the register list of corresponding expanding table region is formd in adapter 22.
Claims (1)
1. low-voltage distributing line on-line monitoring system leads to including the low pressure blackouts monitoring terminal being arranged in low voltage power distribution network
Adapter and the public transformer terminals of intelligence are interrogated, the low pressure blackouts monitoring terminal is by micropower wireless mode and to be mounted in platform area
Communications adapter carry out data interaction, the communications adapter again by wireless communication mode carried out to the public transformer terminals of intelligence it is low
Power failure data are pressed to upload, the intelligence public transformer terminals are transmitted to distal end after the low pressure power failure data are sorted and handled and supervise
Main station system is surveyed, wherein the low pressure blackouts monitoring terminal includes microprocessor (MCU), power supply and wirelessly communicates end, it is described
MCU is electrically connected power supply and wireless communication end, and the wireless communication end, which is equipped with, is adapted to the communications adapter cryptographic protocol
Communication encryption chip, the power supply include the power cut detection circuit and charging control circuit for being separately connected the MCU, are configured as
Under using power cut detection circuit real-time detection to distribution line power failure, provided by the charging control circuit to MCU
Operating voltage, and utilize charging control circuit into the power supply in the case where power failure is not detected using power cut detection circuit
Accumulator collects electric energy, and the accumulator selects super capacitor, which is characterized in that the power cut detection circuit and charging control
Circuit processed is to set up primary in an isolating transformer, secondary windings side separately, in which:
The power cut detection circuit is electrically coupled to first switch circuit, one end connection isolation transformation of the first switch circuit
One end of device armature winding；The charging control circuit introduces an accessory power supply, the accessory power supply and charging control circuit it
Between be equipped with second switch circuit, the first switch circuit and second switch circuit asynchronous working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510570948.5A CN105119378B (en) | 2015-09-09 | 2015-09-09 | Low-voltage distributing line on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510570948.5A CN105119378B (en) | 2015-09-09 | 2015-09-09 | Low-voltage distributing line on-line monitoring system |
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| Publication Number | Publication Date |
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| CN105119378A CN105119378A (en) | 2015-12-02 |
| CN105119378B true CN105119378B (en) | 2019-01-11 |
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| CN201510570948.5A Active CN105119378B (en) | 2015-09-09 | 2015-09-09 | Low-voltage distributing line on-line monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526428A (en) * | 2016-12-05 | 2017-03-22 | 西安兴汇电力科技有限公司 | 0.4kV low-voltage distribution line on-line monitoring system |
| CN108448726B (en) * | 2018-04-17 | 2022-04-26 | 宁波三星医疗电气股份有限公司 | Method for reporting power failure event of power system |
| CN111864818B (en) * | 2019-04-28 | 2022-06-14 | Oppo广东移动通信有限公司 | Charging control circuit, charging control method, charging receiving circuit and split type electronic equipment |
| CN110045231A (en) * | 2019-05-09 | 2019-07-23 | 宋国元 | A kind of low pressure has a power failure alarm and fault locator and method |
| CN111277431A (en) * | 2020-01-08 | 2020-06-12 | 国网内蒙古东部电力有限公司检修分公司 | Ultra-high voltage transmission line on-line monitoring server architecture method |
| CN111509801B (en) * | 2020-04-24 | 2022-03-04 | 苏州科瓴精密机械科技有限公司 | Control method and system for automatic equipment, automatic equipment and readable storage medium |
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| CN101202469A (en) * | 2007-09-25 | 2008-06-18 | 宋振群 | Distributing transformator remote monitoring terminal based on embedded system |
| TW201427218A (en) * | 2012-12-21 | 2014-07-01 | Netvox Technology Co Ltd | Power monitoring device |
| CN204030730U (en) * | 2014-09-10 | 2014-12-17 | 国家电网公司 | Be applied to the electric power small wireless private network system of intelligent grid |
| CN104393682A (en) * | 2014-11-28 | 2015-03-04 | 国家电网公司 | Low-voltage power failure monitoring terminal and low-voltage circuit board |
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