CN101026315A - Low voltage distribution microcomputer integrated management device and method - Google Patents
Low voltage distribution microcomputer integrated management device and method Download PDFInfo
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- CN101026315A CN101026315A CNA2006100240532A CN200610024053A CN101026315A CN 101026315 A CN101026315 A CN 101026315A CN A2006100240532 A CNA2006100240532 A CN A2006100240532A CN 200610024053 A CN200610024053 A CN 200610024053A CN 101026315 A CN101026315 A CN 101026315A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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Abstract
The disclosed equipment includes microcomputer, income line cabinet, bus linkage cabinet, and PMC916 or EM electric quantity collection module. The income line cabinet and the bus linkage cabinet are connected to signals including switching value, analog quantity, and controlling quantity from the outgoing line cabinet, PMC916 or EM. Being connected to microcomputer, electric quantity collection module converts analog signal to digital signal. Integrating multiple automatic functions including monitoring, measuring, metering, controlling, network communication and integrated management, the invention is suitable to monitor and management for low voltage part in each transformer substations in town and country, enterprise, intelligent building etc.
Description
Technical field
The present invention relates to a kind of distribution microcomputer centralized management devices and methods therefor, relate in particular to a kind of low-voltage distribution centralized management devices and methods therefor.
Background technology
The present ubiquitous electric weight supervisory control system overwhelming majority is to monitor with the middle pressure and the high pressure electric weight on top at 10kV and 10kV, partly pay close attention to less for 400V, and the user often needs to understand and monitor the ruuning situation of 400V distribution network to a great extent, but the supervision of the distribution of 400V exists some practical problems and difficult point needs to solve, for example:
● factory's station quantity of low-voltage distribution is many, and how the distributed areas difference unifies centralized management;
● the low-tension switch cabinet type is many, and which type of product especially small-scale drawout cubicle adopts to satisfy distributed installation requirement;
● low-voltage power network product is various, though great majority adopt RS485 or RS422 communication interface, communications protocol is not too consistent;
● the low-voltage distribution system loop is many, contains much information, and the real-time of data communication is poorly controlled;
● low-voltage distribution system is as the part of whole power supply-distribution system, and it can only be present in the problem that main website is coordinated as one of them system substation.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of low-voltage distribution microcomputer centralized management device, are intended to solve the above problems;
The present invention also provides a kind of method of low-voltage distribution microcomputer centralized management.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
According to on-the-spot actual conditions and user's requirement, and the Financial cost of consideration engineering, the invention provides typical solution in three.
Comprehensive type device and method:
The inventive system comprises: microcomputer, incoming line cabinet, female connection cabinet, PMC916 or EM electric quantity acquisition module; Signals such as switching value, analog quantity and controlled quentity controlled variable in incoming line cabinet, female connection cabinet and the outlet cabinet are connected with PMC916 electric quantity collector or the EM electric quantity acquisition module in being installed in cabinet, finish by analog signal by electric quantity acquisition module to link to each other to the conversion of digital signal and with microcomputer;
Method of the present invention realizes by following steps:
PMC916 or EM electric quantity acquisition module are installed in all cabinets, the switching value of each loop correspondence, analog quantity and controlled quentity controlled variable all concentrate in a PMC916 or the EM electric quantity acquisition module, again all electric quantity acquisition modules in row's cupboard are networked by the RS485 bus, microcomputer is responsible for gathering all PMC916 and EM, realizes concentrating of data;
The standard type device and method:
The inventive system comprises: microcomputer, incoming line cabinet, female connection cabinet, PMC916 or EM electric quantity acquisition module, the long-range relay output module of RCU, RCM analogue collection module, RSI32 switch acquisition module; Signals such as switching value, analog quantity and controlled quentity controlled variable in incoming line cabinet, the female connection cabinet all insert in the PMC916 electric quantity collector or EM electric quantity acquisition module that is installed in the cabinet, switching value in the outlet cabinet links to each other with RSI32 switch acquisition module in being installed in the microcomputer cabinet, and the analog quantity in the outlet cabinet links to each other with the RCM analogue collection module; Microcomputer and PMC916 and EM, RCM links to each other with RSI32 and realizes the data aggregation process;
Method of the present invention realizes by following steps:
In incoming line cabinet and female connection cabinet, PMC916 or EM electric quantity acquisition module are installed, other switching values that go out line loop insert RSI32 switch acquisition module, analog quantity inserts the RCM analogue collection module, again PMC916 or EM electric quantity acquisition module, RSI32 and RCM are networked by the RS485 bus, microcomputer is responsible for gathering the data of all PMC916, RSI32 and RCM acquisition module, realizes concentrating of data;
The simple type device and method:
The inventive system comprises: microcomputer, incoming line cabinet, female connection cabinet, the long-range relay output module of RCU, RCM analogue collection module, RSI32 switch acquisition module; Signals such as switching value in incoming line cabinet, female connection cabinet and the outlet cabinet and controlled quentity controlled variable all insert in the RSI32 electric quantity acquisition module that is installed in the master control cabinet, all analog quantitys insert the RCM analogue collection module, and microcomputer links to each other with the RCM acquisition module with RSI32 and realizes the data aggregation process;
Method of the present invention realizes by following steps:
RSI32 and RCM electric quantity acquisition module are installed in the master control cabinet, incoming line cabinet, female connection cabinet and switching value and analog quantity that all go out in the line loop are linked into respectively among RSI32 and the RCM, again RSI32 and RCM are networked by the RS485 bus, microcomputer is responsible for gathering the data of all RSI32 and RCM acquisition module, realizes concentrating of data;
Compared with prior art, the invention has the beneficial effects as follows: integrate multiple automation functions such as supervision, measurement, metering, control, network communication and integrated management, be applicable to the monitoring management of transformer stations at different levels low-pressure section, comprise that town and country transformer station, power plant, enterprise become numerous areas such as switchgear house, intelligent building, urban construction, school, harbour, airport, intellectual communityintellectualized village; Having satisfied power industry standard and relevant industries standard, is the low-voltage distribution microcomputer centralized management device of a kind of open, intelligent, networked, blocking, configurationization, is the network bridge that realizes the low-voltage distribution intelligent management.
Description of drawings
Fig. 1 is the module map of first embodiment of the invention;
Fig. 2 is the concrete network diagram of first embodiment;
Fig. 3 is the module map of second embodiment of the invention;
Fig. 4 is second concrete network diagram of embodiment;
Fig. 5 is the module map of third embodiment of the invention;
Fig. 6 is the 3rd the concrete network diagram of embodiment;
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
By Fig. 1, Fig. 2 as seen: the inventive system comprises: microcomputer, incoming line cabinet, female connection cabinet, PMC916 or EM electric quantity acquisition module; Signals such as switching value, analog quantity and controlled quentity controlled variable in incoming line cabinet, female connection cabinet and the outlet cabinet are connected with PMC916 electric quantity collector or the EM electric quantity acquisition module in being installed in cabinet, finish by analog signal by electric quantity acquisition module to link to each other to the conversion of digital signal and with microcomputer;
By Fig. 3, Fig. 4 as seen: the inventive system comprises: microcomputer, incoming line cabinet, female connection cabinet, PMC916 or EM electric quantity acquisition module, the long-range relay output module of RCU, RCM analogue collection module, RSI32 switch acquisition module; Signals such as switching value, analog quantity and controlled quentity controlled variable in incoming line cabinet, the female connection cabinet all insert in the PMC916 electric quantity collector or EM electric quantity acquisition module that is installed in the cabinet, switching value in the outlet cabinet links to each other with RSI32 switch acquisition module in being installed in the microcomputer cabinet, and the analog quantity in the outlet cabinet links to each other with the RCM analogue collection module; Microcomputer and PMC916 and EM, RCM links to each other with RSI32 and realizes the data aggregation process.
By Fig. 5, Fig. 6 as seen: the inventive system comprises: microcomputer, incoming line cabinet, female connection cabinet, the long-range relay output module of RCU, RCM analogue collection module, RSI32 switch acquisition module; Signals such as switching value in incoming line cabinet, female connection cabinet and the outlet cabinet and controlled quentity controlled variable all insert in the RSI32 electric quantity acquisition module that is installed in the master control cabinet, all analog quantitys insert the RCM analogue collection module, and microcomputer links to each other with the RCM acquisition module with RSI32 and realizes the data aggregation process.
EM series intelligent power instrument
(1) function
EM-B (not with liquid crystal display) and EM-M intelligent power instrument are the intelligent devices that is used for middle low-pressure system (6-35KV and 0.4KV), it integrates data acquisition and computing function, has functions such as the measurement of basic single loop ac electric and calculating, 2～15 subharmonic monitorings.EM-B, EM-M provide communication interface to be connected with computer supervisory control system, support RS485 interface MODBUS communications protocol.
(2) characteristics
● have powerful collection and data processing function
Support three-phase three-wire system and three-phase four-wire system optional function, measurement and computing function with the power factor of three-phase voltage, three-phase current, zero-sequence current, power factor, each phase, the percent harmonic distortion of voltage and current (comprising resultant distortion rate THD, odd aberration rate, even aberration rate), 2 ~ 15 order harmonic components occupation rates of voltage, 2 ~ 15 order harmonic components occupation rates of electric current etc. can online modifications or check running parameter.
● safe, good reliability
EM-B, EM-M have adopted multiple interference protection measure in design process, can stable operation in power system environment.The static discharge anti-interference meets 3 grades; The electrical fast transient (eft) vulnerability to jamming meets 3 grades; The impacting with high pressure anti-interference meets 3 grades; The surge anti-interference meets 3 grades; The panel degree of protection meets IP54, and the housing degree of protection meets IP20.
● volume is little, and is easy for installation
EM-B, EM-M overall dimension meet DIN96 * 96 standards, and the housing degree of depth is 60mm, and EM-M adopts self-locking panel type installing mechanism, and EM-B adopts guide tracked installing mechanism, need not screw and fix and can install.Small and exquisite profile and succinct mounting means make the dismounting of EM-B, EM-M very convenient.
● system wiring is convenient, flexible
The system wiring mode has three-phase four-wire system 3CT (3P4W/3PT+3CT), three-phase four-wire system 1CT (3P4W/3PT+1CT), three-phase three-wire system 3CT (3P3W/3PT+3CT), three-phase three-wire system 2CT (3P3W/3PT+2CT), three-phase three-wire system 1CT (3P3W/3PT+1CT).
● intuitive display, easy and simple to handle
EM-M adopts large scale special liquid crystal module, can show multinomial information in real time, cooperates bright backlightly, makes operator's also accurate read data under the situation of light difference.The mode of operation hommization, the operator can grasp at short notice.Read data and parameter are provided with etc. that operation is simple.
PMC916 plus electric power monitoring and control device
(1) outline
PMC916 plus is a intelligent multi-function electric power parameter measure and control device that is widely used in electric power system, PMC916 plus can directly be used as the electric parameter metering instrument, measure electric parameters such as electric current, voltage, power, harmonic wave, can simultaneously 8 road passive switch amounts be monitored; PMC916 plus has the output of No. 4 relays, and the relay of PMC916 plus is except realizing the remote control that electric parameters such as all right related voltage, electric current, frequency, power are realized alarm control.PMC916 plus has user oriented open communication agreement, supports the RS485 communication interface, supports the MODBUS-RTU network communication protocol, can realize information exchange with all kinds of computer supervisory control systems easily.
(2) function
● electrical measurement
Electrical measurement comprises that three-phase voltage is measured, three-phase current is measured, power-factor measurement, and draws expansion electric parameters such as power, electric degree, harmonic wave with the above-mentioned basic calculation that is measured as
● the switching value Stateful Inspection
PMC916 plus can monitor 8 road passive switch amount signals or passive pulsed quantity simultaneously, and PMC916 plus provides common port DICOM simultaneously.Terminal " DIx " is the input of switching value or pulsed quantity, and terminal " DICOM " is the common port of switching value or pulsed quantity.
The signal type that the switching value input channel inserts can be selected by actual demand, can be set to a few roads and be switching value and other a few road is a pulsed quantity.The signal type that PMC916 plus acquiescence input channel inserts is a switching value.This is arranged among the SingnalingFunc (digital quantity input function) of main menu Device Setup (function setting).The state of switching value can show on the panel of PMC916 plus.When the switching value signal condition was " closure ", corresponding signal lamp was bright on the panel; When the switching value signal condition was " disjunction ", corresponding signal lamp went out on the panel.When a certain road or several roads input function were set to the pulsed quantity function, PMC916 plus carried out step-by-step counting to this road or a few paths, and when signal changed to the rising edge of pulse, corresponding step-by-step counting added 1.Corresponding signal lamp is invalid on this passage corresponding panel.When the switching value monitoring device is monitored numerous switching values, must be able to distinguish the time sequencing of switching value action event, i.e. the SOE logout.The SOE resolution of PMC916 plus is 2 milliseconds, as long as any two time intervals that are monitored switching value generation displacement are not less than 2 milliseconds, PMC916 plus all can be distinguished and record reliably
● remote control
The output of No. 4 relays is arranged in PMC916 plus, be normal opened contact.The corresponding signal lamp output of No. 4 relays can be set at manual operation, straighforward operation and electric parameter Threshold Crossing Alert operation.
Manual operation: on the panel of PMC916 plus, utilize button to operate.
Straighforward operation: pass through the communication bus implementation and operation on the supervisory control system backstage.
RTU series acquisition module
(1) RCM32 telemetry-acquisition unit
● general introduction
The RCM32 remote unit is an analogue collection module, by connecting elements such as instrument transformer, transmitter, be used to gather analog signals such as electric current, voltage, power, temperature, humidity, pressure, flow and be converted to digital signal, connect the exchanges data that realizes with supervisory control system through communication
● major function
The RCM32 unit can be gathered 32 0-20mA simultaneously and exchange or the 4-20mA dc current signal.Remote unit is connected by the RS485 bus with host computer, adopts question and answer mode (Polling) to carry out exchanges data, reflects the remote measurement value of measurand in real time.
● the key technical indexes
Analog quantity input: 32 tunnel
Input mode: 0-20mA/AC, 4-20mA/DC, 0-2.5V/DC
Working power: 24VDC ± 10%, ripple coefficient is less than 5%
Power consumption: less than 2.5W
Bus mode: RS485
Bus capacity :≤32
Remote measurement refresh rate:＜1s
Remote measurement precision: 0.5%
The communication response time: 20ms
Communication speed: by dial-up four kinds of selections are arranged, be respectively 9600/4800/1200/600bit/s
Address: the station number scope is from 1-32, and 0x00 is a broadcast address
Degree of protection: IP40, terminal part IP20
Operational environment :-5 ℃ to 55 ℃
Storing temperature :-25 ℃ to 85 ℃
● conformance with standard
IEC61000-4-2 (EN61000-4-2) static discharge immunity test grade 3
IEC61000-4-3 (EN61000-4-3) radio frequency electromagnetic field radiation immunity test grade 3
IEC61000-4-4 (EN61000-4-4) Electric Fast Transient Burst Anti-interference class 4
IEC61000-4-5 (EN61000-4-5) surge impact immunity test grade 3
IEC61000-4-6 (EN61000-4-6) conduction interference immunity test grade 2
EN55011 radio-frequency radiation limit of disturbance category-A
(2) RSI32 remote signalling collecting unit
● general introduction
RSI32 remote signalling unit is the switch acquisition module, is used to gather the switching value signal and is converted to digital signal, connects the exchanges data that realizes with supervisory control system through communication.
● characteristics
RSI32 remote signalling unit can be gathered 32 road passive switch amount signals simultaneously.The unit is connected by the RS485 bus with host computer, adopts question and answer mode (Polling) to carry out exchanges data, reflects the switching value state in real time, and can store 32 sequence of events recording (SOE information), the time of accurately reflecting the switching value state variation.
Adopt photoelectricity to isolate input, the reliably protecting internal circuit can not be subjected to extraneous forceful electric power and press input and cause damage.
The switching value temporal resolution, reflection RSI32 is to a plurality of contacts separating capacity of displacement in succession, and any two contact displacements are during interval greater than 1ms, and module can be distinguished, and embodies in SOE information.
Adopt two-wire system half-duplex RS 485 modes, bus can be hung 32 RSI32 at most, and the connection between the unit need be adopted Shielded Twisted Pair.Communication interface adopts the anti-thunderbolt of high reliability interface chip, can suppress the instantaneous overvoltage that thunder and lightning and other a variety of causes produce in the line, avoids interface circuit to damage, and makes communication more reliable.Transfer of data adopts the CRC cyclic redundancy check (CRC), has greatly strengthened the reliability of data, has improved antijamming capability.
● the key technical indexes
Input circuit: 32 tunnel
Input mode: passive dry contact
Working power: 24VDC ± 10%, ripple coefficient is less than 5%
Power consumption :≤2.5W
Bus mode: two-wire system RS485
Bus capacity :≤32
Switching value temporal resolution:＜2ms
Remote signalling Scanning speed: 1ms
The time of trembling is gone in remote signalling: 60ms
The communication response time: 20ms
Sequence of events recording (SOE) capacity: 32
Communication speed: by dial-up four kinds of selections are arranged, be respectively 9600/4800/1200/600bit/s
Module's address: station number scope from 1 to 32,0x00 is a broadcast address
Degree of protection: IP40, terminal part IP20
Operational environment :-5 ℃ to 55 ℃
Storing temperature :-25 ℃ to 85 ℃
(3) RCU16 remote control unit module
● general introduction
The RCU16 remote control unit is long-range relay output module, is used to accept the straighforward operation of computer instruction executive system or control automatically.
● major function
There is the output of No. 16 relays the RCU16 unit, and relay output can be divided into pulse and two kinds of forms of self-sustaining.Under the impulse type mode, relay contact closure discharges after two seconds automatically, and under the self-sustaining mode, relay output remains closure or off-state for a long time.The unit is connected with host computer by the RS485 bus, realizes the control corresponding function.
● the key technical indexes
Output loop: No. 16 relays output
Output capacity: 5A/250V (AC) or 5A/30V (DC)
Working power: 24VDC ± 10%, ripple coefficient is less than 5%
Power consumption: less than 2.5W
Bus mode: RS485
Bus capacity :≤32
Remote control accuracy rate: 100%
The communication response time: 20ms
Communication speed: by dial-up four kinds of selections are arranged, be respectively 9600/4800/1200/600bit/s
Module's address: station number scope from 1 to 32,0x00 is a broadcast address
Degree of protection: IP40, terminal part IP20
Operational environment :-5 ℃ to 55 ℃;
Storing temperature :-25 ℃ to 85 ℃.
Performance index of the present invention
1. device interface capacity
Standard configuration is 16 RS485 bus interface, can insert 256 electric quantity acquisition modules.
2. the capacity of data acquisition, processing and control
The type of data acquisition and processing (DAP) comprises remote measurement amount, remote signalling amount, pulsed quantity, digital quantity and other non electrical quantities, default capacity following (every bus), the extendible or reduction of user oneself.
Switching value input (DI) 512
Analog quantity input (AI) 256
Pulsed quantity input (PI) 256
Digital quantity control output (DO) 256
3. data transfer time
Important remote measurement amount update cycle≤5S
General remote measurement amount update cycle≤10S
Accident remote signalling displacement passing time≤3S
Remote control remote regulating order passing time≤5S
Total system real time data scan period≤10S
4. picture response time
General picture calls response time≤2S
Complicated picture calls response time≤3S
Picture real time data refresh cycle≤4S
From receiving that accident information is to picture release≤2S
5. operating index
Accuracy 〉=99.5% is handled in remote signalling
Remote control accuracy 〉=99.9%
Imitation screen Refresh Data cycle≤10S
The cpu load rate is at normal operation time≤30%
System's operational reliability 〉=99.98%
6. system running environment requirement
Power supply: exchange single-phase 220 ± 10%V, 50 ± 0.3Hz
Temperature :-5 ~ 40 ℃
Relative humidity :≤85%
Have dustproof, anti-static precautions, should provide generally that capacity is enough, the retention time is at the uninterrupted power supply (ups) Unity more than 3 hours.
Software function of the present invention
1. real-time data acquisition
For low-voltage distribution microcomputer centralized management device, its top priority is will operate in the power distribution room in the data collection of on-the-spot electric weight preservation that terminal is gathered by communication system, makes the staff at centralized monitor center obtain to reflect the accurate information of operation condition in site.The support that this part provides comprises:
● adopt the terminal server of high speed, big capacity, rack, guarantee that field data is received and processing by microcomputer centralized management device as quickly as possible, guarantees real-time.
● man-machine interface is provided, according to the actual conditions at scene, the running parameter of online modification data acquisition, as the communication protocol that uses, traffic rate or the like is with failing with usefulness.
● according to the equipment situation at scene, finish the preliminary treatment of finishing on the basis of stipulations conversions data, comprising coefficient processing to measuring amount, reasonableness check etc., to the reversal of position signalling, correlation inspection etc.
● on the reception processing terminal, send under the prerequisite of data,, finish the assembling and the transmission of down order, realize controlled function, also can finish the forwarding of system data in addition according to the requirement of system's operation.
● the function for monitoring to communication data is provided, both can have checked the data of all receptions and transmission, also can analyze and add up, and then the analysis to communication quality is provided these data.
● for ease of carrying out the analysis to system operation situation, the function that provides digital simulation to send both can send analogue data by a certain stipulations circulation, also can send specific data at the requirement of a certain type.
● finish the unification of system clock, both can be according to the internal clocking of computer system, also standard time clock that can be external according to data (as gps clock etc.) is united the clock signal of computer system and on-site terminal.
2. real time database management
Real time database management is the basis that systemic-function is accomplished, and has wherein preserved the real time data that collection in worksite comes, and to the processing requirements of data and the supplementary of deal with data, the support that this part provides comprises:
● use relational model of database, this directly perceived, succinct model is convenient to the definition and the maintenance of database.
● the database definition function is provided, can revises existing database structure or define new database according to the needs of work on the spot.
● the database data editting function is provided, adopts interactive man-machine interface, system user's logging data fast, and in use can revise data easily, comprise insertion, delete, duplicate, append or the like.
● the database data recited function is provided, in unified keyword data referencing being shown to other storehouse, safeguards the relation between the table of storehouse, also can be in the occasion of various forms representation of data such as picture form with data referencing.
● the database data access function is provided, both can have adopted application programming to connect the direct accessing database of mode of (API), also can adopt the mode accessing database of SQL normal data query language.
● the database controlled function is provided, both can limits modification, can finish special management by using the storehouse control table again the storehouse by the user password mode to the storehouse content.
● support data to distribute, thereby support the realization of distributed system architecture, provide data consistency to guarantee mechanism.
● as a part, also provide definition in the rdal-time DBMS, replaced numeral expression mode uninteresting, that easily obscure, made the maintenance process of storehouse table convenient with literal intuitively to the data form of expression to user close friend.
● support multimedia application,, also can preserve multimedia messagess such as image, voice except that preserving the text message.
3. historical data library management
So-called historical data is exactly that Openview low-voltage distribution microcomputer centralized management device is preserved the record about the monitored object running of accumulation in running, and they are capsule information of the required preservation of low-voltage distribution user.The support that provides for these data has:
● define the scope and the content of preserving data by the user, mainly contain following several form, the firstth, with curve mode the variation tendency of some amounts is noted with the sampled point form of comparatively dense, the secondth, under the value sample record of mode with data representative point in a day, a month with form, the 3rd is that the various change records in system's running are got off.
● the representational role of history curve.In picture, define history curve, check in the past plots changes by the time of revising curvilinear correlation; Can be by the relevant form of definition, by revising the history report data time, with the situation in formal check past of form; Can use the instrument of retrieving information, the associated change of random time, any type in the check system history run.
● the dump of historical data.Development of computer makes us no longer be confined to the capacity of external memory, thereby the time span that historical data is preserved is also without any restriction, under the situation of computer external memory off-capacity, the historical data of record can be dumped on the external memory of other form such as CD, be convenient to long preservation.
4. picture making and demonstration
Main conclusions of human engineering are exactly, with the graphics mode representation of data, can use less screen space reflection more information, Openview low-voltage distribution microcomputer centralized management device utilizes the back yard industry computer screen to provide abundant image content for the user.The support that this part provides comprises:
● the information system graphic model on layering, branch plane is provided.The ability of more strong graphic making and representation of data is provided for the user.
● pantography function and automatic information hidden function with matching are provided, and just the zoom function of often saying can both can be held the overall situation for the user of the system variation of data demand according to the observation, can obtain detailed data information when needed again.
● support graphic making and graphical display greater than the screen scope.The user can show off in the larger context fully for the requirement of data performance, under the support of navigation picture and any direction mobile graphics viewing area, can obtain to roam the facility of being brought easily.
● the graphic making instrument provides the graphic making means of enriching to satisfy the changeable requirement of electric power system, but do not limit the style of the figure that made comes out, allow the user can be according to the custom of oneself and the needs of real work, give full play to one's imagination and creativity, obtain satisfied display effect.
● the ability of making the various ways figure is provided, comprises various schematic diagrames, curve chart, bar, pointer gauge, pie chart, dynamic line, animation etc., or the like; Multiple symbol definition mode and symbolic reference means are provided, both can have accelerated the process of graphic making, enriched the form of data performances again.
● the concatenation ability with data base management system is provided.After the position of the data that showed by simple data referencing interface definition, the situation of change of reflection data on picture in real time.
The mode that provides multiple figure to call, both can be to the graphic designs of made suitable index, come retrieve data gradually by index, can define the direct key mode that picture is called again, accelerate the speed of calling.
5. report making and demonstration
Form is the record form that run unit uses maximum historical datas always, also is the form of expression the most intuitively, is to check meter or all be like this by the automatic printing reports of supervisory control system by hand.This part provides following support:
● utilize Office Excel software, provide abundant means easily to make the form of the various patterns of user's needs, also comprised a lot of editting functions here, especially the block editing function.
● the made form can be divided into daily paper, monthly magazine, annual report according to the sampling period of the data that wherein comprise, and also has weekly and ten days report.
● the data representation form in the horn of plenty form can embed bitmap and curve in the form.
● can adjust printing effect by the Print Preview interface according to printing the situation that requires with relevant printing device.
● the timed print of form is provided and calls the printing dual mode at random.
6. data processing
The result of data acquisition just reflects the master data of operation condition in site, is commonly referred to as living data, it both lacked and other data between get in touch, also lack and other sampled value of same data between getting in touch.Further data processing is finished by data processing, and it provides following support:
● receive and write down field data, as the basis of further work by the data acquisition system acquisition.
● the differentiation of data mode, as measured value whether effectively, whether surpass zone of reasonableness, whether state changes or the like, and discrimination result is preserved.
● the data statistics function, such as for measured value, we not only are concerned about the variation of its value, and are concerned about its characteristic value in following period of time, comprise maximum, minimum value, mean value, also occur the time of maximum, minimum value in addition.
● the data computation function.For some the calculating of clear and definite computational methods is arranged, system regularly finishes these calculating to the data point that calculation requirement is arranged in the system, as qualification rate, power factor or the like, and preserves result of calculation.
● user-defined calculating, the ability that defines computing formula is provided, some special calculation requirements of the user of system are described with the form of formula, in running, finish these calculating by system then, and preserve result of calculation.
● data sampling.For data point, after clear and definite sampling period and sample range, finish sampling work as requested by system, and be saved in the database with different sampling cycle requests.
7. alarm function
In system's running, the user is concerned about the real time data of reflection operation condition in site, more be concerned about the variation of these data, because these variations are more valuable for monitoring, management devices need be found out these variations, and variation informed administrative staff, the differentiation and the issue of Here it is our warning information often mentioned.This part provides following support:
● selection need be carried out the scope of these differentiations, need carry out the limit value inspection such as having only minority in the measured value, the user can finish these easily and select in database, also can set the parameter of differentiation in addition, such as the upper limit value and lower limit value of using in the limit value inspection.
● select the content of alarm prompt.For quantity of state, because the physical device difference of its representative just should have different promptings to the variation of such quantity of state.As pointing out " separating brake ", " combined floodgate " to switch, to fan prompting " startup ", " stopping " or the like, corresponding voice are also different.
● the classification of the information that needs alarm prompt is set.The different users of system, the variation in the care system is also different, and what be concerned about such as the monitor staff is accident, displacement, the content relevant with the scene such as out-of-limit, and the attendant of system then is concerned about operation information, terminal operating information etc.
● select suitable alarm prompt mode.Information to a type in the system often has multiple prompting mode, and such as providing the alarm prompt bar, ejecting and alarm dialog box, voice suggestion, information printing or the like, the user can accept or reject as the case may be.
● set the different priorities of alarm prompt.In system's running, many variations take place sometimes simultaneously needs prompting, can point out important change information quickly by setting priority.
● the classification of warning information and preservation.Alarm prompt also is the operating important information of system, the carrying out that can help further work that preserves.Both can print to these information on the paper, also can be kept in the computer external memory.For the information that is kept in the external memory, can use the information retrieval means to check alternately at any time.
Indulge the above, characteristics of the present invention are:
1. adopt advanced power automation and distributed intelligence technology, fully satisfy the power industry need in future Ask, have prevention and avoid accident to take place; Perfect, strengthen energy measurement and examination, minimizing equipment stop The plurality of advantages such as electricity and repair time; Possess and LAN (TCP/IP) or higher level's computer/accent Degree end network savvy realizes data resource sharing.
2. system communication network using advanced person's layering, distributed frame, station level adopts 10M/100M worker Industrial Ethernet, wall communication network adopt Eco-power RS485 bus, and be economical, efficient, spirit Live, adapt to the transformation and distribution system of various scales.
3. not only support the Multifunctional power energy acquisition module of the ABB series that this device is recommended, and support domestic The equipment such as the microcomputer protecting device of outer multiple brand, intelligent breaker, network instrument, PLC, RTU Networking; And the communications protocol by standard realizes data retransmission, and round Realization transformer station is original to be established Standby networking; Satisfy the transformer and distribution power station new construction and transform different requirements with old station.
4. the Openview low-voltage distribution integrated management software of performance brilliance, it adopts based among the Windows Literary composition operating system, Open architecture, the two net configurations of support two-shipper, perfect realization high and low pressure becomes joins The integrated high speed Integrated Realtime Monitoring and Controlling of electric system; Satisfy the real-time of big data quantity, high rate of change The property collection requirement, the intelligent configuration template of multiple transformation and distribution system and intelligent administration module are provided.
5. having real-time data acquisition, primary connection figure (high and low pressure system) demonstration and operation, parameter establishes Put, straighforward operation, affair alarm/record, curve/excellent figure, report printing, electric energy Classification Management, Intelligent acousto-optic warning, power quality analysis, information management and with the function such as other robot control system(RCS) networkings;
6. the characteristics of, cabinet type complexity many according to industry standard and distribution system loop provide different electric pressures Reach the primary system wiring diagram interface that the CAD drawing of engineering design conforms to, electric energy classification pipe is provided simultaneously The functional modules such as reason, fault message inquiry, data sheet analysis.
Support various standard agreements, comprising: standard CDT promulgated by the ministries or commissions of the Central Government, DNP3.0, IEC870-5-101/102/103/104, DL645, Modbus, SPABUS etc.), mimic panel communication screen And protocol extension.
Claims (6)
1. a low-voltage distribution microcomputer centralized management device comprises: microcomputer, incoming line cabinet, female connection cabinet, PMC916 or EM electric quantity acquisition module; It is characterized in that: the signals such as switching value, analog quantity and controlled quentity controlled variable in incoming line cabinet, female connection cabinet and the outlet cabinet are connected with PMC916 electric quantity collector or the EM electric quantity acquisition module in being installed in cabinet, finish by analog signal by electric quantity acquisition module to link to each other to the conversion of digital signal and with microcomputer.
2. method as claimed in claim 1, realize by following steps:
PMC916 or EM electric quantity acquisition module are installed in all cabinets, the switching value of each loop correspondence, analog quantity and controlled quentity controlled variable all concentrate in a PMC916 or the EM electric quantity acquisition module, again all electric quantity acquisition modules in row's cupboard are networked by the RS485 bus, microcomputer is responsible for gathering all PMC916 and EM, realizes concentrating of data.
3. a low-voltage distribution microcomputer centralized management device comprises: microcomputer, incoming line cabinet, female connection cabinet, PMC916 or EM electric quantity acquisition module, the long-range relay output module of RCU, RCM analogue collection module, RSI32 switch acquisition module; It is characterized in that: the signals such as switching value, analog quantity and controlled quentity controlled variable in incoming line cabinet, the female connection cabinet all insert in the PMC916 electric quantity collector or EM electric quantity acquisition module that is installed in the cabinet, switching value in the outlet cabinet links to each other with RSI32 switch acquisition module in being installed in the microcomputer cabinet, and the analog quantity in the outlet cabinet links to each other with the RCM analogue collection module; Microcomputer and PMC916 and EM, RCM links to each other with RSI32 and realizes the data aggregation process.
4. method as claimed in claim 3, realize by following steps:
In incoming line cabinet and female connection cabinet, PMC916 or EM electric quantity acquisition module are installed, other switching values that go out line loop insert RSI32 switch acquisition module, analog quantity inserts the RCM analogue collection module, again PMC916 or EM electric quantity acquisition module, RSI32 and RCM are networked by the RS485 bus, microcomputer is responsible for gathering the data of all PMC916, RSI32 and RCM acquisition module, realizes concentrating of data.
5. a low-voltage distribution microcomputer centralized management device comprises: microcomputer, incoming line cabinet, female connection cabinet, the long-range relay output module of RCU, RCM analogue collection module, RSI32 switch acquisition module; It is characterized in that: signals such as switching value in incoming line cabinet, female connection cabinet and the outlet cabinet and controlled quentity controlled variable all insert in the RSI32 electric quantity acquisition module that is installed in the master control cabinet, all analog quantitys insert the RCM analogue collection module, and microcomputer links to each other with the RCM acquisition module with RSI32 and realizes the data aggregation process.
6. method as claimed in claim 5, realize by following steps:
RSI32 and RCM electric quantity acquisition module are installed in the master control cabinet, incoming line cabinet, female connection cabinet and switching value and analog quantity that all go out in the line loop are linked into respectively among RSI32 and the RCM, again RSI32 and RCM are networked by the RS485 bus, microcomputer is responsible for gathering the data of all RSI32 and RCM acquisition module, realizes concentrating of data.
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