CN103501348A - Communication method and system for master control system and monitoring system of wind generating set - Google Patents
Communication method and system for master control system and monitoring system of wind generating set Download PDFInfo
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- CN103501348A CN103501348A CN201310486520.3A CN201310486520A CN103501348A CN 103501348 A CN103501348 A CN 103501348A CN 201310486520 A CN201310486520 A CN 201310486520A CN 103501348 A CN103501348 A CN 103501348A
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Abstract
The invention provides a communication method and system for a master control system and a monitoring system of a wind generating set. The method comprises the following steps: in a communication process, storing each digital quantity in a bit storage space and integrating the transmitted data quantities; transmitting; after a monitoring end receives data, reducing the received data into digital quantities of two different states by using the monitoring system. According to the method and the system, the technical problems of high traffic, low communication speed and poor timeliness caused by direct transmission of a large quantity of digital quantities in the master control system to the monitoring system in the prior art are solved; the digital quantities in the master control system are integrated, each digital quantity occupies the storage space of one bit, and the digital quantities needing to be transmitted of the variable of a four-bit storage space are reduced by 31/32, so that the problem of strict limitation of configuration software on the number of communication points is solved, the transmission quantity is reduced greatly, the transmission speed is increased, and the communication timeliness and stability are enhanced. The communication method is skilful in concept, is simple, and is easy to implement.
Description
Technical field
The present invention relates to the means of communication and the system of a kind of wind generating set main control system and supervisory control system.Belong to technical field of wind power generation.
Background technology
Wind energy is a kind of clean renewable green energy resource, and the amount of accumulateing is huge, and the southeastern coast of China, the Inner Mongol, Xinjiang and Gansu one band wind energy resources are very abundant.Wind power generation is the principal mode of Wind Power Utilization, and wind power generation is to have economy most in all new forms of energy, one of renewable energy power generation mode that melts clockwork spring part and commercialized development prospect on the largest scale.
Wind-driven generator is the most extensive topmost equipment of current Wind Power Utilization, and wind power generator control system extends through each part of blower fan, master control is equivalent to the brain of wind power system, so the whether reliable and stable safety that is directly connected to operating state, energy output and the equipment of wind-driven generator of control system.Because the information of master control system can't directly be checked, need to carry out monitoring and controlling to equipment by supervisory control system, to realize that data record, equipment are controlled, inputting user command, change parameter, the display system running status, reach the functions such as fault-signal warning.Therefore stability and the high efficiency of master control system and supervisory control system communication just seem particularly important.
In general, the single wind generator group need to comprise the analog quantity of 30 left and right and the digital quantity of 600 left and right with the data volume of the communication of supervisory control system, comprising the digital quantity of a large amount of expression states.Traditional means of communication are when carrying out the transmission of digital quantity variable, each digital quantity has accounted for the space of a byte-sized, and in fact each digital quantity only needs the memory space of a position just enough, each byte has comprised 8 positions, and therefore digital quantitative change amount of every transmission will be wasted the space of 7 positions.If central monitoring system, need to gather the blower fan data of a wind field simultaneously, calculate with each wind field 33 Fans, need nearly 20000 data of transmission, or centralized monitoring system, need to gather the data of a plurality of wind fields, 10 wind fields of take are calculating simultaneously, just need nearly 200000 data of transmission, the data volume of transmission will be very large in this case, communication speed will be very slow, and easily lose data, poor in timeliness.
Summary of the invention
For this reason, technical problem to be solved by this invention is under traditional communication modes when carrying out the transmission of digital quantity variable, each digital quantity has accounted for the space of a byte-sized, and in fact each digital quantity only needs the memory space of a position just enough, each byte has comprised 8 positions, and therefore digital quantitative change amount of every transmission will be wasted the space of 7 positions, cause simultaneously the transmission data volume will be very large, communication speed will be very slow, and easily lose data, poor in timeliness.Thereby the means of communication and the system of a kind of wind generating set main control system and supervisory control system are proposed.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
The means of communication of a kind of wind generating set main control system and supervisory control system, in the process of carrying out communication, each digital quantity is stored in a position memory space successively, digital quantity to transmission is integrated processing, then transmitted, after monitoring client is received data, restored into the digital quantity that originally there are two kinds of different conditions by supervisory control system.
Described digital quantity is the digital quantity in master control system.
The described digital quantity to transmission is integrated and is treated to: using the Digital definition of every four bytes store, be that a variable is transmitted as a point.
Digital quantity after integrating is transferred to monitoring client by physical link.
The processing mode that described supervisory control system is reduced to the digital quantity after integrating is:
Variable by the nybble after integrating, after carrying out AND-operation with 32 hexadecimal numbers 00000001, obtain the first digit amount;
Described nybble variable is moved to right to one, then, after carrying out AND-operation with 32 hexadecimal numbers 00000001, obtain the second digit amount, make to use the same method, until handle each data of described four bytes store.
Described moving to right after one, high-order assignment is " 0 ".
The storage 4 byte lengths of data deficiencies the time, high-order assignment is " 0 ".
The communication system of a kind of wind generating set main control system and supervisory control system comprises:
Digital quantity position storage integration module: be stored in successively a position memory space for making each digital quantity, the digital quantity of transmission is integrated to processing;
Communication transmission module: for the digital quantity by after integrating, be transferred to monitoring client;
Digital quantity recovery module: the digital quantity after integrating is reduced for supervisory control system.
Described digital quantity is the digital quantity in master control system.
The described digital quantity to transmission is integrated and is treated to: using the Digital definition of every four bytes store, be that a variable is transmitted as a point.
Digital quantity after integrating is transferred to monitoring client by physical link.
Described digital quantity recovery module comprises:
AND-operation unit: for each 32 bit data of taking out four bytes, after carrying out AND-operation with 32 hexadecimal numbers 00000001, as a digital quantity;
The shifting function module: move to right one for 32 bit data by described four bytes, then after carrying out AND-operation with 32 hexadecimal numbers 00000001, as a digital quantity;
Detect loop module, whether handle for detection of each of 32 bit data of described four bytes.
Described moving to right after one, high-order assignment is " 0 ".
The storage 4 byte lengths of data deficiencies the time, high-order assignment is " 0 ".
Technique scheme of the present invention has the following advantages compared to existing technology.
(1) the invention provides the means of communication of a kind of wind generating set main control system and supervisory control system.In the process of carrying out communication, each digital quantity is stored in a position memory space successively, the digital quantity of transmission is integrated to processing, then transmitted, after monitoring client is received data, be reduced into the digital quantity that originally there are two kinds of different conditions by supervisory control system.Digital quantity in master control system has been carried out integrating and processed, each digital quantity takies the memory space of a position, using the Digital definition of every four bytes store, be that a variable is transmitted as a point, the data volume that needs transmission will be original 1/32nd, the count problem of restriction of the strict communication that has overcome configuration software, make the transmission quantity of data greatly reduce, and improved the speed of transmission, make the ageing higher of supervisory control system, also improved the stability of communication simultaneously.Be skillfully constructed, method is simple, is easy to realize.
(2) means of communication of wind generating set main control system provided by the invention and supervisory control system, the processing mode employing that described supervisory control system is reduced to the digital quantity after integrating is carried out carrying out AND-operation with 32 hexadecimal numbers 00000001 to 32 bit data of described four bytes and is obtained the first digit amount, and then carry out AND-operation with 32 hexadecimal numbers 00000001 again after the shifting function of of being moved to right and obtain the second digit amount, by that analogy, until handle all digital quantities, method is simple, is convenient to computing.
(3) means of communication of wind generating set main control system provided by the invention and supervisory control system, each digital quantity is stored in a position memory space, make each byte can preserve eight digital quantitative change amounts, the memory space taken is become to original 1/8th, save memory space, improved transmission speed.
(4) communication system of wind generating set main control system provided by the invention and supervisory control system, utilize the method for described wind turbine generator supervisory control system, digital quantity in master control system has been carried out integrating and processed, make the transmission quantity of data greatly reduce, improved the speed of transmission, make the ageing higher of supervisory control system, also improved the stability of communication system simultaneously.The count problem of restriction of the strict communication that has overcome configuration software while realizing by configuration software, cost is lower, is convenient to realize.
The accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the means of communication data storage schematic diagram of traditional wind turbine generator supervisory control system;
Fig. 2 is a kind of wind generating set main control system of one embodiment of the invention and the means of communication flow chart of supervisory control system;
Fig. 3 is that the Data Integration of the means of communication of a kind of wind generating set main control system of one embodiment of the invention and supervisory control system is processed schematic diagram;
Fig. 4 is that schematic diagram is processed in the data reduction of the means of communication of a kind of wind generating set main control system of one embodiment of the invention and supervisory control system.
Embodiment
embodiment mono-
Traditional means of communication are directly each digital quantity variable to be transferred to monitoring client, and these digital quantity variablees only account for the memory space of a position, and as shown in Figure 1, therefore digital quantity of every transmission will be wasted the memory space of seven positions.In modern industry control, the main tool of Development of supervision system based on PLC is mainly by programmable logic controller (PLC) PLC and configuration software, and the strict communication of the configuration software restriction of counting has often affected the flexibility of its programming, in configuration software, a numerical variable is a point, and configuration software often can not meet the communication need of mass data.
The present embodiment provides the means of communication of a kind of wind generating set main control system and supervisory control system, and described digital quantity is for meaning the quantity of state of two kinds of different conditions, by the binary number representation of a position.Its method flow diagram as shown in Figure 2, specifically comprises:
The first, in the process of carrying out communication, each digital quantity is stored in a position memory space successively, the digital quantity of transmission is integrated to processing.The described digital quantity to transmission is integrated and is treated to: using the Digital definition of every four bytes store, be that a variable is transmitted as a point.Described digital quantity is the digital quantity in master control system.As shown in Figure 3,32 digital quantitative change amounts are incorporated in the variable space of 4 bytes, during 4 byte lengths of data deficiencies of storage, high-order assignment is " 0 ".Here will integrate front 32 digital quantitative change amounts be defined as respectively A1, A2, A3 ... A17 ... A31, A32, by the variable-definition after integrating, be A, by the A1 assignment to A the 1st, by the A2 assignment to A the 2nd, the 32nd to A by the A32 assignment by that analogy, so just obtained for the variables A after the integration of transmission, originally 32 numerical variables take 32 points in configuration software, only account for a point in configuration software now.In the manner described above remaining all data is processed.For the communication data amount of existing wind turbine generator, in being incorporated into the variable space of 4 bytes, 32 digital quantitative change amounts just can meet communication need as a variable transmission, bring preferably effect.
The wind generating set main control system that the present embodiment provides and the means of communication of supervisory control system, each digital quantity is stored in a position memory space, make each byte can preserve eight digital quantitative change amounts, the memory space taken is become to original 1/8th, save memory space, improved transmission speed.
The second, the digital quantity A after integrating is transferred to monitoring client by physical link.
Three,, after monitoring client is received data, restored into the digital quantity with two kinds of different conditions by supervisory control system.The method that described supervisory control system is reduced to the digital quantity after integrating as shown in Figure 4, processing mode is: each 32 bit data of taking out four bytes after integrating, after carrying out AND-operation with 32 hexadecimal numbers 00000001,31 of described digital quantity A fronts are all copied as to 0, only retain the 1st as a digital quantity, the digital quantity A1 before namely integrating; 32 bit data of four bytes after described integration are moved to right to one, described moving to right after one, high-order assignment is " 0 ", then after carrying out AND-operation with 32 hexadecimal numbers 00000001, as the digital quantity A2 before integrating; 32 bit data of described four bytes are moved to right to one and carry out AND-operation with 32 hexadecimal numbers 00000001, the like, until handle each data of described four bytes store.In the manner described above remaining all data is processed the data after being reduced.
The processing mode employing that described supervisory control system is reduced to the digital quantity after integrating is carried out carrying out AND-operation with 32 hexadecimal numbers 00000001 to 32 bit data of described four bytes and is obtained the first digit amount, and then carry out AND-operation with 32 hexadecimal numbers 00000001 again after the shifting function of of being moved to right and obtain the second digit amount, by that analogy, until handle all digital quantities, method is simple, is convenient to computing.
As interchangeable execution mode, also 64 data can be incorporated into to the variable storage space of 8 bytes, the mode of Data Integration is identical with aforesaid way, will make the data volume of transmission for original 1/64th, for the king-sized master control system of data volume and communication system, will bring effect preferably.
The wind generating set main control system that the present embodiment provides and the means of communication of supervisory control system, in the process of carrying out communication, each digital quantity is stored in a position memory space successively, digital quantity to transmission is integrated processing, then transmitted, after monitoring client is received data, be reduced into the digital quantity that originally there are two kinds of different conditions by supervisory control system.Digital quantity in master control system has been carried out integrating and processed, each digital quantity takies the memory space of a position, using the Digital definition of every four bytes store, be that a variable is transmitted as a point, the data volume that needs transmission will be original 1/32nd, the count problem of restriction of the strict communication that has overcome configuration software, make the transmission quantity of data greatly reduce, and improved the speed of transmission, make the ageing higher of supervisory control system, also improved the stability of communication simultaneously.Be skillfully constructed, method is simple, is easy to realize.Be specially adapted to the communication of master control system and the supervisory control system of wind turbine generator.
embodiment bis-
The present embodiment provides a kind of communication system of wind turbine generator supervisory control system.Specifically comprise:
Digital quantity position storage integration module: be stored in successively a position memory space for making each digital quantity, the digital quantity of transmission is integrated to processing.Described digital quantity is the digital quantity in master control system.The storage 4 byte lengths of data deficiencies the time, high-order assignment is " 0 ".
The described digital quantity to transmission is integrated and is treated to: using the Digital definition of every four bytes store, be that a variable is transmitted as a point.
Communication transmission module: for the digital quantity by after integrating, be transferred to monitoring client.Digital quantity after integrating is transferred to monitoring client by physical link.
Digital quantity recovery module: the digital quantity after integrating is reduced for supervisory control system.Described digital quantity recovery module specifically comprises:
AND-operation unit: for each 32 bit data of taking out four bytes, after carrying out AND-operation with 32 hexadecimal numbers 00000001, as a digital quantity.
The shifting function module: move to right one for 32 bit data by described four bytes, described moving to right after one, high-order assignment is " 0 ", then after carrying out AND-operation with 32 hexadecimal numbers 00000001, as a digital quantity.
Detect loop module, whether handle for detection of each of 32 bit data of described four bytes.
The communication system of the wind turbine generator supervisory control system that the present embodiment provides, utilize the method for described wind turbine generator supervisory control system, digital quantity in master control system has been carried out integrating and processed, make the transmission quantity of data greatly reduce, improved the speed of transmission, make the ageing higher of supervisory control system, also improved the stability of communication system simultaneously.The count problem of restriction of the strict communication that has overcome configuration software while realizing by configuration software, cost is lower, is convenient to realize.
Obviously, above-described embodiment is only for example clearly is described, and is not the restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And the apparent variation of being extended out thus or change are still among the protection range in the invention.
Claims (14)
1. the means of communication of a wind generating set main control system and supervisory control system, it is characterized in that, in the process of carrying out communication, each digital quantity is stored in a position memory space successively, digital quantity to transmission is integrated processing, then transmitted, after monitoring client is received data, restored into the digital quantity that originally there are two kinds of different conditions by supervisory control system.
2. the means of communication of wind generating set main control system according to claim 1 and supervisory control system, is characterized in that, described digital quantity is the digital quantity in master control system.
3. the means of communication of wind generating set main control system according to claim 1 and 2 and supervisory control system, it is characterized in that, the described digital quantity to transmission is integrated and is treated to: using the Digital definition of every four bytes store, be that a variable is transmitted as a point.
4. the means of communication of wind generating set main control system according to claim 1 and supervisory control system, is characterized in that, the digital quantity after integrating is transferred to monitoring client by physical link.
5. the means of communication of wind generating set main control system according to claim 1 and supervisory control system, is characterized in that, the processing mode that described supervisory control system is reduced to the digital quantity after integrating is:
Variable by the nybble after integrating, after carrying out AND-operation with 32 hexadecimal numbers 00000001, obtain the first digit amount;
Described nybble variable is moved to right to one, then, after carrying out AND-operation with 32 hexadecimal numbers 00000001, obtain the second digit amount, make to use the same method, until handle each data of described four bytes store.
6. the means of communication of wind turbine generator supervisory control system according to claim 5, is characterized in that, described moving to right after one, and high-order assignment is " 0 ".
7. according to the means of communication of the arbitrary described wind turbine generator supervisory control system of claim 1-6, it is characterized in that, during 4 byte lengths of data deficiencies of storage, high-order assignment is " 0 ".
8. the communication system of a wind generating set main control system and supervisory control system, is characterized in that, comprising:
Digital quantity position storage integration module: be stored in successively a position memory space for making each digital quantity, the digital quantity of transmission is integrated to processing;
Communication transmission module: for the digital quantity by after integrating, be transferred to monitoring client;
Digital quantity recovery module: the digital quantity after integrating is reduced for supervisory control system.
9. the communication system of wind generating set main control system according to claim 8 and supervisory control system, is characterized in that, described digital quantity is the digital quantity in master control system.
10. the communication system of wind generating set main control system according to claim 8 and supervisory control system, it is characterized in that, the described digital quantity to transmission is integrated and is treated to: using the Digital definition of every four bytes store, be that a variable is transmitted as a point.
11. the communication system of wind generating set main control system according to claim 8 and supervisory control system, is characterized in that, the digital quantity after integrating is transferred to monitoring client by physical link.
12. the communication system of wind generating set main control system according to claim 8 and supervisory control system, is characterized in that, described digital quantity recovery module comprises:
AND-operation unit: for each 32 bit data of taking out four bytes, after carrying out AND-operation with 32 hexadecimal numbers 00000001, as a digital quantity;
The shifting function module: move to right one for 32 bit data by described four bytes, then after carrying out AND-operation with 32 hexadecimal numbers 00000001, as a digital quantity;
Detect loop module, whether handle for detection of each of 32 bit data of described four bytes.
13. the communication system of wind generating set main control system according to claim 12 and supervisory control system, is characterized in that, described moving to right after one, and high-order assignment is " 0 ".
14. the means of communication of according to Claim 8-13 arbitrary described wind turbine generator supervisory control systems, is characterized in that, during 4 byte lengths of data deficiencies of storage, high-order assignment is " 0 ".
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| CN102411616A (en) * | 2011-10-28 | 2012-04-11 | 北京地拓科技发展有限公司 | Method and system for storing data and data management method |
| CN102840101A (en) * | 2012-09-13 | 2012-12-26 | 成都阜特科技股份有限公司 | Distributed condition monitoring system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040054877A1 (en) * | 2001-10-29 | 2004-03-18 | Macy William W. | Method and apparatus for shuffling data |
| CN102221990A (en) * | 2011-05-26 | 2011-10-19 | 山东大学 | Instruction optimization method and processor for AES (Advanced Encryption Standard) symmetric encryption algorithm |
| CN102411616A (en) * | 2011-10-28 | 2012-04-11 | 北京地拓科技发展有限公司 | Method and system for storing data and data management method |
| CN102840101A (en) * | 2012-09-13 | 2012-12-26 | 成都阜特科技股份有限公司 | Distributed condition monitoring system |
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Application publication date: 20140108 |