JPH10257673A - Diagnosis system for monitoring transforming equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a device configuration at a substation side and to monitor and diagnose a plurality of substations centrally at one location by achieving a complex and processing a large-capacity database in a device at an upper-side device with a rapid processing speed and sharing a database with the information processing of a plurality of substations. SOLUTION: A substation-monitoring device 1 has a data-collecting means 6 for reading a signal from a detection means 0 at a constant measurement period, a data-processing means 7 for calculating and judging the read signal, a facility diagnosis data storage 8 for accumulating trend data and the judgment result of the data-processing means 7, a man-machine I/F 9 for displaying the guidance data from an information and upper-system monitoring device 2, and a transmission I/F 10 for making connection to a bidirectional transmission line 3. Then, a monitoring diagnosis is performed centrally at one location, by sharing guide data such as information for specifying causes and supporting recovery at time of failure detecting of a processing means on software, based on the facility diagnosis data and each equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting the temperature, current, operating characteristics, and the like of each electric device in a substation by using a sensor, and calculating and judging the state of the device based on data from the sensor. The present invention relates to a substation monitoring and diagnosing system for assisting a maintenance worker based on a system.

[0002]

2. Description of the Related Art FIG.
FIG. 2 is a block diagram showing a conventional substation equipment monitoring / diagnosing system described in Japanese Patent Publication No. 2; In this figure, reference numeral (5)
1) is a plant monitoring device set near the plant equipment, (52) is a display / input device on the plant control room side, (5)
3) The display of the plant monitoring device and the display on the plant control room side
This is a data transmission line laid between input devices. In the plant monitoring apparatus (51), reference numeral (54) is a process input means for periodically collecting signals from a sensor attached to the equipment, and (55) is a signal monitor required from data taken in by the process input means. Signal monitoring means for outputting data; (56) equipment diagnosis means for performing equipment diagnosis when the signal monitoring means detects an abnormality;
7) is a detailed inspection item search means for extracting necessary detailed inspection items and their contents based on the equipment diagnosis results, and (58) inputs the signal monitoring data, the equipment diagnosis results, and the detailed inspection items, and Display information extracting means for extracting effective display data, and (59) is a site-side transmitting means for transmitting the display data to the display / input device on the plant control room side.
On the plant control room side display / input device side (52),
Reference numeral (60) denotes a plant control room side transmission means for receiving display data, and (61) denotes a plant control room side display means for inputting the received display data and displaying it on a display unit (62).

Next, the operation of this conventional substation equipment monitoring / diagnosis system will be described. In the plant monitoring device (51), signals from various sensors attached to the equipment are taken in by the process input means (54), and the signal monitoring means (55) for monitoring the process data includes:
An abnormality is detected by comparing with a preset abnormality determination level for each device, and the monitoring data for equipment diagnosis is output to the equipment diagnosis means (56), and the monitoring data for abnormality display is output to the display information extracting means (58). I do. Equipment diagnostic means (5
In 6), equipment diagnosis is performed for identifying the state of the equipment and the cause of the abnormality based on the monitoring data for equipment diagnosis, and the equipment diagnosis result data is output to the detailed inspection item search means (57).
The detailed inspection item search means (57) retrieves necessary detailed inspection items based on the equipment diagnosis result, and displays the necessary detailed inspection items and the contents of each inspection item in the display information extracting means (58).
Output to The display information extracting means (58) receives the abnormality display monitoring data from the signal monitoring means (55) and the necessary detailed inspection information from the detailed inspection item searching means (57),
Display data effective for notifying the operator of the abnormality is extracted, and the display data is transmitted to the plant site transmission means (59).
Thus, the data is transmitted to the plant control room side display means (61) via the data transmission path (53) and the plant control room side transmission means (60), and is displayed on the display section (62).

[0004]

Since the conventional substation equipment monitoring / diagnosis system is configured as described above, when a plurality of plant facilities are monitored by a single upper man-machine interface (I / F), the plant For each monitoring device,
Establish a database for guidance such as equipment diagnosis information for grasping the status of each device based on signal monitoring data and identifying the cause when an abnormality is detected, and detailed inspection item information for recovery support, according to the plant equipment Needed. In addition to these databases, in order to create and store data files for each data processing means, high-speed hardware (H / W) and a large-capacity storage device are required. When building with general-purpose hardware (H / W) such as a controller,
The software (S / W) and database become complicated and large, and there is a possibility that the processing speed of the system will be reduced.

[0005] The present invention has been made to solve the above-described problems, and requires complicated software (H / W) when a general-purpose hardware (H / W) such as a programmable controller is applied to a monitoring device. S / W) processing and a large-capacity database are provided in a high-speed device at a high processing speed, and the database is shared with information processing means of a plurality of substations as much as possible. It is an object of the present invention to simplify the device configuration and to centrally monitor and diagnose a plurality of substations in one host system.

[0006]

SUMMARY OF THE INVENTION A substation equipment monitoring and diagnosis system according to the present invention simplifies the configuration of a monitoring device on a substation side, and performs monitoring and diagnosis of a plurality of substations at one command station. In addition, a display information search means based on equipment diagnosis data, and guidance data such as cause identification and recovery support information when an abnormality is detected in each device are shared by a higher system.

Further, a portable communication device such as a pager is used in combination with communication such as a personal computer communication for the purpose of speeding up the maintenance staff's response when an abnormality is detected, and a predictive judgment function for avoiding occurrence of a device abnormality and maintenance. In addition to the support guidance and the normal measurement cycle, a forced measurement function for real-time data collection by input from a man-machine interface is provided as needed.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration of a substation equipment monitoring and diagnostic system according to Embodiment 1 of the present invention. In FIG. 1, a substation equipment monitoring and diagnostic system according to this embodiment includes a substation equipment based on detection means (0) for detecting the state of various electric equipment in the substation equipment and an output signal from the detection means (0). A substation monitoring device (1) for diagnosing and monitoring the substation, connected to the substation monitoring device (1) via a bidirectional transmission line (3), and based on information from the substation monitoring device (1). A subordinate monitoring device (2) for monitoring and controlling the substation monitoring device (1). Detection means (0)
Is composed of a sensor (4) attached to various substation equipment and outputting an analog signal indicating the state of the substation, and a signal converter (5) for converting a signal from the sensor (4) into an analog signal. . The substation monitoring device (1) includes a data collection unit (6) that captures a signal from the detection unit (0) at a fixed measurement cycle, a data processing unit (7) that performs calculation and determination on the captured signal, A facility diagnostic data storage device (8) for storing trend data and the determination results of the data processing means (7), and a man-machine interface (I / I / O) for displaying information and guidance data from the host system monitoring device (2) in the substation. F) (9),
A transmission interface (I / F) (10) for connecting to the bidirectional transmission path (3) is provided. The upper system monitoring device (2) extracts appropriate guidance based on information transmitted from a plurality of substations and a transmission interface (I / F) (11) for connecting to the bidirectional transmission path (3). A guidance data storage device (13) to which state information and cause identification at the time of abnormality detection for each of the various electric devices and recovery support information and the like are input in advance;
Storage device for storing trend data of all substations (14)
And a man-machine interface (I / F) (15) for collectively displaying the information.

Next, the operation of the substation equipment monitoring / diagnosis system will be described. Failure of substation equipment to be monitored
When an abnormality occurs due to deterioration or the like, the phenomenon appears as a rise in the equipment surface temperature, a decrease in gas pressure, air pressure, or oil pressure, a change in the current value of the control current or a change in the energization time. Is detected. The weak signal from the sensor (4) is converted into an analog signal of 4 to 20 mA by a signal converter (5) installed in the vicinity of the sensor (4), and is taken in by a data collection means (6) at a constant period. The data processing means (7) detects an abnormality by comparing the captured sensor signal with a preset abnormality determination level for each device, and stores the sensor signal and the determination result in the storage device (8), the man-machine interface ( I / F) (9) and transmission interface (I / F)
F) Output to (10). Upon receiving the information, the equipment diagnostic data storage device (8) accumulates the sensor signal as trend data and accumulates the determination result as abnormality history data. In the man-machine interface (I / F) (9) in the substation, the latest information from the data processing means (7) and the trend data and abnormalities from the equipment diagnostic data storage device (8) are provided in response to a request from maintenance personnel. It displays history data or guidance data from a higher system via a transmission interface (I / F) (10). The sensor signal and the determination result from the substation monitoring device (1) of each substation are transmitted from the bidirectional transmission line (3) via the transmission interface (I / F) (11) in the higher system monitoring device (2). Is input to the display information search means (12). The display information searching means (12) stores guidance information for grasping an abnormal state of each device, identifying its cause, and supporting recovery based on information from the substation in a guidance data storage device (13).
From the upper-level man-machine interface (I
/ F) (14) and the transmission interface (I / F) (1
Output to 1). Furthermore, the sensor signals from each substation are
It is stored in the all substation trend data storage device (14) as a backup of the equipment diagnosis data. The guidance data output to the transmission interface (I / F) (11) is transmitted to the substation via the bidirectional transmission path (3). In a man-machine interface (I / F) (15), display information search means (12) is provided in response to a request from an operator.
Starting from the guidance data, the status and history of the equipment at each substation can be displayed collectively from the trend data storage device (14).

According to the above-described substation equipment monitoring / diagnosis system of the present invention, processing means on software (S / W) based on equipment diagnosis data, cause identification when each apparatus detects an abnormality, recovery support information, etc. By sharing the guidance data in the upper system, the configuration of the monitoring equipment at each substation can be simplified without impairing the function and processing speed of the system, and the monitoring and diagnosis of each substation can be performed by one location. It is possible to concentrate on the upper system.

Embodiment 2 In the first embodiment, information is transmitted only between the substation and the host system. However, in order to more quickly respond to maintenance when an abnormality occurs, for example, as shown in FIG. In the processing means (7), a transmitting device (21) for transmitting an abnormality detection signal to a portable communication device such as a pager for notifying maintenance personnel of the occurrence of an abnormality, and a telephone line for connecting to a communication line such as a telephone line. Communication interface (I / F) such as interface (22)
And With such a configuration, the maintenance person who has been notified of the occurrence of the abnormality can use a portable man-machine interface (I / F) such as a notebook computer from an unspecified remote location.
By connecting (23) to a communication line such as a telephone line and performing communication such as personal computer communication, it is possible to see the latest monitoring data of a substation in which an abnormality is detected even in a place other than the substation. .

Embodiment 3 The first embodiment is directed to a response after an abnormality due to a failure or deterioration of a substation device is detected, that is, post-maintenance. However, as shown in FIG. 3, for example, as shown in FIG. An abnormal arrival predicting means (31) for determining a period until reaching an abnormal level based on information accumulated in a trend data storage device (14) and a mathematical method, and maintenance support necessary for avoiding abnormalities in advance Provision of the storage device (32) storing data enables predictive maintenance before abnormality is detected.

Embodiment 4 The first embodiment is directed to data taken in at a predetermined fixed measurement cycle. For example, as shown in FIG. 4, the substation monitoring device (1) includes a forced measurement unit (41). , Man-machine interface (I / F) in substation
(9) Or real-time monitoring diagnosis different from the normal measurement cycle is required by the input from the higher-level man-machine interface (I / F) (15), that is, the setting of the substation, target device, and monitoring items. Can be performed according to

[0014]

As described above, according to the present invention, the processing means based on the equipment diagnosis data and the guidance data such as the cause identification and the recovery support information at the time of abnormality detection of each equipment are shared by the upper system. , The configuration of the monitoring equipment at each substation can be simplified without compromising the function and processing speed of the system, and the monitoring and diagnosis of each substation can be centrally performed by one upper system Becomes Further, since the data processing means further includes a transmitting device for transmitting an abnormality detection signal to the portable communication device when an abnormality is detected, it is possible to notify a maintenance person having a portable communication device such as a pager of the occurrence of the abnormality. Further, the data processing means
By providing a communication interface for extracting information by communication, a maintenance person who has been notified of the occurrence of an abnormality can carry a portable man-machine interface (I / F) such as a notebook computer from an unspecified remote location (23) Is connected to a communication line such as a telephone line to perform communication such as personal computer communication, so that the latest monitoring data of a substation in which an abnormality is detected can be viewed in a place other than the substation. Furthermore, the upper system monitoring device (2) determines the period until the abnormal level is reached based on the information accumulated in the all substation trend data storage device (14) and the mathematical method (abnormal arrival predicting means ( 31) and a storage device (3) in which maintenance support data necessary for avoiding abnormalities is stored in advance.
Provision of 2) enables predictive maintenance before an abnormality is detected. In addition, since the substation monitoring device (1) includes the forced measurement means (41), the man-machine interface (I / F) (9) in the substation or the man-machine interface (I / F) (I / F) (15) ), That is, the setting of the substation, the target device, and the monitoring item, real-time monitoring diagnosis different from the normal measurement cycle can be executed as needed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a substation equipment monitoring and diagnosis system according to a first embodiment of the present invention.

FIG. 2 is a block diagram of abnormality reporting means via a telephone line according to a second embodiment of the present invention.

FIG. 3 is a block diagram of a higher-order system having an abnormality prediction function and maintenance support data according to Embodiment 3 of the present invention.

FIG. 4 is a block diagram of a substation monitoring device having a forced measurement function according to a fourth embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a conventional substation equipment monitoring and diagnostic system.

[Explanation of symbols]

(0) detection means, (1) substation monitoring device, (2)
Host system monitoring device, (3) bidirectional transmission path, (4) equipment mounting sensor, (5) signal converter, (6) data collection means, (7) data processing means, (8) equipment diagnostic data storage device, (9) Substation-side man-machine interface I / F, (10) Substation-side transmission interface I / F, (11) Host-side transmission interface I / F, (12) Display information search means, (13) Guidance data storage device, (14) Trend data storage device for all substations, (15) Upper system side man-machine interface I / F, (21) Transmission device, (22) Communication interface I / F, (31) Prediction of abnormal arrival Means, (32) maintenance support data storage device, (41) forced measurement function, (51) plant monitoring device, (52)
Plant control room side display / input device, (53) Data transmission path, (54) Process input means, (55) Signal monitoring means, (56) Equipment diagnosis means, (57) Detailed inspection item search means, (58) Display Information extraction means, (59)
On-site transmission means, (60) Plant control room side transmission means, (61) Plant control room side display means, (62)
Display section.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yutaka Onishi 2-4-2-4 Shibata, Kita-ku, Osaka-shi, Osaka West Japan Railway Company (72) Inventor Tsuyoshi Kawashima 2-chome, Shibata, Kita-ku, Osaka, Osaka No. 4-24 Inside West Japan Railway Company (72) Inventor Teruo Nakasu 1-3-2 Higashikawasaki-cho, Chuo-ku, Kobe City, Hyogo Prefecture Inside West Japan Railway Company

Claims (10)

[Claims] 1. A monitoring and diagnostic system for detecting an abnormality of various electric devices in a substation facility, comprising: a detecting unit for detecting a state of the various electric devices; and a substation facility based on an output signal from the detecting unit. Substation monitoring device that performs diagnosis and monitoring, and is connected to the substation monitoring device via a bidirectional transmission path,
An upper-level monitoring device that monitors and controls the substation monitoring device based on information from the substation monitoring device, wherein the substation monitoring device captures a signal from the detection unit at a fixed measurement cycle. Collecting means, data processing means for calculating and judging the fetched signal, equipment diagnostic data storage device for accumulating trend data and judgment results of the data processing means, the information and guidance data from a higher-level monitoring device And a transmission interface for connecting to the two-way transmission line. The higher-level monitoring device comprises: a transmission interface for connecting to the two-way transmission line; and a plurality of substations. Display information retrieval means for extracting appropriate guidance based on information transmitted from a place, and the various electric devices Guidance data storage device that preliminarily inputs information on the state detection and cause identification at the time of abnormality detection, recovery support information, etc., a storage device that stores trend data of all substations, and a man who displays the information collectively A substation equipment monitoring / diagnosis system comprising a machine interface. 2. The substation equipment monitoring and diagnosing system according to claim 1, wherein said data processing means further comprises a transmitting device for transmitting an abnormality detection signal to a portable communication device when an abnormality is detected. 3. The data processing unit according to claim 1, further comprising a communication interface for allowing maintenance personnel to extract information by communication using a portable man-machine interface from an unspecified remote location. 3. The substation equipment monitoring and diagnostic system according to 2. 4. The substation equipment monitoring and diagnostic system according to claim 2, wherein said portable communication apparatus is a pager carried by a maintenance person. 5. The substation apparatus according to claim 3, wherein the portable man-machine interface is a portable personal computer, and the communication is a personal computer communication between the portable personal computer and the communication interface. Monitoring and diagnostic system. 6. The upper-level monitoring device includes an abnormal arrival predicting unit that determines a period until an abnormal level is reached based on accumulated trend data, and is necessary for avoiding an abnormality in the guidance data storage device. 2. The apparatus according to claim 1, wherein the maintenance information is stored.
The substation equipment monitoring and diagnostic system according to the above. 7. The substation monitoring device performs a real-time forced measurement function different from a normal measurement cycle by an input from a man-machine interface of the substation monitoring device or a man-machine interface of the higher-level monitoring device. The substation equipment monitoring and diagnostic system according to claim 1, further comprising: 8. The substation apparatus according to claim 1, wherein the detection unit includes a sensor attached to the various electric devices, and a signal converter that converts a signal from the sensor into an analog signal. Monitoring and diagnostic system. 9. The substation equipment monitoring and diagnostic system according to claim 8, wherein said signal converter converts a signal from said sensor into an analog signal of 4 to 20 mA. 10. The apparatus according to claim 1, wherein the various electric devices are switching devices, transformers, rectifiers, lightning arresters, and the like.
The substation equipment monitoring and diagnostic system according to the above.