CN102213950A - Implementation method for self-starting and stopping control system of machine set - Google Patents
Implementation method for self-starting and stopping control system of machine set Download PDFInfo
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- CN102213950A CN102213950A CN 201110125758 CN201110125758A CN102213950A CN 102213950 A CN102213950 A CN 102213950A CN 201110125758 CN201110125758 CN 201110125758 CN 201110125758 A CN201110125758 A CN 201110125758A CN 102213950 A CN102213950 A CN 102213950A
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Abstract
The invention provides an implementation method for a self-starting and stopping control system of a machine set, and the method is characterized by comprising the following steps: firstly, receiving starting signals or stopping signals through the function set which is positioned at a first layer; then, sequentially judging whether the permissive conditions of the starting are met or not or the permissive conditions of the stopping are met or not, whether initialization signals exist or not, whether interruption signals exist and whether feedback signals exist; and then, starting to implement a breakpoint layer which is positioned at a second layer, wherein the implementation command of the second layer is the same as that of the first layer. Compared with the existing method, the method provided by the invention has the following advantages: 1, the dependence on the driving stage of equipment can be greatly reduced, and the debugging efficiency is enhanced; 2, the modification flexibility of a function set is increased; and 3, the implementation method provided by the invention is also suitable for a commissioning machine set.
Description
Technical field
The present invention relates to the collecting and distributing control technology of a kind of fired power generating unit, relate in particular to the programming implementation method of a kind of unit from the start and stop control system.
Background technology
It is divided into several breakpoints (function group) with unit starting process and de-activation procedure and finishes unit starting or inactive whole process automatically unit from start and stop control system (Automatic Plant Startup and Shutdown System, be called for short APS).It can prevent to greatest extent that not only the people from being maloperation, improve correctness, standardization, the high efficiency of unit operation greatly, and can alleviate operations staff's working strength greatly, and shorten the time of unit start and stop control, improve the automatization level of unit on the whole.At present China is owing to reasons such as the reliability of thermal control equipment and automatic control levels, and domestic APS also is in the research trial run stage, and its design, implementation method are one of focuses of recent thermal technology's Control Study.APS function group The whole control structure is divided into three layers, is followed successively by APS activation/deactivation function group, breakpoint, device control layer from top to bottom.In Distributed Control System (DCS) (being called for short DCS) design in the past, the realization of APS function need increase configuration, and its control structure as shown in Figure 1.APS starts or the disable function group sends instructions to breakpoint, breakpoint by sending instructions calls other merit device drives and finishes.Solid line among the figure is represented the method that configuration realizes, i.e. the essential configuration recalls information that increases breakpoint in the equipment; Breakpoint need increase the configuration info of function group.There was following shortcoming in implementation method in the past:
1, require the design phase to finish perfect APS design.The realization of APS need send instructions from top to bottom from function group, breakpoint, device level and realize to bottom device drives level.If the design imperfection is revised content and related to function group, breakpoint, device level various piece, revise length consuming time, workload is huge.And the design of domestic DCS steering logic is all taken into account by configuration producer and finishes, the construction of DCS system is just carried out after the 5th batch of electric power factory equipment purchase bidding usually, this means determining from the DCS instrument, through the I/O inventory determine, I/O has assigned, steering logic designs, control configuration is accomplished to system and dispatches from the factory, and generally has only half a year～one's year left and right sides time.The design of steering logic and definite also with regard to about 1～2 month, the way of this routine is difficult to the design effort of the huge APS system of the amount of finishing the work.This also is one of present domestic APS reason of being difficult to realize.
2, increase the workload of debugging.According to the order of thermal control debugging work, debugging through debugging breakpoints, is finished APS layer function group from the underlying device driving stage at last.Configuration implementation method in the past can cause debugging work to repeat, and increases debugging work load.Promptly when APS function group is debugged, revise the merit breakpoint that direct influence debugged or the modification of device drives level logic, cause the debugging that repeats of this part work, increase the debugging workload in period greatly.This duration of a project for domestic fired power generating unit anxiety makes the matter worse beyond doubt.This also is to hinder one of key factor that APS realizes in the DCS system at home.
3, the function group is revised inconvenient.Because the function group is made up of a series of sequenced step instructions, if need to add a step, subsequent breakpoint or equipment group step instruction configuration all need be delayed a step, very dumb.
4, be unfavorable for the putting into operation APS function modifications of unit.For the unit that has put into operation, driving stage and partial function group have been debugged and have been come into operation, increase the APS function by previous methods, need to revise the logic that existing all devices drives, increase the work of configuration and debugging greatly, add the limited unit maintenance time, the APS control of the unit of make realizing putting into operation becomes impossible.
Summary of the invention
The purpose of this invention is to provide a kind of dependence that significantly reduces the device drives level, improve the dirigibility that the function group is revised, simultaneously, be applicable to the implementation method of the unit of the unit that puts into operation from the start and stop control system.
In order to achieve the above object, technical scheme of the present invention has provided the implementation method of a kind of unit from the start and stop control system, by the APS program control center, control procedure according to power plant, simultaneously to the judgement of power plant's operational factor, allow the equipment of original dispersion obtain organically unified, reach the purpose of unit from start and stop, wherein, the APS program control center is made up of very many logic determines bodies, each logic determines body is finished single task role, by the result of APS program control center according to logic determines body set, again according to the judgement of procedure parameter, get through or off device between the path, reach the purpose of unit from start and stop, it is characterized in that: each described logic determines body may further comprise the steps:
Step 1, reception enabled instruction
The enabled condition that step 2, judgement start if satisfy then execution in step 3, does not satisfy and then returns step 1;
Step 4, judged whether look-at-me, if having then wait in position up to this look-at-me and disappearing, execution in step 5 then not;
Step 5, judge whether the feedback signal that slave unit receives meets the demands, if meet the demands then skips steps 6 execution in step 7, if do not satisfy then execution in step 6;
The instruction of step 6, the operation of execution relevant device starts corresponding apparatus, and provides feedback signal;
Step 7, timing, if in official hour, receive the feedback signal that meets the demands then enter next breakpoint or next from start and stop control system activation/deactivation function group and repeat above each step, do not receive satisfied feedback require then to carry out the newspaper fault and etc. pending.
Method of the present invention and previous methods relatively have following advantage: 1, can significantly reduce the dependence to the device drives level, improve debugging efficiency.The invention enables the work of first, second and third layer in the APS structure separate, can progressively realize the APS function according to the length of debug time.Finish three-layer equipment level control back operator during debugging and just can finish unit operation with manual manipulation mode, during debugging second layer breakpoint with three-layer equipment level control independence fully, adopt programming mode directly on original operator's interface operable, to send instructions to finish device control because be, so the modification that relates to during second layer debugging only limits in second layer program, bring very big convenience for debugging work.Even can disperse the second layer and ground floor debugging work according to system's significance level and debugging duration, can progressively realize the APS function.
2, increased the dirigibility that the function group is revised.Because the realization of the second layer breakpoint and the first function group all adopts programming mode to finish, the modification of middle any one function group only needs update routine just can finish, to increase single stepping very inconvenient in the past, need revise subsequent instructions successively, this method only needs to insert a step process program and can realize in program.
3, the present invention is suitable for the unit that puts into operation equally.The present invention realizes that the APS function need not revise original device level of having debugged and drive, as long as increase second layer breakpoint and ground floor APS function group layer just can be realized on this basis, this realizes the APS function for the unit that puts into operation, and a kind of effective method that provides of thermal control automatization level is provided.
Description of drawings
Fig. 1 is the APS hierarchical chart;
Fig. 2 is the control structure of APS realization in the past;
Fig. 3 is the control structure that the programming adopted of the present invention realizes the APS function;
Fig. 4 is breakpoint (function group) the programming block diagram that the present invention adopts;
Embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment
The method that the invention provides with programming realizes the APS function.Concrete scheme is as follows: the 3rd layer of original APS is on the suitable basis of control function group of device drives level or part, does not change the 3rd layer of configuration content, realizes the function of second layer breakpoint layer and ground floor APS function group with the method for programming.
As shown in Figure 3, the content of invention is the APS program control center in the frame, for programming realizes, does not need to increase actual configuration, directly replaces the operator to send instructions with program and finishes function.The method that the ground floor and the second layer are realized among Fig. 1 is similar, the object difference of just calling.
A kind of unit provided by the invention is from the implementation method of start and stop control system, by the APS program control center, according to the control procedure of power plant, simultaneously to the judgement of power plant's operational factor, allow the equipment of original dispersion obtain organically unifying, reach the purpose of unit from start and stop:
1. the APS program control center is made up of very many logic determines bodies, and each logic determines body is finished single task role.
2. be example with first breakpoint in the unit self-triggered program (having 6 breakpoints), each following exemplary step all has one or more logic determines bodies, in conjunction with Fig. 4, the steps include:
Step 1, reception enabled instruction
Step 2.1, open A/B condenser access doors, close A/B condenser outlet portal, close the open circulation access doors, close the open circulation outlet portal;
Step 2.2, open A/B condenser outlet portal 8%;
Step 2.3, throwing follow pump A along control;
Step 2.4, throwing open circulation water system are opened A/B condenser outlet portal 35%;
Step 2.5, throwing follow pump B along control;
Step 2.6, open the outlet of sufficient A/B condenser;
Step 2.7, throwing hydroecium vacuum pump system;
Step 2.8, throwing closed circle water system;
Step 2.9, open closed cold pump along the control;
Step 2.10, throw interlocking switch after prolonging 60S;
Step 4, electric dust removing system start;
Step 5, low-temperature heater system start-up;
Step 5.1, #7 and #8 low-temperature heater open in advance;
Step 5.2, #6 low-temperature heater open in advance;
Step 5.1, #5 low-temperature heater open in advance;
Step 6, hydrophobic group of startup of steam turbine
Step 6.1, open hydrophobic group of backstage of cylinder body and provide for oneself;
Provide for oneself on step 6.2, hydrophobic group of backstage, open pipe road;
Step 6.3, open the hydrophobic group of backstage of drawing gas and provide for oneself;
Step 7, water group startup with fixed attention
Step 7.1, open small pump along the control;
Step 7.2, throwing condenser extra feed tank water level transfer valve automatic;
Step 7.3, drive condenser minimum flow variable valve 100%;
Step 7.4, the suitable control of pump with fixed attention;
Step 7.5, throw interlocking switch after prolonging 60S;
Step 8, steam turbine oil system start-up
Step 8.1, startup steam turbine AC Lub oil pump;
Step 8.2, startup steam turbine grease-box induced-draft fan A/B;
Step 8.3, startup hydrogen-tight oil stand-by pump;
Step 8.4, startup EH oil pump;
Step 8.5, startup jacking(oil) pump;
Step 8.6, startup steam feed pump A main oil pump
Step 8.7, startup steam feed pump A oil extraction blower fan
Step 8.8, startup steam feed pump B main oil pump
Step 8.9, startup steam feed pump B main oil pump
Step 8.10, prolong to throw behind the 60S and be equipped with interlocking switch mutually
Step 9, generator utility appliance group start
Step 9.1, starter-generator stator cooling-water pump are thrown water tank moisturizing interlocking switch;
Step 9.2, the empty top-cross stream of starter-generator sealing oil pump;
Step 9.3, starter-generator hydrogen-side seal oil pump;
Step 9.4, the empty side oil return leakproof fuel cell induced-draft fan of startup;
Step 9.5, startup hydrogen system circulating fan;
Step 9.6, prolong to throw behind the 60S and be equipped with interlocking switch mutually;
Step 10, steam turbine jiggering group start
Step 10.1, the Turbine Barring Gears that starts;
Step 10.2, startup steam feed pump A cranking system;
Step 10.3, startup steam feed pump B cranking system;
Hydrophobic group of step 11, boiler
Step 11.1, the hydrophobic platform behind the door of throwing back cigarette well are provided for oneself;
Step 10.2, the hydrophobic platform behind the door of throwing reheater are provided for oneself;
Step 10.3, throwing boiler steam bleeding platform are behind the door provided for oneself;
Provide for oneself on step 10.4, throwing superheater PCV valve backstage;
3. the APS program control center is according to the result of logic determines body set, again according to the judgement of procedure parameter, by it self interface section, get through or off device between the path, reach the purpose of unit from start and stop.
Claims (1)
1. a unit is from the implementation method of start and stop control system, by the APS program control center, control procedure according to power plant, simultaneously to the judgement of power plant's operational factor, allow the equipment of original dispersion obtain organically unified, reach the purpose of unit from start and stop, wherein, the APS program control center is made up of very many logic determines bodies, and each logic determines body is finished single task role, by the result of APS program control center according to the set of logic determines body, again according to the judgement of procedure parameter, get through or off device between the path, reach the purpose of unit from start and stop, it is characterized in that: each described logic determines body may further comprise the steps:
Step 1, reception enabled instruction
The enabled condition that step 2, judgement start if satisfy then execution in step 3, does not satisfy and then returns step 1;
Step 3, judged whether initializing signal, if having then return step 1, execution in step 4 then not;
Step 4, judged whether look-at-me, if having then wait in position up to this look-at-me and disappearing, execution in step 5 then not;
Step 5, judge whether the feedback signal that slave unit receives meets the demands, if meet the demands then skips steps 6 execution in step 7, if do not satisfy then execution in step 6;
The instruction of step 6, the operation of execution relevant device starts corresponding apparatus, and provides feedback signal;
Step 7, timing, if in official hour, receive the feedback signal that meets the demands then enter next breakpoint or next from start and stop control system activation/deactivation function group and repeat above each step, do not receive satisfied feedback require then to carry out the newspaper fault and etc. pending.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681520A (en) * | 2012-06-04 | 2012-09-19 | 上海迪吉特控制系统有限公司 | Implementation method of operation interface of automatic plant start-up &and shut-down system |
| CN103165207A (en) * | 2011-12-13 | 2013-06-19 | 中广核工程有限公司 | Sequential control method and system suitable for nuclear power station |
| CN103439932A (en) * | 2013-08-12 | 2013-12-11 | 国家电网公司 | Method for increasing and decreasing breaking points in operation of automatic starting and stopping control system of thermal power generating unit |
| CN103472816A (en) * | 2013-08-29 | 2013-12-25 | 国家电网公司 | Automatic start-stop detection method and system applied to oil system |
| CN103616854A (en) * | 2013-10-24 | 2014-03-05 | 上海迪吉特控制系统有限公司 | A method for implementing hierarchical optimization of automatic plant start-up and shut-down control logic |
| CN103823401A (en) * | 2014-03-05 | 2014-05-28 | 中国神华能源股份有限公司 | Method and device for giving alarm in unit-level self start-stop control system |
| CN103823395A (en) * | 2014-03-05 | 2014-05-28 | 中国神华能源股份有限公司 | Method and device for controlling breakpoint resume of set-grade automatic starting and stopping system |
| CN104597898A (en) * | 2015-02-03 | 2015-05-06 | 国家电网公司 | Method of automatically eliminating faults by sequence control system of thermal power generating unit |
| CN105676801A (en) * | 2014-11-20 | 2016-06-15 | 国家电网公司 | Automatic plant startup and shutdown system |
| CN107315405A (en) * | 2017-08-28 | 2017-11-03 | 山东中实易通集团有限公司 | A kind of unit booting-self controller process remote diagnosis system and method based on internet |
| CN107976980A (en) * | 2017-11-25 | 2018-05-01 | 国网辽宁省电力有限公司电力科学研究院 | Large-scale phase modifier DCS controls start ＆ shutdown through one key system and method |
| CN108490906A (en) * | 2017-05-12 | 2018-09-04 | 国电龙源电力技术工程有限责任公司 | DCS controls fired power generating unit is improved to the design method having completely from start-stop function |
| CN108873841A (en) * | 2018-06-29 | 2018-11-23 | 中国神华能源股份有限公司 | Control system, the method and apparatus of Unit Commitment |
| CN110593974A (en) * | 2019-10-31 | 2019-12-20 | 大唐郓城发电有限公司 | Automatic start-stop control system of unit |
| CN113202737A (en) * | 2021-05-24 | 2021-08-03 | 中核核电运行管理有限公司 | Start-stop control circuit and method for top shaft oil pump of steam turbine of nuclear power plant |
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| CN103165207A (en) * | 2011-12-13 | 2013-06-19 | 中广核工程有限公司 | Sequential control method and system suitable for nuclear power station |
| CN102681520A (en) * | 2012-06-04 | 2012-09-19 | 上海迪吉特控制系统有限公司 | Implementation method of operation interface of automatic plant start-up &and shut-down system |
| CN102681520B (en) * | 2012-06-04 | 2014-07-09 | 上海迪吉特控制系统有限公司 | Implementation method of operation interface of automatic plant start-up &and shut-down system |
| CN103439932A (en) * | 2013-08-12 | 2013-12-11 | 国家电网公司 | Method for increasing and decreasing breaking points in operation of automatic starting and stopping control system of thermal power generating unit |
| CN103439932B (en) * | 2013-08-12 | 2015-09-23 | 国家电网公司 | Fired power generating unit automatic start-stop control system increases and decreases the method for breakpoint in running |
| CN103472816A (en) * | 2013-08-29 | 2013-12-25 | 国家电网公司 | Automatic start-stop detection method and system applied to oil system |
| CN103472816B (en) * | 2013-08-29 | 2016-02-17 | 国家电网公司 | A kind of automatic start-stop detection method and system being applied to oil system |
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| CN103823395A (en) * | 2014-03-05 | 2014-05-28 | 中国神华能源股份有限公司 | Method and device for controlling breakpoint resume of set-grade automatic starting and stopping system |
| CN103823401A (en) * | 2014-03-05 | 2014-05-28 | 中国神华能源股份有限公司 | Method and device for giving alarm in unit-level self start-stop control system |
| CN103823401B (en) * | 2014-03-05 | 2016-08-10 | 中国神华能源股份有限公司 | For the method and apparatus reported to the police in start-stop control system in unit level |
| CN105676801A (en) * | 2014-11-20 | 2016-06-15 | 国家电网公司 | Automatic plant startup and shutdown system |
| CN105676801B (en) * | 2014-11-20 | 2019-04-05 | 国家电网公司 | Unit is from start-stop control system |
| CN104597898A (en) * | 2015-02-03 | 2015-05-06 | 国家电网公司 | Method of automatically eliminating faults by sequence control system of thermal power generating unit |
| CN108490906A (en) * | 2017-05-12 | 2018-09-04 | 国电龙源电力技术工程有限责任公司 | DCS controls fired power generating unit is improved to the design method having completely from start-stop function |
| CN108490906B (en) * | 2017-05-12 | 2020-10-02 | 国电龙源电力技术工程有限责任公司 | Design method for improving DCS (distributed control System) control thermal power generating unit to have complete automatic start-stop function |
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| CN107315405B (en) * | 2017-08-28 | 2023-12-12 | 山东中实易通集团有限公司 | Internet-based remote diagnosis system and method for unit self-starting control process |
| CN107976980A (en) * | 2017-11-25 | 2018-05-01 | 国网辽宁省电力有限公司电力科学研究院 | Large-scale phase modifier DCS controls start ＆ shutdown through one key system and method |
| CN108873841A (en) * | 2018-06-29 | 2018-11-23 | 中国神华能源股份有限公司 | Control system, the method and apparatus of Unit Commitment |
| CN110593974A (en) * | 2019-10-31 | 2019-12-20 | 大唐郓城发电有限公司 | Automatic start-stop control system of unit |
| CN113202737A (en) * | 2021-05-24 | 2021-08-03 | 中核核电运行管理有限公司 | Start-stop control circuit and method for top shaft oil pump of steam turbine of nuclear power plant |
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