WO2003003133A1

WO2003003133A1 - Controller and monitor of plant operation

Info

Publication number: WO2003003133A1
Application number: PCT/JP2002/006465
Authority: WO
Inventors: Yoshio Maruyama; Yukiko Mouri; Tohru Akatsu; Hidekazu Fujimura; Masao Furukawa; Katsuhito Shimizu; Yasushi Hayasaka; Yoshiharu Hayashi; Atsushi Takita
Original assignee: Hitachi, Ltd.
Priority date: 2001-06-29
Filing date: 2002-06-27
Publication date: 2003-01-09

Abstract

In a controller of the operation of a power generation facility comprising a power generation facility (3) equipped with a protection apparatus (14) for sensing an abnormal condition occurring in the power generation facility (3) to protect the power generation facility and a sensor (21) for determining the process quantity of the power generation facility (3), an operation management apparatus (12) for setting the operation target value of the power generation facility, and an operation center (2) equipped with a controller (13) for controlling the process quantity of the power generation facility on the basis of the operation target value and the process quantity determined by the sensor, the operation center (2) connects with a plurality of power generation facilities via a communication line (1) to manage the plurality of power generation facilities by the operation center of (1).

Description

Specification

Plant operation control device and monitoring device

The present invention relates to a plant operation control device and a monitoring device. Background art

In conventional operation control devices, when controlling, operating, monitoring, and maintaining power generation facilities, usually a control device, operation management device, and maintenance tool are placed near each power generation facility, and these devices are used. Done. In addition, the control, operation, monitoring, and maintenance of the power generation equipment are usually performed by the owner of the power generation equipment.

In order to operate the power generation equipment using the conventional operation control device, a set of equipment such as a control device, an operation management device, and a maintenance tool is arranged near each power generation equipment regardless of the size of the power generation equipment. Needs to be implemented, and the amount of capital investment increases. In addition, the operation of the power generation facilities is carried out by the owners of the power generation facilities dispatching operators to the respective power generation facilities, which leads to an increase in the number of operators and labor costs.

When monitoring the operation of a plant at an operation monitoring center connected to the plant by a communication line, if any abnormality occurs in the operation monitoring center, the operation monitoring of the plant may not be able to be continued. When such a situation occurs, the plant must be shut down until the operation monitoring center is no longer abnormal, even though there is no problem with the plant itself. Disclosure of the invention

In order to solve at least one of the above-mentioned problems, the present invention provides a protection device that detects an abnormal state occurring in a power generation facility and protects the power generation facility, and a sensor that measures a process amount of the power generation facility. A power generation facility comprising: an operation management device that sets an operation target value of the power generation facility and manages an operation state; and controls a process amount of the power generation equipment based on the operation target value and a process amount measured by a sensor. Operation with control device In the operation control device for a power generation facility including a center, the operation center is connected to the plurality of power generation facilities via a communication line, and the plurality of power generation facilities are managed by one operation center.

Alternatively, in order to solve at least one of the above-mentioned problems, a plurality of operation monitoring sensors for monitoring plant operation are provided, and the plurality of operation monitoring sensors are connected to a communication line, for example, a communication network forming a ring network. This is achieved by connecting via a line and connecting a plant control device that controls the plant to the same communication line. Even if there are a plurality of operation monitoring sensors, the control device of the plant may be set to receive only the control information output from the predetermined operation monitoring sensor. If the operation supervisor determines that a certain operation monitoring center is abnormal and normal operation monitoring cannot be continued, the plant supervisor is notified to that effect, and the plant controller notifies the plant operator of the predetermined alternative operation. Change the setting to notify the management center and receive the control information for the plant (plant control device) transmitted from the alternative operation management center. In this case, the transmission destination of the status information indicating the status of the plant transmitted from the plant control device is also changed to the alternative operation management center.

Further, in consideration of a case where the communication means of the operation monitoring center is abnormal and the notification is not possible, if the operation monitoring center is functioning normally, the operation monitoring center sends a command to the plant controller. It is desirable to transmit the communication confirmation signal periodically. If the plant control device does not receive the communication confirmation signal for a predetermined period, it determines that an abnormality has occurred in the operation monitoring system, automatically notifies the predetermined alternative operation management system of the occurrence, and performs the replacement. The setting may be changed so that the control information for the plant (plant control device) transmitted from the operation management center is received. The transmission destination of the status information indicating the status of the plant transmitted from the plant control unit is also changed to the alternative operation management center.

Also, instead of directly connecting a plant control device to the communication line, a plant interface having a function similar to telephone exchange is connected to the communication line. A plant control device may be connected. When monitoring the operation of multiple plants, the plant control of each plant The control device is connected to the plant interface sensor via another communication line that forms a network. In this plant interface center, the combination of the operation monitoring center and the plant that is monitored by the operation monitoring center is stored, and the plant interface is received from a plurality of plant controllers by referring to this combination. The destination of various signals such as the status information and the various signals such as the control information received from the plurality of operation monitoring sensors by the plant interface center are set and transmitted.

If an error occurs in the operation monitoring center and a notification is received from the operation monitoring person that normal operation monitoring cannot be continued, the plant interface center sets the combination of the plant and the operation monitoring center in advance. Change to the specified alternative operation monitoring center and notify the alternative operation monitoring center.

Also in this case, it is desirable to periodically transmit a communication confirmation signal from the operation monitoring sensor in consideration of a case where an error occurs in the communication means of the operation monitoring sensor. If no communication confirmation signal is received for a predetermined period, the plant-in-face interface will judge that an abnormality has occurred in the operation monitoring center, and automatically switch the combination of the plant and the operation monitoring center. Change to the preset alternative operation monitoring system and notify the alternative operation monitoring system.

If an error occurs during operation monitoring, the operation monitoring operation is immediately taken over by another operation monitoring operation, and there is no need to stop plant operation.

A plant support center that stores the operational know-how of the plant may be provided by connecting to the above-mentioned plant-in-house interface. If there are multiple plants that are subject to operation monitoring, not only plants of the same type but also plants of different industries may be included. In such a case, the operation monitoring center requests the operation know-how from the plant-in-place center, and the plant-in-place center transfers this request to the plant support center. Upon receiving the request, the plant support center retrieves the requested know-how and outputs it to the plant-in-facing center, and the plant-in-facing center transmits the output information to the requesting operation monitoring center. With this configuration, plants of different industries Can support operation monitoring when there is a mixture of

Furthermore, the plurality of operation monitoring sensors are distributed and arranged at different intervals so that one of the operation monitoring sensors is always in the daytime at the place where the operation monitoring center is installed. It is desirable to do. If the operation monitoring system is placed in such a state, even if a certain plant has been operating continuously for 24 hours, the operation monitoring system is successively transferred to the operation monitoring system during the daytime. By doing so, it is possible to monitor the operation of a plant that operates continuously for 24 hours without night shift. BRIEF DESCRIPTION OF THE FIGURES

Figure 1 is an overall system diagram for explaining the centralized control, operation, monitoring, and maintenance of distributed power generation facilities.

FIG. 2 is a diagram illustrating a schematic configuration of an operation control device of a power generation facility.

FIG. 3 is a diagram illustrating an operation control device of the power generation equipment according to the embodiment of the present invention.

FIG. 4 is a diagram illustrating an example in which a communication satellite is used as a network.

FIG. 5 is a diagram showing data collected by the operation management device.

FIG. 6 is a block diagram showing the overall configuration of the second embodiment.

FIG. 7 is a block diagram illustrating a system configuration of the operation monitoring center according to the second embodiment.

FIG. 8 is a block diagram illustrating a system configuration of a plant control device according to the second embodiment.

FIG. 9 is a block diagram showing the details of the operation monitoring process in the second embodiment.

FIG. 10 is a block diagram showing the overall configuration of the third embodiment.

FIG. 11 is a block diagram showing a system configuration of an operation monitoring center according to the third embodiment.

FIG. 12 is a diagram showing a plant-in-system and a system in the third embodiment. FIG. 3 is a block diagram showing a stem configuration.

FIG. 13 is a block diagram showing a system configuration of a plant support center according to the third embodiment.

FIG. 14 is a block diagram showing details of the operation monitoring process in the third embodiment.

FIG. 15 is a block diagram illustrating details of the processing of the plant interface sensor 1 according to the third embodiment.

FIG. 16 is a block diagram showing details of the processing of the plant support center in the third embodiment. BEST MODE FOR CARRYING OUT THE INVENTION

Figure 1 is an overall view of the system for explaining the centralized control, operation, monitoring and maintenance of distributed power generation facilities.

Power generation facilities such as thermal power generation facilities 3, wind power generation facilities 8, photovoltaic power generation facilities 7 installed on the roof of building 6, and micro gas evening bin power generation facilities 5 installed in building 4 Connected to the operation center 2 via

In the vicinity of the large thermal power generation equipment 3, wind power generation equipment 8, solar power generation equipment 7, and microphone mouth gas turbine power generation equipment 5, protection devices are installed to protect the power generation equipment. If there is an abnormality in the power generation equipment, the power generation equipment can be stopped immediately.

On the other hand, a control device, an operation management device, and a maintenance tool for controlling the respective power generation facilities via the communication network 1 are installed in the operation center 2.

In this way, control, operation, monitoring, and maintenance of multiple power generation facilities can be centrally performed in operation center 2. For this reason, it is not necessary to install control equipment, operation management equipment, and maintenance tools for each power generation facility as in the past. Furthermore, it is not necessary to assign an operator for each power generation facility.

FIG. 2 is a diagram illustrating a schematic configuration of an operation control device of a power generation facility. As shown As described above, the operation management device 12 is placed in the central working room where operators are resident, the control device 13 and the protection device 14 are placed in the control equipment room with air conditioning, and the site where the power generation equipment is placed In 15, devices such as a sensor 21 for measuring various process quantities, a limit switch 22 for detecting occurrence of abnormality, and a valve 23 are installed.

The control device 13 takes in the actual control amount 32 of the current power generation equipment from the sensor 21 and calculates the difference from the target command value 31 supplied by the operation management device 12 by the computing unit 24. Then, the calculation result is output as the difference signal 33. Next, the difference signal 33 is output as a PI calculation result 34 via a PI calculator 25. Reference numeral 26 denotes a first switching switch that switches between the automatic operation mode and the manual operation mode based on the switching command 35.The PI operation result 34 is output in the automatic operation mode, and the operation management device outputs the PI operation result 34 in the manual operation mode by the operator. Select and output the manual repeat command 36 that is output.

The protection device 14 receives the selection output 30 of the first switching switch, and outputs a signal 39 to the power generation facility as a final conversion output via the switch 28. Reference numeral 28 denotes a second switching switch for switching between the selection signal 30 and a stop signal for safely stopping the power generation equipment when an abnormality occurs, for example, a fully closed signal 37 of the valve. The switch normally selects the output 30 of the control device, but when a signal 38 indicating an abnormality of the power generation equipment is input by a limit switch 22 or the like installed in the power generation equipment, the above switch is normally selected. Select the close signal 37 to completely close the valve 23, and safely stop the power generation equipment. FIG. 3 is an explanatory diagram of the operation control device of the power generation equipment according to the embodiment of the present invention. In the figure, the same parts as those shown in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 3, the operation management device 12 and the control device 13 are arranged in an operation center 2, and the protection device 14 for the power generation equipment, the sensor 21, the limit switch 22 and the valve 2 are provided. The devices such as 3 are installed, for example, in the thermal power plant 3. The operation center 2 and the power generation facility 3 are connected by a communication network 1. The signal flow in the device is the same as that described in FIG. However, the actual control amount 32 of the power generation equipment taken in from the sensor 21 and the output signal 30 of the control device 13 are transmitted and received via the network 1. When an abnormality occurs in the power generation equipment, a signal 38 indicating the abnormality is input directly to the protection device. In this embodiment, since the protection device 14 is installed in the vicinity of each power generation facility, signals can be input and output without passing through a network. For this reason, when protecting the power generation equipment, the possibility of malfunctions and malfunctions can be reduced.

In addition, the protection and control functions are separated from each other, and signals are sent and received via the network, so that the control and management functions can be transferred to an operation center that is independent of the power generation equipment. For this reason, one operation management center enables centralized control, operation, and management of multiple power generation facilities.

FIG. 4 is a diagram showing an example in which a communication line using a communication satellite is used as the network. In the figure, reference numeral 42 denotes, for example, a power generation facility located on a remote island, which is provided with a protection device. 43 is a large-scale power generation facility constructed near an urban area, for example. The operation management of the power generation facility 42 and the large-scale power generation facility 43 on the remote island can be performed centrally at the operation center 44 using the communication line using the communication satellite. In this way, it is possible to control and manage power generation facilities at remote locations by using wireless links via communication satellites.

FIG. 5 is a diagram showing management data collected by the operation management device. An example will be described in which the operation management device 12 operates and manages the power plants A, B, and C via the network 1.

The operation management device 12 includes a storage device in the device, and stores and manages the operation management data 61 in the storage device. For example, tab 62 stores the operation management data of power plant A, tab 63 stores the operation management data of power plant B, and tab 64 stores the operation management data of power plant C.

Management data for power plant A 6 1 includes operating time data 6 5, operator's operation history for power generation equipment 6 6, alarm history issued by power generation equipment 6 7, power generation Store the quantity 6 8.

The operation time data 65 is obtained from the stop time of the power generation equipment minus the stop time of the power generation equipment. The operation history record 66 stores the history of operations performed by the operator on the power generation equipment at the operation management center. For example, `` 9:03 am on February 10, 2010 At 5 minutes, the opening of valve A was manually opened by 5%. "

The alarm history 67 is a history of the operation of the operator in response to the alarm issued by the power generation facility. For example, information is recorded that “A low alarm of A flow rate occurred at 9:25 am on February 10, 2001”. Also, as a result of the cause investigation, if the operator has performed an operation in the operation history 66, the operator enters the investigation mark 69 in the history.

The power generation amount 68 is the total amount of power generation during the operation time stored in the operation time 65.

Next, an example will be described in which, for example, operation management of a plurality of power generation facilities is performed on behalf of the operation control device of the power generation facility of the present embodiment.

For example, the operator of the operation center can manage the operation of each of the power generation facilities via a network on behalf of the owner of each power generation facility. At this time, the price for the operation management service of each power generation facility can be calculated as follows. In other words, the basic fee is the facility usage fee at the time of operation, regardless of the operating hours of the power generation facility. Furthermore, in addition to this fee, an operation management fee proportional to the operating time of the power generation equipment and a fee calculated from the amount of power generation are added to calculate. In addition, a fee for investigating the cause of an operation command or alarm corresponding to an event that occurs in an event can be added.

As described above, according to the present embodiment, the protection device for the power generation equipment that needs to be operated in a short time in the event of an abnormality, and the operation management unit and the control unit that perform operation management and the like of the power generation equipment are separated. By connecting via a communication line, the operation of multiple power generation facilities can be managed by one operation center.

Next, a second embodiment of the present invention will be described with reference to the drawings. Figure 6 shows the overall configuration. In the present embodiment, a plurality of plant control devices 102 for controlling corresponding plants (not shown) and a communication line 103 which forms a network to which each plant control device 102 is connected are provided. And an operation monitoring center 101 connected to the communication line 103 and monitoring the operation of the plurality of plants via the plant control device 102.

Each operation monitoring center 101 is connected to any of the plurality of plant control devices 102 Are also communicable, and the operation and monitoring of the plant corresponding to each plant control device 102 are executed via the plant control device 102. However, each plant control device 102 is set so that even if signals (control information) for control are input from multiple operation monitoring centers, only the signal from the operation monitoring center notified in advance is received. Have been.

Each of the above plants has been operating continuously for 24 hours.

The plurality of operation monitoring centers 101 are installed at locations where longitudes differ by about 60 degrees. In other words, considering the local solar time rather than the local standard time, when a certain operation monitoring center at 8:00 a.m., the operation monitoring center at the west is about 4:00 a.m. Is around 12:00 in the daytime.

Figure 7 shows an example of the configuration of the operation monitoring center. The operation monitoring center is connected to consoles 1 1 1 and 1 1 1 equipped with input means for actually inputting control information and other operations, and is used to input screen display, operation commands, and plant data. Human machine interface server (hereinafter referred to as HMI server) 1 1 2, 111 \ / [1 Communication device 1 15 connected to the plant 1 1 2 and communication with the plant 1 1 5 Communication device 1 15 and HMI server 1 1 Includes a data server 1 13 connected to 2 and inputs and stores data (status information) from the plant, such as trends, diaries, and alarms required for plant monitoring, and a database 1 14 connected to the data server 1 13 It is composed of The display screen of the HMI server also serves as a display means for displaying plant status information and the like. FIG. 9 shows a configuration example of the HMI server 112, the data server 113, and the communication device 115, which is a communication means of the operation monitoring center. The HMI server 1 1 2 is connected to the console 1 1 1 and is connected to display processing 4 0 2, data request processing 4 0 3, command input 4 0 6, display processing 4 0 2, data processing request Processing 4 0 4 connected to input search 4 0 4, disk 4 0 5 connected to input search 4 0 4, history processing 4 1 3 also connected to input search 4 4 4, history processing And an input log 4 14 connected to 4 13.

The data server 113 includes a search process 416 connected to the input search 404, a search log 417 connected to the search process 416, and a recording process connected to the DB 114. And a recording log 420 connected to the recording process 419.

The communication device 115 includes a communication I / F 415 connected to the communication line 103, and an input buffer 412 and an output buffer 408 connected to the communication I / F 415, respectively. , An input process 4 1 1 connected to the input buffer 4 1 2, an output process 4 0 7 connected to the output buffer 4 0 8, a history process 4 0 9 connected to the output process 4 0 7, An output log 410 connected to the history processing 409 is configured. The output process 4 07 is connected to the command input 4 06 and the input search 4 04, and the input process 4 11 1 is connected to the recording process 4 19 and the input search 4 0 4

FIG. 8 shows a configuration example of the plant 124 and the plant control device 102. The plant control device 102 is a console 1 that monitors the operation of the plant 124 via the control devices 122, 123, and the control devices 122, 123 that control the plant 124. 21, a network 1 26 connecting these, and a communication device 125 connected to the network 126 and communicating with the operation monitoring center 101. As described above, the communication device 125 transmits the control signal (control information) transmitted from the operation monitoring sensor, which has been notified in advance that the operation of the plant is to be monitored, to the communication line 103. The control signal sent from other operation monitoring centers is not received even if it is destined for the relevant plant. The operation console 122 displays an operation monitoring center that is performing operation monitoring at that time. The control devices 122, 123 also capture various status information from the plant 124, and monitor the operation of the captured status information via the communication line 103 from the communication device 125. Sent to the operation monitoring center 101.

The HMI server 112, the data server 113, and the communication device 115 configured as described above operate as follows. The command (control information) to the plant input from the console 1 1 1 is sent to the output process 4 07 via the command input 4 0 6, and after a predetermined process is performed, the output buffer 4 0 8 as the command data Is stored in The command data stored in the output buffer 408 is transmitted from the communication I / F 415 to the plant control device 102 of the target plant via the communication line 103. In the output process 4 07, History processing that keeps a history of what commands were issued to which brands 4

09 is executed and recorded in the output log 410.

On the other hand, the data sent from the plant side to the operation monitoring center via the communication line 103

—Evening (status information) is taken from the communication I / F 415 to the input buffer 412, and the input processing 411 is executed. If the data input from the plant is a trend data, a diary, etc., after the input processing 4 11 is performed, the recording processing 4 19 is executed and the data is recorded in the DB 1 14 At the same time, record the date and time from which plant it was sent to the recording log 420.

When displaying data from the plant or data recorded in the DB 114 on the display screen of the console 111, a data request is made from the console 111, and H

The data request processing 4 0 3 of the MI server 1 1 2 is executed. Next, an input search 4 is performed to search whether the requested data is in the plant or in DB 114.

0 4 is executed. The input search 404 searches the data stored in the hard disk 405 for where the data corresponding to the requested process is. As a result of input search 404, if the requested data is in DB114, search processing of data in DB114 is performed, and data is retrieved from DB114. To perform display processing 402, and display on the display screen of operation console 111.

If the requested data is found in the plant as a result of input search 4 0 4, communication 1

The data is read from the plant through F 4 15 and taken into the input buffer 4 12. The input processing 4 1 1 is performed for the data captured in the input buffer 4 1 2, the display processing 4 2 is performed, and the data is displayed on the display screen of the console 1 1 1.

The above-mentioned plurality of operation monitoring sensors are installed at different positions during the daytime, for example, from 8:00 to 17 o'clock in solar time, and become true at 16 o'clock. The operation monitoring work will be taken over at the operation monitoring center installed at the position where the solar time is at 8 o'clock. In this way, by taking over the operation monitoring work to the operation monitoring center located in the position of daytime in order, the operation monitoring personnel can perform the monitoring work for 24 hours during the same three shifts during the daytime. Work only.

In the case of such a predetermined takeover of the operation monitoring work, the operation monitoring From the operation monitoring center 101, which has been performing the operation monitoring, to the plant control device 102 of the target plant, a signal specifying the operation monitoring center for performing the operation monitoring operation next and the takeover time is transmitted. Upon receiving this signal, the communication device 1 25 of the plant control device 102 of the target plant takes in the control signal transmitted from the designated operation monitoring sensor after the designated time, and the control device 1 2 2, 1 2 3 and console 12 1. The operation monitoring center, which has received the handover, takes in the plant data transmitted from the plant control device 102 of the target plant to the communication line 103 and outputs necessary control signals to perform operation monitoring.

Next, the case where an abnormality occurs in the operation monitoring center where the operation and monitoring is being performed and the operation monitoring is handed over to another operation monitoring center will be described.

a. If an error occurs during the operation monitoring while the operation monitoring is being performed, and the operation monitoring person determines that normal operation monitoring cannot be continued:

The operation monitor notifies the blunt control device 102 of the operation monitoring target brand that the operation monitoring cannot be continued by a predetermined signal. Upon receiving this notification, the communication device 125 of the blunt control device 102 automatically transmits a signal requesting takeover of operation monitoring to the alternative operation monitoring center selected in a predetermined procedure. Change the settings so that signals from the alternative operation monitoring center are taken in. On the other hand, the communication device 1 15 of the alternative operation monitoring center that has received the bow I splice request transmits this request to the console 1 1 1, and the console 1 1 1 1 indicates that the takeover request has been received. Warnings (sounds and flashing lights) are generated to alert the driving and monitoring personnel. The operation supervisor monitors the operation according to a procedure predetermined for each plant. b. If the communication device of the operation monitoring sensor is abnormal:

The communication device of the operation monitoring center sends out a predetermined signal (communication confirmation signal) periodically while the operation monitoring sensor is operating normally. If the communication confirmation signal transmitted at a predetermined period from the operation monitoring center is not received for a predetermined period, an error occurs in the operation monitoring center or the communication line. And automatically sends a signal to the predetermined alternative operation monitoring center to request the takeover of operation monitoring, and sends a signal from the alternative operation monitoring center. Change the settings to capture the issue. Subsequent procedures are the same as those in a. Above.

As for the alternative operation monitoring center, in both cases a and b above, the operation monitoring center in the daytime is selected when the bow I splice request is issued. If it is not possible to select an operation monitoring center in the daytime due to the arrangement of the operation monitoring center, it is desirable to set in advance an operation monitoring center capable of emergency response. According to the present embodiment, a plurality of plants and a plurality of operation monitoring centers for monitoring the operation are connected via a communication line forming a network. Even if monitoring cannot be continued, operation monitoring can be easily taken over to another operation monitoring center, and plant operation can be continued. In addition, since multiple operation monitoring centers are distributed so as to overlap during the daytime, there is a possibility that operation monitoring will be handed over to another operation monitoring center due to an abnormality occurring in the operation monitoring center. However, there is an effect that correspondence is easy. In addition, since multiple brands and multiple operation monitoring centers that monitor their operation are connected via a communication line that forms a network, large-scale construction is not required when adding or leaving a plant for operation monitoring. It is only necessary to connect the plant (blunt control unit) to the network, and it is easy to add or leave a plant for operation monitoring.

In addition, as mentioned earlier, by taking over the operation monitoring work in the evening, which is sequentially in the daytime, the operation monitoring staff will be able to perform 24 hours of monitoring work in the same three shifts. This also has the effect of requiring only daytime work, eliminating the need for night work, and reducing labor costs for operation.

FIG. 10 shows a third embodiment of the present invention. This embodiment is different from the second embodiment in that a communication line (ring-shaped network) 103 to which an operation monitoring sensor 101 is connected is connected to a plant-internal face center 60 2. The plant control unit 102 is connected to a plant interface module 602 via a communication line (ring-shaped network) 601 and the plant interface center. The point is that plant support center 604 is connected to 602 via communication line 603. Since other configurations are the same, Are denoted by the same reference numerals and description thereof is omitted.

The plant interface center 602 has a plant data server function for inputting and storing the data of multiple plant control devices 102, and this data can be read from multiple operation monitoring sensors 11. Public server function, a plant command receiving server function to receive command signals (control signals) from the operation monitoring sensor 101 to the plant control device 102, and this command to the plant control device 102. It has a command output server function to notify.

The plant control device 102, which controls the plant, has been operating for 24 hours. It is connected to the plant line 602 and the communication line 601 to operate the plant (status information) and operation. The command decoder (control information) from the monitoring center 101 is exchanged with the plant-in-home interface.

The Plant Support Center 604 is connected to the Plant Support Center 604, which has the know-how of plant operation as a plant, via a communication line 603, and the Plant Support Center 604 It has a function to provide know-how on plant operation at the operation monitoring center.

In the present embodiment, communication between the operation monitoring sensor 101 and the plant is performed via the plant interface sensor 602 having a function similar to telephone exchange. Sometimes, just by connecting the plant control unit 102 of the plant to be added and the plant in the face of the plant, it is necessary to connect the plant control unit 102 and the plant in the daytime. The operation can be monitored by the operation monitoring center.

In addition, when an operation monitoring center is added or removed, it is only necessary to add and remove the communication line between the operation monitoring center 101 and the plant interface center 62, and to operate the plant whose operation is to be monitored. It is not necessary to change the communication connection when changing the monitoring center.

FIG. 11 shows a configuration example of the operation monitoring sensor according to the present embodiment. The configuration shown in the figure differs from the configuration of the operation monitoring center in the second embodiment in that the server 113 and the DB 114 are not provided. Another configuration is the second configuration. Since the configuration is the same as that of the operation monitoring center in the embodiment, the same reference numerals are given and the description is omitted. In the present embodiment, the plant interface module 602 fulfills the functions of the data server 113 and the DB 114 of the operation monitoring center of the second embodiment.

FIG. 12 shows a configuration example of the plant interface center 602 in the present embodiment. The illustrated plant interface center 62 is connected to the plant server 112A, the DB 114A connected to the plant server 112A, and the plant server 112A via the communication line. A data server 113A, a data server 113A connected to the data server 113A, and a communication device 115A connected to the communication line. The plant server 112A contains the plant names of multiple plants, plant types, one operation monitoring center, the combination of the name of the operation monitoring center that currently monitors operation of each plant and the plant name, and the location of the operation monitoring center. Information on the location of the runt, the sequence of the continuous operation monitoring at the regular operation monitoring center, the special time, and the alternative operation monitoring center at the operation monitoring center in the event of an abnormality are stored in the DB114A. I do. The data server 113A provides status information, that is, trends (data representing time-series plant status) necessary for plant monitoring, a diary (data representing events such as the start and stop of plant equipment), and alarms. Capture the data from the plant, such as the status of occurrence, and store it in DB116A. Communication device 115A is connected to communication line 103, communication line 601 and communication line 603, and communicates with each operation monitoring center, each plant and plant support center 604. Do.

FIG. 13 shows a configuration example of the plant support center 604 in the present embodiment. The plant support center 600 shown in the figure is connected to the plant server 1 12 B, the DB 1 14 B connected to the plant server 1 1 2 B, and the plant server 1 1 2 B via a communication line. A data server 111B connected to the data server 113B, and a communication device 115B connected to the communication line. ing. The plant server 112B stores information such as the plant names and plant types of a plurality of plants in the DB114B. The data server 1 13 B inputs the plant operation know-how and stores it in DB 1 16 B. Communication device 1 1 5 B It is connected to the plant interface center 602 via the communication line 603 to exchange information with the plant interface center 602. FIG. 14 shows the configuration of the operation monitoring center in the present embodiment. The HMI server 112 has a display processing function 402, a data request processing function 403, and a command input function 406. The communication device 1 15 is connected to the communication I / F 415 connected to the communication line 103, the output buffer 408 connected to the communication I / F 415, and the output buffer 408. Output processing function 407, history processing function 409 connected to output processing function 407, output log 411 connected to history processing function 409, and communication IZF 4 1 Input buffer 4 1 2 connected to 5; input processing function 4 1 1 connected to input buffer 4 1 2; history processing function 1 0 6 connected to input processing function 4 1 1; history processing And an input log 11010 connected to the function 1006.

The input processing function 411 is connected to the display processing function 402, the data request processing function 403, and the command input function 406 are connected to the output processing function 407.

When a command or a request for a plant or plant interface is issued from the console 1 1 1 to the HMI server 1 12, the HMI server 1 1 2 After the command input processing or the data request processing is performed, it is passed to the output processing function 407. After the output processing, the communication device 115 stores the command data in the output buffer 408, and stores the command data stored in the output buffer 408 via the communication I / F 415 to the communication line 1. The transmission is made to the plant-in-face center 602 via 03. When performing the output process, a history process is performed to keep a history of what command was issued to which plant, and the result is stored as an output log 410. The command transmitted to the plant interface center 602 is transmitted from the plant interface center 602 to the plant control device 102 of the destination plant.

On the other hand, the data sent from the plant side to the operation monitoring center is once taken into the plant interface center 602 from the communication line 601 and then sent from the plant interface center 602. An operation monitoring cell that performs operation monitoring To the communication line 103. The communication device 1 15 of the operation monitoring sensor 101 captures the signal addressed to the self-operation monitoring center via the communication I / F 415, stores it in the input buffer 412, and then performs the input processing function 411 Input processing is performed at 1. If the captured signal is a display data such as plant trend data or a diary, it is displayed on the HMI server 112 and displayed on the display screen of the console 111. In addition, when performing input processing, the history of the data sent from which plant or from which plant interface center is processed and recorded in the input log 10 10 .

Figure 15 shows the input and output of data at the Plant-in-Yuichi Face Center. Although the figure shows the communication device 1 15 A, data server 1 13 A, and DB 1 16 A, the same applies to the plant server 1 12 A and DB 1 14 A.

Signals transmitted from each plant, each operation monitoring center, and plant support center are connected to the input buffer 1 via the communication interface 1 15 A of the plant-in interface and the interface 115 A. It is taken in by 106. Input processing 1 1 1 0 is performed on the signal captured by the input buffer 1 106, and whether the signal is a signal addressed to Interface Sen Yuichi or a signal addressed to the plant support center 1 is operated. It is determined whether the signal is sent to the monitoring center Yuichi.

If the signal is not destined for the interface center, the output processing 1 1 1 2 and the history processing 1 1 1 3 are performed, and the output log 1 1 09 shows where and when the signal was output. Remember. The output processing includes a procedure for setting or confirming the destination by referring to the combination of the plant name and operation monitoring center stored in DB114A. The output-processed signal is temporarily stored in the output buffer 1108, and transmitted to the destination via the communication I / F 1105.

If the input signal is a signal destined for the interface center, for example, a display data-evening request command, the necessary data is retrieved from DB116A and processed from 1114. The search log 1 1 1 5 is stored when the search was performed with the data of the above. After performing the output processing 1102, the retrieved data is transferred to the output buffer 1108 and transmitted to the requester of the data via the communication I / F 1105. It is.

When the operation monitoring center requests time-series data, such as trend data, for example, for plant data, this request is sent from the communication line 103 to the communication device 115 A of the plant interface center communication device. Taken into input buffer 1106 via / F1105. After receiving the request, the interface performs input processing 1 1 1 0 and confirms the content of the request, then performs output processing 1 1 1 2 and transfers the signal to the output buffer 1 108 to communicate. Request the relevant plant for the overnight via IZF1105.

In response to the request, the trend data sent from the relevant plant via the communication line 601 communicates the communication 1 / F 1 105 of the communication device 1 15 A of the plant-in-face interface center. Via the input buffer 1106. The trend data captured in the input buffer 1106 is subjected to data recording processing 1116 after input processing, and is stored in the DB116A. At the same time, the date and time at which plant of which plant was recorded is stored as the recording log 107. Further, in order to transmit the trend data to the requesting operation monitoring center, the output processing is performed after the input processing, the data is transferred to the output buffer 1108, and the communication I / F is transmitted. By means of 1105, a message is sent to the corresponding operation monitoring center via the communication line 3.

Figure 16 shows the input and output of data for Plant Support Senichi 604. In the figure, the communication device 1 15 B, the data server 1 13 B, and the DB 1 16 B are shown, but the same applies to the brand server 1 12 B and DB 1 14 B. When the operation monitoring center sends a request to transmit the plant operation know-how, a signal indicating the request is sent to the communication line 603 via the plant interface center 602, and the plant support center is sent. In the evening 1604, the signal indicating the request is taken into the input buffer 1205 by the communication 1 / F1204 of the communication device 1115B. Input processing 1109 is performed on the signal fetched into the input buffer 1105, and search processing 1 2 1 3 is performed to search the DB 1 16 B for the desired data based on the request. Is done. Output processing 1 2 1 1 is performed on the retrieved data, stored in the output buffer 1 2 0 7, and then the communication line 6 3 is connected by the communication I / F 1 2 4 4. Via the plant interface.

At the time of the input process 1209, a history process 1120 that stores, as an input log 1206, the data from where and when the data was received is executed. Also, when executing the above-mentioned search processing 1 2 1 3, when and what kind of search was performed is stored as a search log 1 2 1 4, and when the output processing 1 2 1 1 is executed In this case, a history process 1 2 12 is executed to store the date and time of transmission as an output log 1 208.

Also in this embodiment, the operation monitoring of each plant is successively taken over during the daytime during the operation monitoring session, but at that time, the operation monitoring Notify In-Yuichi Face Center 602 of the name of the plant to be taken over and the time of taking over in a predetermined format.

The plant-in-home face center 602, which received the notification, searches the plant server DB 1-14A for DB114A, checks the operation monitoring center to take over the operation monitoring, and finds the relevant time. A signal is sent to the operation monitoring center to instruct to take over the operation monitoring of the plant. At the same time, the combination of the plant stored in DB114A and the operation monitoring sensor that monitors the operation of the plant is changed to a new operation monitoring sensor combination. Therefore, the destination of the various data sent from the plant is set to the new operation monitoring center (the taken over operation monitoring center) when passing through the plant interface center 602. When the plant interface sensor 602 requests the transmission of past plant data from the operation monitoring sensor that took over the operation monitoring, it searches the DB 116 A for necessary data. Is transmitted to the requesting operation monitoring center.

In the present embodiment, when an abnormality occurs in the operation monitoring center that monitors the operation of a certain plant and the operation monitoring is taken over by another operation monitoring center, each of the brand control devices 1 in the second embodiment is used. The role played by 0 2 will be handled by the Brand Interface Center 60 2. The procedure in that case is described below.

The operation monitoring person at the operation monitoring center where the abnormality occurred was set in advance at the plant interface center 62 so that operation monitoring could not be continued due to the abnormality. Send a signal.

Upon receiving the signal indicating that operation monitoring cannot be continued, the plant interface module — 622 searches the plant server 112 8 for 081 1 14 A, and the operation monitoring sensor monitors the operation. After confirming the plant and the alternative operation monitoring center, a signal is sent to the alternative operation monitoring center to instruct to take over the operation monitoring of the blunt. At the same time, change the combination of the plant stored in DB114A and the operation monitoring sensor that monitors the operation of the plant to the combination of the alternative operation monitoring sensor. Therefore, the destination of various data transmitted from the plant is set to a new operation monitoring center (alternate operation monitoring center) when passing through the plant interface center 602. If the plant interface center 1602 is requested to send past plant data from the operation monitoring center that took over the operation monitoring, it searches the DB116A and requests the necessary data. It is sent to the original operation monitoring center.

The communication device 1 15 at each operation monitoring center periodically transmits a specified signal (communication confirmation signal) to the plant-in center 1602 while the operation monitoring sensor is operating normally. are doing. The plant interface center 602 monitors this communication confirmation signal, and if the communication confirmation signal of a certain operation monitoring center cannot be received for a predetermined period, an abnormality has occurred in that operation monitoring center or communication device. The operation monitoring center, which has determined that an error has occurred, takes over the operation monitoring of the plant whose operation monitoring is being performed by the alternative operation monitoring center in the same procedure as described above. Is transmitted. The rest of the procedure is the same as described above.

In this case, even if the operation monitoring center is changed, the plant side has no effect since all communications with the operation monitoring center go through the plant interface center 602 as before. Not done.

At the operation monitoring sensor receiving the signal instructing to take over the operation monitoring of the plant, as in the case of the second embodiment, an alarm is issued by a sound signal and a flashing light at the console 11 and the operation is started. · Call attention of the observer. The operation and monitoring personnel are for each plant. The operation monitoring is started in accordance with a procedure predetermined in (1).

According to the present embodiment, similarly to the second embodiment, even if the operation monitoring cannot be continued due to the occurrence of an abnormality at the operation monitoring center, the operation can be easily performed to another operation monitoring center. Monitoring can be taken over, and plant operation can be continued. In addition, since a plurality of operation monitoring sensors are distributed so as to overlap in the daytime, there is a possibility that operation monitoring will be taken over to another operation monitoring center due to an abnormality at the operation monitoring center. This also has the effect that correspondence is easy. In addition, by taking over the operation monitoring work at the operation monitoring center, which is in the position of daytime in turn, the operation monitoring personnel can perform the monitoring work for 24 hours with the same three shifts. Only daytime work is required, which eliminates the need for nighttime work and reduces labor costs.

The operation monitoring center and the plant (plant control device) are

—Because it was connected via Faithsen Yuichi 602, it became easier to respond to increases and decreases in operation monitoring centers and plants. In addition, a plant support center 604 was connected to the plant interface center 602 to store the know-how of plant operation monitoring and output it on demand. Operation can be monitored efficiently.

As described above, multiple power generation facilities can be centrally operated and monitored in one operation center.

Furthermore, when the operation of a plant is monitored at an operation monitoring center located away from the plant installation position, the plant operation can be continued even if any abnormality occurs at the operation monitoring center. Has the effect of doing

Claims

The scope of the claims

1. A power generation facility having a protection device for detecting an abnormal state occurring in the power generation facility and protecting the power generation facility, and a sensor for measuring a process amount of the power generation facility, and an operation target value of the power generation facility. An operation management device that sets and manages an operation state, and an operation system that includes a control device that controls a process amount of the power generation facility based on the operation target value and a process amount measured by the sensor. In the operation control device, the operation center is connected to a plurality of the power generation facilities via a communication line, and the plurality of power generation facilities are managed by one operation center. .

2. The plant operation control device according to claim 1, wherein the power generation equipment is a photovoltaic power generation device, a fuel cell, or a distributed power source composed of micro gas bins.

3. A power generation facility equipped with a protection device for detecting an abnormal state occurring in the power generation facility and protecting the power generation facility, and a sensor for measuring a process amount of the power generation facility, and an operation target value of the power generation facility. An operation management device for setting and managing an operation state, a control device for controlling a process amount of a power generation facility based on the operation target value and a process amount measured by a sensor, and a record for recording operation history information of the power generation facility An operation control device for a power generation facility comprising: an operation center provided with a device;

The plant operation control device, wherein the operation center is connected to a plurality of the power generation facilities via a communication line, and the plurality of power generation facilities are managed by one operation center.

4. The plant operation control device according to claim 3, wherein the power generation equipment is a solar cell power generation device, a fuel cell, or a distributed power source including a micro gas bin.

5. The plant operation control device according to claim 3, wherein the operation history information is an operation time of a power generation facility, a manual operation record of an operator, and an alarm history of the power generation facility.

6. A plant control device that obtains status information indicating the status of the plant, transmits the communication information to the communication line, and receives control information for the plant from the communication line to control the plant. Input means for inputting control information for the plant, communication means for receiving the plant status information from the communication line, and outputting the input control information to the communication line; and Display means for displaying the received status information; and an operation monitoring system comprising: a plant operation monitoring system comprising:

A plurality of the operation monitoring sensors are respectively connected to the communication line, and each of the operation monitoring sensors is individually connected to the plant control device via a plant control device connected to the communication line. A plant operation monitoring system configured to be able to monitor the operation of a plant controlled by a device.

7. The plant operation monitoring system according to claim 6, wherein the plant control device includes control information output from a predetermined operation monitoring sensor among control information output from the plurality of operation monitoring sensors. Wherein the setting is changed to receive control information output from another operation monitoring sensor according to the notification from the predetermined operation monitoring sensor. Operation monitoring system.

8. The plant operation monitoring system according to claim 7, wherein each operation monitoring sensor is configured to periodically transmit a communication confirmation signal to a plant control device of the plant whose operation is being monitored. The device is set to receive control information output from a predetermined operation monitoring sensor among control information output from a plurality of operation monitoring sensors, and the communication confirmation signal is transmitted for a predetermined period. Receive If not, the setting is changed to receive the control information output from another predetermined operation monitoring center, and the plant operation monitoring system is characterized in that the setting is changed.

9. A plant control device that acquires status information indicating the status of the plant, transmits the acquired status information to the plant interface center, and receives control information for the blunt from the blunt interface sensor to control the plant. An input means connected to the interface center via a communication line, respectively, for inputting control information for a plant for monitoring operation, receiving status information of the brand for monitoring operation from the communication line, A plurality of operation monitoring centers comprising: a communication unit that outputs the input control information to the communication line; and a display unit that displays the received state information. In the monitoring system,

The plant interface interface stores the status information received from the plant control device, transmits the status information to an operation monitoring device that monitors operation of a plant controlled by the plant control device, via the communication line, The operation monitoring center is configured to transmit control information received via the communication line to a plant control device of a brand that the operation monitoring center performs operation monitoring, and each of the plurality of operation monitoring centers includes: A plant operation monitoring system, which is configured to be capable of monitoring operation of a plant controlled by a plant control device via the plant control device via the plant control device.

10. The plant operation monitoring system according to claim 9, wherein the plant interface is a combination of the operation monitoring center and a plant whose operation is monitored by the operation monitoring center every operation monitoring center. The state information received from the plant control device and the control information received from the operation monitoring center are configured to be transmitted by setting a destination with reference to the combination. In response to a notification from the operation monitoring center that monitors the operation of the plant, the combination of the plant and the operation monitoring center is changed to a combination with another predetermined operation monitoring center. An operation monitoring system for a plant, wherein the system is configured to be changed and stored.

11. The plant operation monitoring system according to claim 10, wherein the plant interface center is configured to determine a combination of the operation monitoring terminal and a plant that the operation monitoring terminal monitors for operation every operation monitoring terminal. The state information received from the plant control device and the control information received from the operation monitoring center are configured to be transmitted by setting the destination with reference to the combination. The monitoring center is configured to periodically transmit a communication confirmation signal to the brand-in interface, and the plant-in interface does not receive the communication confirmation signal for a predetermined period. In this case, the combination of the operation monitoring sensor and the plant is changed to a predetermined combination with another operation monitoring sensor and stored. Plant operation monitoring system according to claim Rukoto.

12. The plant operation monitoring system according to claim 11, further comprising a plant support center connected to the plant interface center, wherein the plant support center is connected to the plant interface center. It stores operation know-how relating to the plant controlled by the connected plant control device, and is configured to search for and output the requested know-how. When a signal requesting operation know-how is received, the request is forwarded to the plant support center, and information output from the plant support center is transmitted to the operation monitoring center of the request source. Features a brand operation monitoring system.

13. The plant operation monitoring system according to claim 12, wherein the plurality of operation monitoring stations are distributed at different longitude positions such that one of the operation monitoring stations is always in the daytime. A plant operation monitoring system, which is located.