CN104597898A - Method of automatically eliminating faults by sequence control system of thermal power generating unit - Google Patents
Method of automatically eliminating faults by sequence control system of thermal power generating unit Download PDFInfo
- Publication number
- CN104597898A CN104597898A CN201510054735.7A CN201510054735A CN104597898A CN 104597898 A CN104597898 A CN 104597898A CN 201510054735 A CN201510054735 A CN 201510054735A CN 104597898 A CN104597898 A CN 104597898A
- Authority
- CN
- China
- Prior art keywords
- control system
- generating unit
- power generating
- sequence control
- fired power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0267—Fault communication, e.g. human machine interface [HMI]
- G05B23/027—Alarm generation, e.g. communication protocol; Forms of alarm
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0286—Modifications to the monitored process, e.g. stopping operation or adapting control
- G05B23/0289—Reconfiguration to prevent failure, e.g. usually as a reaction to incipient failure detection
Abstract
The invention discloses a method of automatically eliminating faults by a sequence control system of a thermal power generating unit. The method comprises the following steps: 1) the sequence control system of the thermal power generating unit sends a control instruction to target equipment; 2) judging whether the target equipment is in fault; 3) judging a fault type; and 4) eliminating the fault according to the fault type. According to the method provided by the invention, when the target equipment is in fault and has standby equipment, or the target equipment is in signal fault, the sequence control system sends out a corresponding fault alarm signal and automatically rejects the fault, and then implements a successive control instruction continuously. According to the method provided by the invention, most equipment faults and signal faults can be eliminated automatically when the sequence control system of the thermal power generating unit is operating, the normal operation of the sequence control system of the thermal power generating unit can be ensured, the availability ratio of the sequence control system of the thermal power generating unit can be effectively improved, and the labor intensity of operating personnel can be reduced practically.
Description
Technical field
The invention belongs to fired power generating unit automatic control technology field, be specifically related to a kind of method of fired power generating unit sequence control system automatic rejection fault.
Background technology
Fired power generating unit sequence control system is the important component part of Control System for Thermal Power Units, fired power generating unit sequence control system sends steering order according to the order preset to the target device of correspondence, thus automatically can complete operation to the multiple equipment in scene successively, to reduce the labour intensity of operations staff according to the step preset.
But, the fired power generating unit sequence control system of prior art is after sending steering order to some target devices, receive the correct feedback signal of this target device if fail in Preset Time, then fired power generating unit sequence control system is by out of service, no longer performs subsequent control instruction.Because on-the-spot running environment is severe, often can there is equipment failure or signal fault in fired power generating unit.After equipment failure refers to that Control System for Thermal Power Units sends steering order to target device, target device breaks down and cannot perform instruction; After signal fault refers to that Control System for Thermal Power Units sends steering order to target device, target device in fact performs instruction, but feedback signal is not sent back to.These faults all will cause fired power generating unit sequence control system normally to run after occurring.In recent years, with the abbreviation of APS(English " automatic plant startup and shutdown control system ", Chinese translation is " fired power generating unit automatic start-stop control system ") for the fired power generating unit sequence control system of representative is just in widespread use, and the frequent generation of equipment failure or signal fault, fired power generating unit sequence control system is caused normally to run, greatly reduce the available rate of fired power generating unit sequence control system, significantly increase the labour intensity of thermal power unit operation personnel.
Summary of the invention
The technical problem to be solved in the present invention is just: the defect existed for prior art, there is provided one can fired power generating unit sequence control system run in, automatic rejection most equipment fault and signal fault, continue to perform subsequent step, effective raising fired power generating unit sequence control system available rate, reduces the method for the fired power generating unit sequence control system automatic rejection fault of operations staff's labour intensity conscientiously.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is: the method for fired power generating unit sequence control system automatic rejection fault, comprises the steps:
1) fired power generating unit sequence control system sends steering order to target device;
2) described fired power generating unit sequence control system judges whether target device breaks down, if break down, then performs step 3); If do not break down, then fired power generating unit sequence control system jumps to step 1) and performs follow-up steering order according to the order continuation preset;
3) described fired power generating unit sequence control system is according to the situation of change of the running state parameter of target device, judges that the fault type that described target device breaks down is equipment failure or signal fault;
4) described fired power generating unit sequence control system rejects fault according to described fault type: when described fault type is equipment failure, then fired power generating unit sequence control system stops the current steering order of performance objective equipment; When described fault type is signal fault, then fired power generating unit sequence control system jumps to step 1) and performs follow-up steering order according to the order continuation preset.
Further, described step 2) in judge that the step whether target device breaks down comprises: after described fired power generating unit sequence control system sends steering order to target device, if do not receive the correct feedback signal of target device within the feedback signal stand-by period t preset, then judge that target device breaks down; If receive the correct feedback signal of target device within the feedback signal stand-by period t preset, then judge that target device does not break down.
Further, judge in described step 3) that fault type that target device breaks down is that the step of equipment failure or signal fault comprises: described fired power generating unit sequence control system read the currency of the described target device running state parameter corresponding with described steering order and steering order send before value, and calculate the variable quantity of described running state parameter value, if the variable quantity of described running state parameter value does not exceed predetermined threshold value, then judge that the fault type that described target device breaks down is equipment failure, otherwise judge that the fault type that described target device breaks down is signal fault.
Further, in described step 4), fired power generating unit sequence control system stops also comprising the step checking stand-by equipment during the current steering order of performance objective equipment, concrete steps comprise: after fired power generating unit sequence control system stops the current steering order of performance objective equipment, check whether target device has available stand-by equipment, if target device has available stand-by equipment, then forward current steering order to this stand-by equipment, jump to step 2); If target device is without available stand-by equipment, then fired power generating unit sequence control system is out of service, no longer performs subsequent control instruction.
Further, in described step 4) when described fault type is equipment failure, also comprise the step that fired power generating unit sequence control system sends equipment failure alarm signal.
Further, in described step 4) when described fault type is signal fault, also comprise the step that fired power generating unit sequence control system sends signal fault alarm signal.
Compared with prior art, the invention has the advantages that: in fired power generating unit sequence control system operational process, when running into equipment failure or signal fault, can automatic rejection major part fault, continue perform subsequent step.Application the present invention, effectively can improve the available rate of fired power generating unit sequence control system, conscientiously reduces the labour intensity of operations staff.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the embodiment of the present invention.
Embodiment
Below in conjunction with specific embodiment and Fig. 1, the invention will be further described, but protection domain not thereby limiting the invention.In fired power generating unit sequence control system, there is continuous print status monitoring to the running state parameter of each equipment of fired power generating unit, accurately can reflect the running status that each equipment of fired power generating unit is real-time.In the present embodiment, with fired power generating unit A induced draft fan #1 lube oil pump (hereinafter referred to as #1 lube oil pump) for fired power generating unit sequence control system is according to the target device of order corresponding to the current steering order needing to perform of setting.
The implementation step of the method for embodiment of the present invention fired power generating unit sequence control system automatic rejection fault is as follows:
1) fired power generating unit sequence control system sends steering order to target device;
2) fired power generating unit sequence control system judges whether target device breaks down, if break down, then performs step 3); If do not break down, then fired power generating unit sequence control system jumps to step 1) and performs follow-up steering order according to the order continuation preset;
3) fired power generating unit sequence control system is according to the situation of change of the running state parameter of target device, judges that the fault type that target device breaks down is equipment failure or signal fault;
4) fired power generating unit sequence control system rejects fault according to fault type: when fault type is equipment failure, then fired power generating unit sequence control system stops performing current steering order; When fault type is signal fault, then fired power generating unit sequence control system jumps to step 1) and performs follow-up steering order according to the order continuation preset.
In the present embodiment, step 1) fired power generating unit sequence control system sends enabled instruction to #1 lube oil pump.
Be target device for #1 lube oil pump, send the steering order being specially enabled instruction to #1 lube oil pump in the present embodiment, step 2) judge that the step whether #1 lube oil pump breaks down comprises: after fired power generating unit sequence control system sends enabled instruction to #1 lube oil pump, if Control System for Thermal Power Units did not receive the feedback signal that #1 lube oil pump " starts " within 30 seconds, then judge that #1 lube oil pump breaks down, jump to step 3); If Control System for Thermal Power Units received the feedback signal that #1 lube oil pump " starts " within 30 seconds, then judge that #1 lube oil pump does not break down, fired power generating unit sequence control system jumps to step 1) and continues to perform follow-up steering order according to the order preset.It should be noted that, the feedback signal stand-by period t preset for #1 lube oil pump in the present embodiment is 30 seconds, but the value of feedback signal stand-by period t preset is that its value can preset different values according to the situation of the response time of different equipment and other factors impact with concrete device-dependent.
In the present embodiment, the running state parameter that the enabled instruction of target device #1 lube oil pump is corresponding is fired power generating unit A induced draft fan lubricating oil main-piping pressure value (hereinafter referred to as lubricating oil main-piping pressure value), step 3) judges that fault type that #1 lube oil pump breaks down is that the step of equipment failure or signal fault comprises: fired power generating unit sequence control system is after judging that #1 lube oil pump breaks down, value before the currency of fired power generating unit sequence control system reading lubricating oil main-piping pressure value and steering order send, and calculate the variable quantity of lubricating oil main-piping pressure value, if this variable quantity does not exceed predetermined threshold value, then judge that the fault type that #1 lube oil pump breaks down is equipment failure, otherwise judge that the fault type that #1 lube oil pump breaks down is signal fault.
Such as, in the present embodiment, the predetermined threshold value of lubricating oil main-piping pressure value is 0.1MPa, the value of lubricating oil main-piping pressure before steering order sends is 0MPa, if the currency of lubricating oil main-piping pressure value is 0.2MPa, then the variable quantity of lubricating oil main-piping pressure value is | 0.2-0|=0.2MPa, and the variable quantity 0.2MPa of lubricating oil main-piping pressure value exceedes predetermined threshold value 0.1MPa, the actual enabled instruction having performed fired power generating unit sequence control system and sent of this #1 lube oil pump is then described, is judged as that the fault type that this #1 lube oil pump breaks down is signal fault; If the currency of lubricating oil main-piping pressure value is 0.01MPa, then the variable quantity of lubricating oil main-piping pressure value is | 0.01-0|=0.01MPa, then the variable quantity 0.01MPa of lubricating oil main-piping pressure value does not exceed predetermined threshold value 0.1MPa, then illustrate and the enabled instruction that this #1 lube oil pump does not perform fired power generating unit sequence control system and sends judge that the fault type that this #1 lube oil pump breaks down is equipment failure.It should be noted that, the variable quantity of running state parameter both can be the currency of running state parameter, steering order send before value between difference, also can be the currency of running state parameter, steering order send before value between the ratio that obtains divided by the value before the currency of running state parameter or steering order send of difference, other can be adopted in addition as required can to embody the variable quantity of running state parameter change information; Certainly, the predetermined threshold value that the variable quantity of running state parameter is corresponding is also different because the concrete value mode of the variable quantity of running state parameter is different, the predetermined threshold value of running state parameter is also different because of the difference of equipment, for different equipment and different steering orders, there are the parameter of reflection equipment running status corresponding with it and the predetermined threshold value of running state parameter variable quantity corresponding with it, such as fan blower enabled instruction, corresponding running state parameter can be the rotating speed of fan blower, and corresponding predetermined threshold value can be 100 revolutions per seconds.
In the present embodiment, the step that step 4) rejects fault according to fault type comprises: when fired power generating unit sequence control system judges the generation equipment failure of #1 lube oil pump, fired power generating unit sequence control system stops sending steering order to #1 lube oil pump, check whether this #1 lube oil pump has available stand-by equipment simultaneously, if this #1 lube oil pump has available stand-by equipment (#2 lube oil pump), then forward current steering order to this stand-by equipment, in the present embodiment, #2 lube oil pump is the stand-by equipment of #1 lube oil pump, therefore current steering order (enabled instruction to #1 lube oil pump) is forwarded to #2 lube oil pump, jump to step 2), if this #1 lube oil pump does not have stand-by equipment, then fired power generating unit sequence control system is out of service, no longer performs subsequent control instruction.It should be noted that, fired power generating unit sequence control system is by DCS programming in logic method, to the preset stand-by equipment information associated with it of each target device, and can the running state parameter information of stand-by equipment of on-line monitoring target device and association thereof, such as the #1 lube oil pump in the present embodiment, fired power generating unit sequence control system is prefixed the #2 lube oil pump information of #1 lube oil pump association, and can on-line monitoring #1 lube oil pump, the running state parameter information of #2 lube oil pump, therefore when the generation equipment failure of #1 lube oil pump, current steering order can be forwarded to the stand-by equipment #2 lube oil pump of association.
In the present embodiment, in step 4) when described fault type is equipment failure, also comprise the step that fired power generating unit sequence control system sends equipment failure alarm signal, to remind operations staff #1 lube oil pump generation equipment failure; When described fault type is signal fault, also comprise the step that fired power generating unit sequence control system sends signal fault alarm signal, to remind operations staff #1 lube oil pump generation signal fault.When fired power generating unit sequence control system judges this #1 lube oil pump generation signal fault, because this #1 lube oil pump equipment failure does not occur, the steering order that fired power generating unit sequence control system sends can be performed, fired power generating unit sequence control system sends the alarm signal of this #1 lube oil pump generation signal fault, after reminding this #1 lube oil pump generation signal fault of operations staff, fired power generating unit sequence control system continues to perform subsequent control instruction.
In the present embodiment, fired power generating unit sequence control system is in the generation equipment failure of #1 lube oil pump and when having available stand-by equipment, or when there is signal fault, corresponding failure alarm signal can be sent and automatic rejection fault, ensure that fired power generating unit sequence control system is normally run, thus effectively improve the available rate of fired power generating unit sequence control system, conscientiously reduce the labour intensity of operations staff.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (6)
1. a method for fired power generating unit sequence control system automatic rejection fault, is characterized in that comprising the following steps:
1) fired power generating unit sequence control system sends steering order to target device;
2) described fired power generating unit sequence control system judges whether target device breaks down, if break down, then performs step 3); If do not break down, then fired power generating unit sequence control system jumps to step 1) and performs follow-up steering order according to the order continuation preset;
3) described fired power generating unit sequence control system is according to the situation of change of the running state parameter of target device, judges that the fault type that described target device breaks down is equipment failure or signal fault;
4) described fired power generating unit sequence control system rejects fault according to described fault type: when described fault type is equipment failure, then fired power generating unit sequence control system stops the current steering order of performance objective equipment; When described fault type is signal fault, then fired power generating unit sequence control system jumps to step 1) and performs follow-up steering order according to the order continuation preset.
2. the method for fired power generating unit sequence control system automatic rejection fault according to claim 1, it is characterized in that, described step 2) in judge that the step whether target device breaks down comprises: after described fired power generating unit sequence control system sends steering order to target device, if do not receive the correct feedback signal of target device within the feedback signal stand-by period t preset, then judge that target device breaks down; If receive the correct feedback signal of target device within the feedback signal stand-by period t preset, then judge that target device does not break down.
3. the method for fired power generating unit sequence control system automatic rejection fault according to claim 2, it is characterized in that, judge in described step 3) that fault type that target device breaks down is that the step of equipment failure or signal fault comprises: described fired power generating unit sequence control system read the currency of the described target device running state parameter corresponding with described steering order and steering order send before value, and calculate the variable quantity of described running state parameter value, if the variable quantity of described running state parameter value does not exceed predetermined threshold value, then judge that the fault type that described target device breaks down is equipment failure, otherwise judge that the fault type that described target device breaks down is signal fault.
4. the method for fired power generating unit sequence control system automatic rejection fault according to claim 3, it is characterized in that, in described step 4), fired power generating unit sequence control system stops also comprising the step checking stand-by equipment during the current steering order of performance objective equipment, concrete steps comprise: after fired power generating unit sequence control system stops the current steering order of performance objective equipment, check whether target device has available stand-by equipment, if target device has available stand-by equipment, then forward current steering order to this stand-by equipment, jump to step 2); If target device is without available stand-by equipment, then fired power generating unit sequence control system is out of service, no longer performs subsequent control instruction.
5. the method for fired power generating unit sequence control system automatic rejection fault according to claim 4, it is characterized in that: in described step 4) when described fault type is equipment failure, also comprise the step that fired power generating unit sequence control system sends equipment failure alarm signal.
6. the method for fired power generating unit sequence control system automatic rejection fault according to claim 5, it is characterized in that: in described step 4) when described fault type is signal fault, also comprise the step that fired power generating unit sequence control system sends signal fault alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054735.7A CN104597898B (en) | 2015-02-03 | 2015-02-03 | The method of fired power generating unit sequence control system automatic rejection fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054735.7A CN104597898B (en) | 2015-02-03 | 2015-02-03 | The method of fired power generating unit sequence control system automatic rejection fault |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104597898A true CN104597898A (en) | 2015-05-06 |
| CN104597898B CN104597898B (en) | 2015-09-09 |
Family
ID=53123755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510054735.7A Active CN104597898B (en) | 2015-02-03 | 2015-02-03 | The method of fired power generating unit sequence control system automatic rejection fault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104597898B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109446124A (en) * | 2018-12-11 | 2019-03-08 | 西安热工研究院有限公司 | A kind of fired power generating unit motor and solenoid valve class device drives level structure and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101763106A (en) * | 2010-01-27 | 2010-06-30 | 浙江国华浙能发电有限公司 | Operation optimum management control system and method of thermal generator set |
| CN102213950A (en) * | 2011-05-16 | 2011-10-12 | 上海发电设备成套设计研究院 | Implementation method for self-starting and stopping control system of machine set |
| 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 |
-
2015
- 2015-02-03 CN CN201510054735.7A patent/CN104597898B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101763106A (en) * | 2010-01-27 | 2010-06-30 | 浙江国华浙能发电有限公司 | Operation optimum management control system and method of thermal generator set |
| CN102213950A (en) * | 2011-05-16 | 2011-10-12 | 上海发电设备成套设计研究院 | Implementation method for self-starting and stopping control system of machine set |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 袁淑贤: "火力发电机组自启停控制系统开发与实现", 《中国优秀硕士学位论文全文数据库》, 30 November 2010 (2010-11-30) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109446124A (en) * | 2018-12-11 | 2019-03-08 | 西安热工研究院有限公司 | A kind of fired power generating unit motor and solenoid valve class device drives level structure and method |
| CN109446124B (en) * | 2018-12-11 | 2024-03-19 | 西安热工研究院有限公司 | Driving stage structure and method for motor and electromagnetic valve equipment of thermal power generating unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104597898B (en) | 2015-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2490090A1 (en) | Wind turbine generator system fault processing method and system | |
| CN102455950A (en) | Firmware recovery system and method of base board management controller | |
| CN108869264A (en) | Pumping plant unit fault diagnosis early warning system | |
| CN105157294A (en) | Control method and system for multi-online intelligent oil returning and multi-online system | |
| CN109798703B (en) | Heat pump unit and defrosting control method and device thereof | |
| CN109618546A (en) | Heat dissipating method and system under a kind of server NCSI standby mode | |
| CN109931707A (en) | Gas heater anti-blocking method | |
| CN104597898B (en) | The method of fired power generating unit sequence control system automatic rejection fault | |
| CN104104542A (en) | Real-time intelligent debugging method based on RS485 | |
| CN104010077A (en) | Information processing method and electronic equipment | |
| CN109558209B (en) | Monitoring method for virtual machine | |
| CN105159285A (en) | CAN controller bus fault processing method and device | |
| CN205505297U (en) | Equipment and air conditioner of control air conditioner | |
| CN102571465A (en) | Abnormality warning system and method for server | |
| CN107728047A (en) | Relay test method, apparatus, relay, storage medium and equipment | |
| CN207448038U (en) | A kind of device for detecting numerical control machine tool changer spring assembly and whether coming off or disconnecting | |
| CN106230664B (en) | Method for monitoring and self-recovering state abnormity of front-end processor of scheduling master station | |
| KR101860665B1 (en) | Water Treatment Plant Communication Error Autorecover System and Recovery Method thereof | |
| CN104548467A (en) | Data information acquisition method, data information acquisition device and data information acquisition system applied to foam fire extinguishing system | |
| CN105971863B (en) | Condensate pump connection opens the control method of stand-by pump in condensate extraction system | |
| CN204821611U (en) | Locomotive is listed as start -up system of tail host computer | |
| CN113775484A (en) | Combined control method and device based on temperature change of torsion slip ring and unit power | |
| CN109067567B (en) | Network communication interruption diagnosis method | |
| CN109852451B (en) | Control method and control device for desulfurization system | |
| CN113395017A (en) | Pumped-storage system, control method and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |