CN102508925A - Method for implement of utility boiler operational performance analyzing system - Google Patents
Method for implement of utility boiler operational performance analyzing system Download PDFInfo
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Abstract
The invention provides a method for implement of utility boiler operational performance analyzing system, which is characterized in that commercial form software and real-time middleware software are combined so that powerful computing function and usability of the commercial form software can be given to full play while real-time processing and control function are organically integrated. Further, reliability of the utility boiler operational performance analyzing system is improved by using the real-time middleware technique, uniformity and accuracy of data can be guaranteed by means of an image data base used with the real-time middleware technique, and different application requirements of online optimization and off-line analysis can be well met.
Description
Technical field
The present invention relates to a kind of station boiler analysis of running performance system, relate in particular to a kind of configurable station boiler analysis of running performance system that adopts commercial form software and Real-Time Middleware software realization combining, belong to the Power Plant Thermal Process automatic field.
Background technology
Power industry is the important support of national economy and social development, but from always taking temperature, power industry also is " rich and influential family " of energy resource consumption and pollutant emission.And in the primary energy structure of China, the coal proportion is greater than 70%, and coal-fired thermal power generation unit also surpasses 75% in the ratio of national total installed capacity of electricity capacity, no matter is the coal consumption amount, or CO
2, SO
2, pollutant discharge amount such as NOx and flue dust all occupies the every profession and trade first place.Therefore, energy-saving and emission-reduction have become the key factor that realizes China's power industry sustainable development.Under this big background, no matter the station boiler analysis of running performance is that unit energy-saving run level is improved in power plant, reduces pollutant emission, and it is perfect and to research and develop new cleaning coal fired power generation technology all significant that still boiler maker carries out product.
At present, distribute computer control system DCS is more and more universal in the application of power plant, and function also from strength to strength.The data unit operation that can make full use of its collection and storage carries out analyzing to the station boiler performance comprehensively with effectively.Although so many as to make the ox carrying them perspire and to fill a house to the rafters for the research document of this respect, also there are many boiler performance Optimization Software products both domestic and external to obtain application both at home and abroad in power plant.But because the starting point of research is different with emphasis point; The product that each producer provides is again its exclusive data and format information memory and disposal route with the many employings of technology; Therefore; Although the production process information level of power plant improves constantly; Many power plant also are provided with plant level supervisory information system SIS specially, but the phenomenon of " information island " does not still obtain basic change, have greatly restricted these achievements in research and have directly adopted or promote the use in different research purposes with the user for other researchers with product.And the high various commercial Optimization Software of valuable product and applicating maintenance technical difficulty has also caused economical and technical obstruction to carrying out the work of station boiler analysis of running performance effectively.
See from the another one angle; Development along with computer software technology; The performance of various business softwares is greatly improved; Many functions even considerably beyond traditional special-purpose Industry Control and Optimization Software; Give full play to business software performance maturation, perfect in shape and function, application is convenient, upgrading is simple and characteristics such as cost advantage, adopts the solution of COTS (Commercial-off-the-shelf) pattern to become a kind of technology trends of Industry Control and information-based software field.
Summary of the invention
Technical matters to be solved by this invention is to the present domestic present situation that still lacks a kind of convenient effective station boiler analysis of running performance means; Technical characterstic to the monoblock scattered control system DCS of thermal power plant; Convenience and versatility advantage in conjunction with existing business software; A kind of implementation method that can satisfy the station boiler analysis of running performance system of different application demands such as power plant's operation instruction and the analysis of boiler maker properties of product conscientiously is provided; For realizing above-mentioned purpose, concrete technical scheme of the present invention is realized by following steps:
Station boiler analysis of running performance system comprises that one is equipped with in order to the commercial form software (1) of completion station boiler analysis of running performance function and the server (3) of Real-Time Middleware software (2); This server (3) can be realized data communication with historical data station (6) and man-machine interface station (7) in the monoblock scattered control system (5) through Real-Time Middleware software (2) and data transmission network (4), also can pass through data transmission network (4) simultaneously and realize data communication with client computer (8).
Except that above this standard configuration mode; Server (3) but also direct hosting in the historical data station (6) of monoblock scattered control system (5); And with the man-machine interface station (7) of client computer (8) host in monoblock scattered control system (5); At this moment data transmission network (4) is the real-time Communication for Power network (20) of monoblock scattered control system (5); Mirror database (9) is the real-time/historical data base of monoblock scattered control system (5), expands through the function on original monoblock scattered control system (5) hardware, realizes the on-line optimization guiding function of integrated station boiler runnability.
In addition; Can also be regularly from monoblock scattered control system (5) copy boiler operatiopn data; And unloading is in the mirror database (9) of server (3); At this moment server (3) need not to keep being connected with monoblock scattered control system (5), can realize the off-line analysis of station boiler runnability through mirror database (9).
The implementation method of station boiler analysis of running performance function is: adopt the secondary development tool SDK of commercial form software (1) support and the Real-Time Middleware software (2) of general programming language VC++/VB programming realization can realize communicating by letter of/historical data base real-time with monoblock scattered control system (5), accomplish the collection and the processing of boiler operatiopn data; The mirror database (9) of management operating on server (3); Write the station boiler analysis of running performance from the commercial form software of trend (1) and calculate required boiler operatiopn data, and result of calculation is write mirror database (9);
Commercial form software (1) has the data I/O software interface with Real-Time Middleware software (2), and can import configuration, calculating and the analysis of accomplishing the station boiler runnability on the data basis at it, and it is specifically realized by following steps:
Step 1, the boiler operatiopn data acquisition and processing (DAP):
Real-Time Middleware software (2) obtains the real-time and historical data of boiler operatiopn periodically from the historical data station (6) of monoblock scattered control system (5); And these boiler operatiopn data are stored in the mirror database (9) of server (3) according to the system point identical with monoblock scattered control system (5) sign SID; This mirror database (9) is by Real-Time Middleware software (2) management, to realize the filing and the retrieval of boiler operatiopn data;
Except that the boiler operatiopn data that directly collect from monoblock scattered control system (5), mirror database (9) also stores the extension point information that is obtained by Real-Time Middleware software (2) computing.Through the extension point information mode, system has realized the pre-service to the boiler operatiopn data with time series data characteristic, expanded general commercial form software (1) do not possess or realize comparatively the function of difficulty.
The extension point information of mirror database (9) storage can comprise aggregate-value, mean value, maximal value, minimum value, maximal value time of origin, minimum value time of origin, out-of-limit value, out-of-limit number of times, the out-of-limit duration of an at interval interior analog quantity of predefined ∑ T reporting period, the accumulated running time of switching value equipment;
Extension point information is calculated according to its configuration information (13) by Real-Time Middleware software (2) and is got, and comprises settings such as ∑ T reporting period, counting period, extension point stored number in the configuration information (13);
In mirror database, extension point information adds that with the system point sign SID of boiler operatiopn data tagged word identifies as it, and promptly extension point message identification XID is expressed as:
XID＝SID+XX
Here XX is the combination of predefined two English alphabets and numeral, to distinguish different extension point information.This related define method can solve SID matching check and data consistency problem easily.
Step 2, definition report data interface:
Definition has incoming page (10), calculates page or leaf (11), an output page (12) in commercial form software (1), and these pages or leaves all to have can be the not same page sign PID of Real-Time Middleware software (2) identification.Through the mode of special page definition, Real-Time Middleware software (2) can be realized data management effectively, has improved the reliability of software.Through page or leaf being carried out modes such as batch processing, also can improve the treatment effeciency of Real-Time Middleware software (2) to commercial form software (1).
Wherein also define the data column or row (15) that sign column or row (14) arranged and be adjacent in each incoming page (10) at least; Each cell of data column or row (15) is corresponding one by one with the cell of sign column or row (14), constitutes one and can be Real-Time Middleware software (2) recognition data input block DB; Each cell in the sign column or row (14) all can be inserted the system point sign SID of boiler operatiopn data or the sign XID of extension point information; And can be by Real-Time Middleware software (2) according to sign SID of the system point in the sign column or row (14) or extension point message identification XID; In data column or row (15) cell of correspondence, regularly write completion station boiler analysis of running performance by refresh cycle Δ T and calculate required input data, the Refresh Data mode is preestablished by the configuration information (13) of Real-Time Middleware software (2);
Same definition has one sign column or row (17) and data column or row (18) that are adjacent in each output page (12), can insert numerical value, formula or the Cell Link that commercial form software (1) allows at the cell of data column or row (18); Real-Time Middleware software (2) can be through the system point sign SID that inserts in sign column or row (17) each cell, and the value of corresponding data column or row (18) cell is write in the mirror database (9), realizes the storage of analysis result;
Calculating page or leaf (11) can adopt the existing method of commercial form software (1) to realize the calculating of station boiler analysis of running performance function; And with cell data on-link mode (OLM) realization reading of data from data column or row (15) cell of incoming page (10) between the page or leaf of its standard; And result of calculation write in the cell of data column or row (18) of output page (12), realize that automatically synchronization of data refreshes;
Calculate the configuration that the computing method that provide according to commercial form software (1) successively in the page or leaf (11) are accomplished the boiler performance analytic function at each; And boiler operatiopn data required in the configuration directly are linked as corresponding cells lattice in the data column or row (15), thereby make the boiler operatiopn data realization synchronous refresh that calculates configuration is good in the page or leaf (11) boiler performance analytic function and incoming page (10);
Each calculates the boiler performance analysis result that needs output in the page or leaf (11) can be positioned over one of this page or leaf output unit lattice (16) arbitrarily respectively; And in the data column or row (18) of output page (12), insert the link of output unit lattice (16), thereby realize calculating page or leaf (11) and output page (12) synchronization of data refreshes;
Step 4, station boiler analysis of running performance running software:
In commercial form software (1), open the station boiler analysis of running performance configuration file of accomplishing through step 1～step 3, and start the operation of Real-Time Middleware software (2);
Real-Time Middleware software (2) reads incoming page (10) and sign SID of the system point in the output page (12) and the extension point message identification XID that commercial form software (1) configuration is accomplished through page or leaf sign PID; And mate with system point sign SID in the mirror database, generate a data index;
Real-Time Middleware software (2) regularly writes the data column or row (15) corresponding with it with the boiler operatiopn data in the mirror database (9) by the definition that identifies column or row (14) in the incoming page (10) according to the refresh cycle Δ T of data directory and setting in configuration information (13); And, the value of its data column or row (18) is write synchronously the mirror database (9) of server (3) according to the definition that identifies column or row (17) in the output page (12);
Step 5, operation page protection and self diagnosis:
Real-Time Middleware software (2) run duration will lock incoming page (10), calculate the cell modify feature of page or leaf (11), output page (12); Except that accomplishing the data sync refresh function, Real-Time Middleware software (2) also will be accomplished its self diagnosis and adaptation function according to setting;
For guaranteeing data consistency and the software reliability of native system under on-line analysis modes such as on-line optimization guidance, Real-Time Middleware software (2) is designed with perfect self diagnosis and adaptation function, is specifically realized by following method;
(1) database SID verification: after Real-Time Middleware software (2) starts; Will be at first the system point sign SID of the boiler operatiopn data in the system point sign SID of definition in commercial form software (1) incoming page (10) and the output page (12) and the mirror database (9) that is stored in server (3) be carried out verification, and be given in the error message tabulation of non-existent system point sign SID in the mirror database (9);
(2) matching verification: Real-Time Middleware software (2) each refresh cycle before the data column or row (15) of incoming page (10) write data; All will mate verification to sign SID of the system point in the sign column or row (14) and extension point message identification XID; When its data directory of setting up when starting Real-Time Middleware software (2) there are differences; To stop to refresh of Real-Time Middleware software (2), and show the error message tabulation;
(3) point mass shows: Real-Time Middleware software (2) regularly, will be composed with special mark the data of abnomal condition according to the point mass position of the boiler operatiopn data of storage in the mirror database (9) when writing data to incoming page (10); Simultaneously; Its output result who participates in calculating is also remembered when writing mirror database (9) with corresponding point mass sign; When the required a plurality of boiler operatiopn data inputs of calculating have different point masses; Its correlation computations result will remember the minimum point quality with wherein when exporting mirror database (9) to, when Real-Time Middleware software (2) when normally stopping, will give " TIMEOUT " sign to the data point quality position that exports mirror database (9) to;
(4) automatic synchronizing function: Real-Time Middleware software (2) can be adjusted refresh cycle Δ T in real time according to the cpu load rate λ of server (3), when λ surpasses certain value, and will be according to λ numerical value automatically at refresh cycle initial value Δ T
0On the increment that adds up, thereby guarantee to calculate page data (11) refreshing and the input data hold time of the output of output page (12) and incoming page (10) synchronous, that is:
ΔT＝ΔT
0 λ＜x％(0＜x＜100)
ΔT＝ΔT
0×(1+f(λ)) λ≥x％
Setting according to configuration information (13); Real-Time Middleware software (2) can be with the boiler operatiopn data and the performance evaluation function result of calculation of storage in the mirror database (9), sends to through data transmission network (4) in the man machine interface software of client computer (7) to show.
The invention has the beneficial effects as follows and existing various cost an arm and a leg, use limitation big proprietary product and compared with techniques; Distribute computer control system DCS, commercial form software and middleware Technology are organically combined; Bring into play the powerful computing function of commercial form software and the characteristics convenient directly perceived of What You See Is What You Get to greatest extent; And adopt middleware Technology to realize the seamless link from the field data to the DESKTOP INFORMATION; Guarantee the high reliability request of commercial Application through various fault-tolerant and adaptability design, can satisfy the needs of multiple different application demand, improved the applicability and the convenience of station boiler analysis of running performance system greatly.
Description of drawings
Fig. 1 is a system architecture diagram of the present invention;
Fig. 2 is a software logic block diagram of the present invention;
Fig. 3 is an application example block diagram of the present invention.
Embodiment
Come embodiments of the invention are elaborated below in conjunction with accompanying drawing 1～accompanying drawing 3; Embodiment is being to implement under the prerequisite and provided concrete embodiment and system architecture with technical scheme of the present invention, but protection scope of the present invention is not limited to following embodiment.
The coal-fired ultra-supercritical boiler of certain 2 * 1000MW of power plant is 1,000,000 grade ultra supercritical units of domestic first platform synchronized construction boiler desulfurization denitrating system; In order better the pollutant emission index and the system for desulfuration and denitration operation conditions of unit to be monitored and to be analyzed; Adopt the system architecture shown in the accompanying drawing 1 of the present invention on the OVATION of Ai Mosheng company scattered control system basis; Set up the station boiler system for desulfuration and denitration historical data on-line analysis platform OIS (Office Industrial Solution) based on the MS Office System of Microsoft, its software logic block diagram is seen accompanying drawing 2.
The OIS system configuration is shown in accompanying drawing 3; The Real-Time Middleware software of OIS can be through the Ethernet switch that links to each other with OVATION historical data station; History data file after the compression is filed the district to the mirror database on the OIS server hard disc from the real-time Communication for Power Network Transmission of OVATION system with the mode of RTP; Transmission cycle is for once a day, and the transmission time is set to 0 o'clock midnight.At 8 o'clock in morning next day; The Real-Time Middleware software that runs on server will upgrade the book index in the mirror database filing district; When transmitting next time; Real-Time Middleware software will only compress non-existent new history file in the book index according to the history data file catalogue at book index inspection OVATION historical data station, and the transmission time then is transferred to the mirror database filing district on the server hard disc with compressed file next time again.
OIS adopts the computing instrument of MS Excel 2003 as the on-line analysis platform, and OIS Real-Time Middleware The software adopted VC++ programming language and MS office syetem SDK programming realize.Shown in accompanying drawing 1; Its function comprises three parts; First is a data acquisition function; Realize that through calling a real-time handler XNET.DLL XNET can directly visit the real-time data base of OVATION system with the UDP/API communication mode, also can transmit the history data file of OVATION system through the RTP mode.Second portion is data base administration and data processing function; This function is realized by XDB.DLL; XDB will be through the history data file of the OVATION system that backs up in data directory and the relationship memory database access mirror database, and handles the extension point information data.Third part is report data interface XCOM, and it moves with the mode of MS Excel add-in, according to the structure of system design with automatic read-write MS Excel is set.
According to the configuration of the completion of the step shown in the accompanying drawing 2 ultra supercritical coal-burning boiler system for desulfuration and denitration analysis of running performance function, the configuration when dispatching from the factory comprises 20 different MS Excel files altogether, comprising:
The main pressure of boiler load and unit, temperature value;
The running status of 400V and above motor;
Integral point value, maximal value and the aggregate-value etc. of major pollutants controlling index.
Comprise all in each MS Excel file that a page or leaf is designated the incoming page of IN1 and the output page that page or leaf is designated OUT; First of this page classified the OVATION historical data point identification SID or the extension point message identification XID of required monitoring point as, and second classifies a data rows corresponding with it as.When this document is opened; Real-Time Middleware software can check input or output in page or leaf first row insert SID number with mirror database in SID in the history data file in the up-to-date moment carry out matching check; If have SID number that does not conform to, will show an error listing;
When SID number of configuration when all correct; Real-Time Middleware software can be according to the setting among the configuration information file CONFIG.TXT under its operating file catalogue; The historical data afterwards of the initial moment that to set with the cycle of Δ T regularly writes in each cell of data rows, to realize the data back track function.
To difference data analysis constantly, only need the setting among the simple modification CONFIG.TXT can realize retrieval to corresponding moment data in the mirror database.As in order to add up the running status of boiler desulfurization denitrating system, can set up one reporting period ∑ T be one month analysis example, and defined corresponding extension point information.
Extension point information adds that with the system point sign SID of boiler operatiopn data tagged word identifies as it, and promptly extension point message identification XID is expressed as:
XID＝SID+XX
Here XX is the combination of predefined two English alphabets and numeral, to distinguish different extension point information.The SID that opens like the desulfurization bypass door is 10334039; Its month to date open-interval extension point message identification is 10334039OP; Behind the Real-Time Middleware running software can 0 o'clock midnight of first day next month to mirror database in SID be that the state of 10334039 point is differentiated; And calculate monthly its value for the genuine cumulative time, and the result is write mirror database with extension point sign XID.
Because the rate of load condensate of the real-time Communication for Power network of OVATION system and the cpu load rate of server all can change because of the operation and the manually-operated of various softwares; Therefore; The data acquisition and processing (DAP) work of Real-Time Middleware software all is arranged to be accomplished night; But in system's operational process especially the MS Excel example design of operation get when very huge and complicated, the situation of cpu load above 50% limit value of setting still might appear, at this moment Real-Time Middleware software can be according to cpu load; The refresh cycle Δ T of data in the instant adjustment MS Excel instance is to guarantee the synchronous of The whole calculations process.At this moment the refresh cycle will become:
ΔT＝ΔT
0 λ＜50
ΔT＝ΔT
0×(1+0.02λ) λ≥50
Be that rate of load condensate surpasses at 50% o'clock, the refresh cycle will prolong 1 times～2 times.
Since in the computation process Real-Time Middleware software lock incoming page (10), calculate the cell modify feature of page or leaf (11), output page (12), therefore significantly reduced computation process input error and interference to calculating.Therefore, through test, the reason of software own can take place the influence of server cpu load rate hardly.Also improved the operational reliability of system greatly.
In the OVATION system, defined four kinds of quality of data positions, comprised Bad, Poor, Fair, Good.Represent the problem that data exist respectively in the system handles process, when interrupting appears in communication, can show TIMEOUT.In OIS Real-Time Middleware software processes process, also can on the numerical value in the MS Excel instance, mark out its quality with different colours, be bad quality Bad like point with the redness mark.When a plurality of inputs have different state, calculate output and will mark the quality of minimum point and write mirror database.Like three inputs, one of them is Good, and another one is because excised scanning and become Poor at OVATION, and the 3rd point is because the out-of-limit Bad that placed of transmitter.The result of calculation of being accomplished by these three inputs will show Bad.
OIS user is can be as required newly-built in addition or open good one or more other boiler desulfurization denitrating system analysis of running performance MS Excel instances of configuration in advance, obtains comprehensive boiler desulfurization denitrating system running status and major pollutants controlling index.
Shown in accompanying drawing 3; Can also regularly copy in the portable hard drive through history data file in the present embodiment with the OVATION system; As server, can carry out off-line analysis to the data in the portable hard drive with a high-performance portable personal computer that MS Excel and OIS system software are installed by OIS software.
Claims (5)
1. the implementation method of a station boiler analysis of running performance system; It is characterized in that it comprises that one is equipped with in order to the commercial form software (1) of completion station boiler analysis of running performance function and the server (3) of Real-Time Middleware software (2); This server (3) can be realized data communication with historical data station (6) and man-machine interface station (7) in the monoblock scattered control system (5) through Real-Time Middleware software (2) and data transmission network (4), also can pass through data transmission network (4) simultaneously and realize data communication with client computer (8);
The implementation method of station boiler analysis of running performance function is: adopt the secondary development tool SDK of commercial form software (1) support and the Real-Time Middleware software (2) of general programming language VC++/VB programming realization can realize communicating by letter of/historical data base real-time with monoblock scattered control system (5), accomplish the collection and the processing of boiler operatiopn data; The mirror database (9) of management operating on server (3); Write the station boiler analysis of running performance from the commercial form software of trend (1) and calculate required boiler operatiopn data, and result of calculation is write mirror database (9);
Commercial form software (1) has the data I/O software interface with Real-Time Middleware software (2), and can import configuration, calculating and the analysis of accomplishing the station boiler runnability on the data basis at it, and it is specifically realized by following steps:
Step 1, the boiler operatiopn data acquisition and processing (DAP):
Real-Time Middleware software (2) obtains the real-time and historical data of boiler operatiopn periodically from the historical data station (6) of monoblock scattered control system (5); And these boiler operatiopn data are stored in the mirror database (9) of server (3) according to the system point identical with monoblock scattered control system (5) sign SID; This mirror database (9) is by Real-Time Middleware software (2) management, to realize the filing and the retrieval of boiler operatiopn data;
Except that the boiler operatiopn data that directly collect from monoblock scattered control system (5), mirror database (9) also stores the extension point information that is obtained by Real-Time Middleware software (2) computing;
Step 2, definition report data interface:
Definition has incoming page (10), calculates page or leaf (11), an output page (12) in commercial form software (1), and these pages or leaves all to have can be the not same page sign PID of Real-Time Middleware software (2) identification;
Wherein also define the data column or row (15) that sign column or row (14) arranged and be adjacent in each incoming page (10) at least; Each cell of data column or row (15) is corresponding one by one with the cell of sign column or row (14), constitutes one and can be Real-Time Middleware software (2) recognition data input block DB; Each cell in the sign column or row (14) all can be inserted the system point sign SID of boiler operatiopn data or the sign XID of extension point information; And can be by Real-Time Middleware software (2) according to sign SID of the system point in the sign column or row (14) or extension point message identification XID; In data column or row (15) cell of correspondence, regularly write completion station boiler analysis of running performance by refresh cycle Δ T and calculate required input data, the Refresh Data mode is preestablished by the configuration information (13) of Real-Time Middleware software (2);
Same definition has one sign column or row (17) and data column or row (18) that are adjacent in each output page (12), can insert numerical value, formula or the Cell Link that commercial form software (1) allows at the cell of data column or row (18); Real-Time Middleware software (2) can be through the system point sign SID that inserts in sign column or row (17) each cell, and the value of corresponding data column or row (18) cell is write in the mirror database (9), realizes the storage of analysis result;
Calculating page or leaf (11) can adopt the existing method of commercial form software (1) to realize the calculating of station boiler analysis of running performance function; And with cell data on-link mode (OLM) realization reading of data from data column or row (15) cell of incoming page (10) between the page or leaf of its standard; And result of calculation write in the cell of data column or row (18) of output page (12), realize that automatically synchronization of data refreshes;
Step 3, analytical calculation function configuration:
Calculate the configuration that the computing method that provide according to commercial form software (1) successively in the page or leaf (11) are accomplished the boiler performance analytic function at each; And boiler operatiopn data required in the configuration directly are linked as corresponding cells lattice in the data column or row (15), thereby make the boiler operatiopn data realization synchronous refresh that calculates configuration is good in the page or leaf (11) boiler performance analytic function and incoming page (10);
Each calculates any output unit lattice (16) that the boiler performance analysis result that needs output in the page or leaf (11) can be positioned over this page respectively; And in the data column or row (18) that calculate page or leaf (11), insert the link of output unit lattice (16), thereby realize calculating page or leaf (11) and output page (12) synchronization of data refreshes;
Step 4, station boiler analysis of running performance running software:
In commercial form software (1), open the station boiler analysis of running performance configuration file of accomplishing through step 1～step 3, and start the operation of Real-Time Middleware software (2);
Real-Time Middleware software (2) reads incoming page (10) and sign SID of the system point in the output page (12) and the extension point message identification XID that commercial form software (1) configuration is accomplished through page or leaf sign PID; And mate with system point sign SID in the mirror database, generate a data index;
Real-Time Middleware software (2) regularly writes the data column or row (15) corresponding with it with the boiler operatiopn data in the mirror database (9) by the definition that identifies column or row (14) in the incoming page (10) according to the refresh cycle Δ T of data directory and setting in configuration information (13); And, the value of its data column or row (18) is write synchronously the mirror database (9) of server (3) according to the definition that identifies column or row (17) in the output page (12);
Step 5, operation page protection and self diagnosis:
Real-Time Middleware software (2) run duration will lock incoming page (10), calculate the cell modify feature of page or leaf (11), output page (12); Except that accomplishing the data sync refresh function, Real-Time Middleware software (2) also will be accomplished its self diagnosis and adaptation function according to setting;
Step 6, results of performance analysis output shows:
Setting according to configuration information (13); Real-Time Middleware software (2) can be with the boiler operatiopn data and the performance evaluation function result of calculation of storage in the mirror database (9), sends to through data transmission network (4) in the man machine interface software of client computer (7) to show.
2. the implementation method of a kind of station boiler analysis of running performance as claimed in claim 1 system; It is characterized in that: the extension point information of mirror database (9) storage comprises aggregate-value, mean value, maximal value, minimum value, maximal value time of origin, minimum value time of origin, out-of-limit value, out-of-limit number of times, the out-of-limit duration of the at interval interior analog quantity of ∑ T reporting period, the accumulated running time of switching value equipment;
Extension point information is calculated according to its configuration information (13) by Real-Time Middleware software (2) and is got, and comprises the setting of ∑ T reporting period, counting period, extension point stored number in the configuration information (13);
In mirror database, extension point information adds that with the system point sign SID of boiler operatiopn data tagged word identifies as it, and promptly extension point message identification XID is expressed as:
XID＝SID+XX
Here XX is the combination of predefined two English alphabets and numeral, to distinguish different extension point information.
3. the implementation method of a kind of station boiler analysis of running performance as claimed in claim 1 system, it is characterized in that: the self diagnosis and the adaptation function of Real-Time Middleware software (2) are specifically realized by following steps;
(1) database SID verification: after Real-Time Middleware software (2) starts; Will be at first the system point sign SID of the boiler operatiopn data in the system point sign SID of definition in commercial form software (1) incoming page (10) and the output page (12) and the mirror database (9) that is stored in server (3) be carried out verification, and be given in the error message tabulation of non-existent system point sign SID in the mirror database (9);
(2) matching verification: Real-Time Middleware software (2) each refresh cycle before the data column or row (15) of incoming page (10) write data; All will mate verification to sign SID of the system point in the sign column or row (14) and extension point message identification XID; When its data directory of setting up when starting Real-Time Middleware software (2) there are differences; To stop to refresh of Real-Time Middleware software (2), and show the error message tabulation;
(3) point mass shows: Real-Time Middleware software (2) regularly, will be composed with special mark the data of abnomal condition according to the point mass position of the boiler operatiopn data of storage in the mirror database (9) when writing data to incoming page (10); Simultaneously; Its output result who participates in calculating is also remembered when writing mirror database (9) with corresponding point mass sign; When the required a plurality of boiler operatiopn data inputs of calculating have different point masses; Its correlation computations result will remember the minimum point quality with wherein when exporting mirror database (9) to, when Real-Time Middleware software (2) when normally stopping, will give " TIMEOUT " sign to the data point quality position that exports mirror database (9) to;
(4) automatic synchronizing function: Real-Time Middleware software (2) can be adjusted refresh cycle Δ T in real time according to the cpu load rate λ of server (3), when λ surpasses certain value, and will be according to λ numerical value automatically at refresh cycle initial value Δ T
0On the increment that adds up, thereby guarantee to calculate page data (11) refreshing and the input data hold time of the output of output page (12) and incoming page (10) synchronous, that is:
ΔT＝ΔT
0 λ＜x％ (0＜x＜100)
ΔT＝ΔT
0×(1+f(λ)) λ≥x％
4. the implementation method of a kind of station boiler analysis of running performance as claimed in claim 1 system; It is characterized in that: server (3) but the host in the historical data station (6) of monoblock scattered control system (5); Client computer (8) but the host in the man-machine interface station (7) of monoblock scattered control system (5); Data transmission network (4) is the real-time Communication for Power network (20) of monoblock scattered control system (5); Mirror database (9) is the real-time/historical data base of monoblock scattered control system (5), thereby the on-line optimization of realizing the station boiler runnability instructs.
5. the implementation method of a kind of station boiler analysis of running performance as claimed in claim 1 system; It is characterized in that: server (3) is regularly through data transmission network (4) copy boiler operatiopn data and after being stored in mirror database (9); Can need not data transmission network (4) and monoblock scattered control system (5) independent operating, and realize the off-line analysis of station boiler runnability through mirror database (9).
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