CN113223283A - Intelligent alarm system for hydropower station generator set operation interval - Google Patents
Intelligent alarm system for hydropower station generator set operation interval Download PDFInfo
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- CN113223283A CN113223283A CN202110355880.4A CN202110355880A CN113223283A CN 113223283 A CN113223283 A CN 113223283A CN 202110355880 A CN202110355880 A CN 202110355880A CN 113223283 A CN113223283 A CN 113223283A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/008—Measuring or testing arrangements
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
An intelligent alarm system for the operation region of a hydropower station generator set comprises a load generation grading monitoring system and an intelligent alarm system, wherein a load monitoring unit transmits a load value to a load checking unit, the load checking unit transmits an alarm signal to a load alarm unit and gives an alarm when the generator set belongs to an abnormal working position, a worker resets the alarm system through an alarm resetting unit, a state analysis module analyzes the operation state of the generator set and transmits an analysis result to an alarm grading module, the alarm grading module grades signals according to the weight of an accident, the alarm signal is transmitted to the load alarm unit after grading is finished, and the load alarm unit gives a corresponding alarm according to the signal grade; the invention adopts a brand-new distribution detection mode of the generator set operation interval and a graded intelligent alarm system, can judge the operation state of the generator set more reasonably through the system, and has simpler and clearer alarm mode.
Description
Technical Field
The invention belongs to the technical field of intelligent monitoring equipment, and particularly relates to an intelligent alarm system for a hydropower station generator set operation interval.
Background
In the conventional hydropower station monitoring system, a load interval of a generator set is usually set to be three sections, when the load of the generator set rises from zero to the maximum value, the load values of the first section and the last section are recommended operation load values, the middle end is a forbidden operation load value, the working condition of the generator is deteriorated when the generator set operates in the forbidden operation load value interval, and further the generator is greatly influenced.
When a generator set fails and generates an alarm signal, the existing alarm system generally has the following disadvantages:
1. the existing warning system does not distinguish the levels, and all the warnings are displayed on a warning interface;
2. the existing warning system can not automatically judge the running state of the generator set, and only uses the warning displacement mark to give a warning (namely warning or not warning);
3. all alarm modes are in a voice alarm mode, so that important alarms are difficult to distinguish;
4. the alert signal is not color differentiated.
Disclosure of Invention
In view of the technical problems in the background art, the hydropower station generator set operation interval intelligent alarm system provided by the invention adopts a brand-new generator set operation interval distribution detection mode, and the alarm system of the generator set adopts graded intelligent alarm, so that the operation state of the generator set can be judged more reasonably through the system, the alarm mode is simpler and clearer, once the generator set breaks down, a maintainer can quickly know the accident and the reason, and the overhaul efficiency is improved.
In order to solve the technical problems, the invention adopts the following technical scheme to realize:
an intelligent alarm system for the running section of a hydropower station generator set is divided into a load generation grading monitoring system and an intelligent alarm system, wherein the load grading monitoring system comprises a load monitoring unit, the load monitoring unit acquires the real-time load of the generator set and transmits a load value to a load checking unit, the load checking unit determines the specific section of the real-time load of the generator set and judges whether the generator set belongs to a normal working position, when the generator set belongs to an abnormal working position, the load checking unit transmits an alarm signal to the intelligent alarm system, the load alarm unit in the intelligent alarm system sends out alarm information, and field workers reset the alarm system through an alarm resetting unit after eliminating accidents;
the intelligent warning system comprises a state analysis module, the state analysis module can analyze the running state of the generator set after receiving a warning signal, the state analysis module transmits an analysis result to a warning classification module and a wireless transmission module, the wireless transmission module transmits the warning signal to the remote monitoring system, the warning classification module classifies the warning signal according to the weight of an accident, the warning classification module transmits the warning signal to a load warning unit after classifying the signal, and the load warning unit sends out a corresponding warning according to the grade of the signal.
In the preferred scheme, the load monitoring unit collects and judges the real-time load of the generator set by collecting the opening data of the guide vanes and monitoring the load analog quantity of the generator set.
In the preferred scheme, a load checking unit divides a load interval of a generator set into four intervals, namely a recommended operation interval, a non-recommended operation interval, an operation forbidden interval and a vibration operation interval, wherein the operation load of the generator set belongs to a normal operation position when the operation load of the generator set is in the recommended operation interval; when the operation load of the generator set is in the non-recommended operation interval, the operation forbidden interval and the vibration operation interval, the load verification unit immediately sends out an alarm signal to the intelligent alarm system.
In the preferred scheme, the state analysis module receives other abnormal alarm signals of the generator set besides the load alarm signal of the generator set, the state analysis module is connected with the intelligent alarm patrol module, the intelligent alarm patrol module periodically and circularly checks the operation state of each generator set, and the state analysis module immediately sends out an alarm signal when the abnormal operation condition of the generator set is checked.
In a preferred scheme, the alarm classification module classifies the alarm signals into a plurality of classes according to the severity of the accident, and the final alarm modes corresponding to the alarm signals of each class are different.
In the preferred scheme, after receiving the alarm signal, the load alarm unit sends the alarm signal through the message alarm module, the audio alarm module and the warning lamp alarm module, wherein the message alarm module sends messages with different colors according to the level of the alarm signal, the audio alarm module sends alarm sounds with different voices according to the level of the alarm signal, and the warning lamp alarm module sends alarm lamps with different colors according to the level of the alarm signal.
In the preferred scheme, the alarm resetting unit needs manual resetting on site by a worker, otherwise, the alarm is continuously given.
The intelligent warning system for the hydropower station generator set operation interval comprises the following steps:
step 1: the load monitoring unit monitors the running load of the hydropower station generator set in real time, and transmits the monitored load to the load verification unit after signal processing;
step 2: the load checking unit judges whether the load belongs to a normal operation interval, and if the generator set belongs to an abnormal operation interval, the load checking unit sends out an alarm signal and transmits the alarm signal to a state analysis module in a load alarm system;
step 3: the state analysis module analyzes the running state of the generator set after receiving the alarm signal and transmits the analysis result to the alarm grading module;
step 4: the alarm classification module performs classification processing on the alarm signal and transmits the classified alarm signal to the load alarm unit;
step 5: the load alarm unit sends out corresponding alarm signals through the message alarm module, the audio alarm module and the warning lamp alarm module according to the grade of the alarm signals.
In the Step5, the state analysis module receives the alarm signal sent by the intelligent patrol module in addition to the alarm signal sent by the load check unit in the Step2, and the state analysis module is connected with the wireless transmission module and transmits the signal to the remote monitoring system in real time through the wireless transmission module.
This patent can reach following beneficial effect:
1. the system adopts a more refined distribution mode of the generator set load interval, can prevent the generator set from running at the edge of the forbidden running load value, and can more accurately control the running load of the generator set by workers, thereby improving the running efficiency and the service life of the generator set;
2. the intelligent warning system in the system adopts a hierarchical warning mode, so that warning information is simpler and more visual, a maintainer can know the type and the reason of an accident in the first time conveniently, and precious time is saved for processing the fault of the generator set;
3. the system is provided with a wireless transmission module and an intelligent alarm patrol module, and saves manpower and material resources in the process of patrolling the generator set by automatically monitoring the running state of the generator set; by establishing real-time connection with a remote monitoring system, the fault of the generator set during operation can be notified to off-site workers in the first time.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of a load grading test system according to the present invention;
FIG. 2 is a schematic diagram of the intelligent warning system of the present invention;
FIG. 3 is a flowchart of the operation of the load grading monitoring system of the present invention;
FIG. 4 is a flow chart of the intelligent warning system of the present invention.
In the figure: the system comprises a load monitoring unit 1, a load checking unit 2, a recommended operation interval 2-1, a non-recommended operation interval 2-2, an operation forbidden interval 2-3, a vibration operation interval 2-4, a load alarm unit 3, a message alarm module 3-1, an audio alarm module 3-2, a warning lamp alarm module 3-3, an alarm reset unit 4, a state analysis module 5, an intelligent alarm patrol module 6, a wireless transmission module 7 and an alarm grading module 8.
Detailed Description
As shown in fig. 1 and 2, an intelligent warning system for an operation interval of a generator set of a hydropower station is divided into a load generation hierarchical monitoring system and an intelligent warning system, wherein the load hierarchical monitoring system comprises a load monitoring unit 1, the load monitoring unit 1 collects a real-time load of the generator set and transmits a load value to a load checking unit 2, the load checking unit 2 determines a specific interval of the real-time load of the generator set and judges whether the generator set belongs to a normal working position, when the generator set belongs to an abnormal working position, the load checking unit 2 transmits a warning signal to a load warning unit 3 and gives a warning, and a field worker finally resets the warning system through a warning resetting unit 4;
the intelligent warning system comprises a state analysis module 5, the state analysis module 5 can analyze the running state of the generator set after receiving the warning signal, the state analysis module 5 transmits the analysis result to a warning classification module 8, the warning classification module 8 classifies the warning signal according to the severity of the accident, the warning classification module 8 transmits the warning signal to the load warning unit 3 after finishing classifying the signal, and the load warning unit 3 sends out corresponding warning according to the signal grade.
Preferably, as shown in fig. 1, the load monitoring unit 1 judges the load interval by collecting guide vane opening data. Collecting single machine minute output data and determining a load interval; in addition, the load monitoring unit 1 can also monitor the generator load analog quantity and determine the load interval by monitoring the analog quantity.
The preferable scheme is as shown in fig. 1, the load checking unit 2 divides the load interval of the generator set into four large intervals, namely a recommended operation interval 2-1, a non-recommended operation interval 2-2, an operation forbidden interval 2-3 and a vibration operation interval 2-4:
1. when the operation load of the generator set is within the recommended operation interval 2-1, the generator set is optimal in working condition and highest in efficiency, the generator set can operate for a long time in the interval, and meanwhile, the power generation benefit can be improved;
2. when the operation load of the generator set is within the non-recommended operation interval 2-2, the generator set can operate in the interval for a long time, but the generator does not reach the optimal working condition, and the operation in the interval can not generate great influence on the generator, but influences the overall power generation benefit;
3. when the operation load of the generator set is within the operation forbidden interval 2-3, the generator set can operate in the interval at the moment of grid connection, the operation condition of the generator set in the interval is poor, and the generator set needs to leave the interval to operate quickly;
4. when the operation load of the generator set is in a vibration operation interval 2-4, the whole mechanical parts of the generator set vibrate strongly, the generator cannot operate in the interval, and the generator set should be prevented from operating in the interval as far as possible;
when the operation load of the generator set is within the recommended operation interval 2-1, the generator set belongs to a normal operation position; when the operation load of the generator set is in the non-recommended operation interval 2-2, the operation forbidden interval 2-3 and the vibration operation interval 2-4, the load verification unit 2 belongs to an abnormal operation position, and the load verification unit 2 immediately sends an alarm signal to the intelligent alarm system at the moment.
The preferred scheme is as shown in fig. 2, the state analysis module 5 receives other abnormal alarm signals of the generator set besides the load alarm signal of the generator set, the state analysis module 5 is connected with the intelligent alarm patrol module 6, the intelligent alarm patrol module 6 periodically and circularly checks the operation state of each generator set, and when the abnormal operation condition of the generator set is checked, the state analysis module 5 immediately sends out an alarm signal.
In a preferred scheme, as shown in fig. 2, the alarm classification module 8 classifies alarm signals into a plurality of levels according to the severity of an accident, the final alarm modes corresponding to the alarm signals of each level are different, and the alarms are generally classified into four levels, namely a first-level alarm, a second-level alarm, a third-level alarm and a fourth-level alarm in the actual operation process; the first-level alarm is an alarm which needs to be emergently processed by a watchman for emergency alarm (if the alarm is not processed in time, a larger fault occurs, such as shutdown and the like), the second-level alarm is an important alarm which needs to be monitored and processed by the watchman for emergency alarm (after the alarm of the level occurs, the watchman needs to be emergently processed after an event occurs, generally, an action event is protected and the like), the third-level alarm is a common alarm which prompts the watchman to pay attention to the equipment, the fourth-level alarm is a common event, and the watchman can know the event.
In a preferred scheme, as shown in fig. 2, after receiving an alarm signal, the load alarm unit 3 sends the alarm signal through the message alarm module 3-1, the audio alarm module 3-2 and the warning lamp alarm module 3-3, wherein the message alarm module 3-1 sends messages with different colors according to the level of the alarm signal, and usually, the message of the first-level alarm is red, the message of the second-level alarm is orange, the message of the third-level alarm is yellow, and the message of the fourth-level alarm is green;
the audio alarm module 3-2 can send out different voice alarm sounds according to the levels of the alarm signals, the alarm sound of the primary alarm is a sudden buzz sound (different alarm sounds can be set according to personal requirements and voice alarm setting can also be carried out), the alarm sound of the secondary alarm is a normal buzz sound (different alarm sounds can be set according to personal requirements and voice alarm setting can also be carried out), the alarm sound of the tertiary alarm is a prompt sound, the quaternary alarm has no alarm sound, the alarm sound can also support self-definition, and other audio data can be provided as the alarm sound. In addition, the alarm mode can be set as voice alarm, and the text content of the alarm information can be broadcasted;
the warning lamp warning module 3-3 can send out the alarm lamp of different colours according to the rank of warning signal, and the more serious warning is usually, the colour of alarm lamp also can be more dazzling, and the flicker frequency of alarm lamp also can be more frequent.
In a preferred scheme, as shown in fig. 2, the alarm resetting unit 4 needs to be manually reset by a worker on site, otherwise, the alarm is continuously given to ensure that a watch keeper can process all alarms in time.
The preferable scheme is as shown in fig. 2, the state analysis module 5 is connected with a wireless transmission module 7 in the intelligent alarm system, the wireless transmission module 7 is in wireless connection with the remote monitoring system and the mobile terminal, and the wireless transmission module 7 can inform the off-site staff of the fault of the generator set during operation in the first time, so that the interactivity between equipment and people is improved.
The embodiment is shown in fig. 1 to 4, and takes a hydropower station with a maximum load of 300MW as an example:
step 1: the load monitoring unit 1 monitors the running load of the hydropower station generator set in real time, and transmits the monitored load to the load verification unit 2 after signal processing;
step 2: the load verification unit 2 divides the operation load of the 300MW hydropower station generator set into 6 intervals from 0 to the maximum load:
the operation forbidden interval of 0MW-40MW (the operation condition of the generator in the interval is poor, and the influence on the generator is large);
a 40MW-60MW non-recommended operation interval (can be operated in the interval, and the working condition is not high);
the recommended operation interval of 60MW-80MW (the optimal working condition of the generator);
the vibration interval of 80MW-180MW (the vibration interval of the generator, which can not be operated in the vibration interval);
a non-recommended operation range of 180MW-200MW (can be operated in the non-recommended operation range, and the working condition is not high);
the recommended operation interval (the optimal working condition of the generator) is 200MW-300 MW;
then the load checking unit 2 judges whether the load of the negative generator set belongs to the recommended operation interval, if the generator set belongs to the abnormal operation interval, the load checking unit 2 sends out an alarm signal and transmits the alarm signal to a state analysis module 5 in the load alarm system;
and 3, step 3: the state analysis module 5 analyzes the running state of the generator set after receiving the alarm signal and transmits the analysis result to the alarm grading module 8;
and 4, step 4: the alarm classification module 8 divides the alarm signal into four levels of a first-level alarm, a second-level alarm, a third-level alarm and a fourth-level alarm, and transmits the classified alarm signal to the load alarm unit 3;
and 5, step 5: the load alarm unit 3 sends out corresponding alarm signals through a message alarm module 3-1, an audio alarm module 3-2 and a warning lamp alarm module 3-3 according to the levels of the alarm signals:
when the alarm signal is a first-level alarm: the message sending alarm module 3-1 sends out red messages, the audio alarm module 3-2 sends out a sudden buzzing sound, and the warning lamp alarm module 3-3 sends out a dazzling flashing alarm lamp;
when the alarm signal is a secondary alarm: the message sending alarm module 3-1 sends out an orange message, the audio alarm module 3-2 sends out a normal buzzing sound, and the warning lamp alarm module 3-3 sends out a dazzling flashing alarm lamp;
when the alarm signal is a three-level alarm: the message sending alarm module 3-1 sends out yellow messages, the audio alarm module 3-2 sends out prompting buzzing sounds, and the warning lamp alarm module 3-3 sends out bright flashing alarm lamps;
when the alarm signal is a four-level alarm: the message sending alarm module 3-1 sends out green messages, the audio alarm module 3-2 does not send out sound, and the warning lamp alarm module 3-3 does not flicker light.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the technical features described in the present invention can be combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (9)
1. The utility model provides a power station generating set operation interval intelligence alarm system, the system divide into load hierarchical monitoring system and intelligent alarm system, its characterized in that: the load grading monitoring system comprises a load monitoring unit (1), wherein the load monitoring unit (1) collects the real-time load of the generator set and transmits a load value to a load checking unit (2), the load checking unit (2) determines the specific interval of the real-time load of the generator set and judges whether the generator set belongs to a normal working position, when the generator set belongs to an abnormal working position, the load checking unit (2) transmits an alarm signal to an intelligent alarm system, a load alarm unit (3) in the intelligent alarm system sends out alarm information, and field workers reset the alarm system through an alarm reset unit (4) after eliminating accidents;
the intelligent warning system comprises a state analysis module (5), the state analysis module (5) can analyze the running state of the generator set after receiving a warning signal, the state analysis module (5) transmits an analysis result to a warning classification module (8) and is connected with a wireless transmission module (7), the wireless transmission module (7) transmits the warning signal to a remote monitoring system, the warning classification module (8) classifies the warning signal according to the weight of an accident, the warning classification module (8) transmits the warning signal to a load warning unit (3) after classifying the signal, and the load warning unit (3) sends a warning of a corresponding grade.
2. The intelligent warning system for the hydropower station generator set operation interval according to claim 1, characterized in that: the load monitoring unit (1) collects and judges the real-time load of the generator set by collecting guide vane opening data and monitoring the load analog quantity of the generator set.
3. The intelligent warning system for the hydropower station generator set operation interval according to claim 1, characterized in that: the load checking unit (2) divides a load interval of the generator set into four operation intervals, namely a recommended operation interval (2-1), a non-recommended operation interval (2-2), an operation forbidden interval (2-3) and a vibration operation interval (2-4), wherein the operation load of the generator set belongs to a normal operation position when the operation load of the generator set is in the recommended operation interval (2-1); when the operation load of the generator set is in the non-recommended operation interval (2-2), the operation forbidden interval (2-3) and the vibration operation interval (2-4), the generator set belongs to an abnormal operation position, and at the moment, the load verification unit (2) immediately sends an alarm signal to the intelligent alarm system.
4. The intelligent warning system for the hydropower station generator set operation interval according to claim 1, characterized in that: the state analysis module (5) receives other abnormal alarm signals of the generator set besides the load alarm signal of the generator set, the state analysis module (5) is connected with the intelligent alarm patrol module (6), the intelligent alarm patrol module (6) periodically and circularly checks the operation state of each generator set, and when the abnormal operation condition of the generator set is checked, the state analysis module (5) immediately sends out the alarm signal.
5. The intelligent warning system for the hydropower station generator set operation interval according to claim 1, characterized in that: the alarm classification module (8) divides the alarm signals into a plurality of levels according to the severity of the accident, and the final alarm modes corresponding to the alarm signals of each level are different.
6. The intelligent warning system for the hydropower station generator set operation interval according to claim 1, characterized in that: after receiving the alarm signal, the load alarm unit (3) sends the alarm signal through the message alarm module (3-1), the audio alarm module (3-2) and the warning lamp alarm module (3-3), wherein the message alarm module (3-1) sends message information with different colors according to the level of the alarm signal, the audio alarm module (3-2) sends alarm sounds with different voices according to the level of the alarm signal, and the warning lamp alarm module (3-3) sends alarm lamps with different colors according to the level of the alarm signal.
7. The intelligent warning system for the hydropower station generator set operation interval according to claim 1, characterized in that: the alarm reset unit (4) needs manual reset on site by workers, otherwise, the alarm can be continuously given.
8. The intelligent warning system for the hydropower station generator set operation interval according to claim 1, wherein the system comprises the following steps in operation:
step 1: the load monitoring unit (1) monitors the running load of the hydropower station generator set in real time, and transmits the monitored load to the load checking unit (2) after signal processing;
step 2: the load checking unit (2) judges whether the load belongs to a normal operation interval, if the generator set belongs to an abnormal operation interval, the load checking unit (2) sends out an alarm signal and transmits the alarm signal to a state analysis module (5) in a load alarm system;
step 3: the state analysis module (5) analyzes the running state of the generator set after receiving the alarm signal and transmits the analysis result to the alarm grading module (8);
step 4: the alarm classification module (8) performs classification processing on the alarm signals and transmits the classified alarm signals to the load alarm unit (3);
step 5: the load alarm unit (3) respectively sends out corresponding alarm signals through the message alarm module (3-1), the audio alarm module (3-2) and the warning lamp alarm module (3-3) according to the levels of the alarm signals.
9. The hydropower station generator set operation interval intelligent alarm system operation Step as claimed in claim 9, wherein in Step3, the state analysis module (5) receives an alarm signal sent by the intelligent patrol module (6) in addition to the alarm signal sent by the load check unit (2) in Step2, and the state analysis module (5) is also connected with the wireless transmission module (7) and transmits the alarm signal to a remote monitoring system in real time through the wireless transmission module (7).
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| CN116125880A (en) * | 2023-01-05 | 2023-05-16 | 湖北清江水电开发有限责任公司 | Turbine oil mass monitoring system of hydropower plant and operation mode thereof |
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