JP2000184603A - Operation supporting device of ac-dc converting system and recording medium storing processing program thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restore failure of a system quickly. SOLUTION: A failure judging means 2 receives failure information, and specifies the failure kind from the failure information and failure judgment data defined previously in a failure judgment data preserving area 4. A fixed waveform data preserving area 3 preserves previously characteristic fixed waveform data. A man-machine output means 5 displays guidance and the characteristic fixed waveform data on a CRT device 206, based on types of informed failure. An operator judges a failure part position in detail while comparing indication on an image plane displayed on the CRT device 206 with the real waveform data on an oscilloscope 205 which are collected independently of the display.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive assist device for an AC / DC conversion system which provides guidance to an operator when a fault occurs in the AC / DC conversion system to identify a faulty part, and assists the drive. The present invention relates to a recording medium for recording a processing program.

[0002]

2. Description of the Related Art In an AC / DC conversion system used for an AC / DC power transmission system, when a circuit failure, equipment failure, abnormal operation, or the like occurs, a general failure of a device such as a thyristor valve, a DC reactor, or a filter constituting the AC / DC conversion system. The information is notified to the driving support device. The operator has identified the failure type based on the state of occurrence of the general failure information. After that, the operator analyzes the waveform data of each part collected by the oscilloscope installed at the site at the time of the failure, identifies the detailed part of the failed equipment, and performs recovery work on the equipment based on the details. Was.

[0003]

When a circuit failure, equipment failure, abnormal operation, or the like related to the AC / DC conversion system occurs, it is extremely difficult to perform an analysis for specifying a detailed failure portion from the waveform data. He relied on engineers for analysis. In addition, it took a lot of time to analyze the failed part.

Power system accidents have a great social impact,
Since quickness and reliability are required for recovery from an accident, there is an urgent need to automate waveform analysis, provide accurate guidance to operators, and train skilled engineers.

In view of the above, the present invention provides an operation support device of an AC / DC conversion system which presents information necessary for specifying a failed part to a driver when a failure occurs, and which can quickly and accurately specify the failed part. It is an object to provide a recording medium for recording a processing program of the device.

[0006]

According to a first aspect of the present invention, there is provided an AC / DC converter for converting power between a plurality of power systems by alternating between AC and DC in order to transmit DC power through a DC circuit. In the driving support device of the AC / DC conversion system that performs driving support of the conversion system, when a state change of each device of the AC / DC conversion system is collected as state change information, and a failure is detected based on the collected state change information, the failure is detected. Means for storing state change information as failure information, and referring to information in a failure determination data storage area for storing information necessary for identifying a failure site including at least the failure type, and determining the failure type based on the failure information. Determining means for searching a storage area for storing characteristic fixed waveform data for each fault type based on the fault type determined by this means; Means for extracting data is obtained by so and a failure part identification information output means for outputting to an output device fixed waveform data extracted by the means as a fault site specific information. According to this means, the failure type is determined based on the failure information, and the characteristic fixed waveform data is output to the output device as the failure site identification information based on the failure type. And it can be done easily and without relying on skilled technicians. Therefore, the accident can be recovered early.

According to a second aspect of the present invention, there is provided an operation support system for an AC / DC conversion system in which a plurality of power systems are mutually converted between an alternating current and a direct current in order to transmit a direct current through a direct current circuit to exchange power. In the operation support device of the AC / DC conversion system to perform, the state change of each device of the AC / DC conversion system is collected as state change information, and when a failure is detected based on the collected state change information, the detected state change information is replaced with the failure. First collecting means for storing information as information; second collecting means for collecting actual waveform data corresponding to the failure information recorded by the failure waveform recording device disposed in the AC / DC conversion system and storing the data in a storage area; The failure information collected by the first collection unit is referred to by referring to the information in the failure determination data storage area for storing various information necessary for specifying a failure part such as a type. Means for determining a failure type based on the failure type, searching a storage area for storing fixed waveform data characteristic for each failure type based on the failure type determined by the means, and extracting the corresponding fixed waveform data, 2 means for extracting the actual waveform data collected by the collection means, and comparing the actual waveform data extracted by this means with the extracted fixed waveform data, and outputting the fixed waveform data to the output device as failure site identification information In this case, a site specifying information output unit is provided. According to this means,
A failure type is determined based on the failure information, and characteristic fixed waveform data and actual waveform data are output to the output device as failure site identification information based on the failure type. As a result, the fixed waveform data and the actual waveform data are output to the output device in comparison with each other, so that it is possible to quickly and easily specify a failed portion, and furthermore, without relying on a skilled engineer.
Therefore, the accident can be recovered early.

According to a third aspect of the present invention, there is provided the driving assistance device for an AC / DC conversion system according to the second aspect, wherein the fixed waveform data and the actual waveform data are output to the output device in a superimposed manner, or the fixed waveform data is output. In the case where the data and the actual waveform data are compared and output to the output device, means for enabling the time axis to be moved and the scale of the output value to be changed are provided. According to this means, in addition to the effect of the second aspect of the present invention, the fixed waveform data and the actual waveform data are superimposed, so that the coincidence points and differences between the two data become remarkable, and the failure portion can be more easily specified. Can be done quickly.
In addition, since the time axis of both data can be moved and the scale of the output value can be changed, both data can be easily observed.

According to a fourth aspect of the present invention, in the driving support device for an AC / DC conversion system according to the second aspect, when a plurality of faults occur at the same time, information of a storage area for storing the importance for each fault type is stored. Refer to the means for outputting the failure site identification information to the output device in the order of importance, or refer to the storage area for storing the failure occurrence frequency for each failure type when multiple failures occur at the same time. A means is provided for outputting failure site identification information to the output device in the order of occurrence frequency. According to this means, when a plurality of faults occur, the fault site specifying information is notified in the order of importance, so that it is possible to take a countermeasure from a case where the fault site is required to be specified early. Alternatively, when a plurality of failures occur, the failure site identification information is notified in the order of occurrence frequency, so that it is possible to start from those which occur rarely and require inexperienced time to identify the failure site.

According to a fifth aspect of the present invention, there is provided an operation support system for an AC / DC conversion system in which a plurality of power systems are mutually converted between AC and DC so as to exchange power in order to transmit DC power through a DC circuit. In the operation support device of the AC / DC conversion system to be performed, a plurality of simulated fault information, which are status changes at the time of a failure of the system among the status changes of the respective devices of the AC / DC conversion system, and a fault waveform recording device arranged in the AC / DC conversion system The actual waveform data corresponding to the recorded simulated fault information, the information required to identify the fault location such as the fault type, and the characteristic fixed waveform data for each fault type are stored in the training storage area in advance. Means for saving, means for extracting one of the plurality of pieces of simulated fault information designated by the operator as training fault information, and means for storing actual waveform data corresponding to the training fault information. Means for extracting the fault type of the training fault information; means for extracting fixed waveform data corresponding to the fault type determined by the means; and means for extracting the extracted real waveform data and the extracted fixed waveform data. A failure site identification information output means for comparing the waveform data with the output data and outputting them to the output device as failure site identification information. According to this means, when fault information for training is specified, a simulated fault type is determined, and based on the simulated fault type, characteristic fixed waveform data and actual waveform data are output as fault site specifying information to the output device. Output to As a result, the actual waveform data and the fixed waveform data are output to the output device in comparison with each other, so that the training can be repeated and repeated in the same manner as the identification of the failed part by the actual machine, and the training effect can be expected.

According to a sixth aspect of the present invention, in the driving assistance device of the AC / DC conversion system according to the fifth aspect, each information of the information of the training storage area is edited by interactive processing. According to this means, since various pieces of information for training can be edited, various kinds of simulation information for specifying a failed part can be created, and the same training effect can be obtained by using an actual machine.

The invention according to claim 7 is the invention according to claims 1 to 5.
In any one of the inventions, there is provided a means for storing guidance information corresponding to the failure type, and the failure location identification information output means outputs guidance information belonging to the same failure type as the output failure location identification information. It was done.

[0013] The invention according to claim 8 provides an operation support of an AC / DC conversion system for mutually converting between AC and DC to exchange power in order to perform DC transmission between a plurality of power systems via a DC circuit. In a recording medium for recording a processing program of the driving assistance device of the AC / DC conversion system to be performed, the information is stored as fault information detected from state change information collected from each device of the AC / DC conversion system, and the fault recorded by the fault waveform recording device. The actual waveform data corresponding to the information is collected and stored, and the information necessary for specifying the fault site such as the fault type is referred to in advance to save the information, and the fault type of the fault information is determined. The actual waveform data stored based on the failure type is compared with the corresponding pre-stored characteristic fixed waveform data, and this is output to the output device as failure site identification information. In which a recording medium for recording the program having the functions.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a configuration diagram of an AC / DC conversion system to which the driving support device of the AC / DC conversion system according to the present invention is applied.

In FIG. 1, an AC power bus 100A connected to the A power system side 100A is connected to the A power system side 100A.
A is connected to the AC / DC converter 101A and AC / DC converter 101C on the A power system side by A, a second AC bus 109B, a plurality of disconnectors 108, a circuit breaker 107, a conversion transformer 102, and the like. In opposition to this, on the B power system side 100B, an AC bus 109C connected to the B power system side 100B is connected.
The AC / DC converter 101B and the AC / DC converter 101D on the B power system side are connected to each other by a circuit breaker 107, a conversion transformer 102, and the like.

The AC / DC converter 101 on the A power system side
The AC and DC converters 101B on the A and B power system sides form a first DC transmission line with the power transmission line 110A and the power transmission line 110B via the DC reactor 103, and the AC / DC converter 101B and the AC / DC converter 101B Either one is operated in the forward conversion and the other is operated in the reverse conversion, so that power is exchanged between the A power system side 100A and the B power system side 100B.

Similarly, the AC / DC converter 101 on the A power system side
AC and DC converter 101D on the side of C and B power systems
11A and the power transmission path 111D form a second DC power transmission path, and the AC / DC converter 101C and the AC / DC converter 101
B is operated in the forward conversion, and one of these is operated in the reverse conversion, so that the A power system side 100A and B
Power is exchanged with the power system side 100B.

It should be noted that, in FIG.
Uses a thyristor valve and alternately converts alternating current and direct current. The conversion transformer 102 supplies an appropriate voltage to the AC / DC converter 101 and insulates between the AC / DC circuits. The DC reactor 103 smoothes a DC current and suppresses a DC overcurrent. The AC filter 104 prevents a harmonic from flowing out to the AC system. The DC filter 105 prevents harmonics from flowing to the DC system. The phase adjustment equipment 106 supplies reactive power required for operation of the converter. Circuit breaker 10
Numeral 7 is for removing the fault circuit and opening and closing the AC circuit. The disconnecting switch 108 changes the circuit configuration.
1, some reference numerals are omitted.

FIGS. 2 and 3 show actual waveform data of each part when a failure occurs in the AC / DC conversion system of FIG.

FIG. 2 shows the case of a certain part of the AC / DC conversion system, in which a failure occurs at time t1, and the upper stage (A) has a DC voltage, the middle stage (B) has a DC current (high voltage side), and the middle stage (C )
Shows the respective waveforms of the DC current (low voltage side) and the lower part (D) of the DC ground line current.

FIG. 3 shows the case of another part of the AC / DC conversion system. At time t2, a DC voltage is shown in the upper stage (E), a DC current (high voltage side) is shown in the middle stage (F), and a middle stage ( G)
Shows the waveform of the DC current (low voltage side), and the lower part (F) shows the waveform of the DC ground line current.

FIG. 4 is a configuration diagram of a driving support device of the AC / DC conversion system according to the first embodiment of the present invention.

In FIG. 4, the driving support device 200 of the AC / DC conversion system includes a state change information receiving means 1, a failure determination means 2, a fixed waveform data storage area 3, a failure determination data storage area 4, a man-machine output. Means 5, a failure content display data storage area 6, a guidance data storage area 7, and a failure occurrence time storage area 8;
The AC / DC conversion system driving support device 200 and the AC / DC conversion system 201 are the information transmission device 202 and the information transmission device 20
3 and the transmission path 204. An oscilloscope device 205 is connected to the AC / DC conversion system 201,
A CRT device 206 is connected to the driving support device 200 of the AC / DC conversion system.

Here, the status change information receiving means 1 receives status change information including normal information generated in the AC / DC conversion system 201 via the information transmission device 202, the transmission path 204, and the information transmission device 203. .

The failure judging means 2 receives the state change information from the state change information receiving means 1 and specifies a failure type based on the state change information and the failure judgment information predefined in the failure judgment data storage area 4. It is.

The fixed waveform data storage area 3 stores fixed waveform data corresponding to each characteristic fixed waveform data number in advance.

The failure determination data storage area 4 stores failure information, a corresponding guidance number, and waveform data corresponding to each failure type in advance.

The man-machine output means 5 extracts guidance data and characteristic fixed waveform data based on the notified failure cause, guidance number, and characteristic fixed waveform data number, and displays them on the CRT device 206. is there. The failure content display data storage area 6 stores display data to be displayed on the CRT device 206. The guidance data storage area 7 stores guidance data corresponding to a guidance number.

In the above configuration, first, the AC / DC conversion system 2
The status change information of various devices generated in 01 is detected and collected by means (not shown) and transmitted to the information transmission device 202. The information transmission apparatus 202 creates transmission data based on the state change information and transmits the transmission data to the information transmission apparatus 203 via the transmission path 204.

Next, the status change information received by the information transmission device 203 is transmitted to the driving support device 2 of the AC / DC conversion system.
The status change information receiving means 1 of FIG. When the state change information is taken into the state change information receiving means 1,
It is determined whether or not the acquired state change information is failure information. When the failure information is determined, failure information is collected as shown in FIG.

For example, as shown in FIG. 5, state change information RY-1, state change information RY-2, and state change information RY.
-3, state change information RY-4 is sequentially generated. In this case, if a failure is determined by the determination of the first time t1 of the state change information RY-1, a failure state change timer (not shown) starts at the time Ta, and the state change information RY- 1, State change information RY-
2. Collect the state change information RY-3 as failure information.

At the subsequent time t2, the state change information R
When Y-4 occurs and it is determined that a failure has occurred, the failure state change timer operates, and the failure information is collected as failure information of another group in the time period Ta. At the time of the above collection, the failure occurrence time is added and stored in the failure occurrence time storage area 8.

Next, the fault judging means 2 is activated, and each fault information stored in the fault occurrence time storage area 8 is compared with the fault judgment data stored in the fault judgment data storage area 4 shown in FIG. The failure type is specified.

In the failure determination data storage area 4 shown in FIG. 6, the state of occurrence of failure information generated for each failure type, a guidance number, and a characteristic fixed waveform data number corresponding to the failure location are defined.

For example, in FIG. Explaining the case of No. 4, when RY-1, RY-2, RY-3 occurs as a relay state change when a failure occurs,
If the failure type is “Fault D”, the guidance number is “4”, and the number of the characteristic fixed waveform data corresponds to the failure part “a”, it corresponds to “6” and the failure part “b” Becomes “7”. The failure type, the guidance number, and the characteristic fixed waveform data number are notified to the man-machine output unit 5 by the failure determination unit 2.

Next, based on the failure type, the guidance number, and the characteristic fixed waveform data number notified to the man-machine output means 5, the man-machine output means 5 corresponds to the guidance number from the guidance data storage area 7. The guidance data is extracted, and the waveform data corresponding to the characteristic fixed waveform data number is extracted from the fixed waveform data storage area 3. The characteristic fixed waveform data storage area 3 is configured as shown in FIG. 7, and for each combination of the failure type and the failure site of the characteristic fixed waveform data,
The waveform data such as the voltage, current, and frequency at the time of the failure is stored. The failure type, guidance and characteristic fixed waveform data are displayed on the CRT device 206 as shown in FIG.

According to the screen display example 50 shown in FIG.
“Commutation failure” is displayed in the failure type display area 50a,
"Condition" and "Phenomenon" are displayed in the guidance display area 50b.
.. Are displayed, and a fixed waveform is displayed in the waveform data display area 50c.

On the other hand, at the site, actual waveform data is collected by an oscilloscope device 205 as a failure recording device arranged at various points of the AC / DC conversion system 201. The operator compares the display of the screen shown in FIG. 8 displayed on the CRT device 206 with the actual waveform data of the oscilloscope device 205 to determine a detailed failure site.

As described above, according to the first embodiment, the failure type is determined based on the failure information, and based on the failure type, the characteristic fixed waveform data and the guidance information are used as failure site identification information as the CRT device. Output to In this case, as can be compared with the separately recorded real waveform data,
Since the failure site identification information is output to the CRT device,
The failure site can be quickly and easily specified, and can be performed without relying on a skilled engineer. Therefore, the accident can be recovered early.

FIG. 9 is a block diagram of a driving support device of an AC / DC conversion system according to a second embodiment of the present invention.

Referring to FIG. 9, FIG.
The same reference numerals indicate the same or corresponding functional parts.

In the second embodiment, an actual waveform data receiving means 9 and an actual waveform data storage area 10 are additionally provided in the driving support device 200 of the AC / DC conversion system of the first embodiment.
The characteristic fixed waveform data according to the embodiment and the actual waveform data collected from the oscilloscope device 205 are combined with the CRT device 206.
It is characterized in that it is displayed and output so as to be compared with.

Here, the actual waveform data receiving means 9 receives the actual waveform data transmitted from the oscilloscope device 205 disposed at the site, and saves it in the actual waveform data storage area 10. The actual waveform data storage area 10 stores actual waveform data for each actual waveform data number.

In FIG. 9, actual waveform data such as the voltage, current, frequency, etc. of each part is constantly or periodically transmitted by the oscilloscope device 205 to the information transmission device 202 and the transmission line 2.
04, via the information transmission device 203, input to the driving support device 200A of the AC / DC conversion system. The actual waveform data is received by the actual waveform data receiving means 9 and stored in the actual waveform data storage area 10 shown in FIG. In the storage in the real waveform data storage area 10, as shown in FIG. 10, real waveform data in a time zone of about one hour past from the current time is stored for each real waveform data number.

Next, a process of extracting the actual waveform data for several minutes before and after the occurrence of the failure from the actual waveform data storage area 10 is performed by the man-machine output means 5. In this process, the number of the actual waveform data such as current, voltage, frequency, etc., is added to the failure determination data in advance for each type of failure that has occurred and for a plurality of failure sites corresponding to the failure type, and based on the number, Then, the actual waveform data is extracted from the actual waveform data storage area 10. In addition to the fault type, guidance, and characteristic fixed waveform data of the first embodiment, the CRT as shown in a screen display example 51 shown in FIG.
They are displayed side by side on the device 206.

Thus, the characteristic fixed waveform data and the actual waveform data can be displayed side by side on the same screen and displayed on the CRT screen, so that it is easy to specify the failure site from the waveform data.

As described above, according to the second embodiment, the failure type is determined based on the failure information, and the characteristic fixed waveform data, the actual waveform data, and the guidance information are used to specify the failure part based on the failure type. The information is output to the CRT device as information. As a result, the fixed waveform data and the actual waveform data are output to the CRT device in comparison with each other, so that it is possible to quickly and easily specify a failed portion, and further, without relying on a skilled engineer. Therefore, the accident can be recovered early.

Next, a third embodiment of the present invention will be described with reference to FIGS.

The third embodiment is provided with means for displaying the characteristic fixed waveform data and the actual waveform data obtained by the second embodiment so as to be overlapped by the man-machine output means 5.

Specifically, with the same configuration as shown in FIG.
The man-machine output means 5 includes a fixed waveform data storage area 3
From the real waveform data storage area 10, and the corresponding real waveform data is displayed on the same screen so as to be overlapped on the same screen and output to the CRT device 206. Perform processing. As a result, screen display example 5 of the CRT device 206 shown in FIG.
As shown in 2, the actual waveform data of the current and the fixed waveform data are output so as to overlap, and the actual waveform data of the xxx current and the fixed waveform data are output so as to overlap. As a result, a part different from the part where the two data coincide with each other is remarkably recognized, as compared with the case of FIG.

Further, in the third embodiment, when comparing the actual waveform data obtained by the second embodiment with the fixed waveform data, the time axis or the scale of the measured value can be changed. Can be provided.

More specifically, with the same configuration as shown in FIG.
The man-machine output means 5 includes a fixed waveform data storage area 3
When the fixed waveform data is read from the CRT device 206 and displayed in comparison with the screen of the CRT device 206, the fixed waveform data is enlarged and displayed by touching the enlargement button 53a as in a screen display example 53 shown in FIG. In this case, reduce button 5
If 3b is touched, the fixed waveform data is reduced. Touching the right button 53c moves the time axis to the right, and touching the left button 53d moves the time axis to the left. This can be similarly performed for actual waveform data. As a result, the comparison between the actual waveform data and the fixed waveform data can be clarified, and the portions where the two data coincide with each other and the difference can be understood, so that the failure site can be easily specified.

As described above, according to the third embodiment, the second
In addition to the operation of the embodiment, since the fixed waveform data and the actual waveform data are superimposed, the coincidence and the difference between the two data become remarkable, and the failure portion can be more easily and quickly specified. In addition, since the time axis of both data can be moved and the scale of the output value can be changed, both data can be easily observed.

Next, a fourth embodiment of the present invention will be described with reference to FIG.

In the fourth embodiment, when a plurality of faults occur at the same time, waveform data, fault types, and guidance are displayed and output in accordance with the predetermined importance of the fault information.

More specifically, in the failure determination data storage area 4A shown in FIG. 14 similar to that shown in FIG. The importance 4Aa is defined and set in advance in correspondence with 1. The failure determination means 2 determines a failure at a plurality of periods, and sends the failure type and the like to the man-machine output means 5 with the priority of 4Aa shown in FIG.

When the failure type and the like are sent from the failure determination means 2, the man-machine output means 5 displays and outputs the information to the CRT device 206 in descending order of importance.

According to this configuration, the information regarding the most necessary failure is notified first, so that an appropriate response can be taken, and a countermeasure can be taken sequentially without confusion when a plurality of failures occur.

In the fourth embodiment, when a plurality of faults occur, the waveform data, the fault type, and the guidance can be displayed and output in the order of the least frequent occurrence of the fault type.

More specifically, in the second embodiment, as shown in FIG. 15 similar to FIG. 6, the failure determination data defined in the failure determination data The frequency of occurrence of the generated failure is made storable. The past occurrence frequency is updated when the failure determination means 2 determines the failure type.

Further, when a plurality of failures are generated in the man-machine output means 5 and a plurality of display requests for the corresponding failure type, waveform data, and guidance to the CRT device 206 are received,
According to the frequency of occurrence of the failure type, processing for displaying the waveform data, the failure type, and the guidance of the failure type with a low frequency of occurrence on the screen is added, and even if a plurality of faults occur, the processing of displaying and outputting the data in the order of the low frequency of occurrence is performed.

As described above, according to the fourth embodiment, when a plurality of faults occur, the fault site specifying information is notified in descending order of importance. You can take action. Or,
When multiple failures occur, the failure location identification information is notified in ascending order of occurrence frequency, so it is possible to start from the ones that occur infrequently and are assumed to require time due to inexperience in identifying the failure location. Work efficiently.

FIG. 16 is a configuration diagram of a driving support device of an AC / DC conversion system according to a fifth embodiment of the present invention.

In FIG. 16, the same reference numerals as those in FIG. 4 showing the first embodiment denote the same or corresponding parts.
In the fifth embodiment shown in FIG. 6, the state change information receiving means 1 of FIG.
And a training accident input unit 12 and a training actual waveform data storage area 13 are additionally provided to simulate failure information from state change information of each device to perform a driving training for specifying a failed part. It has features.

First, before starting the training, the training trainer sets the actual waveform No. indicating the storage position of the real waveform data storage area 13 for training. And failure information to be simulated as failure training for the AC / DC conversion system. Further, the fault number indicating the storage location of the training accident pattern data defining the aggregation of the fault information generated in advance by the training trainer. Is input from the CRT device 206.

When the training trainer makes a training start request from the CRT device 206, the training accident input means 12
Simulated fault information is generated with reference to the training accident pattern data storage area 11. The failure determination means 2 transfers the same failure information as the data in the failure determination data storage area 4 shown in FIG. The man-machine output means 5 outputs the fixed waveform data and the guidance data corresponding to the failure to be trained to the CRT device 206 together with the output of the actual waveform No. The actual training data for training is extracted from the actual training data storage area 13 shown in FIG. The operator uses the CRT device 20
A failure site is determined by observing each waveform displayed in 6. Thus, the actual waveform data for training is compared with a plurality of fixed waveform data depending on the failure location, and the operator is caused to determine the failure location.

As described above, according to the fifth embodiment, when fault information for training is specified, a simulated fault type is determined, and characteristic fixed waveform data and actual waveform data are determined based on the simulated fault type. And the guidance information are output to the CRT device as failure site identification information. As a result, the actual waveform data and the fixed waveform data are output to the CRT device in comparison with each other, so that the training can be repeated and repeated in the same manner as the identification of the failed part by the actual machine, and the training effect can be expected.

FIG. 18 is a block diagram of a driving support device of an AC / DC conversion system according to a sixth embodiment of the present invention.

In FIG. 18, the same reference numerals as those in FIG. 16 showing the fifth embodiment denote the same or corresponding parts.

The driving support device 200C of the AC / DC conversion system according to the sixth embodiment has a failure determination data storage area 4
Guidance data storage area 7 in addition to the human-machine output means 5 and the training accident pattern data storage area 11
C1, guidance data storage area 7C2, fixed waveform data storage area 3C1, and fixed waveform data storage area 3
C2, an actual training data storage area 13C1 and an actual training data storage area 13C2 are provided,
The training trainer adds editing functions such as creating, changing, adding, and deleting actual waveform data for training, training accident pattern data, characteristic fixed waveform data, failure determination data, and guidance data.

That is, the education and training trainer uses the man-machine output means 5 to newly create the data of the fixed waveform data storage area 3C2 for training and the data of the guidance data storage area 7C2 from the CRT device 206.
Further, the data of the failure determination data storage area 4 and the training accident pattern data storage area 11 are edited, and the data of the existing fixed waveform data storage area 3C1 and the data of the guidance data storage area 7C1 are changed.

For example, in the editing of fixed waveform data, FIG.
9, a waveform No. 9 to be edited is displayed. The input area 54a is designated, and the waveform data is displayed on the CRT device 206. Then, the input cursor 54b is moved to the waveform position to be changed. Next, a data input area 54c for the voltage, current, frequency, and the like is displayed. The waveform data is edited by inputting the values of the displayed elements.

Further, the data of the fixed waveform data storage area 3C1, which is the basis of editing, is transferred from the CRT device 206 using the man-machine output means 5 to the fixed waveform data storage area 3C.
It is copied to C2 and displayed as the screen shown in FIG. Thus, data is created and stored in the new fixed waveform data storage area 3C2. The data in the training real waveform data storage area 13C1 is also edited in the same manner as the data in the fixed waveform data storage area 3C1, and stored in the training real waveform data storage area 13C2 shown in FIG.

The guidance data storage area 7C1
20 is created in correspondence with one failure type in which a plurality of state change information are aggregated as shown in FIG. Specifically, the guidance No. for editing is displayed. Input area 55a is arbitrarily specified, and data necessary for the guidance
When input from the RT device 206, a screen display example 55 of the guidance data shown in FIG. 20 is obtained.

Using the man-machine output means 5 from the CRT device 206, the data in the guidance data storage area 7C1 to be edited is converted to the guidance data storage area 7C.
Copy to C2. Then, from the guidance data screen display example 55 shown in FIG. 20, each input 55a, 55b is made and edited, and data is created and stored in the new guidance data storage area 7C2.

The data in the failure determination data storage area 4 is
As shown in a screen display example 56 shown in FIG. The input area 56a is designated from the CRT device 206, and the failure type, failure information, guidance waveform No. 56b
Enter Further, guidance data and waveform data No. corresponding to each failure are provided. To display the specified waveform data and guidance when the failure occurs.

The data of the training accident pattern data storage area 11 is stored in the edited fault No. as shown in a screen display example 57 shown in FIG. And the actual waveform No. for training. Is created correspondingly. First, a training pattern input area 57a to be edited is arbitrarily designated from the CRT device 206, and input to each information input area 57b in which failure information to be simulated and real waveform data are combined and edited and registered.

As described above, according to the sixth embodiment, it is possible to edit the fault information for training, the fixed waveform data for training, the actual waveform data for training, and the guidance for training. Various kinds of simulation information for identification can be created, and the same training effect can be obtained by using an actual machine.

Next, a seventh embodiment of the present invention will be described.

The means described in any of the first to sixth embodiments described above can be used as a processing program that can be executed by a computer, for example, on a recording medium such as a magnetic disk, an optical disk, or a semiconductor memory. It can be written and applied to various devices. The computer reads the program recorded on the recording medium, and executes the sequential processing by controlling the operation by the program.

[0082]

As described above, according to the present invention,
In the event of a failure such as a circuit failure, equipment failure, or abnormal operation of the AC / DC conversion system, detailed analysis of the failed part from the waveform data at that time can be easily performed in a short time without requiring a skilled technician. It can also train engineers.

[Brief description of the drawings]

FIG. 1 is an overall system diagram of an AC / DC conversion system to which a driving support device for an AC / DC conversion system according to the present invention is applied.

FIG. 2 is an example of first waveform data at the time of failure obtained from the AC / DC conversion system of FIG. 1;

FIG. 3 is an example of second waveform data at the time of failure obtained from the AC / DC conversion system of FIG. 1;

FIG. 4 is a configuration diagram of a driving support device of the AC / DC conversion system according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram showing an operation of a state change information receiving means provided in the driving support device of the AC / DC conversion system of FIG. 4;

6 is a configuration diagram of a failure determination data storage area provided in the driving support device of the AC / DC conversion system of FIG. 4;

7 is a configuration diagram of a fixed waveform data storage area provided in the driving support device of the AC / DC conversion system of FIG. 4;

8 is a screen display example displayed on a CRT device provided in the driving support device of the AC / DC conversion system of FIG. 4;

FIG. 9 is a configuration diagram of a driving support device of an AC / DC conversion system according to a second embodiment of the present invention.

10 is a configuration diagram of an actual waveform data storage area provided in the driving support device of the AC / DC conversion system of FIG. 9;

11 is a screen display example displayed on a CRT device provided in the driving assistance device of the AC / DC conversion system of FIG. 9;

FIG. 12 is a first screen display example showing the third embodiment of the present invention.

FIG. 13 is a second screen display example showing the third embodiment of the present invention.

FIG. 14 is a configuration diagram of a first failure determination data storage area according to a fourth embodiment of the present invention.

FIG. 15 is a configuration diagram of a second failure determination data storage area according to the fourth embodiment of the present invention.

FIG. 16 is a configuration diagram of a driving support device of an AC / DC conversion system according to a fifth embodiment of the present invention.

17 is a configuration diagram of an actual training data storage area provided in the driving assistance device of the AC / DC conversion system in FIG. 16;

FIG. 18 is a configuration diagram of a driving support device of an AC / DC conversion system according to a sixth embodiment of the present invention.

FIG. 19 is an example of a waveform data edit screen according to the sixth embodiment of the present invention.

FIG. 20 is an example of a guidance data editing screen showing the sixth embodiment of the present invention.

FIG. 21 is an example of a failure determination data editing screen showing the sixth embodiment of the present invention.

FIG. 22 is an example of a training accident pattern editing screen showing the sixth embodiment of the present invention.

[Explanation of symbols]

 1 Status change information receiving means 2 Failure determination means 3 Fixed waveform data storage area 4 Failure determination data storage area 5 Man-machine output means 6 Failure content display data storage area 7 Guidance data storage area 8 Failure occurrence time storage area 9 Real waveform data reception Means 10 Real waveform data storage area 11 Training accident pattern data storage area 12 Training accident input means 13 Actual training data storage area 100 Power system 101 AC / DC converter 102 Conversion transformer 103 DC reactor 104 AC filter 105 DC filter 106 Phase adjustment equipment 107 Circuit breaker 108 Disconnector 109 Busbar 110, 111 Power transmission line 200 Operation support device for AC / DC conversion system 201 AC / DC conversion system 202, 203 Information transmission device 204 Transmission line 205 Oscilloscope device 206 CRT device

Continuing on the front page (72) Inventor Riki Terao 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu Plant Co., Ltd. 5G066 AA09 AE01 AE03 AE05 AE07 AE09

Claims (8)

[Claims] 1. An AC / DC conversion system for supporting the operation of an AC / DC conversion system for mutually converting between AC and DC to exchange power in order to transmit DC between a plurality of power systems via a DC circuit. In the driving support apparatus, means for collecting state change of each device of the AC / DC conversion system as state change information, and when detecting a failure based on the collected state change information, storing the detected state change information as failure information. Means for determining a failure type based on the failure information by referring to information in a failure determination data storage area for storing information necessary to specify a failure site including at least a failure type; Means for searching a storage area for storing fixed waveform data characteristic for each failure type based on the failure type, and extracting the corresponding fixed waveform data, Driving support system AC-DC conversion system, characterized in that it comprises a failure part identification information output means for outputting to an output device fixed waveform data extracted as the failure site specific information by means of. 2. An AC / DC conversion system for assisting operation of an AC / DC conversion system for mutually converting between AC and DC to perform DC power transmission between a plurality of power systems via a DC circuit and to exchange power. In the driving support apparatus, a state change of each device of the AC / DC conversion system is collected as state change information, and when a failure is detected based on the collected state change information, the detected state change information is stored as failure information. First collecting means; second collecting means for collecting actual waveform data corresponding to the failure information recorded by the failure waveform recording device arranged in the AC / DC conversion system and storing the data in a storage area; The failure information collected by the first collection means is referred to by referring to information in a failure determination data storage area for storing various information necessary for specifying a failure part of Means for determining the fault type based on the fault type, and searching a storage area for storing fixed waveform data characteristic for each fault type based on the fault type determined by the means, and extracting the corresponding fixed waveform data, Means for extracting the actual waveform data collected by the second collecting means; and comparing the actual waveform data extracted by the means with the extracted fixed waveform data and outputting them as fault site identification information. And a failure site identification information output means for outputting the information to the AC / DC conversion system. 3. A means for outputting the fixed waveform data and the actual waveform data to the output device in a superimposed manner, or comparing the fixed waveform data with the actual waveform data and outputting the data to the output device. 3. The driving assistance device for an AC / DC conversion system according to claim 2, further comprising means for enabling a time axis to be moved and a scale of an output value to be changed in such a case. 4. When a plurality of failures occur at the same time,
A means for outputting the failure site identification information to the output device in the order of importance by referring to information in a storage area for storing the importance for each failure type, or a failure type when a plurality of failures occur at the same time. 3. The driving support device for an AC / DC conversion system according to claim 2, further comprising: a unit that outputs the failure location specifying information to an output device in the order of the failure occurrence frequency with reference to a storage area for storing the failure occurrence frequency for each. . 5. An AC / DC conversion system for assisting the operation of an AC / DC conversion system for mutually converting between AC and DC to perform DC power transmission between a plurality of power systems via a DC circuit and to exchange power. In the driving support apparatus, a plurality of simulated failure information, which are state changes at the time of a failure of the system among the state changes of each device of the AC / DC conversion system, and are recorded by a failure waveform recording device arranged in the AC / DC conversion system. The actual waveform data corresponding to the simulated failure information, the information necessary for specifying the failure site such as the failure type, and the characteristic fixed waveform data for each failure type are stored in the training storage area in advance. Means for extracting one of the plurality of pieces of simulated fault information specified by the operator as training fault information; and an actual waveform corresponding to the training fault information. Means for extracting data; means for determining a fault type of the training fault information; means for extracting fixed waveform data corresponding to the fault type determined by the means; And a failure site identification information output means for comparing the extracted fixed waveform data with the extracted fixed waveform data and outputting them as failure site identification information to an output device. 6. The driving assistance device for an AC / DC conversion system according to claim 5, wherein each information stored in the training storage area is edited by interactive processing. 7. A device for storing guidance information corresponding to a failure type, wherein the failure site identification information output unit includes:
2. The output including guidance information belonging to the same failure type as the failure location identification information to be output.
A driving support device for the AC / DC conversion system according to any one of the above-mentioned items. 8. An AC / DC conversion system for assisting the operation of an AC / DC conversion system for mutually converting between AC and DC to perform DC power transmission between a plurality of power systems via a DC circuit and to exchange power. In a recording medium for recording a processing program of the driving support device, the failure information detected from state change information collected from each device of the AC / DC conversion system is stored, and the failure information corresponding to the failure information recorded by the failure waveform recording device is stored. Collecting and storing actual waveform data to be performed, and referring to information pre-stored for information necessary for specifying a failure site such as a failure type, determining the failure type of the failure information, and determining the determined failure type. Compare the stored real waveform data and the corresponding pre-stored characteristic fixed waveform data based on the
A recording medium for recording a processing program having a function of outputting this as failure site identification information to an output device.