JP2000148239A - Plant operation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operation efficiency of a power plant by providing a constitution where a general monitoring device receives the operation report data from a transmission means of a monitoring device placed at the plant and displays the received operation report data. SOLUTION: An image photographed by a monitor camera 11 is compared with a reference image of a normal state that is previously registered by a job site abnormality monitoring device 15 and the difference between both images is analyzed. This analyzing result and the image of the camera 11 are fetched by a unit calculator 5 via the device 15. If an abnormality deciding means 17 decides the abnormality, an abnormal image is sent to a monitoring/ operating device 35 which is placed at central feeding command center via a transmission interface device 37 and then displayed on a display means 29 of the device 35. Thus, the operation efficiency is improved for a power plant.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an operation for monitoring, recording, and controlling a plant such as a thermal power plant.
The present invention relates to a plant operation system for reducing the number of operation workers in a central control room in a plant.

[0002]

2. Description of the Related Art A thermal power plant includes a boiler that generates steam by heating water using coal, oil, or the like as a fuel, a steam turbine that converts the steam generated by the boiler into rotational power, and an electric power generated by the rotational power of the turbine. , A related auxiliary machine, and plant equipment such as other main components, and a control device for monitoring and controlling these plant equipment, and a monitoring control equipment such as a unit computer.

Conventionally, in a normal load zone operation of such a thermal power plant, as shown in FIG. 6, a minimum operation person 3 of a shift length P1, a controller P2, and a site patrol member P3 is installed in a power plant central control room. A person is always stationed and works on instructions, monitoring, recording, and operations.

[0004] For example, the on-site patrol member P3 carries out patrol on a predetermined route at every time determined based on the safety patrol rules in the power plant premises, and the motor-driven pump / fan 1 produces abnormal noise and odor. Leakage / oil leakage from valve 2 of steam / water / oil piping,
The status of the site-installed limit switch 3 and others are visually and tactually checked to check for abnormalities, and that the alarm processing device 4, unit computer 5, and control device 6 installed outside the central control room are abnormal. In charge of confirming the presence of

[0005] Further, the control member P2 is resident near the monitoring and operation control panel 7 installed in the central control room, and monitors the instruments and alarm windows installed on the monitoring and operation control panel 7 and operates the operating equipment in accordance with the status of the plant and the operation. It is implemented according to the instruction of the shift supervisor P1, and is in charge of the maintenance of stable plant operation.

The shift supervisor P1 is resident in the central control room, monitors the entire power generation plant by the monitoring operation control panel 7, and requests the generator output change according to the power demand that changes according to the season and time zone from the central power supply command center. Is received by the telephone 8 from the supervisor P4 working at the central power supply command center, and based on this, an output control instruction is issued to the controller P2. The controller P2 receiving the output control instruction performs the generator output control operation using the operation tool attached to the monitoring operation control panel 7, and maintains the stable power supply operation.

[0007] The supervisor P4 of the central power supply dispatching station monitors the operation data of the thermal power plant with the man-machine interface device 9.

[0008]

Conventionally, in a normal load zone operation of a thermal power plant, a monitoring operation control panel 7 is installed in a central control room in a power plant, and a shift supervisor P1, a control staff P2,
24 due to shift work with on-site patrol member P3 as one group
It was basically time-operated. In recent years, stable operation of the plant with a small number of personnel has become an issue, and measures such as centrally monitoring and operating multiple units in one central control room have been taken, but the reduction in the number of personnel has reached its limit. It has become to.

As described above, according to the prior art, (1) when the shift length P1 is reduced, the reception of the central power supply command and the instruction type bear are eliminated, so that the power output of the generator is not controlled and stable power supply cannot be performed. (2) If the number of control personnel P2 is reduced, confirmation, recording, investigation, creation of operation records,
(3) If the number of on-site patrol personnel P3 is reduced, on-site patrols cannot be made, so that an anomaly can be found until it spreads to an anomaly leading to an alarm display attached to the monitoring and operation control panel 7 installed in the central control room. In other words, there is a problem that even one vacancy can be a factor that hinders driving, such as the possibility of a serious accident.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a plant operation system capable of providing a means for substituting an operator's work, making the operation in a power plant more efficient, and performing a stable operation. The purpose is to do.

[0011]

According to a first aspect of the present invention, there is provided a plant side for capturing process data, video data, and environmental data detected by a plurality of detecting means installed in a plant, and monitoring and controlling plant components. A plant operation system comprising a supervisory control device and a remotely-located general supervisory device that is linked to the plant-side supervisory control device via transmission interface means, wherein the plant-side supervisory control device is a plant plant that is set in advance. An operation report data creating means for collecting the input data required for the operation report and periodically editing the data as operation report data; and an operation report information storage for storing a plurality of operation report data created by the operation report data creation means. Means and the operation report data stored in the operation report information storage means Through the transmission interface unit in a transmission means for transmitting to the supervising monitoring device,
The general monitoring device includes a receiving unit that receives operation report data transmitted from a transmission unit of the plant-side monitoring control device, and a display unit that displays the operation report data received by the receiving unit. I do.

According to the first aspect of the present invention, data necessary for an operation report such as a diary, a weekly report, a monthly report, etc. is automatically collected in a plant-side monitoring control device such as a unit computer, and edited into operation report data. With the provision of the above, it is not necessary to manually monitor and record the operation data of the operation data required for creating an operation report such as an operation log, a weekly report, a monthly report, etc., and the operation report creation operation can be deleted in the plant.

According to a second aspect of the present invention, in the plant operation system according to the first aspect, the general monitoring device requests transmission of the operation report data stored in the operation report information storage device of the plant-side monitoring and control device. Transmission means of the plant-side monitoring and control device, wherein the operation report data specified by the request from the general monitoring device is taken out from the operation report information storage means and transmitted to the general monitoring device. I do.

According to the second aspect of the present invention, operation report data can be obtained as needed from a plant at a remote location such as a central power supply command center or a central control station where a supervisory device is arranged, without requiring human intervention. be able to.

According to a third aspect of the present invention, there is provided a plant-side monitoring and control device which captures process data, video data and environmental data detected by a plurality of detecting means installed in a plant, and monitors and controls plant components. A plant operation system comprising a plant-side supervisory control device and a remotely-located supervisory device linked via a transmission interface means, wherein the plant-side supervisory control device detects a plant abnormality based on each of the input data. Abnormality judging means for judging the content of the abnormality; collecting means for collecting process data, video data, and environmental data related to the content of the abnormality judged by the abnormality judging means; The plant data collected by the collecting means is transmitted to the general monitoring device via the transmission interface means. And a receiving unit for receiving the abnormal content and the plant data transmitted from the transmitting unit of the plant-side monitoring and control device, and transmitting the abnormal content and the plant data received by the receiving unit. Display means for displaying.

According to a third aspect of the present invention, a plant-side monitoring of a unit computer or the like is performed based on video data on plant components, environmental data such as sound, odor, temperature, water leakage, oil leakage, etc. on plant components and process data. The control device determines the details of the abnormality, and transmits the details of the determined abnormality and the data on which the abnormality was determined to the remotely located central control device. Abnormality confirmation work by smell and touch can be eliminated, and the number of on-site patrols can be reduced.

According to a fourth aspect of the present invention, in the plant operation system according to the third aspect, the transmission means of the plant-side monitoring and control device transmits when the abnormality determination means has determined an abnormality content of a predetermined emergency abnormality item. The processing is performed, and the transmission processing is periodically performed except for the case of the abnormality content of the predetermined emergency abnormality item.

According to the fourth aspect of the present invention, when an abnormality needs to be dealt with urgently, abnormality determination data is immediately transmitted from the plant-side monitoring and control device to the overall control device, so that an abnormality of the plant can be generated even in a remote place. Can be quickly dealt with, and stable plant operation can be maintained even if the number of plant personnel is reduced.

According to a fifth aspect of the present invention, there is provided a plant-side monitoring and control device which fetches process data detected by a plurality of detecting means installed in a power plant, monitors and controls plant components, and transmits the plant-side control device. A plant operation system comprising a remotely-located integrated monitoring device linked via an interface means, wherein the plant-side monitoring and control device has an operation pattern of generator output control corresponding to a change in power demand due to a predetermined factor. Operating pattern storage means for storing in advance, and generator output control means for performing generator output control according to the selected operation pattern,
The general monitoring device is characterized by comprising an operation means for making a request to switch the operation pattern or a request to cancel the operation pattern as required.

According to the fifth aspect of the present invention, a generator output changing operation from the monitoring operation control panel which has been conventionally performed in response to a command based on a change in power demand depending on the season and time zone from the central power supply command center is replaced. By registering the operation pattern in advance in a plant-side control device such as a unit computer or a control device, it is possible to automatically perform a generator output control based on a predetermined fluctuation in power demand, and perform a generator output change operation. Is not required, and the necessity of a command from the central power supply command center is eliminated.

According to a sixth aspect of the present invention, there is provided a plant-side monitoring and control device that fetches process data detected by a plurality of detecting means installed in a power plant, monitors and controls plant components, and transmits the plant-side control device. A plant operation system comprising a remotely arranged central monitoring device linked via an interface means, wherein the plant-side monitoring and control device performs averaging of the operation time of multiplexed or multi-line configured plant components. Operating pattern storage means for storing a switching operation pattern in advance, and switching control means for switching the operation target device in accordance with the selected operation pattern, the general monitoring device, if desired, the operation pattern switching request or the operation pattern Operating means for requesting the cancellation of the request.

In the invention of claim 6, the switching of the operation target equipment is automated by the plant side control device such as the unit computer and the control device, thereby eliminating the operation of switching the operation target equipment conventionally performed by the operator. Thus, the burden on the operator can be reduced.

According to a seventh aspect of the present invention, there is provided a plant-side monitoring and control device that fetches process data detected by a plurality of detecting means installed in a power plant, and monitors and controls plant components. A plant operation system comprising a remotely arranged central monitoring device linked via an interface means, wherein the plant-side monitoring and control device stores an operation pattern for switching a used fuel according to a plant state in advance. Means, and switching control means for switching the fuel used in accordance with the selected operation pattern, wherein the general monitoring device includes an operation means for performing a request to switch the operation pattern or a request to cancel the operation pattern as desired. I do.

According to the seventh aspect of the present invention, the load on the operator can be reduced by automating the operation of switching the fuel used in the boiler specific to the thermal power plant by the plant-side control device.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings, taking a power plant of a thermal power plant as an example.

FIG. 1 shows a first embodiment of the plant operation system of the present invention. In FIG. 1, the present embodiment includes a monitoring camera 11 for photographing main equipment constituting a plant, a sensor 13 for detecting an abnormality of on-site equipment, such as a temperature sensor, a water leak sensor, and an oil leak sensor.
The on-site abnormality monitoring device 15 has an on-site abnormality monitoring device 15 for analyzing data of the monitoring camera 11 and the sensor 13 and monitoring for the presence or absence of an abnormality, and means for performing an operation for automatically operating the plant based on the plant state value. Determining means 1 for determining the content of the abnormality based on the data from
7 and a unit computer 5 to which diary information storage means 19 for collecting and storing necessary data as diary information is added.
Alarm processing device 4 having means for recognizing the occurrence of a failure based on a signal of a limit switch 3 that operates when a failure occurs and performing an alarm process, and an alarm data storage unit 21 for storing and managing the contents of an alarm as a processing result. And a generator output control command based on fluctuations in power demand due to predetermined factors such as seasons and time zones, are stored in a pattern in advance, and generator output pattern control means 23 for performing generator output control in accordance with this pattern. A switching pattern for extending the life of the pump / fan 7 is stored in advance, a switching control means 25 for performing switching control of the pump / fan 7 operated according to the switching pattern, and a supplementary operation and fine adjustment when an alarm is generated The control device 6 provided with the automatic adjusting means 27 for automatically performing the control, the image of the monitoring camera 11 and the monitoring information of the power generation plant. Display unit 29, an operation unit 31 for operating the power plant, and a transmission interface unit 33, a central power supply command center installation monitoring and operation device 35 for supervising and monitoring the power plant, a unit computer 5, a control device 6, and an alarm process. It comprises a transmission interface device 37 that controls the device 4 and exchanges data with the central power supply command center installation monitoring / operation device 35.

As described above, in the present embodiment, in order to reduce the number of personnel in the thermal power plant, the monitoring operation control panel installed in the central control room can be deleted, while the power plant can be visually recognized by humans. A surveillance camera 11 to substitute, a temperature sensor to substitute for human hearing, touch, and smell, a water leak sensor,
A sensor 13 such as an oil leak sensor and a field abnormality monitoring device 15 that captures and analyzes data from the monitoring camera 11 and the sensor 13 are installed.

The unit computer 5 which inputs data from the plant and performs an operation for automatically operating the plant is provided with an abnormality determining means 17 for determining the details of the abnormality based on the data from the on-site abnormality monitoring device 15, As an alternative to the data collection work related to the operation log creation by the above, a log information storage means 19 for collecting and storing necessary data as log information from the plant is added.

Further, an alarm processing device 4 which detects a failure based on a signal from the limit switch 3 and performs an alarm process is replaced with a work of manually writing and recording an alarm content by a human.
Alarm data storage means 21 for storing and managing alarm processing results
Is added.

Further, the control device 6 for controlling the plant equipment by a manual equipment operation signal or an automatic operation signal by the unit computer 5 controls the power generator output control corresponding to the power demand fluctuating according to the season and time zone in advance. Generator output pattern control means 23 that performs according to the registered operation pattern, and switching control that performs switching operation for averaging the operation time of the main components such as a motor-driven pump and fan according to a previously registered switching operation pattern. Means 25
And an automatic adjustment means 27 for automatically performing a supplementary operation and a fine adjustment when an alarm occurs.

Further, instead of the monitoring and operation control panel installed in the central control room in the power plant, a transmission interface device 35 for integrally controlling the unit computer 5, the control device 6 and the alarm processing means 4 to perform data transmission with the central power supply command station. Will be installed in the power plant.

On the other hand, a transmission interface means 33 for exchanging data with the transmission interface device 37, instead of the conventional man-machine interface device, is provided at the central power supply command center, and an image of the power plant is provided. A monitoring / operation device 35 having a display means 29 for displaying a screen and a monitoring screen, and an operation means 31 for making various requests to the power plant is installed, so that the power plant can be monitored and remotely operated at the central power supply command center. It is configured to be.

Next, the operation of the present embodiment will be described. The video captured by the monitoring camera 11 is compared with a normal reference video registered in advance by the on-site abnormality monitoring device 15,
An analysis of the video differences is performed.

The unit computer 5 includes the on-site abnormality monitoring device 1
5, the image of the surveillance camera 11 and the analysis result thereof are fetched. To automatically report the occurrence of an error.

The supervisor P4 of the central power supply command center determines the degree of abnormality on the basis of the video screen displayed on the display means 29 of the central power supply command center installation monitoring / operation device 35. Monitoring is continued if it is determined that "water leakage has occurred but there is no problem in operation." If there is a problem in operation, the monitor P4 uses the operation means 31 (man-machine interface operation function) from the central power supply command center installation monitoring / operation device 35 for the motor-driven pump 1 in which the abnormality has occurred. Transmission interface device 3
A stop signal is output to the control device 6 via 7 to stop the motor-driven pump 1.

As a result, in FIG. 6, in the prior art, the on-site patrol member P3 informs the central control room in the power plant of an abnormality detected by visual observation, touch, sound, smell, etc. by telephone or the like, and the control member P2 performs monitoring operation. The degree of abnormality is determined from the display of the instrument and the alarm window of the control panel 7, and substantially the same monitoring and operation can be performed as compared with the case where the stop operation or the like is performed.

When it is difficult to judge the processing only by the video information of the monitoring camera 11, the supervisor P 4 sends the site data from the sensor 13 to the central power supply command center installation monitoring and operating device 35 along the same route as the monitoring camera 11. Capture and display means 2
9 is displayed. By using the site data from the sensor 13 to determine the degree of abnormality in this way, it is possible to cover the five senses of the site patrol member P3 and make a more accurate determination.

The alarm processor 4 receives a signal from the limit switch 3 that operates when a failure occurs, and when the failure is recognized, the alarm data storage means 21 stores the details of the failure. As described above, by automatically storing the details of the failure in the alarm processing device 4 as the alarm data, the task of conventionally writing and recording the details of the alarm when the failure occurs in the power plant controller P2 becomes unnecessary. By extracting, editing, and organizing the data at a later date, it is possible to secure an alarm record equivalent to the presence of the controller P2.

The unit computer 5 constantly monitors data indicating the operating state of the power plant, and collects and stores necessary data as diary information by the diary information storage means 19. As a result, instead of the operation in which the controller P2 conventionally writes and records the operation execution record every day, the data is extracted, edited, and arranged at a later date, so that a daily log, weekly report, monthly report, etc. equivalent to the resident of the controller P2 can be obtained. Operation reports can be created and stored.

In response to a change in power demand depending on the season and time zone, the control device 6 causes the generator output pattern control means 23 to control the output control related equipment in accordance with the generator output control operation pattern stored in advance. Outputs control commands. In this way, by registering and operating the pattern operation program in place of the generator output control operation in response to the generator output change request in the control device 6, the generator output change command from the central power supply command center and the central control in the power plant are performed. The output control operation from the room monitoring operation control panel can be eliminated.

In addition, regarding an emergency stop operation in the event of an emergency such as a fire at the power plant or an operation that cannot be patterned, the central control room in the power plant for monitoring and operating functions is shifted to the central power supply command center, so that the central power supply command is issued. Can be operated from the place via the operating means 31 of the monitoring and operating device 35,
The operation by the controller P2 in the central control room in the power plant can be eliminated.

Further, the control device 6 sets a time for alternately operating the main components such as the motor-driven pump / fan 7 which are multiplexed or provided in a plurality of systems in order to extend the service life. The switching operation pattern to be averaged is stored in advance, and the switching control unit 25 automatically switches the operation target device according to the switching operation pattern. As described above, as a measure for extending the life of the main constituent devices, the switching pattern operation program that is substituted for the operation target device switching operation for averaging the operation time is registered in the control device 6 and operated, whereby the central control in the power plant is performed. The switching operation from the room monitoring and control panel can be eliminated.

Further, based on the data from the alarm processing device 4, the control device 6 automatically controls the supplementary operation or the fine adjustment operation when an alarm is generated by the automatic adjusting means 27. This eliminates the need for a supplementary operation and a fine adjustment operation when an alarm is issued from the monitoring operation control panel of the central control room in the power plant.

Further, by shifting the monitoring and operation functions from the central control room in the power plant to the central power supply command station, the fuel supply operation using the boiler specific to the thermal power plant can be switched from the central power supply command station installation monitoring / operation device 35. In addition, it is possible to eliminate the operation of switching the fuel used in the boiler from the monitoring operation control panel installed in the central control room in the power plant.

Further, by shifting the monitoring and operation functions from the central control room of the power plant to the central power supply command center, the contents which were conventionally communicated from the central control room in the power plant to the central power supply command center at all times are always supplied to the central power supply command center. It is possible to know at the command center, eliminating the need for regular communication.

As described above, in the first embodiment of the present invention, the monitoring by a machine instead of the monitoring of a person at the site, the operation patterning of a control device instead of the operation of a person, the monitoring and operation in a central control room in a power plant. Remote monitoring and operation are being implemented in place of.

As a result, in the case where the operation cannot be continued unless the controller P2 performs the operation in the central control room in the conventional power plant, for example, an abnormality occurs, an emergency operation request, a record is kept, etc. in the normal operation process of the power plant. Also, the operation can be continued by mechanization, patterning, and remote control as described above. Thereby, the number of resident workers in the power plant can be reduced as much as possible.

In the present embodiment, the generator output pattern control means 23 is provided in the control device 6 to control the generator output change in a pattern. Operating means 31 of operating device 35
It is also possible to control the generator output via. In this case, it is possible to easily cope with indefinite factors such as a change in the operation of the power plant due to a sudden increase in power demand.

FIG. 2 shows a second embodiment of the plant operation system according to the present invention. Compared to the first embodiment, the plant operation system is stored in the unit computer 5 and in the log information storage means 19. A logbook automatic generation means 41 for editing data in a logbook format at regular intervals to create a driving logbook is added.

In this embodiment, since the log information in the format of the driving log can be obtained directly from the unit computer 5, the data necessary for creating the driving log can be extracted, edited, and organized. Can be omitted.

The automatic logbook generating means 41 may be provided with a function for periodically creating operation reports such as weekly reports and monthly reports as needed.

FIG. 3 shows a third embodiment of the plant operation system according to the present invention. Compared with the second embodiment, the unit computer 5 has been created by the automatic diary generation means 41. Monitoring of operation log data at the Central Power Distribution Center
A log data automatic transfer unit 43 for periodically transferring to the operation device 35 is added.

In this embodiment, since the operation log data is automatically sent from the unit computer 5 to the central power supply command office, it is possible to save the trouble of going to the power plant when necessary and collecting the operation log data. .

FIG. 4 shows a fourth embodiment of the plant operation system according to the present invention. Compared with the third embodiment, the alarm processor 4 stores alarm data when various failures occur. An automatic alarm data transfer means 45 for automatically transferring the contents of the alarm stored in 21 to the central power supply command center installation monitoring / operation device 35 is added.

In this embodiment, when various failures occur, the contents of the alarm are automatically transmitted from the alarm processing device 4 to the central power supply command station and can be monitored one by one by the monitoring / operation device 35. This eliminates the need to check the alarm on the control panel installed in the room. FIG. 5 shows a fifth embodiment of the power plant operation system of the present invention. In this embodiment, instead of monitoring and operating the plant in the central control room in each thermal power plant, a plurality of power plants are generated. There is a centralized control station that monitors and operates the location in one place.

The present embodiment is different from the first embodiment in that the plant-side monitoring and control device and the transmission interface device 37, which are installed in each power plant, have substantially the same configuration as the first embodiment. And a centralized control center installation monitoring and control device 51 for transmitting and receiving data and a man-machine interface device 9 installed at a central power supply command center, as necessary, while supervising and monitoring a plurality of plants. .

Further, the plant side monitoring and control device of each power plant according to the present embodiment stores a boiler use fuel switching pattern according to the plant state in the control device 6 in comparison with the first embodiment. Fuel switching control means 53 for controlling the switching of the fuel used in the boiler according to this pattern is added.

The central control station installation monitoring / control device 51
Is a general monitoring device having substantially the same function as the central power supply command point installation monitoring / operation device 35 in the first to fourth embodiments, and is capable of monitoring and remotely operating a plurality of power plants. It has display means 55 for displaying images of the monitoring camera 11 of each power plant and plant monitoring information, operating means 57 for operating and operating each power plant, and transmission interface means 59.

Next, the operation of the present embodiment will be described. At each thermal power plant, the on-site abnormality monitoring device 15
When the abnormality determination means 17 of the unit computer 5 determines the content of the abnormality based on the abnormality analysis result from the on-site abnormality monitoring device 15, the unit computer 5
Is transmitted to the centralized control center installation monitoring and control device 51 via the transmission interface device 35, and an abnormality is generated by the monitoring person P5 working at the centralized control center through the display means 55 of the centralized control center installation monitoring and control device 51. Is automatically transmitted.

At this time, the observer P5 determines the degree of abnormality on the video screen of the display means 55, and continues monitoring if there is no problem in driving. On the other hand, if there is a problem in operation, the monitor P5 uses the operating means 57 of the central control station installation monitoring / operation device 51 via the transmission interface device 37 for the plant component in which the abnormality has occurred. And outputs a stop signal to the control device 6.

If it is difficult for the observer P5 of the central control station to judge the processing only by the image of the monitoring camera 11,
Further, site data from the sensor 13 is fetched along the same route as that of the monitoring camera 11 and used as judgment data.

The signal of the limit switch 3 that operates when any failure occurs is subjected to an alarm processing by the alarm processing device 4, and the processed failure content is stored and stored by the alarm data storage means 21 so that it can be taken out at any time. This eliminates the need for writing and recording work when a failure occurs.

In addition, by installing a centralized control station, in which monitoring and operating functions are conventionally concentrated in one central control room in each thermal power plant, regular communication between the central power supply command center and each power plant is established. It is possible to switch to the regular communication between the central power supply command center and the central control station, eliminating the need for communication personnel to each power station.

The unit computer 5 for inputting plant data and performing a control operation for an automatic operation is provided with a function of collecting and storing data necessary for creating an operation log, that is, a log information storage means 19. As a result, operation data required as log information is automatically recorded and stored.
As a result, it is possible to reduce the burden on the operation of creating operation reports such as operation diaries, weekly reports, and monthly reports, which was conventionally performed by the controller of the central control room in the power plant.

Further, with respect to fluctuations in power demand due to seasons and time zones, generator output control is automatically performed by the generator output pattern control means 23 provided in the control device 6 of each power plant. Thereby, the generator output changing operation conventionally performed in the central control room in the power plant by the instruction from the central power supply command center can be eliminated.

For main constituent devices such as motor-driven pumps and fans arranged in a multiplexed or a plurality of series, switching of operation target devices for averaging respective operation times is performed by switching of the control device 6. This is automatically performed by the control means 25. As a result, the switching operation at each power plant, which has been manually performed from the monitoring operation control panel in the central control room, can be eliminated.

In addition, the supplementary operation and the fine adjustment operation at the time of alarm generation, which were conventionally performed in the central control room in the power plant,
This is automatically performed by the automatic adjustment means 27 of the control device 6 of each power plant, whereby the supplementary operation or the fine adjustment operation from the monitoring operation control panel of each power plant can be eliminated.

The switching of the fuel used by the boiler specific to the thermal power plant is automatically performed by the fuel switching control means 53 of the control device 6 of each power plant in accordance with the boiler used fuel switching pattern according to the plant state. This eliminates the need for the manual operation of switching the boiler-use fuel, which has been conventionally performed in each power plant.

In the case of an emergency stop operation in the event of an emergency such as a fire at a power plant, or other operations that cannot be patterned, the monitoring and operating functions of a plurality of power plants are centralized in one place from the central control room in each power plant. By installing the centralized control station, the centralized control station installation monitoring / operation device 51 can be operated via the operating means 57, and the operation by the control panel of the central control room in each power plant can be eliminated.

As described above, in the fifth embodiment of the present invention, similarly to the first to fourth embodiments, the monitoring by a machine instead of the monitoring of a person at the site and the operation patterning of a control device instead of the operation of a person are performed. Also, remote monitoring and operation are being implemented instead of monitoring and operation in the central control room in the power plant.

As a result, in the normal operation process of the thermal power plant, if the operation cannot be continued unless the control personnel P2 performs the operation in the central control room in the conventional power plant, for example, abnormality occurrence, emergency operation request, record keeping, etc. In this case, the operation can be continued by mechanization, patterning, and remote control as described above, and the necessity of the presence of an operator in the power plant can be further reduced.

In the present embodiment, the generator output pattern control means 23 is provided in the control device 6 to control the generator output change in a pattern. Operating means 5 of operating device 51
7, the generator output control operation may be performed.
In this case, it is possible to easily cope with indefinite factors such as a change in the operation of the power plant due to a sudden increase in power demand.

Also, in the present embodiment, the second to fourth
As shown in the embodiment, the automatic log generation means 41 is added, and further, the operation log data generated by the automatic log generation means 41 is automatically transferred to the central control center installation monitoring / operation device 51. The addition of the transfer means 43 and the addition of the automatic alarm data transfer means 45 for automatically transferring the contents of the alarm stored in the alarm data storage means 21 to the central control station installation monitoring / operation device 51 when various failures occur. Therefore, the work by humans can be reduced.

[0074]

As described above, according to the present invention, it is possible to satisfactorily continue the operation of the power plant even if the number of personnel in the plant is reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a power plant operation system according to the present invention.

FIG. 2 is a block diagram illustrating a power plant operation system according to a second embodiment of the present invention.

FIG. 3 is a block diagram illustrating a power plant operation system according to a third embodiment of the present invention.

FIG. 4 is a block diagram showing a fourth embodiment of the power plant operation system according to the present invention.

FIG. 5 is a block diagram illustrating a power plant operation system according to a fifth embodiment of the present invention.

FIG. 6 is a block diagram showing a conventional power plant operation system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pump fan 2 ... Valve 3 ... Limit switch 4 ... Alarm processing device 5 ... Unit computer 6 ... Control device 7 ... Monitoring operation control panel 11 ... Monitoring Camera 13 Sensor 15 On-site abnormality monitoring device 35 Central power supply command center installation monitoring / operation device 37 Transmission interface device 51 Central control center installation monitoring / control device P1 Shift supervisor P2: Controller P3: On-site patrol staff P4: Central power dispatching station supervisor P5: Central control station supervisor

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazuyuki Fujimoto 1 Toshiba-cho, Fuchu-shi, Tokyo F-term in the Fuchu Plant of Toshiba Corporation 5B045 AA05 BB47 GG06 GG09 5H223 AA02 CC08 DD03 DD07 DD09 EE06 EE30 9A001 BB04 DD07 JJ61 JZ45 KZ55

Claims (7)

[Claims] 1. A plant-side monitoring and control device that captures process data, video data, and environmental data detected by a plurality of detection units installed in a plant, and monitors and controls plant components. A plant operation system comprising a remote monitoring device and a remote monitoring device linked via a transmission interface means, wherein the plant-side monitoring and control device transmits the input data necessary for a preset plant operation report. An operation report data creation unit that collects and regularly edits the operation report data, an operation report information storage unit that saves a plurality of operation report data created by the operation report data creation unit, and an operation report information storage unit that saves the operation report data. The transmission interface means for periodically transmitting the operation report data Transmitting means for transmitting to the general monitoring device via the receiving device, the general monitoring device receiving operation report data transmitted from the transmitting means of the plant-side monitoring and control device, and receiving by the receiving means Display means for displaying operation report data. 2. The plant operation system according to claim 1, wherein the overall monitoring device includes a request unit that requests transmission of operation report data stored in an operation report information storage unit of the plant-side monitoring and control device, The plant operation system, wherein the transmission means of the plant-side monitoring and control device extracts operation report data designated by a request from the general monitoring device from the operation report information storage means and transmits the operation report data to the general monitoring device. . 3. A plant-side supervisory control device that captures process data, video data, and environmental data detected by a plurality of detecting means installed in a plant, and monitors and controls plant components. A plant operation system comprising a remote monitoring device and a remote monitoring device linked via a transmission interface means, wherein the plant-side monitoring and control device detects a plant error based on the input data and determines the content of the error. Collecting means for collecting process data, video data, and environmental data related to the content of the abnormality determined by the abnormality determining means; and collecting the content of the abnormality determined by the abnormality determining means and the collecting means. Transmission means for transmitting plant data to the overall monitoring device via the transmission interface means The general monitoring device includes: a receiving unit that receives the details of the abnormality and the plant data transmitted from the transmitting unit of the plant-side monitoring control device; and a display unit that displays the details of the abnormality and the plant data that are received by the receiving unit. And a plant operation system. 4. The plant operation system according to claim 3, wherein the transmission means of the plant-side monitoring and control device performs transmission processing when the abnormality determination means determines an abnormality content of a predetermined emergency abnormality item, A plant operation system wherein transmission processing is periodically performed except for the case of an abnormality content of a predetermined emergency abnormality item. 5. A plant-side monitoring and control device that fetches process data detected by a plurality of detecting means installed in a power plant and monitors and controls plant components, and a plant-side control device and transmission interface means. A plant operation system comprising a remote monitoring device and an integrated monitoring device, wherein the plant-side monitoring and control device is configured to previously store an operation pattern of generator output control corresponding to a change in power demand due to a predetermined factor. Pattern storage means, and generator output control means for performing generator output control according to the selected operation pattern, wherein the general monitoring device is an operation means for requesting the operation pattern switching request or the operation pattern cancellation request as desired. A plant operation system comprising: 6. A plant-side monitoring and control device that fetches process data detected by a plurality of detecting means installed in a power plant and monitors and controls plant components, and via the plant-side control device and transmission interface means. A plant operation system comprising an integrated remote monitoring device that is linked, wherein the plant-side monitoring and control device is a switching operation pattern for averaging the operation time of multiplexed or multiple-system plant component devices. And a switching control means for switching the operation target device according to the selected operation pattern, wherein the general monitoring device issues a request to switch the operation pattern or a request to cancel the operation pattern as desired. A plant operation system comprising operating means. 7. A plant-side monitoring and control device that fetches process data detected by a plurality of detecting means installed in a power plant and monitors and controls plant components, and a plant-side control device and a transmission interface means. A plant operation system including a remote monitoring integrated monitoring device to be linked, wherein the plant-side monitoring and control device includes an operation pattern storage unit that stores in advance an operation pattern of fuel switching according to a plant state. Switching control means for switching the fuel used in accordance with the operating pattern, wherein the general monitoring device includes an operating means for making a request to switch the operating pattern or a request to cancel the operating pattern as desired.