CN107479524A - A kind of Intelligent wind power field SCADA system of ciphering type Profinet communication modes - Google Patents
A kind of Intelligent wind power field SCADA system of ciphering type Profinet communication modes Download PDFInfo
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
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Abstract
The invention discloses a kind of Intelligent wind power field SCADA system of ciphering type Profinet communication modes, including blower fan monitoring system, wind power plant central monitoring system and remote internet monitoring system on the spot.The system employs the framework development mode that B/S and C/S are combined, and is different from traditional single B/S or C/S architecture modes, the problem of effectively improving system architecture bad adaptability.The Profinet EPAs communication uses isochronous mechanism, in multicycle transmitting procedure, flexibly uses RT and IRT communication characteristics, makes full use of Internet resources, optimize network structure, further increases the real-time characteristic of traditional ethernet.The bottom PLC transmitters send in data procedures to upper PC receiver and use DES algorithm for encryption, realize safe transmission of the system to real time data.Using the matching way in database server confirm slave computer transmission data reception whether, enhance the reliability of system.
Description
Technical field
The present invention relates to a kind of Intelligent wind power field SCADA real-time control systems, in particular it relates to a kind of ciphering type
The Intelligent wind power field SCADA system of Profinet communication modes.
Background technology
Because the working environment of wind-driven generator is severe, run all the year round in the case where no administrative staff participate in, to it
In real time, reliable monitoring is more important.Especially for larger wind power plants, it usually needs typhoon power hairs tens of or even up to a hundred
Motor carries out clustered control, and traditional wind power plant SCADA control systems can not meet industrial monitoring demand, and it exists as follows
The problem of described.
1) security of system, poor reliability
In industrial processes, the network security of industrial control system is the weight that developer must take into consideration in the design process
Factor is wanted, industrial network is easily by security threats such as hacker's illegal invasion, virus infection and illegal operations.Data Transport Protocol may
Cracked by invader so that server storage leaking data, or even destroyed, the serious threat security of power system and can
By property, the production development and daily life of people are directly influenced, causes the heavy losses of property.And the wind-power electricity generation of wind power plant
Machine quantity is more, and required PLC is more, if unordered distribution, not only influences the dilatation of later stage wind power plant power equipment,
And easily caused confusion in gathered data upload procedure, cause data storage to malfunction, influence the real-time monitoring to live blower fan.
2) system real time is poor
One side traditional ethernet relies on CSMA/CD mechanism, is solved by resending data in data transmission procedure
The conflict of generation.Obviously, the mechanism is to pay the time as cost.Particularly once breaking down, even the time of several seconds,
The stopping entirely producing is this may result in, or even produces equipment, personal safety accident.Another aspect traditional ethernet uses
CSMA/CD modes, when network load is excessive, the uncertainty of its transmitting procedure is difficult to meet in real time for industrial control system
Ask, therefore traditional ethernet technology is difficult to meet that industrial control system is accurate, the requirement of real-time of timed communication.
3) system architecture bad adaptability
C/S tactic patterns can not meet the needs of long-distance user to local center monitoring, and poor compatibility, transplanting is difficult, opens
Hair cost seems higher, if hardware is upgraded, software will also upgrade therewith, improve the exploitation O＆M cost of system.
B/S tactic patterns cause customer terminal webpage response speed to decline because of the delay issue of network transmission so that single long-range
The monitor speed of monitoring is slower.
Based on this, in order to facilitate electric power enterprise is quick, real-time monitoring site machine operation, by using a peace
Complete reliable, the flexible, industrial monitoring system of efficiency high, wind-powered electricity generation enterprise is set to realize " centralized Control, the few people's value of wind power plant
Keep ", remote management wind, farm site running situation, reduce O＆M cost, improve the efficiency of management, preferably promote area production and
The development of living standard, above mentioned problem are urgently to be resolved hurrily.
The content of the invention
To solve the above problems, the present invention proposes a kind of Intelligent wind power field of ciphering type Profinet communication modes
SCADA system designs.
The Intelligent wind power field SCADA system of ciphering type Profinet communication modes of the present invention specifically includes blower fan and monitored on the spot
Three system, wind power plant central monitoring system and remote internet monitoring system parts.
1st, monitoring system is made up of the blower fan field sensor module and live PLC module on the spot.
The field sensor module, is arranged in wind-driven generator tower, mainly responsible collection site data, then will
Data are sent to PLC module.
The live PLC module, is arranged in wind-driven generator tower switch board, passes through the analog quantity of sensor
The parameter values such as input channel collection wind speed, wind-force, wind direction；Being sent by the output channel of analog quantity has OFF signal, and blower fan is entered
Row variable frequency regulating speed control, and equipment is controlled by digital output passage.The PLC stores field data,
And field data is uploaded to by the upper PC of central control room by Profinet EPAs.
2nd, the wind power plant central monitoring system is by the upper PC module of central control room, OPC DA server modules, OPC
XML-DA server modules and Web server module composition.The wind power plant central monitoring system is field level and remote monitoring
The hinge of management level, complete monitoring and management to each field apparatus, operational factor etc.；Alarm logging, form life are completed simultaneously
The service function such as check into historical data；Process data is stored, generates historical record.
The upper PC module of central control room, is arranged in wind power plant control room, is drawn according to the upper PC end
The switching in face controls and understood the operation and operation of wind-driven generator at any time.Including Reports module, alarm and event processing module,
Real-time and history curve module.The upper PC module can be developed with configuration software, can be calculated in center monitoring room
The real-time status and operational factor of machine displaying scene equipment, collection and the monitoring function of wind-powered electricity generation data are realized by LAN.
Wherein described Reports module, the band timescale data transmitted of mainly being stood using each PLC being stored in server are carried
For Report Forms Service function, after master system carries out statistics and analysis to the historical data in server, generation meets operator
The statement form of member's demand and printing.Management and operating personnel judge fan operation by the historical data trend of analysis system
Whether state is normal.
Alarm and event processing module, the failure that timely can be likely to occur in reporting field unit equipment running,
And by alarm mode or picture dispaly state warn management and operating personnel.Continue to monitor the event occurred in equipment running process
Barrier etc., while management and operating personnel are informed by alarm setting or monitored picture, solve the failure occurred in time, so as to keep away
There is major accident in Fan-free running.
Real-time and history curve module, the one or more object values formed are drawn by the data obtained from wind power plant
Graph curve, change dynamic of macroscopical record data in some cycles；History curve shows wind-powered electricity generation operational factor to timing
Between variation tendency in section, operating personnel define the relevant parameter of curve, and show history curve by database manipulation, more
Intuitively reflect fan operation situation, be easy to management and operating personnel to make corresponding adjustment.
The OPC DA server modules, it is arranged in wind power plant CSRC room, the OPC DA servers, by wind-powered electricity generation
Collection in worksite to real-time data memory get up, and real time data is analyzed on backstage, calculated, display each module of blower fan
Running situation, generate history report.Manager by accessing the OPC DA servers, obtain fan operation real time data,
Historical storage data etc..
The OPC XML-DA server modules, are arranged in wind power plant control room, should by OPC by Web service technology
With whole network is expanded to, existing OPC DA servers are subjected to secondary development, will be original by an XML wrapper
OPC XML server XMLization, externally provide Web service.Efficiently solve OPC communication protocols in existing wind power plant SCADA system
View by the disadvantage of fire wall can not make that reliable telecommunication can be realized in SCADA system.
The Web server module, it is arranged in wind power plant control room, when the Web browser and the OPC XML-
DA servers establish connection, and are issued by client when asking, and the OPC XML-DA servers respond the request, and will
XML file feeds back to the Web browser, and remote management and operating personnel can check data text by the Web browser
Part.
3rd, the remote internet monitoring system is made up of Web browser module.
The Web browser module so that the management in strange land and operating personnel remotely check wind power plant by Internet
Unit operation situation and all kinds of parameter values, so as to realize the remotely function such as the monitoring to wind power plant and plant maintenance.Manager exists
Line sends dispatch command, carries out real-time monitoring and scheduling to wind power plant unit equipment by the Web browser, reduces wind power plant fortune
Major accident and failure during row.
The Intelligent wind power field SCADA system of the ciphering type Profinet communication modes employs what B/S and C/S was combined
Framework development mode, is different from traditional single B/S or C/S architecture modes, and the system can not only pass through C/S model realization pair
The monitoring of local wind power plant, and the monitoring to the wind power plant can be remotely realized in the case of strange land by B/S patterns.Effectively
The problem of improving system architecture bad adaptability.So that system monitoring is no longer limited to local monitor, solves monitoring distance
The problem of, and also solve that speed present in remote monitoring is slow, reliability is not high and real-time is also be not as high as local monitor
The problems such as.The management in strange land and operating personnel pass through the web browsing using B/S patterns monitoring wind power plant in Terminal Server Client
Device checks fan operation parameter value, realizes management and operation to blower fan.Local management and operating personnel are then by using C/S
Pattern is monitored and managed to wind power system.The LAN dual monitoring of monitoring and remote internet on-line monitoring in real time is realized,
Wind-powered electricity generation enterprise is realized " centralized Control, the few man on duty " of wind power plant, greatly reduce O＆M cost, improve the efficiency of management.
4th, the data transfer of the Intelligent wind power field SCADA system of the ciphering type Profinet communication modes.
The PLC transmits the data collected by bottom PLC transmitters and upper PC receiver.Connecing
Receiving end, it is combined by Profinet EPAs with frame type identifier, the data frame of transmission is identified.According to described
Database server registry information, user name, encrypted message with the transmission of bottom PLC match, it is ensured that packet exists
There is fixed security authentication mechanism in transmitting procedure.The DES algorithm for encryption is that random character produces random key, the key
The upper PC receiver is sent to by data frame and is decrypted.According to the PLC numberings and controller type mark in frame
Know, and database server information matches, it is determined that receiving the data that wind, farm site gathers in real time.The upper PC connects
After the real time data for receiving device received data packet, monitored in real time by configuration software.Shown in comprising the following steps that：
Step 1, the analog signalses collected in real time by sensor are converted to numeral to the blower fan by monitoring system on the spot
Measure in signal deposit PLC, site manager checks field apparatus running status and all kinds of parameters by PLC touch-screens
Value, completes the scheduling feature to field apparatus；
Step 2, real time data is sent to wind-powered electricity generation by the PLC by Profinet EPA communication protocols
Center court monitoring system, the upper PC of central control room receives the real time data and displaying scene picture and equipment operation shape
State real-time parameter value；
Step 3, the upper PC receives the data that lower computer system collects, while data are stored by LAN
To OPC DA servers, i.e., so-called database server；
Step 4, data are reached OPC XML-DA servers, the OPC XML-DA clothes by the OPC DA servers simultaneously
Business device stores real time data in xml format；
Step 5, client user correspond to that the function services at interface send to Web server by the Web browser please
Instruction is asked, then, the Web server starts to lead to according to the request instruction that client is sent and the OPC XML-DA servers
Letter；
Step 6, the Web server and OPC XML-DA server communications, according to specific OPC interface regulation enforcement phase
Close request and obtain relevant data, response results are shown by Web browser；
Step 7, if fan operation breaks down, it is necessary to remotely adjust fan operation state, the Web server will be with
OPC DA servers are communicated, and request are sent into upper PC, the upper PC picture and operational factor accordingly change；
Step 8, the upper PC will ask to be sent to live PLC, institute by Profinet EPAs
The instruction that live PLC parsing is communicated to each equipment by wind power plant central monitoring system, remote internet monitoring system is stated,
Association requests and execute instruction are responded, field apparatus is scheduled, the failure that blower fan occurs is solved, finally returns to response results
To Web browser client, operation requests are completed.
The blower fan uses Profinet industry ether on the spot between monitoring system and the wind power plant central monitoring system
Network Communication connects.Profinet EPAs have used a kind of timeslot-based timesharing scheduling Ethernet real-time communication method,
Increase by a layer protocol in traditional ethernet communication stack MAC layer, realize the United Dispatching to data, be not required to change original ether
On the premise of network operation mechanism, avoid CSMA/CD mechanism datas and communicate issuable conflict, improve communication scheduling can
By property.
The Profinet EPAs use isochronous mechanism, in multicycle transmitting procedure, are transmitted logical
Road is divided into IRT/ exploitation passages.IRT passages are used for carrying out IRT communications, transmit IRT data；Exploitation passage is used for carrying out RT communications
And RTC, RTA data are transmitted in standard traffic, wherein RT communications, standard traffic transmits NRT data.Flexibly communicated using RT and IRT
Characteristic, Internet resources are made full use of, optimize network structure, further increase the real-time characteristic of traditional ethernet.
Characterized in that, the bottom PLC transmitters are to the upper PC receiver request registration and log in.User's generation
After managing client-side program startup, log-on message is sent to database server first, the main contents of registration include the client
User name, password, IP address, the information such as listening port number, database server records these information, forms log-on message
Table.After succeeding in registration, system starts watcher thread, the packet that real-time listening port receives, is sentenced by relevant interface parsing
It is disconnected.Comprise the following steps that described.
Step 101, the upper PC receiver received data packet, performs register and authentication step, and the bottom PLC is sent
Device initiates INVITE registration requests to the upper PC receiver；
Step 102, judged according to the Registry of database server, if user name, password are correct, confirmed
INVITE message responds, and establishes communication, otherwise rejects packet；
Step 103, the bottom PLC transmitters initiate cipher key encryption process to the upper PC；
Step 104, the bottom PLC transmitters send random key to the upper PC；
Step 105, the upper PC receiver extraction key, uses the real-time RT/IRT numbers in secret key decryption packet
According to, be then passed to the database server, according to PLC numbering and PLC type matched；
Step 106, if the match is successful, matching result is back to the upper PC and received by the database server
Device, confirm specifying information；For example, PLC numberings 001, which represent PLC 1,002, represents PLC 2, distinguish successively not
With the PLC of numbering；PLC type 01 represents micro computer, and 02 represents minicomputer, and 03 represents medium-sized machine, and 04 represents
Large scale computer, 05 represents ultra-large type machine.Data Matching facilitates dilatation of the later stage to system PLC, carries out going deep into transformation；
Step 107, the upper PC will the match is successful feedback of the information to the bottom PLC transmitters, under continuing
The transmission of one packet；Circulation performs said process, the upper PC receiver received data packet, reaches configuration software client
Hold real-time display.
Data transfer enhances data transfer using log-in password login and DES algorithm for encryption technologies in communication process
During security.
Brief description of the drawings
Fig. 1 is the Intelligent wind power field SCADA system structural representation of ciphering type Profinet communication modes of the present invention, is wrapped
Include：Blower fan monitoring system, wind power plant central monitoring system, remote internet monitoring system on the spot.
Fig. 2 is the Profinet connections of the Intelligent wind power field SCADA system of ciphering type Profinet communication modes of the present invention
Establish and deletion and coded communication process schematic.
Fig. 3 is in the Intelligent wind power field SCADA system message transmitting procedure of ciphering type Profinet communication modes of the present invention
Real-time frame structural representation.
Embodiment
The technology of the present invention is preferably illustrated below in conjunction with the accompanying drawing in embodiment, is below specific descriptions.
The invention provides a kind of Intelligent wind power field SCADA system of ciphering type Profinet communication modes, the blower fan
Monitoring system is converted to the analog signalses collected in real time by sensor in digital quantity signal deposit PLC on the spot,
The PLC sends signal to the wind power plant CSRC system by Profinet EPA communication protocols
System, parses the instruction that each equipment is communicated to by the wind power plant central monitoring system, remote internet monitoring system.Management and behaviour
Locally monitoring in real time to wind power system can either be realized by C/S model by making personnel, and and can is enough realized long-range by B/S patterns
The strange land of wind power system is monitored in real time.
Fig. 1 gives the system structure diagram of the present invention, and the wind power plant real-time monitoring system that the present invention is implemented employs
The opening of decentralised control centralized management, dcs.Specially：The intelligence of this kind of ciphering type Profinet communication mode
Wind power plant SCADA system, specifically include blower fan monitoring system, wind power plant central monitoring system and remote internet monitoring system on the spot
System.
Monitoring system includes PLC module and gathers the sensor assembly of signal the blower fan on the spot.
The field sensor module, is arranged in wind-driven generator tower, mainly responsible collection site data, then will
Data are sent to PLC module.
The live PLC group module, is arranged in wind-driven generator tower switch board, passes through the simulation of sensor
Measure the parameter values such as input channel collection wind speed, wind-force, wind direction；Being sent by the output channel of analog quantity has OFF signal, to blower fan
Carry out variable frequency regulating speed control.The PLC stores field data, and by Profinet EPAs by various signals
It is uploaded to center monitoring room and database server.
The wind power plant central monitoring system includes the upper PC module of central control room, OPC DA server modules, OPC
XML-DA server modules and Web server module.
The upper PC module of central control room, is arranged in wind power plant control room, including Reports module, alarm and thing
Part processing module, real-time and history curve module.The upper PC module can be developed with configuration software, can be at center
The real-time status and operational factor of Control Room Computer display field apparatus, collection and the prison of wind-powered electricity generation data are realized by LAN
Control function.
Wherein described Reports module, the band timescale data transmitted of mainly being stood using each PLC being stored in server are carried
For Report Forms Service function, after master system carries out statistics and analysis to the historical data in server, generation meets operator
The statement form of member's demand and printing.Management and operating personnel judge fan operation by the historical data trend of analysis system
Whether state is normal.
Alarm and event processing module, the failure that timely can be likely to occur in reporting field unit equipment running,
And by alarm mode or picture dispaly state warn management and operating personnel.Continue to monitor the event occurred in equipment running process
Barrier etc., while management and operating personnel are informed by alarm setting or monitored picture, solve the failure occurred in time, so as to keep away
There is major accident in Fan-free running.
Real-time and history curve module, the one or more object values formed are drawn by the data obtained from wind power plant
Graph curve, change dynamic of macroscopical record data in some cycles；History curve shows wind-powered electricity generation operational factor to timing
Between variation tendency in section, operating personnel define the relevant parameter of curve, and show history curve by database manipulation, more
Intuitively reflect fan operation situation, be easy to management and operating personnel to find failure and realize overall scheduling.
The OPC DA server modules, it is arranged in wind power plant CSRC room, the OPC DA servers, by wind-powered electricity generation
Collection in worksite to real-time data memory get up, and real time data is analyzed on backstage, calculated, display each module of blower fan
Running situation, generate history report.Manager by accessing the OPC DA servers, obtain fan operation real time data,
Historical storage data etc..
The OPC XML-DA server modules, are arranged in wind power plant control room, should by OPC by Web service technology
With whole network is expanded to, existing OPC DA servers are subjected to secondary development, will be original by an XML wrapper
OPC XML server XMLization, externally provide Web service.Efficiently solve OPC communication protocols in existing wind power plant SCADA system
View by the disadvantage of fire wall can not make that reliable telecommunication can be realized in SCADA system.
The Web server module, it is arranged in wind power plant control room, when the Web browser and the OPC XML-
DA servers establish connection, and are issued by client when asking, and the OPC XML-DA servers respond the request, and will
XML file feeds back to the Web browser, and remote management and operating personnel can check data text by the Web browser
Part.
Remote internet monitoring system, including remote monitoring computer Web browser module.
The Web browser module so that the management in strange land and operating personnel remotely check wind power plant by Internet
Unit operation situation and all kinds of parameter values, so as to realize in the case of strange land the remotely work(such as the monitoring to wind power plant and plant maintenance
Energy.Manager sends dispatch command online, and real-time monitoring and scheduling is carried out to wind power plant unit equipment by the Web browser,
Reduce the major accident and failure in wind power plant running.
Monitoring system is mainly used in that data are gathered, uploaded by sensor the blower fan on the spot, completes wind, farm site fortune
The real-time Transmission of row data, the main communication pattern for using OPC, there is provided OPC communication services, use OPC XML-DA control systems
Communication protocol is developed.The Web server of the upper PC services as the OPC XML-DA servers and OPC DA
The agency of device, the Web client is connected with each server, provided to long-distance user to the live access of this ground fan.Have
Solving OPC communication protocols in existing wind power plant SCADA system to effect can not be made in SCADA system by the disadvantage of fire wall
Reliable telecommunication can be realized.The wind power plant central monitoring system, realize the statistics to wind-powered electricity generation data, analysis and monitoring
Function, operational management, plant maintenance, generated energy size to wind power plant are uniformly scheduled.The remote internet monitoring system
System, the change of the remote monitoring wind-powered electricity generation data message in the case of strange land is realized by the Web browser.
The PLC transmits the data collected by bottom PLC transmitters and upper PC receiver.Connecing
Receiving end, it is combined by Profinet EPAs with frame type identifier, the data frame of transmission is identified.According to described
Database server registry information, user name, encrypted message with the transmission of bottom PLC match, it is ensured that packet exists
There is fixed security authentication mechanism in transmitting procedure.The DES algorithm for encryption is that random character produces random key, the key
The upper PC receiver is sent to by data frame and is decrypted.According to the PLC numberings and controller type mark in frame
Know, and database server information matches, it is determined that receiving the data that wind, farm site gathers in real time.The upper PC connects
After the real time data for receiving device received data packet, monitored in real time by configuration software.Shown in comprising the following steps that：
Step 1, the analog signalses collected in real time by sensor are converted to numeral to the blower fan by monitoring system on the spot
Measure in signal deposit PLC, site manager checks field apparatus running status and various parameters by PLC touch-screens
Value, completes the scheduling feature to field apparatus；
Step 2, real time data is sent to by the PLC by Profinet real-time industrial ethernet communication protocols
The wind power plant central monitoring system, the upper PC of central control room receives the real time data and displaying scene picture and equipment fortune
Row state real-time parameter value；
Step 3, the upper PC receives the data that lower computer system collects, while data are stored by LAN
To OPC DA servers, i.e., so-called database server；
Step 4, data are reached OPC XML-DA servers, the OPC XML-DA clothes by the OPC DA servers simultaneously
Business device stores real time data in xml format；
Step 5, client user correspond to that the function services at interface send to Web server by the Web browser please
Instruction is asked, then, the Web server starts to lead to according to the request instruction that client is sent and the OPC XML-DA servers
Letter；
Step 6, the Web server and OPC XML-DA server communications, according to specific OPC interface regulation enforcement phase
Close request and obtain relevant data, response results are shown by Web browser；
Step 7, if fan operation breaks down, it is necessary to remotely adjust fan operation state, the Web server will be with
OPC DA servers are communicated, and request are sent into upper PC, the upper PC picture and operational factor accordingly change；
Step 8, the upper PC will ask to be sent to live PLC, institute by Profinet EPAs
The instruction that live PLC parsing is communicated to each equipment by wind power plant central monitoring system, remote internet monitoring system is stated,
Association requests and execute instruction are responded, field apparatus is scheduled, the failure that blower fan occurs is solved, finally returns to response results
To Web browser client, operation requests are completed.
On the architecture basics of above-mentioned wind power plant SCADA system, implement using the ciphering type Profinet works in the present invention
Industrial Ethernet realizes real-time, the safe transmission to field data.As shown in Figure 2 the present invention in ciphering type Profinet industry with
Net very much the data frame structure schematic diagram of transmission.
The data collected are transmitted by the PLC by Profinet EPAs.In receiving terminal, by
Profinet EPAs are combined with frame type identifier, and the data frame of transmission is identified.There is cipher mark in frame,
Contrasted with information in database server, it can be ensured that frame has fixed security authentication mechanism in transmitting procedure.The DES algorithms
Encryption is that random character produces random key, and the key is sent to the Profinet receivers by data frame and solved
It is close.According to the PLC numberings and controller type mark in frame, contrasted with information in database server, it is determined that the number received
According to being that the PLC of reference numeral gathers the data of upload in real time, and classified.The host computer confirms that receiving data has
After effect, monitored in real time by SCADA configuration systems.
The real time data that Fig. 2, Fig. 3 are illustrated between the upper PC and bottom PLC passes through ciphering type Profinet works
Industrial Ethernet real-time Transmission process.After User Agent Client program starts, log-on message is sent to database server first,
The information such as user name of the main contents of registration including the client, password, IP address, listening port number, database server
These information are recorded, form Registry.After succeeding in registration, system starts watcher thread, what real-time listening port received
Packet, pass through relevant interface analysis judgment.Specifically include following steps：
Step 101, the upper PC receiver received data packet, performs register and authentication step, and the bottom PLC is sent
Device initiates INVITE registration requests to the upper PC receiver；
Step 102, judged according to the Registry of database server, if user name, password are correct, confirmed
INVITE message responds, and establishes communication, otherwise rejects packet；
Step 103, the bottom PLC transmitters initiate cipher key encryption process to the upper PC；
Step 104, the bottom PLC transmitters send random key to the upper PC；
Step 105, the upper PC receiver extraction key, uses the real-time RT/IRT numbers in secret key decryption packet
According to being then passed to the database server, matched；
Step 106, if data are in the database server, the match is successful, and the database server is by matching result
The upper PC receiver is back to, confirms specifying information；For example, PLC numberings 001 represent the representative of PLC 1,002
PLC 2, the PLC of different numberings is distinguished successively；PLC type 01 represents micro computer, 02 represent it is small-sized
Machine, 03 represents medium-sized machine, and 04 represents large scale computer, and 05 represents ultra-large type machine.Data Matching facilitates the later stage to system PLC
Dilatation, carry out going deep into transformation；
Step 107, the upper PC will the match is successful feedback of the information to the bottom PLC transmitters, under continuing
The transmission of one packet；
Circulation performs said process, the upper PC receiver received data packet, it is real-time to reach configuration software client
Display.
Data transfer is using log-in password login and DES algorithm for encryption technologies in communication process, and feasible system is to reality
When data safe transmission, prevent invader from sabotaging the nominal situation of wind power plant, reached safe and reliable purpose, effectively
Improve wind farm data transmission safety issue.
The Intelligent wind power field SCADA system of the ciphering type Profinet communication modes employs what B/S and C/S was combined
Framework development mode, is different from traditional single B/S or C/S architecture modes, and the system can not only pass through C/S model realization pair
The monitoring of local wind power plant, and the monitoring to the wind power plant can be remotely realized in the case of strange land by B/S patterns.Effectively
The problem of improving system architecture bad adaptability.So that system monitoring is no longer limited to local monitor, solves monitoring distance
The problem of, and also solve that speed present in remote monitoring is slow, reliability is not high and real-time is also be not as high as local monitor
The problems such as.The management in strange land and operating personnel pass through the web browsing using B/S patterns monitoring wind power plant in Terminal Server Client
Device checks fan operation parameter value, realizes management and operation to blower fan.Local management and operating personnel are then by using C/S
Pattern is monitored and managed to wind power system.Realize the dual prison that LAN monitoring in real time and remote internet on-line monitoring combine
Control, fully makes wind-powered electricity generation enterprise realize " centralized Control, the few man on duty " of wind power plant, greatly reduces O＆M cost, improves management effect
Rate.
In summary, presently preferred embodiments of the present invention is these are only, each structure, set location and communication modes are all can
The transformation carried out with what is be varied from the basis of technical solution of the present invention to individual part and equivalents, should not be excluded
Outside protection scope of the present invention.
Claims (4)
1. the Intelligent wind power field SCADA system of a kind of ciphering type Profinet communication modes, it is characterised in that specifically include blower fan
Monitoring system, wind power plant central monitoring system and remote internet monitoring system on the spot.
2. blower fan as claimed in claim 1 monitoring system on the spot, the analog signalses collected in real time by sensor are changed
It is stored in for digital quantity signal in PLC, then by touch-screen to the real-time monitoring in scene, it is characterised in that：
Step 1, monitoring system is mainly used in that data are gathered, uploaded by sensor the blower fan on the spot, completes wind, farm site
The real-time Transmission of equipment operating data.
Step 2, live PLC group, the parameters such as wind speed, wind-force, wind direction are gathered by the analog input channel of sensor；
Frequency control signal is sent to blower fan by analog output channel；
Step 3, the feedback signal of field apparatus is received by digital quantity input channel, and by digital output passage to equipment
It is controlled.Various signals are uploaded to central control room by the PLC by Profinet EPAs.
3. wind power plant central monitoring system as claimed in claim 1, the data collected are passed through into bottom by the PLC
Layer PLC transmitters are transmitted to upper PC receiver.In receiving terminal, by Profinet EPAs and frame type identifier phase
With reference to the data frame of transmission is identified.According to the database server registry information, passed with bottom PLC
Defeated user name, encrypted message matching, it is ensured that packet has fixed security authentication mechanism in transmitting procedure.The DES is calculated
Method encryption is that random character produces random key, and the key is sent to the upper PC receiver by data frame and carried out
Decryption.According to the PLC numberings and controller type mark, and database server information matches in frame, it is determined that receiving wind
The data that electric field gathers in real time.After the real time data of the upper PC receiver received data packet, pass through SCADA configuration systems
Monitored in real time.It is characterized in that：
Step 101, the upper PC receiver received data packet, perform register and authentication step, the bottom PLC transmitters to
The upper PC receiver initiates INVITE registration requests；
Step 102, judged according to the Registry of database server, if user name, password are correct, confirm that INVITE disappears
Breath response, establishes communication, otherwise rejects packet；
Step 103, the bottom PLC transmitters initiate cipher key encryption process to the upper PC；
Step 104, the bottom PLC transmitters send random key to the upper PC；
Step 105, the upper PC receiver extraction key, using the real-time RT/IRT data in secret key decryption packet,
The database server is then passed to, is matched；
Step 106, if the match is successful in the database server for the data of the upper PC reception, the database clothes
Matching result is back to the upper PC receiver by business device, confirms specifying information；For example, PLC numberings 001 represent PLC controls
Device 1,002 processed represents PLC 2, distinguishes the PLC of different numberings successively；PLC type 01 represents miniature
Machine, 02 represents minicomputer, and 03 represents medium-sized machine, and 04 represents large scale computer, and 05 represents ultra-large type machine.Data Matching facilitates the later stage to being
The dilatation for PLC of uniting, carries out going deep into transformation；
Step 107, the upper PC will the match is successful feedback of the information to the bottom PLC transmitters, continue next number
According to the transmission of bag.
4. remote internet monitoring system as claimed in claim 1, including remote monitoring computer Web browser.Its feature
It is：
The Web browser so that the manager for being distributed in different places interacts with field device operation running status, passes through
Internet internets using common Web browser can intuitively the running situation of observation site equipment and it is various in real time
Parameter value；Operating personnel send dispatch command online, carry out monitoring in real time to wind power plant unit equipment by Web browser and adjust
Degree, reduce major accident and failure in wind power plant running.
In summary, presently preferred embodiments of the present invention is these are only, each structure, set location and communication modes are all to have
Changed, the transformation carried out on the basis of technical solution of the present invention to individual part and equivalents, should not be excluded at this
Outside the protection domain of invention.
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| CN111123849A (en) * | 2018-10-30 | 2020-05-08 | 施耐德电气工业公司 | Method and apparatus for industrial control |
| CN110995774A (en) * | 2019-09-30 | 2020-04-10 | 大唐可再生能源试验研究院有限公司 | Universal SCADA system for wind power plant |
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| CN112180816A (en) * | 2020-10-20 | 2021-01-05 | 河北匠心智联软件技术有限公司 | Management and control system of compressor air system based on Internet of things cloud platform |
| CN112491833A (en) * | 2020-11-16 | 2021-03-12 | 东方电气风电有限公司 | Data safety transmission method for central monitoring system of wind turbine generator |
| CN112904787A (en) * | 2021-01-15 | 2021-06-04 | 上海电机学院 | Large-scale wind-powered electricity generation field transformer substation environmental monitoring system |
| CN112787404A (en) * | 2021-01-29 | 2021-05-11 | 国电电力内蒙古新能源开发有限公司 | Regional monitoring system based on intelligent operation and network security deep fusion |
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| EP4163493A1 (en) * | 2021-10-11 | 2023-04-12 | Wobben Properties GmbH | Method for providing set values for a wind farm controller and a wind farm server and system therefor |
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