JPH11296206A - Power generating operation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease the number of operators for respective units by generally monitoring and controlling the respective units at a centralized control room or operation management center by sending items which are important to monitor and control among the plant states of the respective units to the centralized control room or operation management center. SOLUTION: A unit computer 20 which monitors and controls a unit 70 fetches process data on the temperature, the on/off state of a valve, etc., of a plant 14 through a controller 11 or process input device 12. The inputted data are transmitted to the centralized control room or operation management center 80 which controls units or a power station. At the centralized control room or operation management center 80, a general data communication part 31 of a general computer 30 receives the sent data and saves them in a data storage part 33. When a general display unit makes a request to display the data of the respective units, the data of the corresponding units stored in the data storage part 33 are taken out and displayed on the general display unit 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of monitoring and controlling a power plant, which relates to a power plant in which the number of operators during normal operation of each power generation unit is reduced or unmanned operation without the need for operators is enabled.

[0002]

2. Description of the Related Art FIG. 10 shows an outline of monitoring and control in one unit of a conventional thermal power plant. In FIG. 10, monitoring and monitoring of one unit 222 are performed.
The computer 220 that controls the control inputs a process state from the control device 11 or the process input device 12 at its own processing cycle or at an input cycle predetermined for each process amount, and the monitoring control unit 221 performs monitoring and control. We are implementing.

For example, analog and digital process quantities are input, and the data processed by the monitoring control unit 221 is displayed on the display device 15 for monitoring, or an alarm state is set in the process quantities. For those that are, a message to the effect that an alarm state is present is output to the display device 15 and the printer 16.

Further, data relating to the operation results, performance, and management of the own unit 222 is processed and calculated based on the process amount as a log item of the power generation operation log, and then the data is transferred to the printer 16.
And output to the display device 15.

[0005] On the other hand, in the control, the supervisory control unit 221 transmits necessary data for automatic operation of the plant according to predetermined processing in the control unit 1 based on the process amount.
1 and the process output device 19.

In operation of the unit 222,
The operator receives a power generation output request of the own unit 222 according to the power demand that changes according to the season and time zone from the central power supply command center 900 by telephone, and controls the output of the own unit 222.

[0007]

Conventionally, in the normal operation of a power plant, monitoring and control of each unit are performed by a central control room, including a shift supervisor, and a 24-hour operator who works in shifts with several people as one group. Resident was basic. In recent years, stable operation of the plant by a small number of operators has been an issue, but the plant status of each unit was output to the control unit, computer, and control panel of each unit, and it was necessary to monitor and control each unit Therefore, the reduction of the number of operators was also at a limit.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. An important item for monitoring / control from the plant state of each unit is a central control room for monitoring / controlling a plurality of units or an operation management. By transmitting the information to the center, monitoring and control of each unit is normally realized in a central control room or an operation management center, and a power plant capable of reducing the number of operators of each unit is provided.

[0009]

According to the first aspect of the present invention, there is provided a central control room for operating and monitoring one unit of a conventional power plant, and a plurality of units in the power plant separately from the central control room. In a power generation plant provided with a central control room capable of performing operation operation or monitoring, or an operation management center capable of performing operation operation or monitoring of a plurality of power plants including a plurality of units, provided in units of units. In the unit computer, a data communication unit that transmits the fetched data at a period of fetching data from the control device and the process input device to the central computer provided in the central control room or operation management center, and from the respective units to the central computer A data storage unit for storing received data, and a data storage unit when a display request for data of a unit is received from the display device. The unit has a general output unit that retrieves the data of the corresponding unit from the unit and displays the data of the requested unit on the display device.The data of each unit is monitored in the central control room or operation management center. This is a power generation operation system that enables an emergency stop device from a control room or an operation management center to emergency stop an abnormal unit, thereby reducing the number of operators of each unit during normal operation.

According to the first aspect of the present invention, there is provided a central control room for operating and monitoring one unit of a conventional power plant, and operating or monitoring a plurality of units in the power plant separately from the central control room. Central control room, which can do
Alternatively, in a power plant having an operation management center capable of operating or monitoring a plurality of power plants including a plurality of units, a data communication unit in a unit computer provided for each unit includes a control device and a process. In the cycle of taking in data from the input device, the taken data is transmitted to the data communication unit of the central computer provided in the central control room or the operation management center.

In the central computer, the received data is stored in a data storage unit, and when a display request for data of a certain unit is issued from the display device, the central output unit outputs the data of the corresponding unit from the data of each unit. The data of the requested unit is taken out and displayed on the display device.

Thus, the status of each unit can be monitored in the central control room or the operation management center.
This is a power generation operation system that enables an emergency stop of a unit having an abnormality, thereby reducing the number of operators of each unit during normal operation.

According to a second aspect of the present invention, in the power generating operation system according to the first aspect, when the data communication section reaches a predetermined cycle, the data is taken in at that time, separately from a cycle of taking in data from the control device and the process input device. By transmitting the data, when the data taken in the cycle of taking data from the control device and the process input device enters the alarm state, and when the state returns from the alarm state to the normal state, by transmitting the alarm information to the general computer, This is a reduction in the amount of transmission data between the central computer and the unit computers.

According to a second aspect of the present invention, in the power generation operation system according to the first aspect, the timing at which the data communication section in the unit computer transmits data to the supervising computer is changed.

In other words, in the data communication unit of the present invention, when a certain period is reached, the data taken in at that time is transmitted separately from the period of taking data from the control device and the process input device, and the control device And transmitting alarm information to the general computer when the data fetched in the cycle of fetching data from the process input device enters an alarm state and when the data returns from the alarm state to the normal state.

The central computer receives the data from the unit computer by the unit data communication section, and the subsequent processing is described in claim 1.
Is the same as This is a power generation operation system capable of monitoring the state of each unit and reducing the number of operators of each unit during normal operation.

According to a third aspect of the present invention, in the power plant according to the first aspect, an important alarm item storage unit in which an important alarm item is stored in the unit computer, and an alarm process for determining whether the important alarm item is in an alarm state. A central control room or an operation management center monitors only important alarm items of each unit.

According to a third aspect of the present invention, in the power plant according to the first aspect, the unit computer captures data from the control device and the process input device, and the alarm processing unit stores the important alarm in the important alarm item storage unit. The item is taken out and it is determined whether or not the important alarm item is in the alarm state.

The alarm processing unit is connected to the important alarm item storage unit via the data communication unit as important alarm information when the important alarm item stored in the important alarm item storage unit enters the alarm state and when the alarm state returns to the normal state. Send it to the controlling computer.

The central computer receives important alarm information from the unit computer, and displays the important alarm information on the display device via the general output unit so that important alarms relating to the operation of each unit can be sent to the central control room or the operation management center. A power generation operation system that can be monitored and, if necessary, the emergency stop device from the central control room or operation management center allows emergency stop of abnormal units, reducing the number of operators of each unit during normal operation It is.

According to a fourth aspect of the present invention, an operation state determining unit for determining whether or not its own unit is performing a start or stop operation is added to the unit computer of the power plant according to the third aspect. An important alarm item is transmitted to the general computer during operation, and the plant data is transmitted to the general computer as it is, except when the start / stop operation is being performed.

According to a fourth aspect of the present invention, in the power plant according to the first aspect, the operating state determination unit of the unit computer determines whether its own unit is in a start or stop operation, and notifies the data transmission unit of the determination result. I do.

On the other hand, in the unit computer, data is fetched from the control device and the process input device, an alarm processing unit performs an alarm judgment on the fetched data, and an important alarm item stored in the important alarm item storage unit is an alarm. When the state is changed, and when the state returns from the alarm state to the normal state, the data communication unit is notified as important alarm information.

In the data communication unit, when the unit is in the start or stop operation, the important alarm information notified from the alarm processing unit is provided.
The unit computer transmits data taken from the control device and the process input device to the supervising computer.

The central computer receives data from the unit computer or important alarm information and displays it on the display device via the display unit, so that each unit can be started or stopped in the central control room or the operation management center. In the case of, the operator is also on standby at the unit side, so only important items are monitored, and when the operation is not in the start / stop operation, the detailed operation status can be grasped. Alternatively, a power generation operation system in which an abnormal stop can be emergency-stopped from an operation management center by an emergency stop device to reduce the number of operators of each unit during normal operation.

According to a fifth aspect of the present invention, the function of the data communication section of the unit computer constituting the power generation operation system of the fourth aspect is changed. In some cases, apart from the period in which the unit computer takes in from the control device and the process input device, when a certain period has been reached, the data taken in at that time is transmitted to the central computer.

According to a fifth aspect of the present invention, the function of the data communication section of the unit computer constituting the power generation operation system of the fourth aspect is changed.
When the unit computer is not in a start or stop operation, the unit computer sends the data taken at that time to the general computer when a certain period is reached, independent of the period taken by the unit computer from the control device and the process input device. This is to reduce the amount of transmission data between the PC and the central computer.

According to a sixth aspect of the present invention, the function of the data communication unit of the unit computer constituting the power generation operation system according to the fourth aspect is changed. At the time, an important alarm item is transmitted, and when the start / stop operation is being performed, the unit computer transmits data taken from the control device and the process input device to the supervising computer.

The invention according to claim 6 has the same function except for the data communication unit of the unit computer constituting the power generation operation system according to claim 4, but in the data communication unit, the unit is started or stopped. When the operation is not being performed, the important alarm information notified from the alarm processing unit is transmitted. When the start / stop operation is being performed, the unit computer transmits data taken from the control device and the process input device to the general computer. .

The central computer receives data from the unit computer or important alarm information and displays it on the display device via the display unit, so that the unit usually does not have a monitoring / operator in the central control room of the unit. -Monitor only important items during non-stop operation, and monitor the details of the unit in the central control room or operation management center during start / stop operation, and operate each unit during normal operation. This is a power generation operation system that can reduce the number of workers.

According to a seventh aspect of the present invention, the function of the data communication unit of the unit computer constituting the power generation operation system according to the sixth aspect is changed. Is to transmit the data taken in at that time to the general computer when a certain period is reached, separately from the period taken by the unit computer from the control device and the process input device.

According to a seventh aspect of the present invention, the function of the data communication section of the unit computer constituting the power generation operation system of the sixth aspect is changed.
When the unit is in start or stop operation, apart from the period that the unit computer takes in from the control device and the process input device, when a certain period has been reached, the data taken in at that time is sent to the general computer, and the unit computer This is to reduce the amount of transmission data between the central computers.

According to an eighth aspect of the present invention, in the power plant according to the first aspect, a performance calculator for calculating performance data relating to the operation results, performance, and management of the own unit based on data taken by the unit computer into the unit computer. A normal value storage unit that stores the value of the performance data when the plant is normal, a performance judgment unit that compares the calculation result with the normal value to determine an abnormality, and a data communication that sends the abnormal data to the central computer. And a central control room or an operation management center so that performance data relating to operation results, performance, and management of each unit can be monitored.

According to the invention of claim 8, in the power plant according to claim 1, the unit computer fetches data from the control device and the process input device, and based on the fetched data, the performance calculation section calculates the operation result of the own unit. It calculates performance data related to performance and management, and sends the calculation result to the performance determination unit.

The performance judgment unit retrieves the value of the performance data when the plant is normal from the normal value storage unit, compares it with the current performance data transmitted from the performance judgment unit, and determines whether the data relating to the performance is normal. judge. When it is determined to be abnormal,
The abnormal data is transmitted to the data communication unit, and the data communication unit transmits the abnormal information to the management unit of the performance data of the own unit and the general computer that monitors and controls a plurality of units or a plurality of power plants.

Thus, when there is an abnormality in the performance data of each unit, the abnormality can be grasped in the central control room or the operation management center, and if necessary, the abnormality can be detected by the emergency stop device from the central control room or the operation management center. This is a power generation operation system capable of urgently stopping a certain unit, thereby reducing the number of operators of each unit during normal operation.

According to a ninth aspect of the present invention, there is provided a data collection device for periodically collecting on-site data such as sound, video, temperature, etc. of equipment and devices of the own unit at a site of a plant, and collecting data on a normal time of the on-site data. By comparing the stored steady state storage device with the on-site data and the data at the time of normal operation, it is determined whether there is any abnormality in the on-site facilities and equipment, and if there is an abnormality, the abnormality data is sent to the unit computer. Equipped with a judgment device and a data communication unit that sends abnormal data to the central computer when there is an abnormality.The central control room or operation management center monitors the equipment and equipment of each unit for abnormalities, and if necessary, centrally controls An emergency stop device can be used to stop an abnormal unit from the room or the operation management center.

According to a ninth aspect of the present invention, in a power plant such as a thermal power plant and a nuclear power plant, a data collection device periodically records on-site data such as sound, video, temperature and the like of equipment and devices of each unit at a plant site. Collect and send the collected data to the abnormality determination device of the on-site abnormality monitoring device.

The abnormality judging device compares the received site data with the site data taken out of the steady state storage device at normal time to judge whether or not there is any abnormality in the on-site equipment / equipment. If there is an abnormality in the on-site equipment / equipment, the abnormality determination device transmits the abnormality information to the unit computer which monitors and controls one unit.

In the unit computer, the data communication section notifies the received abnormality information to the general computer which monitors and controls a plurality of units or a plurality of power plants. As a result, the central computer can determine whether there is any abnormality in the equipment and devices of each unit.If necessary, the centralized control room or operation management center can use the emergency stop device to emergencyly stop the abnormal unit. This is a power generation operation system capable of reducing the number of operators of each unit during normal operation.

[0041]

FIG. 1 shows a first embodiment of the present invention. The unit computer 20 that supervises and controls one unit 70 of the power plant fetches process data such as temperature, diversion, and valve opening / closing status in the plant 14 via the control device 11 or the process input device 12.

The acquired data is output as a message from the output unit 22 to the printer 16 and the display device 15 when an alarm is issued and when the alarm data is returned from the alarm state. In the cycle taken in by 21, the data is transmitted to the central control room or the operation management center 80 which manages a plurality of units or a plurality of power plants.

In the central control room or operation management center 80, the transmitted data is received by the central data communication unit 31 of the central computer 30 and stored in the data storage unit 33. On the other hand, when there is a display request of data of each unit from the general display device 40, the general output unit 32 extracts data of the corresponding unit from the data of each unit stored in the data storage unit 33, and performs general display. It is displayed on the device 40.

Here, the detailed processing of the central computer 30 will be described with reference to FIG. When there is a display request from the general display device 40, the general display device 40 notifies the general output unit 32 of the selected unit number u.

The general output section 32 retrieves the corresponding data from the data storage section 33 based on the unit number u, and the contents of the data storage section 33 are stored in advance in units of each unit, and the unit number u If is specified, the required data can be extracted.

For example, when there is a request from the general display device 40 to display the system diagram of the unit number 2, the general output unit 32 transmits the fixed information g of the system diagram designated by the unit number 2 from the data storage unit 33. Data d to be displayed in the system diagram
The system diagram and data of the requested unit number 2 can be displayed by taking out and displaying it on the general display device 40.

As a result, the operation state of each unit can be monitored in the central control room or the operation management center 80. As a result, if an abnormality that hinders the operation of the unit occurs, an emergency stop button or a man-machine interface function is provided. A plant stop signal is transmitted to the control device 11 of the unit by the stop device 99, so that an emergency stop can be performed. With the power generation operation system, the number of operators of each unit can be reduced during normal operation. is there.

Next, in the second embodiment, in the power generation operation system of the first embodiment, the timing at which the data communication section 21 in the unit computer 20 transmits data to the central computer 30 is changed. Things.

That is, in the data communication unit 21 of the present embodiment, when a certain period is reached, for example, when the period for fetching data is 200 ms, separately from the period for fetching data from the control device 11 and the process input device 12. , 3
The data is transmitted to the central computer 30 in a cycle of 0 seconds.

However, in this case, there is a possibility that an abnormality may occur in the plant within 30 seconds.
1 determines whether or not the data acquired in the cycle of acquiring data from the control device 11 and the process input device 12 is an alarm, and when the data is in an alarm state and when the data is returned from the alarm state to a normal state, the data is determined. Only the alarm information is transmitted to the central computer 30 in the fetched cycle.

FIG. 3 shows that the data communication unit 21 is
Shows an example of transmission timing and data. As described above, the amount of data transmitted from the unit computer 20 to the supervising computer 30 is small, important information can be transmitted in a timely manner, and the status of each unit can be monitored. This is a power generation operation system that includes the stop device 99 and enables the number of operators of each unit to be reduced during normal operation.

Next, the third embodiment differs from the first embodiment in that some functions of the unit computer 20 and the general computer 30 are changed, and will be described with reference to FIG. An alarm processing unit 25 newly provided in the unit computer 20 determines an alarm state of data taken from the control device 11 and the process input device 12.

Here, the alarm processing unit 25 determines whether the item stored in the important alarm item storage unit 26 has changed in the alarm state, that is, when the state changes from the normal state to the alarm state, or when the alarm state changes to the normal state. When returning to the state, alarm information is transmitted to the data communication unit 21.

Details will be described with reference to FIG. The alarm processing unit 25 stores the points a,
The alarm determination is sequentially performed for b, c,..., for example, when it is determined that the point a is in the alarm state, it is determined whether the point a is registered in the important alarm item storage unit 26 as an important alarm item.

In the example of FIG. 5, since the point a is not registered, the information that the point a has become an alarm is not notified to the data communication section 21. Next, determination is made for point b. Since point b has no change in the alarm state, it does not notify the data communication unit 21 either.

According to the determination result of the point c, since the point c is in the alarm state, when the important alarm item is taken out from the important alarm item storage unit 26 and compared, the point c is the important alarm item. The alarm information indicating that an alarm has occurred is transmitted to the data communication unit 21, and the data communication unit 21 transmits the transmitted alarm information to the central computer 30.

In the central computer 30, the central data communication unit 3
1 receives the alarm information and outputs to the general printer 50 and the general display device 40 via the general output unit 32 that the point c has become an alarm.

As described above, the central computer 30 can monitor an important alarm relating to the operation of each unit. In addition, by having the emergency stop device 99 equivalent to the first embodiment, the operation of each unit during normal operation can be monitored. This is a power generation operation system that can reduce the number of workers.

Next, a fourth embodiment is obtained by adding an operating state determination unit 41 to the first and third embodiments, and will be described with reference to FIG. As described in the third embodiment, the alarm processing unit 25 transmits the alarm information to the data communication unit 21 only when the alarm state of the important alarm item changes.

The operating state determining unit 41 determines whether its own unit is performing a start operation or a stop operation, and notifies the data communication unit 21 of the determination result as an operating state. The data communication unit 21 transmits the alarm information of the important alarm item received from the alarm processing unit 25 to the central computer 30 only when the unit is being started or stopped, based on the operation state notified from the operation state determination unit 41.

When the unit is not in a start or stop operation, the acquired data is transmitted to the central computer 30 at a cycle in which the unit computer 20 has acquired the data, as in the first embodiment.

On the other hand, the supervisory computer 30 outputs important alarm information from the supervisory output unit 32 to the supervisory display device 40 and the supervisory printer 50 when the supervisory data communication unit 31 is operating the unit for starting or stopping.

In the case other than the start or stop operation,
As in the first embodiment, the data of each unit is stored in the data storage unit 33, and the data of the requested unit is transmitted from the general output unit 32 to the general display device 40 or the printer 50.
Output to

As described above, in the central computer 30, when the unit is being started or stopped, the details are monitored on the unit side, so that only important alarms are grasped, and the number of operators on the unit side is reduced during normal operation. You can monitor in detail for.

Further, the power generation operation system has an emergency stop device 99 equivalent to that of the first embodiment, thereby enabling the number of operators of each unit to be reduced during normal operation. Next, in the fifth embodiment, the data communication unit 2 of the unit computer 20 configuring the power generation operation system according to the fourth embodiment will be described.
This is a modification of the function of (1).

That is, in the data communication section 21, when the unit 70 is not in the start or stop operation, the unit computer 20 operates the control device 11 and the process input device 1
When a certain period is reached, for example, when the period for taking in data is 200 ms, apart from the period for taking in data from 2, the data that has been taken in at that time is transmitted to the general computer 30 in a 30-second period, and the data is taken into account at the taken-in period. Computer 30
In this embodiment, the amount of data to be transmitted is reduced as compared with the fourth embodiment.

Next, the sixth embodiment differs from the fourth embodiment in the function of the data communication unit 21. That is, in the data communication unit 21 in this section,
When the unit is in the start or stop operation, as in the first embodiment, the unit computer 20 transmits the fetched data to the central computer 30 in the cycle of fetching the data. The warning information of the important warning item received from the processing unit 25 is transmitted to the central computer 30.

According to the present embodiment, when the unit is in the steady operation, the status of the unit can be confirmed by monitoring the important alarm, and the details of the unit can be monitored during the start or stop operation. As in the case of the above, the number of operators on the unit side can be reduced.

Next, the invention of the seventh embodiment is described in the sixth embodiment.
The function of the data communication unit 21 of the unit computer 20 constituting the power generation operation system of the embodiment is changed. That is, in the data communication unit 21, when the unit 70 is in the start or stop operation operation, when the unit computer 20 reaches a certain period apart from the period taken in from the control device 11 and the process input device 12, for example, data is taken in If the cycle is a 200 ms cycle, the data captured at that time is transmitted to the general computer 30 in a 30 second cycle,
In this embodiment, the transmission data amount is reduced as compared with the sixth embodiment in which the data is transmitted to the central computer 30 in the fetched cycle.

Next, the invention of the eighth embodiment has a different function in the unit computer in the invention of the third embodiment, and will be described with reference to FIG. The unit computer 20 periodically controls the control device 11 and the process input device 1.
2, the performance calculation unit 27 calculates items related to performance such as power generation efficiency and operation results of the plant, so-called log items, based on the received data.

After the calculation, the performance calculation unit 27 transmits the calculation result to the performance judgment unit 28, and the performance judgment unit 28 calculates the calculation result and the normal state of each log item stored in the normal value storage unit 29. Are taken out of the normal value storage unit 29 and compared.

When the calculation result exceeds the range of the value retrieved from the normal value storage unit 29, it is determined that the log item is abnormal, and the calculation result is transmitted to the data communication unit 21. The data communication unit 21 transmits the abnormal calculation result to the general computer 30, and the general data communication unit 31 of the general computer 30 transmits the received content to the general display device 40 and the general printer 50 via the general output unit 32. Output.

FIG. 8 shows a detailed example of the unit computer 20. For example, the item calculated by the performance calculator 27 is a calculation formula of a = (b + c + d) / 3, and the process data Where b = 10 and c = 1
If 1, d = 12, then a = 11.

The calculation result of a is sent to the performance judgment unit 28,
The performance determination unit 28 stores the value of “a” in the normal state in the normal value storage unit 2.
Remove from 9. Here, since the normal value stored in the normal value storage unit 29 is 8 <a <10, it is determined that the calculation result of a is abnormal, and the information of a is transmitted to the data communication unit 2.
1 will be sent.

As described above, the supervising computer 30 can monitor the performance data which greatly affects the operation of each unit. In addition, by having the emergency stop device 99 equivalent to that of the first embodiment, each unit can be monitored during normal operation. The number of operators can be reduced.

Next, a ninth embodiment will be described with reference to FIG. A sound data collecting device 73 that collects the sound of the site at a main location of the site of the plant 14 of one unit.
A video data collection device 74 for collecting video data,
A data collection device 77 having a plurality of temperature data collection devices 75 for collecting temperature data is installed.

The data collected by each collection device is sent to the abnormality determination device 71, and the abnormality determination device 71 compares the transmitted site data with the values in the normal state of each site data extracted from the steady state storage device 72. To determine if there is any abnormality in the collected data.

If the result of the determination indicates that there is an abnormality, the abnormality information is transmitted to the data communication section 21 of the unit computer 20 which supervises and controls one unit 70, and the data communication section 21 transmits the data to a plurality of units or a plurality of power generation units. It is transmitted to the central control room or the central computer 30 of the operation management center 80 for managing the office.

In the central computer 30, the central data communication unit 31
Receives the abnormality information and outputs the abnormality information to the general display device 40 and the general printer 50 via the general output unit 32.
Here, the sound data collection device 73 collects sound around the installation location using a microphone or the like, and the video data collection device 74 collects surrounding video data using a video camera.

The temperature data collecting device 75 collects the surrounding temperature using a temperature sensor or the like. On the other hand, the abnormality determination device 71 compares each of the transmitted site data with the value at the time of the steady state, and compares the sound with the steady state to determine whether there is an abnormal sound or not. Check whether there is any image pattern different from the normal state, such as smoke, water, oil, or steam leakage, and check whether the temperature has risen due to fire or abnormal equipment.

As described above, the on-site situation of each unit can be monitored in the central control room or the operation management center 80.
By having the emergency stop device 99 equivalent to that of the first embodiment, it is possible to provide a power generation operation system capable of reducing the number of operators of each unit during normal operation.

[0082]

As described above, according to the present invention, the plant data of each unit is transmitted to the central computer provided in the operation management center, and the unit can be monitored by the central computer. Each unit requires three to five operators, but the operation management center can monitor multiple units at once, so the number of units can be reduced or unit operation can be unmanned Becomes

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a power generation operation system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing an example of processing of a central computer.

FIG. 3 is a diagram showing an example of data transmitted by the data communication unit of the unit computer to the supervising computer and an example of transmission timing;

FIG. 4 is a configuration diagram of a power generation operation system according to a third embodiment of the present invention.

FIG. 5 is a block diagram showing an example of processing of an alarm processing unit of the unit computer.

FIG. 6 is a configuration diagram of a power generation operation system according to a fourth embodiment of the present invention.

FIG. 7 is a configuration diagram of a power generation operation system according to an eighth embodiment of the present invention.

FIG. 8 is a diagram illustrating an example of processing of a performance calculation unit and a performance determination unit of the unit computer.

FIG. 9 is a configuration diagram of a power generation operation system according to a ninth embodiment of the present invention.

FIG. 10 is a configuration diagram showing an example of monitoring in a conventional power plant.

[Explanation of symbols]

11 control device, 12 process input device, 13 control panel, 14 plant, 15 display device, 16 printer, 19 process output device, 20, 220 unit calculator, 21 data communication unit, 22 Output unit, 25 ... Alarm processing unit, 26 ... Important alarm item storage unit, 27 ... Performance calculation unit, 28 ... Performance judgment unit, 29 ... Normal value storage unit, 30 ... General computer (general operation management device), 31 ... General Data communication unit, 32: general output unit, 33: data storage unit, 40: general display unit, 41: operation state determination unit, 50: general printer, 70, 222 unit, 71: abnormality determination unit, 7
2 ... steady state storage unit, 73 ... sound data collection device, 74 ...
Image data collecting device, 75 ... Temperature data collecting device, 79
... on-site abnormality monitoring device, 80 ... operation management center (central control room), 90, 900 ... central power supply command office, 99 ... emergency stop device, 221 ... monitoring control unit.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code Fig 21C 17/00 A

Claims (9)

[Claims] Claims: 1. In a thermal or nuclear power plant,
A central control room for operating and monitoring one unit of the power plant, and a centralized control room or operation management center for operating or monitoring multiple units or multiple power plants separately from the central control room In a power plant provided with a unit computer, which supervises and controls one unit, a supervising computer that supervises and controls a plurality of units or a plurality of power plants, and the supervising computer that processes data captured by the unit computer. A data communication unit for transmitting to the general computer, a general output unit for extracting data of the unit requested to be displayed from the data received from each unit by the general computer, and displaying the data of the requested unit, A centralized control room or operation management center equipped with an emergency stop device for each unit, Temu. 2. The power generation operation system according to claim 1, wherein the data communication unit of the unit computer transmits data to the general computer at a fixed period, and an alarm is given to data taken by the unit computer itself. A power generation operation system that transmits the alarm information when the alarm state changes when the alarm occurs or returns. 3. The power plant according to claim 1, wherein the unit computer stores an important alarm item storage unit that stores an item which is an important alarm among the alarms processed by the unit computer. An alarm processing unit for determining whether the stored item is in an alarm state is provided. As a result of the data communication unit judging by the alarm processing unit, when an alarm is generated and when the unit returns from the alarm state, the general computer A general output unit for transmitting an important alarm item to the central computer and displaying the important alarm on the central computer; and an emergency stop device for each unit in the central control room or operation management center. system. 4. The power plant according to claim 1, wherein the unit computer has an operation state judgment unit for judging whether or not its own unit is in a start or stop operation, and an important alarm among the alarms processed by the unit computer. An important alarm item storage unit that stores an item, and an alarm processing unit that determines whether an item stored in the important alarm item storage unit is in an alarm state, wherein the data communication unit is an operation state determination unit. Receiving the result, when the start or stop operation is being performed, the important alarm items received from the alarm processing unit, and when the start or stop operation is not being performed, the process data taken by itself is transmitted to the general computer. Power generation operation system characterized in that the power is transmitted. 5. The power generation operation system according to claim 4, wherein when the unit is not in a start or stop operation operation in the data communication unit, the timing of transmitting the process data taken by itself to the general computer is set to a predetermined period. A power generation operation system characterized by the following. 6. The power generation operation system according to claim 4, wherein the data communication unit is replaced with the function of claim 4, and when the unit is not in the start or stop operation, an important alarm item is set. A power generation operation system characterized by transmitting its own processing data to the general computer when it is in the middle. 7. The power generation operation system according to claim 6, wherein, when the unit is being started or stopped in the data communication unit, the process data transmitted by itself is transmitted to the general computer at a fixed period. Power generation operation system characterized by the following. 8. The power plant according to claim 1, wherein the unit computer stores a performance calculator for calculating data relating to the operation results, performance, and management of the own unit, and stores a value of the data in a normal state. A normal value storage unit, and a performance determination unit for comparing the result calculated by the performance calculation unit with the data stored in the normal value storage unit to determine whether or not the power generation is normal. system. 9. A data collection device for collecting data such as sound, video, temperature, etc. of equipment of each unit of a power plant such as a thermal power plant and a nuclear power plant, and a steady state storage for storing data of the normal state of the data. A device, a field abnormality monitoring device including an abnormality determination device that compares data collected by the data collection device with data in a normal state stored in the steady state storage device, and monitors one unit. A unit computer that controls and receives the site abnormality information from the site abnormality monitoring device; and monitors the unit or a plurality of power plants for the site abnormality information with the unit computer.
A power generation operation system comprising: a general computer to be controlled; a data communication unit for notifying a management office for operation management and maintenance of the power plant; and an emergency stop device for each unit in the central control room or the operation management center. .