CN202032549U - Header pressure coordination control system for thermal power plant boiler - Google Patents
Header pressure coordination control system for thermal power plant boiler Download PDFInfo
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- CN202032549U CN202032549U CN2011200955705U CN201120095570U CN202032549U CN 202032549 U CN202032549 U CN 202032549U CN 2011200955705 U CN2011200955705 U CN 2011200955705U CN 201120095570 U CN201120095570 U CN 201120095570U CN 202032549 U CN202032549 U CN 202032549U
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Abstract
The utility model relates to a header pressure coordination control system for a thermal power plant boiler, which comprises a main steam pressure controller, a fuel quantity controller, a steam drum pressure feed-forward control loop and a main steam flow rate feed-forward control loop, and is characterized by also comprising a header pressure coordination and strategy controller, wherein the output of the header pressure coordination and strategy controller is respectively connected with the constant value input end of the main steam pressure controller and the switching end of the fuel quantity controller, the fuel quantity controller comprises internal controllers C1, C2, C3 and C4, coordinates and determines the input value of the switching end of the fuel quantity controller according to the header pressure, different controllers arranged inside the fuel quantity controller are invoked for carrying out the fuel quantity regulation control operation, and then, the result is output to a boiler powder supply system to be used as combustion control signals. The header pressure coordination control system realizes the coordination control and the distribution regulation of the load of the steam header system parallel operation boiler and the fully automatic control under the heavy-load disturbance, and can be applicable to a header system pulverized coal coiler system adopting the distribution control system (DCS) control.
Description
Technical field
The utility model relates to steam power plant's coal-burning boiler control system, especially relates to a kind of thermal power plant boiler main-piping pressure coordinated control system that adopts the piping-main scheme method of operation.
Background technology
At present, in industries such as the self-contained thermoelectric plant (taking into account generating, production heat supply) of industries such as China's oil, chemical industry, metallurgy, papermaking, coal, pharmacy and central heating, extensively adopt many boiler paired runnings, simultaneously to the female pipe of same steam steam supply, to satisfy the piping-main scheme method of operation of generating and heat supply network workload demand.When generating set adopts the piping-main scheme operating scheme, boiler is with steam turbine and supply the temperature-decreased pressure reducer heat network system all directly to link to each other with the female pipe of steam outward, boiler plant for parallel running, the steam that all boilers produce all enters the female pipe of main steam, meanwhile, steam turbine admission and other outer heating demand are also all from the female pipe of main steam.Therefore, the control of boiler load under the piping-main scheme method of operation its essence is by the adjusting to each boiler oil amount, controls the boiler capacity that this stove load promptly enters the female pipe of main steam, finally to stablize the main steam main-piping pressure.
Traditional coal-burning boiler main-piping pressure-give powder regulating system design for scheme is for being correction regulator with the main-piping pressure, constitute load definite value distribution-cascade control system with the fuel quantity instant heating load controller of each pressure regulation stove, the main-piping pressure adjuster is according to the deviate of main-piping pressure, thermic load is required to distribute to each pressure regulation stove, the heat load adjustment device of main-piping pressure adjuster and each pressure regulation stove all adopts conventional PID controller, but because one be that main-piping pressure signal time lag is big: the boiler of paired running is many more, main-piping pressure signal time lag is big more, and the boiler pressure coupling phenomenon of paired running is serious, fast the variation of follow load; The 2nd, the heat signal of boiler is difficult to accurately adjust: lack good measurement means owing to enter the coal dust amount of every boiler furnace, usually with the indirect reflection of heat signal as the coal dust amount, but heat storage coefficient is difficult to adjust in actual applications, cause in debugging control system can not correctly distinguish inside and outside disturbance, therefore, above-mentioned existing scheme is difficult to obtain good result.
On the other hand, for piping-main scheme operation unit, when big load disturbance takes place, can't realize " boiler-turbine coordinated control " that monoblock adopts, and on-the-spot actual motion requires the load of boiler to follow the tracks of the sudden change of Steam Turbine load or outer net load fast, cause situations such as outer sudden load change because of the quick removal of load of failure and other reasons and outer net with thermic devices disastershutdown etc. such as steam turbine, and its governing speed of control scheme of prior art is difficult to catch up with significantly external disturbance, finally cause fluctuating widely of main steam main-piping pressure parameter, cause on a large scale economical operation performance decrease at the net generating set.
For solving an above-mentioned difficult problem, this control system is at conventional coal-burning boiler main-piping pressure/the give deficiency in the powder regulating system scheme, development has proposed the quick switching+feedforward of machine supplying powder+feedback load control coordination strategy, utilize main-piping pressure to change on the one hand and proofread and correct each stove main steam pressure control device definite value, thereby realize that piping-main scheme method of operation boiler changes adjustment automatically according to main-piping pressure and coordinates every boiler load; Simultaneously, utilize few, the fireballing characteristics of FEEDFORWARD CONTROL link, when being implemented in the quick removal of load of Steam Turbine, the decline suddenly of outer net load, quick adjustment boiler machine supplying powder, reduce fuel quantity rapidly, the speed that the control main vapour pressure rises, thus realize the stable of main-piping pressure or reduce its fluctuating range.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the load phase mutual interference between the piping-main scheme parallel boiler, main-piping pressure signal time lag is big, every boiler is the characteristics that change of follow load fast, provide a kind of follow load fast to change, starting different control strategies according to internal disturbance or external disturbance can rapid-action boiler main-piping pressure coordinated control system when externally disturbance takes place suddenly simultaneously.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of thermal power plant boiler main-piping pressure coordinated control system comprises:
The secondary control of main steam pressure main control loop and fuel quantity loop, wherein said main steam pressure main control loop comprises main steam pressure signal acquisition module and main steam pressure control device, the secondary control of described fuel quantity loop comprises main steam flow signal acquisition module and fuel quantity controller, the output of described main steam pressure signal acquisition module is connected with the input of main steam pressure control device, the output of described main steam flow signal acquisition module is connected with the input of fuel quantity controller, the definite value input of the output of described main steam pressure control device and fuel quantity controller is connected, and the output of described fuel quantity controller is connected to powder system with boiler;
In addition, also comprise a drum pressure FEEDFORWARD CONTROL loop and a main steam flow FEEDFORWARD CONTROL loop, wherein said drum pressure FEEDFORWARD CONTROL loop comprises drum pressure signal acquisition module and drum pressure feed-forward signal computing module, the output of described drum pressure signal acquisition module is connected with the input of drum pressure feed-forward signal computing module, and the output of drum pressure feed-forward signal computing module is connected with the input of fuel quantity controller; Described main steam flow FEEDFORWARD CONTROL loop comprises main steam flow signal acquisition module and main steam flow feed-forward signal computing module, the output of described main steam flow signal acquisition module is connected with the input of main steam flow feed-forward signal computing module, and the output of main steam flow feed-forward signal computing module is connected with the input of fuel quantity controller;
Further, also comprise a main-piping pressure coordination control loop, it is characterized in that:
Described main-piping pressure is coordinated control loop and is comprised that main-piping pressure signal acquisition module and a main-piping pressure coordinate and strategy controller, the output of described main-piping pressure signal acquisition module and aforementioned main steam pressure signal acquisition module, main steam flow signal acquisition module inserts this main-piping pressure simultaneously and coordinates and strategy controller, described main-piping pressure is coordinated and one of them output of strategy controller is connected with the definite value input of main steam pressure control device, and another output connects with the switch terminal of fuel quantity controller;
Described fuel quantity controller comprises internal controller C1, internal controller C2, internal controller C3 and internal controller C4, input is connected with C4 with internal controller C1, C2, C3 simultaneously in the output of wherein said main steam flow signal acquisition module, the output of drum pressure feed-forward signal computing module is connected with internal controller C2 input, and input is connected with the internal controller C3 of fuel quantity controller in the output of main steam flow feed-forward signal computing module.
Preferably, internal controller C1 described in the described thermal power plant boiler main-piping pressure coordinated control system in the fuel quantity controller selects logic judgment module for use, C2 selects the big damping PI control module of band feedforward for use, C3 selects the quick PI control module of band feedforward for use, and C4 selects the quick PI control module of not being with feedforward for use.
The beneficial effects of the utility model are:
1, by in control loop, introducing main steam flow amount FEEDFORWARD CONTROL, realized that the machine supplying powder system can follow the tracks of the variation of boiler load fast.
2, by introducing the drum pressure FEEDFORWARD CONTROL, can avoid boiler to give the wide fluctuations of powder system machine supplying powder rotating speed.
3, control procedure is by distinguishing the residing state-stable state of combustion system or dynamic, the dynamic process that internal disturbance and external disturbance cause is selected for use different controllers respectively, guaranteed that boiler all can reach good control index to the powder control loop under stable state, current intelligence.
4, when the quick removal of load of generating set, employing has the controller C1 of machine supplying powder automatic switching function, speed according to the main vapour pressure rising, suddenly stop 1-2 platform machine supplying powder, fuel quantity is descended rapidly, the ability that possesses the fast and stable main vapour pressure, thus realize the stable of main-piping pressure or reduce its fluctuating range.
Description of drawings
The following drawings only is embodiment more of the present utility model, just to being illustrated more clearly in the technical solution of the utility model, also can not need to pay performing creative labour for those of ordinary skills can obtain other similar accompanying drawings according to these accompanying drawings.
Fig. 1 is the control system structured flowchart of the utility model embodiment 1;
Fig. 2 is the workflow diagram of the utility model embodiment 1.
The specific embodiment
By making the utility model embodiment be wanted technical solution problem and feature and effect thereof to become apparent more, the utility model embodiment is described in further detail below in conjunction with the drawings and specific embodiments.
Present embodiment is utilized the inside at steam piping-main scheme method of operation boiler DCS, call its internal control module configuration of programming and realize that many stoves coordinate control sharing of loads and coordination strategy control function, the control boiler is given the machine supplying powder frequency converter of powder system, and system architecture is simple, and cost is low.
With reference to figure 1, realize the thermal power plant boiler main-piping pressure coordinated control system that the utility model embodiment 1 is provided, comprising:
The secondary control of main steam pressure main control loop and fuel quantity loop, wherein said main steam pressure main control loop comprises main steam pressure signal acquisition module and main steam pressure control device, the secondary control of described fuel quantity loop comprises main steam flow signal acquisition module and fuel quantity controller, the output of described main steam pressure signal acquisition module is connected with the input of main steam pressure control device, the output of described main steam flow signal acquisition module is connected with the input of fuel quantity controller, the definite value input of the output of described main steam pressure control device and fuel quantity controller is connected, and the output of described fuel quantity controller is connected to powder system with boiler;
In addition, also comprise a drum pressure FEEDFORWARD CONTROL loop and a main steam flow FEEDFORWARD CONTROL loop, wherein said drum pressure FEEDFORWARD CONTROL loop comprises drum pressure signal acquisition module and drum pressure feed-forward signal computing module, the output of described drum pressure signal acquisition module is connected with the input of drum pressure feed-forward signal computing module, and the output of drum pressure feed-forward signal computing module is connected with the input of fuel quantity controller; Described main steam flow FEEDFORWARD CONTROL loop comprises main steam flow signal acquisition module and main steam flow feed-forward signal computing module, the output of described main steam flow signal acquisition module is connected with the input of main steam flow feed-forward signal computing module, and the output of main steam flow feed-forward signal computing module is connected with the input of fuel quantity controller;
Further, also comprise a main-piping pressure coordination control loop, comprising:
Main-piping pressure signal acquisition module and a main-piping pressure are coordinated and strategy controller, the output of described main-piping pressure signal acquisition module and aforementioned main steam pressure signal acquisition module, main steam flow signal acquisition module inserts this coordination and strategy controller simultaneously, described main-piping pressure is coordinated and one of them output of strategy controller is connected with the definite value input of main steam pressure control device, and another output connects with the switch terminal of fuel quantity controller;
Described fuel quantity controller comprises internal controller C1, internal controller C2, internal controller C3 and internal controller C4, input is connected with C4 with internal controller C1, C2, C3 simultaneously in the output of wherein said main steam flow signal acquisition module, the output of drum pressure feed-forward signal computing module is connected with internal controller C2 input, and input is connected with the internal controller C3 of fuel quantity controller in the output of main steam flow feed-forward signal computing module.
Signal described in the system obtains and can adopt UP or flow transmitter, signal acquisition module can adopt the input I/O fastener of DCS system, described coordination and strategy controller, fuel quantity controller adopt DCS control system logic built computing module and PID adjustment module, and described main steam pressure control device adopts DCS control system internal PID adjustment module.
Particularly, internal controller C1 described in the described thermal power plant boiler main-piping pressure coordinated control system in the fuel quantity controller selects logic judgment module for use, C2 selects the big damping PI control module of band feedforward for use, C3 selects the quick PI control module of band feedforward for use, and C4 selects the quick PI control module of not being with feedforward for use.
The computing of DCS control system internal PID is adopted in described control computing, requires the difference between process measurements and the setting value is carried out PID PID computing according to control object technology controlling and process, determines to regulate forward or backwards; Built-in the differentiating of DCS control system adopted in described feedforward computing.
Main-piping pressure of the present utility model coordinate and strategy controller by the deviation of input main-piping pressure signal and main steam pressure signal being carried out be multiplied by after the PID computing the most reasonable sharing of load coefficient for every boiler, the sharing of load of every boiler is set and is delivered to the definite value end of main steam pressure.Simultaneously, main-piping pressure coordination and strategy controller are by judging input main steam flow signal, and to the deviation of main-piping pressure signal and main steam pressure signal compare judge with logic after, the switch terminal of fuel quantity controller is delivered in output, realization is according to the strong and weak judgement of disturbance type and disturbance inside and outside equipment operating condition automatic distinguishing flameholding state, select for use respectively and switch internal controller C1, C2, C3 or C4 different in the fuel quantity controller, carry out the control of various control means and carry out corresponding control strategies.
Setting for the most reasonable sharing of load coefficient of every boiler is by control performance and equipment on-load ability test that every boiler is burnt, comprehensively determine with reference to operations staffs' such as stoker long period of operation experience simultaneously, but the stoker carries out keyboard to set up according to coal-fired ature of coal and the also reasonably optimizing modification of working conditions change situation by DCS system configuration monitored picture.
With reference to figure 2, realize that the workflow of the utility model embodiment 1 may further comprise the steps:
Step 10: obtain main-piping pressure signal, main steam pressure signal, main steam flow signal and drum pressure signal;
Step 20: main-piping pressure signal, main steam pressure signal and main steam flow signal are sent into main-piping pressure coordinate and strategy controller;
Step 21: the switch terminal that exports fuel-control unit after the calling logic judge module carries out logical operation in main-piping pressure coordination and strategy controller to.Wherein the selection rule of different internal controller C1, C2, C3, C4 is as follows in the fuel quantity controller:
C1: if the quick removal of load of steam turbine, its main steam flow signal is undergone mutation, and then switches and calls the controller C1 with machine supplying powder automatic switching function; Promptly when the quick removal of load of steam turbine, the decline suddenly of outer net load, regulating system is according to the size of load variations, the speed that main vapour pressure rises, suddenly stop 1-2 platform machine supplying powder, fuel quantity is descended rapidly, stablized the rotating speed of other machine supplying powder, all machine supplying powder rotating speeds of reason do not descend fast and cause fire extinguishing.The switching logic of machine supplying powder is finished in control program automatically.
C2: if main-piping pressure/main vapour pressure deviation, then adopts the PID controller C2 with big damping and drum pressure feedforward less than predefined threshold value; Therefore system mode is near stable state the time, this moment major concern degree of regulation problem, so the controller that adopts the big damping wide fluctuations of machine supplying powder rotating speed in order to reduce simultaneously near stable state, so the introducing drum pressure feedovers;
C3: if main-piping pressure/main vapour pressure deviation is greater than predefined threshold value, and two load increment and the machine supplying powder incremental speed jack per lines between constantly of sampling be change direction in the same way, then adopt to have the fast PID controller C3 that main steam flow feedovers; Because this moment, system mode was in the transient process, and the interference that system is subjected to is outer disturbance (as load variations), so adopt quick PI control, the while has been introduced primary air amount FEEDFORWARD CONTROL for the influence of offsetting outer disturbance;
C4: if main-piping pressure/main vapour pressure deviation is greater than predefined threshold value, and two load increment and the machine supplying powder incremental speed contrary signs between constantly of sampling promptly change in the opposite direction, and then adopt and do not have quick PI (proportional integral) the controller C4 that feedovers; Because this moment, system mode was in the transient process, and the interference that is subjected to of system is interior disturbance (changing as ature of coal), thus adopt quick PI to control, and need not add FEEDFORWARD CONTROL under the interior disturbance situation.
Step 22: set main-piping pressure control definite value, the difference of main-piping pressure signal and main-piping pressure control definite value is carried out exporting the definite value of main steam pressure control device as boiler main steam pressure control to after main-piping pressure is regulated the control computing and be multiply by the boiler load distribution coefficient that presets;
Step 30: the main steam pressure signal is sent into the main steam pressure control device, the difference of main steam pressure signal and main steam pressure control definite value is carried out exporting the definite value that the fuel quantity controller amount of acting as a fuel is controlled to after the main steam pressure control computing;
Step 40: the drum pressure signal is sent into drum pressure feed-forward signal computing module, carry out exporting to after the drum pressure feedforward computing internal controller C2 of fuel quantity controller;
Step 50: the main steam flow signal is sent into main steam flow signal feedforward computing module, carry out exporting to after the main steam flow signal feedforward computing internal controller C3 of fuel quantity controller;
Step 60: the main steam flow signal is sent into the fuel quantity controller, according to main-piping pressure coordinate and strategy controller in the input value of fuel quantity controller switch terminal, call different internal controller C1, C2, C3 or C4, the difference of main steam flow signal and fuel quantity control definite value is carried out fuel quantity regulate and export boiler to after the control computing and give powder system as the burning control signal.
Thermal power plant boiler main-piping pressure coordinated control system of the present utility model can be the variation of external load according to the steam main-piping pressure, each boiler fellowship pressure regulation of coordinated allocation, by reasonable setting to each boiler load distribution coefficient, determine the load set-point of every boiler, thereby realization fellowship, reasonable distribution, to eliminate the mutual disturbance of load between each boiler, fast, steadily control main-piping pressure, the design of machine supplying powder automatic switching program simultaneously, can make boiler load in a big way during rapid fluctuations, automatic burner control system possesses the ability of fast and stable main steam pressure, thereby realize the stable of main-piping pressure or reduce its fluctuating range, finally realize the safety of whole header system boiler system, stable, economical operation.
Claims (2)
1. thermal power plant boiler main-piping pressure coordinated control system comprises:
The secondary control of main steam pressure main control loop and fuel quantity loop, wherein said main steam pressure main control loop comprises main steam pressure signal acquisition module and main steam pressure control device, the secondary control of described fuel quantity loop comprises main steam flow signal acquisition module and fuel quantity controller, the output of described main steam pressure signal acquisition module is connected with the input of main steam pressure control device, the output of described main steam flow signal acquisition module is connected with the input of fuel quantity controller, the definite value input of the output of described main steam pressure control device and fuel quantity controller is connected, and the output of described fuel quantity controller is connected to powder system with boiler;
In addition, also comprise a drum pressure FEEDFORWARD CONTROL loop and a main steam flow FEEDFORWARD CONTROL loop, wherein said drum pressure FEEDFORWARD CONTROL loop comprises drum pressure signal acquisition module and drum pressure feed-forward signal computing module, the output of described drum pressure signal acquisition module is connected with the input of drum pressure feed-forward signal computing module, and the output of drum pressure feed-forward signal computing module is connected with the input of fuel quantity controller; Described main steam flow FEEDFORWARD CONTROL loop comprises main steam flow signal acquisition module and main steam flow feed-forward signal computing module, the output of described main steam flow signal acquisition module is connected with the input of main steam flow feed-forward signal computing module, and the output of main steam flow feed-forward signal computing module is connected with the input of fuel quantity controller;
Further, also comprise a main-piping pressure coordination control loop, it is characterized in that:
Described main-piping pressure is coordinated control loop and is comprised that main-piping pressure signal acquisition module and a main-piping pressure coordinate and strategy controller, the output of described main-piping pressure signal acquisition module and aforementioned main steam pressure signal acquisition module, main steam flow signal acquisition module inserts this main-piping pressure simultaneously and coordinates and strategy controller, described main-piping pressure is coordinated and one of them output of strategy controller is connected with the definite value input of main steam pressure control device, and another output connects with the switch terminal of fuel quantity controller;
Described fuel quantity controller comprises internal controller C1, internal controller C2, internal controller C3 and internal controller C4, input is connected with C4 with internal controller C1, C2, C3 simultaneously in the output of wherein said main steam flow signal acquisition module, the output of drum pressure feed-forward signal computing module is connected with internal controller C2 input, and input is connected with the internal controller C3 of fuel quantity controller in the output of main steam flow feed-forward signal computing module.
2. thermal power plant boiler main-piping pressure coordinated control system according to claim 1, it is characterized in that, internal controller C1 in the described fuel quantity controller selects logic judgment module for use, C2 selects the big damping PI control module of band feedforward for use, C3 selects the quick PI control module of band feedforward for use, and C4 selects the quick PI control module of not being with feedforward for use.
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| CN2011200955705U CN202032549U (en) | 2011-04-02 | 2011-04-02 | Header pressure coordination control system for thermal power plant boiler |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425807A (en) * | 2011-11-23 | 2012-04-25 | 华北电力大学（保定） | Combustion feedforward and feedback composite optimization controlling method for pulverized coal fired boiler |
| CN102734784A (en) * | 2012-06-21 | 2012-10-17 | 中国石油化工股份有限公司 | Method for controlling pressure of ultra-high pressure steam pipe network |
| CN102937287A (en) * | 2012-11-15 | 2013-02-20 | 辽宁省电力有限公司电力科学研究院 | Analyzing method for piping-main scheme intermediate reheat unit boiler start-up operating parameter characteristics |
| CN103486607A (en) * | 2013-09-30 | 2014-01-01 | 攀钢集团攀枝花钢钒有限公司 | Automatic fuel adjustment system and method of multi-fuel fired boiler |
| CN104964263A (en) * | 2015-06-23 | 2015-10-07 | 大唐韩城第二发电有限责任公司 | Control method for boiler main steam pressure |
| CN105276562A (en) * | 2015-11-25 | 2016-01-27 | 杭州和利时自动化有限公司 | Method and system for coordinating header system boilers |
| CN105757711A (en) * | 2016-03-18 | 2016-07-13 | 国家电投集团河南电力有限公司技术信息中心 | Wide-load main steam pressure control method for cogeneration unit |
| CN106765022A (en) * | 2016-12-30 | 2017-05-31 | 江苏和隆优化能源科技有限公司 | The many stove coordination optimizing control systems of many criterions based on boiler efficiency |
| CN112082142A (en) * | 2020-08-19 | 2020-12-15 | 江苏未来智慧信息科技有限公司 | Boiler intelligent coordination system and method for coal-fired unit of power plant |
| CN112460573A (en) * | 2020-11-20 | 2021-03-09 | 中国能源建设集团华东电力试验研究院有限公司 | Main steam pressure stability control system of main pipe unit and control method thereof |
| CN113464920A (en) * | 2021-07-07 | 2021-10-01 | 哈尔滨中远控制工程有限公司 | Method and system for coordinately controlling steam pressure of main pipe |
| CN114673981A (en) * | 2022-04-25 | 2022-06-28 | 四川泸天化创新研究院有限公司 | Advanced control system and control method for boiler plant |
| CN114673981B (en) * | 2022-04-25 | 2024-04-30 | 四川泸天化创新研究院有限公司 | Advanced control system and control method for boiler device |
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2011
- 2011-04-02 CN CN2011200955705U patent/CN202032549U/en not_active Expired - Lifetime
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| CN102425807B (en) * | 2011-11-23 | 2014-04-16 | 华北电力大学（保定） | Combustion feedforward and feedback composite optimization controlling method for pulverized coal fired boiler |
| CN102425807A (en) * | 2011-11-23 | 2012-04-25 | 华北电力大学（保定） | Combustion feedforward and feedback composite optimization controlling method for pulverized coal fired boiler |
| CN102734784A (en) * | 2012-06-21 | 2012-10-17 | 中国石油化工股份有限公司 | Method for controlling pressure of ultra-high pressure steam pipe network |
| CN102937287A (en) * | 2012-11-15 | 2013-02-20 | 辽宁省电力有限公司电力科学研究院 | Analyzing method for piping-main scheme intermediate reheat unit boiler start-up operating parameter characteristics |
| CN103486607A (en) * | 2013-09-30 | 2014-01-01 | 攀钢集团攀枝花钢钒有限公司 | Automatic fuel adjustment system and method of multi-fuel fired boiler |
| CN104964263A (en) * | 2015-06-23 | 2015-10-07 | 大唐韩城第二发电有限责任公司 | Control method for boiler main steam pressure |
| CN105276562A (en) * | 2015-11-25 | 2016-01-27 | 杭州和利时自动化有限公司 | Method and system for coordinating header system boilers |
| CN105276562B (en) * | 2015-11-25 | 2017-11-03 | 杭州和利时自动化有限公司 | The method and system that a kind of header system boiler is coordinated |
| CN105757711B (en) * | 2016-03-18 | 2018-05-08 | 国家电投集团河南电力有限公司技术信息中心 | A kind of wide load main steam pressure control method of cogeneration units |
| CN105757711A (en) * | 2016-03-18 | 2016-07-13 | 国家电投集团河南电力有限公司技术信息中心 | Wide-load main steam pressure control method for cogeneration unit |
| CN106765022A (en) * | 2016-12-30 | 2017-05-31 | 江苏和隆优化能源科技有限公司 | The many stove coordination optimizing control systems of many criterions based on boiler efficiency |
| CN106765022B (en) * | 2016-12-30 | 2022-09-06 | 江苏和隆优化能源科技有限公司 | Multi-criterion multi-furnace coordinated optimization control system based on boiler energy efficiency |
| CN112082142A (en) * | 2020-08-19 | 2020-12-15 | 江苏未来智慧信息科技有限公司 | Boiler intelligent coordination system and method for coal-fired unit of power plant |
| CN112460573A (en) * | 2020-11-20 | 2021-03-09 | 中国能源建设集团华东电力试验研究院有限公司 | Main steam pressure stability control system of main pipe unit and control method thereof |
| CN112460573B (en) * | 2020-11-20 | 2022-06-10 | 中国能源建设集团华东电力试验研究院有限公司 | Main steam pressure stability control system of main pipe unit and control method thereof |
| CN113464920A (en) * | 2021-07-07 | 2021-10-01 | 哈尔滨中远控制工程有限公司 | Method and system for coordinately controlling steam pressure of main pipe |
| CN114673981A (en) * | 2022-04-25 | 2022-06-28 | 四川泸天化创新研究院有限公司 | Advanced control system and control method for boiler plant |
| CN114673981B (en) * | 2022-04-25 | 2024-04-30 | 四川泸天化创新研究院有限公司 | Advanced control system and control method for boiler device |
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