CN103823401A - Method and device for giving alarm in unit-level self start-stop control system - Google Patents

Method and device for giving alarm in unit-level self start-stop control system Download PDF

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CN103823401A
CN103823401A CN201410079071.5A CN201410079071A CN103823401A CN 103823401 A CN103823401 A CN 103823401A CN 201410079071 A CN201410079071 A CN 201410079071A CN 103823401 A CN103823401 A CN 103823401A
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control system
stop control
breakpoint
unit level
fault
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CN103823401B (en
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张秋生
何志永
史文韬
马天霆
叶中华
朱延海
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Guoneng Guohua Beijing Electric Power Research Institute Co ltd
National Energy Group Guohua Power Co ltd
China Shenhua Energy Co Ltd
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China Shenhua Energy Co Ltd
Beijing Guohua Electric Power Co Ltd
Shenhua Guohua Beijing Electric Power Research Institute Co Ltd
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Abstract

The invention discloses a method and a device for giving an alarm in a unit-level self start-stop control system. The control system is divided into a plurality of break points. The method comprises the following steps: determining that the unit-level self start-stop control system meets the input condition; judging whether feedback signals of the break points meet the preset conditions of the break points from the first break point of the unit-level self start-stop control system in sequence, if the preset conditions are met, judging whether a fault signal is detected, if the fault signal is detected, generating an alarm signal and keeping the unit-level self start-stop control system in a current state, and if the fault signal is not detected, judging the feedback signal of the next break point; and giving an alarm according to the alarm signal. According to the method and the system provided by the invention, the alarm can be given in the case of a fault to remind an operator and keep the unit-level self start-stop control system in the current state, so that the running safety and reliability of the system are improved.

Description

For the method and apparatus of reporting to the police from start-stop control system in unit level
Technical field
The present invention relates to monitoring field, particularly, relate to a kind of in unit level from start-stop control system alarm method and device.
Background technology
Unit is from start-stop control system (Automatic Plant Startup and Shutdown System; be called for short APS) automatic unit level start-up course and stopping process are divided into several breakpoints; be function group, automatically complete the whole process that unit level starts or shuts down.Along with the raising of GPA degree and the requirement of personnel reduction and enlargement, the demand of APS is also day by day improved.The unit that designs APS in thermoelectricity and combustion machine is more and more.APS is very high to the requirement of unit automation, requires omnidistance input automatically.While comprising equipment off-duty, also to drop into automatically and enter " automatically awaiting orders " state, just enter normal process control state after waiting device start.But in the process of breakpoint transmission, if generation systems fault or procedure fault, operating personnel cannot learn in time, and unit can continue to carry out next breakpoint from start-stop control system, can cause even accident of more serious fault.
Summary of the invention
The object of the present invention is to provide a kind of method and apparatus for reporting to the police from start-stop control system in unit level, can in the breakpoint transmission of start-stop control system, have fault alarm in unit level and stop the operation of unit level from start-stop control system.
According to an aspect of the present invention, provide a kind of method for reporting to the police from start-stop control system in unit level, this control system is divided into some breakpoints, and the method comprises: determine that unit level meets input condition from start-stop control system; Start to judge successively from the first breakpoint of start-stop control system whether the feedback signal of each breakpoint meets the pre-conditioned of this breakpoint from described unit level, when meeting when pre-conditioned, judge whether to detect fault generation signal, if fault generation signal detected, generate alerting signal and make described unit level maintain current state from start-stop control system, if fault generation signal do not detected, the feedback signal of next breakpoint judged; And report to the police according to described alerting signal.
According to the preferred embodiment of the present invention, affiliated fault can be divided into three ranks, and correspondingly generate the alerting signal of three ranks, scattered control system fault wherein occurs is first level fault, occur measuring-signal fault and actuator failure be second level fault and occur automatic system setting value with measured value is bigger than normal and controlled variable or rate of change out-of-limit be third level fault.
According to the preferred embodiment of the present invention, can judge the feedback signal of next breakpoint until occur that feedback signal does not meet pre-conditioned breakpoint, and determine that this sequence number that does not meet pre-conditioned breakpoint is that unit level is from the executable maximum step number of start-stop control system breakpoint transmission, and start to carry out unit level from start-stop control system breakpoint transmission from described unit level from the executable maximum step number of start-stop control system breakpoint transmission, wherein, in the time that all meeting separately pre-conditioned, the feedback signal of all breakpoints do not carry out described unit level from start-stop control system breakpoint transmission.
According to the preferred embodiment of the present invention, described unit level can be for combustion machine unit level be from start-stop control system from start-stop control system, in the startup control of this system, be disposed with vacuumize, waste heat boiler startup, the startup of combustion machine/steam turbine, set grid-connection and five breakpoints of unit load up, wherein, the pre-conditioned of described five breakpoints can respectively be: vacuum is set up, waste heat boiler temperature and pressure is greater than preset value, combustion machine/steam turbine rotating speed reaches the grid-connected and unit load of 3000 revs/min, unit and is greater than 25MW.
According to the preferred embodiment of the present invention; described unit level can be for combustion machine unit level be from start-stop control system from start-stop control system; in the shutdown control of this system, can be disposed with unit trip, drum blowdown, cutoff water pump, close gas baffle and destroy vacuum four breakpoints; wherein; the pre-conditioned of described four breakpoints respectively is: unit load down, off-the-line, flame-out, reduction of speed; drum sewage door is opened certain hour; feed pump stops and gas baffle is closed, and vacuum destroyed.
According to a further aspect of the invention, provide a kind of device of reporting to the police in unit level in start-stop control system, wherein this unit level is provided with several breakpoints from start-stop control system, and this device comprises: detection module, for detection of whether there being fault-signal; Determination module, for determining that unit level meets input condition from start-stop control system, start to judge successively from the first breakpoint of start-stop control system whether the feedback signal of each breakpoint meets the pre-conditioned of this breakpoint from described unit level, wherein, when meeting when pre-conditioned, if fault generation signal detected, generate alerting signal and also make described unit level maintain current state from start-stop control system, if fault generation signal do not detected, the feedback signal of next breakpoint judged; And alarm module, for reporting to the police according to described alerting signal.
According to the preferred embodiment of the present invention, affiliated fault is divided into three ranks, and correspondingly generate the alerting signal of three ranks, scattered control system fault wherein occurs is first level fault, occur measuring-signal fault and actuator failure be second level fault and occur automatic system setting value with measured value is bigger than normal and controlled variable or rate of change out-of-limit be third level fault.
According to the preferred embodiment of the present invention, described device also comprises execution module, this execution module judges the feedback signal of next breakpoint at described determination module until occur that feedback signal does not meet pre-conditioned breakpoint, and determine that this sequence number that does not meet pre-conditioned breakpoint is that unit level starts to carry out unit level from start-stop control system breakpoint transmission from described unit level from the executable maximum step number of start-stop control system breakpoint transmission in the time of the executable maximum step number of start-stop control system breakpoint transmission, wherein, in the time that all meeting separately pre-conditioned, the feedback signal of all breakpoints do not carry out described unit level from start-stop control system breakpoint transmission.
According to the preferred embodiment of the present invention, wherein said unit level can be for combustion machine unit level be from start-stop control system from start-stop control system, in the startup control of this system, be disposed with vacuumize, waste heat boiler startup, the startup of combustion machine/steam turbine, set grid-connection and five breakpoints of unit load up, wherein, the pre-conditioned of described five breakpoints can respectively be: vacuum is set up, waste heat boiler temperature and pressure is greater than preset value, combustion machine/steam turbine rotating speed reaches the grid-connected and unit load of 3000 revs/min, unit and is greater than 25MW.
According to the preferred embodiment of the present invention; described unit level can be for combustion machine unit level be from start-stop control system from start-stop control system; in the shutdown control of this system, be disposed with unit trip, drum blowdown, cutoff water pump, close gas baffle and destroy vacuum four breakpoints; wherein; the pre-conditioned of described four breakpoints can respectively be: unit load down, off-the-line, flame-out, reduction of speed; drum sewage door is opened certain hour; feed pump stops and gas baffle is closed, and vacuum destroyed.
Method and system for reporting to the police from start-stop control system in unit level provided by the invention, can be in the process of breakpoint transmission whether receive fault generation signal and remind operating personnel at the alarm that breaks down by judging whether to meet at each breakpoint then to detect after pre-conditioned, and make described unit level maintain current state from start-stop control system, greatly improved the safety and reliability of system operation.In addition, provided by the inventionly can also carry out classifying alarm to the fault occurring for the method and system of reporting to the police from start-stop control system in unit level, thereby can more effectively make staff's maintaining-managing system, greatly alleviate operations staff's working strength, improve on the whole the automatization level of unit.Make the start and stop of unit more convenient, safer, more reliably, more long-lived, more flexibly, more save time, more energy-conservation.
Accompanying drawing explanation
Fig. 1 is the logic diagram for the method for reporting to the police from start-stop control system in unit level according to embodiment of the present invention;
Fig. 2 is according to the structural representation of the device of reporting to the police in start-stop control system in unit level of embodiment of the present invention; And
Fig. 3 is the structural representation of the device of reporting to the police in start-stop control system in unit level according to the preferred embodiment of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing.
As shown in Figure 1, the invention provides a kind of method for reporting to the police from start-stop control system in unit level, wherein, this control system is divided into some breakpoints, and the method comprises: determine that unit level meets input condition S21 from start-stop control system; Start to judge successively from the first breakpoint of start-stop control system whether the feedback signal of each breakpoint meets the pre-conditioned S22 of this breakpoint from described unit level, wherein, when meeting when pre-conditioned, judge whether to detect fault generation signal S23, if fault generation signal detected, generate alerting signal and make described unit level maintain current state S26 from start-stop control system, if fault generation signal do not detected, the feedback signal of next breakpoint being judged to S24; And according to described alerting signal warning (not shown).
Wherein, described alerting signal can comprise the information such as position, type and the design parameter that fault occurs, and operating personnel can determine that fault has occurred for concrete which breakpoint of described unit, which equipment of which function group according to described alerting signal.
Preferably, the method also judges the feedback signal of next breakpoint until occur that feedback signal does not meet pre-conditioned breakpoint, and determine that this sequence number that does not meet pre-conditioned breakpoint is that unit level is from the executable maximum step number of start-stop control system breakpoint transmission, and start to carry out unit level from start-stop control system breakpoint transmission S29 from described unit level from the executable maximum step number of start-stop control system breakpoint transmission, wherein, in the time that all meeting separately pre-conditioned, the feedback signal of all breakpoints do not carry out described unit level from start-stop control system breakpoint transmission S28.
Wherein, breakpoint is, according to set control strategy, unit level is divided into several systems from start-stop control system, and each breakpoint not only connects each other but also separate.In the present invention, for the setting of breakpoint, should, according to the actual conditions of field apparatus, meet the service requirement of each classical control system, thus realize unit from off control, also can meet the requirement to each isolated operation operating mode and process operation.In addition,, when described unit level is after start-stop control system maintains current state S26, can manually be solved by operating personnel the startup of fault recovery system.
Preferably, affiliated fault can also be divided into three ranks according to of the present invention for the method for reporting to the police from start-stop control system in unit level, and correspondingly generate the alerting signal of three ranks, scattered control system fault wherein occurs is first level fault, occur measuring-signal fault and actuator failure be second level fault and occur automatic system setting value with measured value is bigger than normal and controlled variable or rate of change out-of-limit be third level fault.When unit level is in the time that start stop system breaks down, alerting signal is magnanimity information, and classifying alarm is to organize operating personnel's paying attention major failure reason and deal with rapidly in order to help.
According to the preferred embodiment of the present invention, described unit level is that combustion machine unit level is from start-stop control system from start-stop control system, in the startup control of this system, be disposed with vacuumize, waste heat boiler startup, the startup of combustion machine/steam turbine, set grid-connection and five breakpoints of unit load up, wherein, the pre-conditioned of described five breakpoints respectively is: vacuum is set up, waste heat boiler temperature and pressure is greater than preset value, combustion machine/steam turbine rotating speed reaches the grid-connected and unit load of 3000 revs/min, unit and is greater than 25MW.
For example, when unit level drops into that button has been opened and when satisfied input condition from start-stop control system, judge whether vacuum has been set up and whether unit level is pressed from start-stop control system first step breakpoint ACK button, if the two all meets, determine whether and receive fault generation signal, if do not have, next judge waste heat boiler temperature, pressure whether is greater than predetermined value and whether the second breakpoint ACK button is pressed, if the two all meets, determine whether and receive fault generation signal, if receive fault generation signal, unit level stops at current state from start-stop control system and does not move.
According to the preferred embodiment of the present invention; described unit level from start-stop control system for can fire machine unit level from start-stop control system; in the shutdown control of this system, can be disposed with unit trip, drum blowdown, cutoff water pump, close gas baffle and destroy vacuum four breakpoints; wherein; the pre-conditioned of described four breakpoints respectively is: unit load down, off-the-line, flame-out, reduction of speed; drum sewage door is opened certain hour; feed pump stops and gas baffle is closed, and vacuum destroyed.
As shown in Figure 2, according to a further aspect of the invention, provide a kind of device of reporting to the police in unit level in start-stop control system, wherein this unit level is provided with several breakpoints from start-stop control system, this device comprises: detection module 10, for detection of whether there being fault-signal; Determination module 20, for determining that unit level meets input condition from start-stop control system, start to judge successively from the first breakpoint of start-stop control system whether the feedback signal of each breakpoint meets the pre-conditioned of this breakpoint from described unit level, wherein, when meeting when pre-conditioned, if fault generation signal detected, generate alerting signal and also make described unit level maintain current state from start-stop control system, if fault generation signal do not detected, the feedback signal of next breakpoint judged; And alarm module 30, for reporting to the police according to described alerting signal.
Wherein, described detection module 10 and described determination module 20 can be to be integrated in the Logic control module of unit level from start-stop control system, can be also independent logical circuit or programmable logic controller (PLC)s.Described alarm module 30 can be to be positioned at manipulation center or on-the-spot display, can show in real time the All Alerts information that described alerting signal comprises, can be to remind with speech form the speech player of the All Alerts information that alerting signal comprises described in staff.Between described detection module 10, described determination module 20 and described alarm module 30, can communicate by letter by wired or wireless mode.
According to the preferred embodiment of the present invention, affiliated fault can be divided into three ranks, and correspondingly generate the alerting signal of three ranks, scattered control system fault wherein occurs is first level fault, occur measuring-signal fault and actuator failure be second level fault and occur automatic system setting value with measured value is bigger than normal and controlled variable or rate of change out-of-limit be third level fault.
Preferably, as shown in Figure 3, described device also comprises execution module 40, this execution module 40 judges the feedback signal of next breakpoint at described determination module until occur that feedback signal does not meet pre-conditioned breakpoint, and determine that this sequence number that does not meet pre-conditioned breakpoint is that unit level starts to carry out unit level from start-stop control system breakpoint transmission from described unit level from the executable maximum step number of start-stop control system breakpoint transmission in the time of the executable maximum step number of start-stop control system breakpoint transmission, wherein, in the time that all meeting separately pre-conditioned, the feedback signal of all breakpoints do not carry out described unit level from start-stop control system breakpoint transmission.
According to the preferred embodiment of the present invention, wherein said unit level can be for combustion machine unit level be from start-stop control system from start-stop control system, in the startup control of this system, be disposed with vacuumize, waste heat boiler startup, the startup of combustion machine/steam turbine, set grid-connection and five breakpoints of unit load up, wherein, the pre-conditioned of described five breakpoints can respectively be: vacuum is set up, waste heat boiler temperature and pressure is greater than preset value, combustion machine/steam turbine rotating speed reaches the grid-connected and unit load of 3000 revs/min, unit and is greater than 25MW.
According to the preferred embodiment of the present invention; described unit level can be for combustion machine unit level be from start-stop control system from start-stop control system; in the shutdown control of this system, can be disposed with unit trip, drum blowdown, cutoff water pump, close gas baffle and destroy vacuum four breakpoints; wherein; the pre-conditioned of described four breakpoints respectively is: unit load down, off-the-line, flame-out, reduction of speed; drum sewage door is opened certain hour; feed pump stops and gas baffle is closed, and vacuum destroyed.
Method and system for reporting to the police from start-stop control system in unit level provided by the invention, can be in the process of breakpoint transmission whether receive fault generation signal and remind operating personnel at the alarm that breaks down by judging whether to meet at each breakpoint then to detect after pre-conditioned, and make described unit level maintain current state from start-stop control system, greatly improved the safety and reliability of system operation.In addition; provided by the inventionly can also carry out classifying alarm to the fault occurring for the method and system of reporting to the police from start-stop control system in unit level; thereby can more effectively make staff's maintaining-managing system; greatly alleviate operations staff's working strength; improve on the whole the automatization level of unit, make unit startup and shut down more convenient, safer, more reliably, more long-lived, more flexibly, more save time, more energy-conservation.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as full content disclosed in this invention equally.

Claims (10)

1. the method for reporting to the police from start-stop control system in unit level, wherein, this control system is divided into some breakpoints, and the method comprises:
Determine that unit level meets input condition from start-stop control system;
Start to judge successively from the first breakpoint of start-stop control system whether the feedback signal of each breakpoint meets the pre-conditioned of this breakpoint from described unit level,
Wherein, when meeting when pre-conditioned, judge whether to detect fault generation signal, if fault generation signal detected, generate alerting signal and make described unit level maintain current state from start-stop control system, if fault generation signal do not detected, the feedback signal of next breakpoint judged; And
Report to the police according to described alerting signal.
2. method according to claim 1, it is characterized in that, affiliated fault is divided into three ranks, and correspondingly generate the alerting signal of three ranks, scattered control system fault wherein occurs is first level fault, occur measuring-signal fault and actuator failure be second level fault and occur automatic system setting value with measured value is bigger than normal and controlled variable or rate of change out-of-limit be third level fault.
3. method according to claim 1, it is characterized in that, the feedback signal of next breakpoint is judged until occur that feedback signal does not meet pre-conditioned breakpoint, and determine that this sequence number that does not meet pre-conditioned breakpoint is that unit level is from the executable maximum step number of start-stop control system breakpoint transmission, and start to carry out unit level from start-stop control system breakpoint transmission from described unit level from the executable maximum step number of start-stop control system breakpoint transmission, wherein, in the time that all meeting separately pre-conditioned, the feedback signal of all breakpoints do not carry out described unit level from start-stop control system breakpoint transmission.
4. method according to claim 3, wherein said unit level is that combustion machine unit level is from start-stop control system from start-stop control system, in the startup control of this system, be disposed with vacuumize, waste heat boiler startup, the startup of combustion machine/steam turbine, set grid-connection and five breakpoints of unit load up, wherein, the pre-conditioned of described five breakpoints respectively is: vacuum is set up, waste heat boiler temperature and pressure is greater than preset value, combustion machine/steam turbine rotating speed reaches the grid-connected and unit load of 3000 revs/min, unit and is greater than 25MW.
5. method according to claim 3; wherein said unit level is that combustion machine unit level is from start-stop control system from start-stop control system; in the shutdown control of this system, be disposed with unit trip, drum blowdown, cutoff water pump, close gas baffle and destroy vacuum four breakpoints; wherein; the pre-conditioned of described four breakpoints respectively is: unit load down, off-the-line, flame-out, reduction of speed; drum sewage door is opened certain hour; feed pump stops and gas baffle is closed, and vacuum destroyed.
6. a device of reporting to the police in start-stop control system in unit level, wherein this unit level is provided with several breakpoints from start-stop control system, and this device comprises:
Detection module, for detection of whether there being fault-signal;
Determination module, for determining that unit level meets input condition from start-stop control system, start to judge successively from the first breakpoint of start-stop control system whether the feedback signal of each breakpoint meets the pre-conditioned of this breakpoint from described unit level, wherein, when meeting when pre-conditioned, if fault generation signal detected, generate alerting signal and also make described unit level maintain current state from start-stop control system, if fault generation signal do not detected, the feedback signal of next breakpoint judged; And
Alarm module, for reporting to the police according to described alerting signal.
7. device according to claim 6, it is characterized in that, affiliated fault is divided into three ranks, and correspondingly generate the alerting signal of three ranks, scattered control system fault wherein occurs is first level fault, occur measuring-signal fault and actuator failure be second level fault and occur automatic system setting value with measured value is bigger than normal and controlled variable or rate of change out-of-limit be third level fault.
8. device according to claim 6, also comprise execution module, this execution module judges the feedback signal of next breakpoint at described determination module until occur that feedback signal does not meet pre-conditioned breakpoint, and determine that this sequence number that does not meet pre-conditioned breakpoint is that unit level starts to carry out unit level from start-stop control system breakpoint transmission from described unit level from the executable maximum step number of start-stop control system breakpoint transmission in the time of the executable maximum step number of start-stop control system breakpoint transmission, wherein, in the time that all meeting separately pre-conditioned, the feedback signal of all breakpoints do not carry out described unit level from start-stop control system breakpoint transmission.
9. device according to claim 8, wherein said unit level is that combustion machine unit level is from start-stop control system from start-stop control system, in the startup control of this system, be disposed with vacuumize, waste heat boiler startup, the startup of combustion machine/steam turbine, set grid-connection and five breakpoints of unit load up, wherein, the pre-conditioned of described five breakpoints respectively is: vacuum is set up, waste heat boiler temperature and pressure is greater than preset value, combustion machine/steam turbine rotating speed reaches the grid-connected and unit load of 3000 revs/min, unit and is greater than 25MW.
10. device according to claim 8; wherein said unit level is that combustion machine unit level is from start-stop control system from start-stop control system; in the shutdown control of this system, be disposed with unit trip, drum blowdown, cutoff water pump, close gas baffle and destroy vacuum four breakpoints; wherein; the pre-conditioned of described four breakpoints respectively is: unit load down, off-the-line, flame-out, reduction of speed; drum sewage door is opened certain hour; feed pump stops and gas baffle is closed, and vacuum destroyed.
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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
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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
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
WO2019128536A1 (en) * 2017-12-29 2019-07-04 凯龙高科技股份有限公司 Controller of methanol heater
CN108170183B (en) * 2017-12-29 2020-06-09 凯龙高科技股份有限公司 Methanol heater controller
CN108170183A (en) * 2017-12-29 2018-06-15 凯龙高科技股份有限公司 A kind of methanol heater controller
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