JP2003037936A - Testing apparatus using combined power system simulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a testing apparatus using a combined power system simulator capable of easily testing. SOLUTION: The combined power system simulator 3 comprises an analog power system simulator 1 and a digital power system simulator 2, is connected to an apparatus to be tested 7 and tests. The combined power system simulator 3 is controlled by a simulator controlling computer 8 and tests the apparatus to be tested 7 in accordance with conditions set by the simulator controlling computer 8. Since the simulator controlling computer 8 sets the conditions and controls, the conditions can be easily set and modified and the test can be easily performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a test device using a composite power system simulator.

[0002]

2. Description of the Related Art Conventionally, when testing a device under test (for example, a frequency conversion device), for example, JP-A-3-25659
A composite type power system simulator such as that disclosed in the publication is used. FIG. 19 is a block diagram showing the configuration of a conventional test apparatus using such a composite power system simulator. In FIG. 19, a composite power system simulator 203 includes an analog power system simulator 201 and a digital power system simulator 202 that are individually provided.
And an A / D and D / A converter 204 for exchanging information with each other. The analog power system simulator 201 has, for example, an analog reduced model in which elements such as a generator model 1a, a control model 1b, a transformer model 1c, a load model 1d, and a relay model 1e are actually wired.

The analog power system simulator 201 and the digital power system simulator 202 are connected via an A / D and D / A converter 204. The analog-type power system simulator 201 and the digital-type power system simulator 202 exchange information via the A / D and D / A converters 204 to convert the system information stored in the system information storage device 211 into analog data. ,
By allocating the advantages of each digital individually, it is possible to simulate the phenomenon of a large-scale power system.

Such a composite power system simulator 2
When using 03, a simulation is performed by connecting the analog power system simulator 201 and the device under test 7 through the interface system 205. The measurement signal D1 to be measured output from the device under test 7 is the interface system 2
It is input to the measuring device 206 via 05. The measurement signal D2 to be measured output from the analog power system simulator 201 is directly input to the measuring device 206.

[0005]

The conventional test apparatus using the composite power system simulator is configured as described above, and the power system to be simulated by the analog power system simulator 201 and the digital power system simulator 202 ( It has been necessary to individually set the simulators 201 and 202, for example, the setting of the system), for example, the setting of frequency, voltage, current, power, impedance, and the like. Further, it is necessary to individually set the generator model 1a, the control model 1b, the transformer model 1c, and other mini-models of the analog power system simulator 201, which requires time.

Further, the data based on the measurement signals D1 and D2 measured in the test needs to be fetched from the measurement device 206 to a data management device (not shown) that manages the data, and the processing takes time. . Furthermore, when performing a test using the composite power system simulator 203, the operator of the composite power system simulator 203 needs to perform work at a place where the composite power system simulator 203 and the device under test 7 are located. It was Further, the device under test 7 is the composite power system simulator 203.
If it is located in another place, it is necessary to transport the device under test 7 to the place where the composite power system simulator 203 is located, and perform work such as re-installation and reconnection of the measuring device.

The present invention solves the above problems and provides a test apparatus using a composite type power system simulator which can easily perform a test and can easily manage the obtained data. The purpose is to

[0008]

In order to achieve the above object, a test apparatus using a composite power system simulator according to the present invention comprises a composite power system simulator and a control device. The composite power system simulator has an analog power system simulator, a digital power system simulator, and an interface device connecting both simulators, and the composite power system simulator is connected to a device under test. At the same time, the device under test is tested in real time according to the conditions controlled by the controller and set by the controller. Since the condition of the composite power system simulator can be set by the control device, the test can be easily performed.

A remote control device is provided which is connected to the control device through a communication line and controls the composite power system simulator through the control device to perform a test.
The operator can test the device under test by the composite power system simulator via the control device by the remote control device even at a place away from the control device, the composite power system simulator, or the device under test.

Further, the first hybrid type power system simulator, the first control device, the second hybrid type power system simulator, and the second control device are provided. The power system simulator is a first analog power system simulator, a first digital power system simulator, and a first interface that connects the first analog power system simulator and the first digital power system simulator. A second hybrid power system simulator, a second analog power system simulator, a second digital power system simulator, a second analog power system simulator, and a second digital system. And a second interface device for connecting to a power system simulator, wherein the first composite power system simulator is Is connected to the test apparatus,
The first device under test is tested in real time according to the conditions controlled by the first controller and set by the first controller, and the second hybrid power system simulator is connected to the second device under test. And is connected to the first controller via a communication line and controlled by the first or second controller to test the second device under test according to the conditions set by the first controller. The test is performed in parallel with the test of the first device under test by the first composite power system simulator. The two combined power system simulators can test the device under test according to the conditions set by the same control device.
It is possible to omit the work of creating the conditions set for one of the composite power system simulators. In addition, when the condition to be set is changed, it is reflected in both composite power system simulators, so that the changing operation is easy.

Further, the first hybrid power system simulator, the first control device, the second hybrid power system simulator, the second control device, and the coupling device are provided. The first composite type power system simulator connects a first analog type power system simulator, a first digital type power system simulator, a first analog type power system simulator and a first digital type power system simulator. A first interface device and a second
The hybrid power system simulator of No. 1 connects the second analog power system simulator, the second digital power system simulator, the second analog power system simulator, and the second digital power system simulator to each other. The second composite type power system simulator having two interface devices is connected to the device under test, and the power system to be tested in combination with the device under test is divided by a predetermined dividing unit And the other power system is shared by the first and second hybrid power system simulators, and the one and the other power systems are coupled by the coupling device in the dividing unit, and the first hybrid power system simulator is the first According to the conditions controlled by the control device of No. 1 and set by the first control device, the second hybrid power system simulator It is controlled by the second control device second
According to the conditions set by the control device, the device under test is tested in real time while transmitting data between the first and second hybrid power system simulators via the coupling device. By performing the test of the device under test by sharing one system with the first and second combined power system simulators, the device under test can be tested from the first combined power system simulator. Can be tested without moving it to near the first hybrid power system simulator.

And, it has a first composite type power system simulator, a first control device, a second composite type power system simulator, a second control device, and a coupling device. No. 1 composite power system simulator
An analog power system simulator, a first digital power system simulator, and a first interface device that connects the first analog power system simulator and the first digital power system simulator, The second composite power system simulator connects the second analog power system simulator, the second digital power system simulator, the second analog power system simulator, and the second digital power system simulator. The second composite type power system simulator having a second interface device is connected to the device under test, and the power system to be tested in combination with the device under test is divided by a predetermined dividing unit and divided. One and the other power system are shared by the first and second hybrid power system simulators. One and the other power system are coupled by the coupling device in the division unit, and the first hybrid power system simulator is controlled by the first control device and is controlled by the first control device according to the condition set by the first control device. Type electric power system simulator is controlled by the second control device, complies with the conditions set by the first control device, and
And, the device under test is tested in real time while transmitting data between the second hybrid power system simulator and the coupling device. By performing the test of the device under test by sharing one system with the first and second combined power system simulators, the device under test can be tested from the first combined power system simulator. Can be tested without moving it to near the first hybrid power system simulator. Further, both the first and second hybrid power system simulators perform the tests according to the conditions set by the first control device, so that the work of creating the conditions set in the second hybrid power system simulator can be omitted. You can

Further, the analog type power system simulator, the digital type power system simulator, and the device under test output a measurement signal to be measured during the test, and a storage device for storing data based on the measurement signal is provided. Is characterized by. By loading data based on the measurement signals to be measured by the analog power system simulator, the digital power system simulator, and the device under test into the storage device, data processing and management become easy.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. FIG. 1 is a block diagram showing the configuration of a test apparatus using a composite power system simulator that is an embodiment of the present invention, and FIG. 2 is a flow chart for explaining the operation. In FIG. 1, in the composite power system simulator 3, an analog power system simulator 1 and a digital power system simulator 2 are digital signal and analog signal interface 1
5 are connected and configured. The digital power system simulator 2 has, for example, an analog reduced model in which elements such as a generator model 1a, a control model 1b, a transformer model 1c, a load model 1d, and a relay model 1e are actually wired.

The digital signal and analog signal interface 15 is for exchanging data between the analog type power system simulator 1 and the digital type power system simulator 2. The simulator control computer 8 has a man-machine interface 9, a data processing device 10, a system information storage device 11 and a measuring device 14. Then, the simulator control computer 8 is connected to the composite power system simulator 3 and
A device under test 7 (for example, a frequency conversion device) is connected to the analog power system simulator 1 via an interface system 5. The composite power system simulator 3 and the simulator control computer 8 described above constitute a total power system simulator 16.

It should be noted that, in FIG. 1, the analog power system simulator 1 from the simulator control computer 8 is shown.
A control signal CS1 is sent to the analog power system simulator 1, a measurement signal DS1 to be measured is sent from the analog power system simulator 1 to the measuring device 14 of the simulator control computer 8, and a control signal is sent from the simulator control computer 8 to the digital power system simulator 2. CS2 is sent, and the measurement signal DS2 to be measured is sent from the digital power system simulator 2 to the measuring device 14. Further, the control signal CS3 is transmitted from the analog power system simulator 1 to the device under test 7 via the interface system 5.

Next, the operation will be described with reference to the flow chart of FIG. In order to set the system for the test, the simulator control computer 8 is based on the system information stored in the system information storage device 11 regarding, for example, test conditions.
System data is created in this area, and addresses assigned in advance in the analog power system simulator 1 and the digital power system simulator 2 are designated (step S1). Note that the system data includes, for example, frequency, voltage,
Analog type power system simulator 1 for data about the system to be simulated such as current, power, impedance, phase angle, etc.
And data for the digital type power system simulator 2 are converted.

Next, the simulator control computer 8
Sends system data from the analog type power system simulator 1 and the digital type power system simulator 2 to set the systems in the analog type power system simulator 1 and the digital type power system simulator 2 (step S2). It is necessary for the operator to perform the analog power system simulator 1 up to the analog power system simulator 1 and manually set the analog circuit. However, once the analog power system simulator 1 is set, it is not changed thereafter. Further, since the operation of the switch for making the system according to the test item, the initial setting of the circuit breaker, etc. can be realized by the information transmission from the simulator control computer 8, the operator goes to the analog type power system simulator 1 and performs it. No need.

Since the digital type power system simulator 2 is performed from the man-machine interface 9 of the simulator control computer 8, it is not necessary to go to the digital type power system simulator 2. Next, if necessary, the man-machine interface 9 is operated to adjust the constants of the model (mathematical model) in the digital power system simulator 2. Here, for example, fine adjustment is performed when necessary information cannot be actually obtained from system data that is a theoretical value, and model operation such as starting and stopping of a controller in the model is performed (step S
3).

When the system conditions are ready, the device under test 7
Is operated (step S4), and detailed conditions that differ depending on the test item are set from the man-machine interface 9 according to the test item (step S5). There are various test items, for example, a one-line ground fault or a three-phase ground fault. The man-machine interface 9 starts the test (step S6), and the measurement signals DS1 and DS2 to be measured are transmitted from the analog power system simulator 1 and the digital power system simulator 2 to the measuring device 14,
It is converted into data (step S7).

The data obtained from the measurement signals DS1 and DS2 are transmitted from the measuring device 14 to the data processing device 10 and stored (step S8), and it is checked whether or not there is an item to be tested (step S9). If any remain, the process returns to step S5 to repeat the test. If there is no item to be tested in step S9, the test ends.

By the above procedure, the system data is created once, and the system conditions set according to the test items are recorded in a file as electronic data, and after the test of one item is completed. If the conditions are automatically changed and the test is performed on the next test item, the overall test time can be shortened. Further, the measurement signal DS1 which is an analog signal and the measurement signal DS2 which is a digital signal can be taken in from the measuring device 14 to the data processing device 10 and can be centrally managed.

According to this embodiment, from the simulator control computer 8 to the composite power system simulator 3
System data is sent to the hybrid electric power system simulator 3 to set conditions such as the setting of the system in the composite power system simulator 3, and the composite power system simulator 3 tests the device under test according to the set conditions. It is easy to change and the test can be performed easily.

Embodiment 2. 3 and 4 show another embodiment of the present invention. FIG. 3 is a block diagram showing the configuration of a test apparatus using a composite power system simulator, and FIG. 4 is a flow chart for explaining the operation. Is. In FIG. 3, the data processing device 10 and the measuring device 1
4 is the same as the data processing device 10 and the measuring device 14 in FIG. 1 although the range of data to be handled is different. Also, the interface system 25 is the same as the interface system 5 of FIG. 1 although the range of data handled is different.

Then, the measurement signal DS3 to be measured is transmitted from the device under test 7 to the measuring device 14 of the simulator controlling computer 8 via the interface system 25. In addition, measurement signals DS1 and DS from the measuring device 14
In addition to 2, the measurement signal DS3 is converted into data, output to the data processing device 10, and managed. Since other configurations are the same as those of the first embodiment shown in FIG. 1, corresponding components are designated by the same reference numerals and description thereof will be omitted.

Next, the operation will be described with reference to the flowchart of FIG. The operation is almost the same as in the flowchart of FIG. 2, but as shown in FIG. 4, step S11 between step S6 and step S8 is slightly different. That is, in step S11, the measurement signals DS1 and DS2 are transmitted from the analog power system simulator 1 and the digital power system simulator 2 to the measuring device 14 and converted into data, and at the same time, the device under test 7 passes through the interface system 25. Measuring signal D to the measuring device 14
S3 is transmitted and converted into data.

Next, in step S8, the measuring device 1
The data converted based on the measurement signals DS1, DS2, DS3 to be measured in 4 are transmitted to the data processing device 10. Other steps are the same as those in the first embodiment shown in FIG. 2, and therefore, corresponding parts will be denoted by the same reference numerals and description thereof will be omitted.

In this embodiment, the measuring device 14
By taking the measurement signal DS3 to be measured from the device under test 7 into the analog power system simulator 1
Also, the data based on the measurement signal DS3 obtained from the device under test 7 can be verified and analyzed on the same time axis as the data based on the measurement signals DS1 and DS2 to be measured from the digital power system simulator 2. Further, the measurement signals DS1 and DS3 that are analog signals and the measurement signal DS2 that is a digital signal are transferred from the measurement device 14 to the data processing device 10.
Data can be managed easily because it can be captured and stored in the same electronic file.

Embodiment 3. 5 and 6 show another embodiment of the present invention. FIG. 5 is a block diagram showing the configuration of a test apparatus using a composite power system simulator, and FIG. 6 is a diagram for explaining the operation. It is a flowchart. In FIG. 5, a simulator control computer 28 as a remote control device has a man-machine interface 29, is located away from the simulator control computer 8, and is connected to the simulator control computer 8 by a LAN network 17 as a communication line. It is connected. In this embodiment, the integrated electric power system simulator 1 is controlled by a simulator control computer 28 which is located away from the simulator control computer 8.
The device under test 7 can be tested via the device 6.

Next, the operation will be described with reference to the flowchart of FIG. System data is created in the simulator control computer 8 based on the system information stored in the system information storage device 11 of the simulator control computer 8, and the analog type power system simulator 1 and the digital type power system simulator are pre-allocated. Two
The address inside is designated (step S21). Next, system data is sent from the simulator control computer 8 to the analog power system simulator 1 and the digital power system simulator 2 to set up the systems of the analog power system simulator 1 and the digital power system simulator 2 (step S22). ).

Next, if necessary, the man-machine interface 29 of the simulator control computer 28 is operated to adjust the constants of the model in the digital type power system simulator 2 or to adjust the model via the simulator control computer 8. Do the operation. This step S23 is
This is the same step as step S3 in FIG. 2 (step S23). When the system conditions are satisfied, the device under test 7 is operated (step S24).

Next, detailed conditions that differ depending on the test item are set from the man-machine interface 29 according to the test item (step S25). The test is started by the man-machine interface 29 (step S26), and the measurement signals DS1 and D1 are output from the analog power system simulator 1, the digital power system simulator 2 and the device under test 7.
S2 and DS3 are transmitted to the measuring device 14 and converted into data (step S27).

The data obtained from the measurement signals DS1, DS2, DS3 are transmitted from the measuring device 14 to the data processing device 10 and stored (step S8), and it is checked whether or not there is an item to be tested (step S29). ), And when it remains, it returns to step S25 and repeats a test. If there is no item to be tested in step S29, the test ends.

Since the simulator control computer 28 is connected to the simulator control computer 8 via the LAN network 17 in this way, the operator can operate the simulator even at a place far away from the simulator control computer 8 and the device under test 7. By operating the man-machine interface 29 of the control computer 28, a simulation, that is, a test of the device under test can be performed by the integrated power system simulator 16.
Therefore, it is possible to eliminate the time required for the operator to move to the place where the device under test 7 and the simulator control computer 8 are installed.

The simulator control computer 8
Is automatically sent from the simulator control computer 8 to the simulator control computer 28.
An operator at a place away from the computer can recognize it on the simulator control computer 28. When the simulator control computer 28 is performing a simulation, the information is automatically transmitted from the simulator control computer 28 to the simulator control computer 8 so that the simulator control computer 8 can recognize the information.

Fourth Embodiment 7 to 10 show another embodiment of the present invention. FIG. 7 is a block diagram showing the configuration of a test apparatus using a composite power system simulator, and FIGS. 8 to 10 explain the operation. It is a flowchart for doing. In this embodiment, the integrated power system simulator 16 and the integrated power system simulator 5 as shown in FIG.
The two devices 6 and 6 are connected to the device under test 7 and the device under test 47 so that the simulation can be performed in parallel.

In FIG. 7, the composite power system simulator 43 is configured by connecting an analog power system simulator 41 and a digital power system simulator 42 with a digital signal and analog signal interface 55. The digital signal and analog signal interface 55 is the analog power system simulator 41.
For exchanging data between the digital power system simulator 42 and the digital type power system simulator 42. The simulator control computer 48 has a man-machine interface 49.
And a measuring device 54.

These analog type power system simulator 4
1. Digital power system simulator 42, composite power system simulator 43, simulator control computer 48, measuring device 54, digital signal and analog signal interface 55 are analog power system simulator 1 and digital power system simulator in FIG. 2, the composite type power system simulator 3, the simulator controlling computer 8, the measuring device 14, the digital signal and the analog signal interface 15 are similar.

The simulator control computer 48 is connected to the composite power system simulator 43, and the device under test 47 (for example, frequency converter) is connected to the analog power system simulator 41 of the composite power system simulator 43. In addition, it is connected to the measuring device 54 of the simulator controlling computer 48 via the interface system 45. Further, the measuring device 54 of the simulator controlling computer 48 is
The simulator control computer 8 and the data processing device 10 are connected via an N network 17. The integrated power system simulator 43 and the simulator control computer 48 constitute a total power system simulator 56.

In FIG. 7, the control signal CS21 is sent from the simulator control computer 48 to the analog type power system simulator 41, and the measurement to be performed from the analog type power system simulator 41 to the measuring device 54 of the simulator control computer 48. The signal DS21 is sent. The control signal CS22 is sent from the simulator control computer 48 to the digital power system simulator 42, and the measurement signal DS22 to be measured is sent from the digital power system simulator 42 to the measuring device 54. Further, the control signal CS23 is transmitted from the analog power system simulator 41 to the device under test 47 via the interface system 45. Then, the measurement signal DS23 to be measured is transmitted from the device under test 47 to the measuring device 54 of the simulator control computer 48 via the interface system 45.

The measurement signals DS21, DS22, DS23 input to the measuring device 54 are converted into data and converted to L.
The data is output to the data processing device 10 of the simulator control computer 8 via the AN network 17, stored, and managed. Since other configurations are the same as those of the second embodiment shown in FIG. 3, corresponding components are designated by the same reference numerals and description thereof will be omitted.

Next, the operation will be described with reference to the flow charts of FIGS. First, in step S41, system data is created by the simulator control computer 8 using the system information stored in the system information storage device 11. Then, using this grid data in common, processing by the integrated power grid simulator 16 (step S4
2) and the process by the integrated power system simulator 56 (step S43) are performed in parallel. Then, the data obtained in step S42 is compared with the data obtained in step S43 (step S44).

Step S42, which is a process by the integrated power system simulator 16, has steps S2 to S6, S11, S8, and S9 as shown in the detailed steps of FIG. 9, and these steps are shown in the flowchart of FIG. It is the same operation as. That is, system data is sent from the simulator control computer 8 to the analog power system simulator 1 and the digital power system simulator 2,
The system is set (step S2).

Next, if necessary, the man-machine interface 9 of the simulator control computer 8 is operated to adjust the constants of the model in the digital power system simulator 2 and to operate the model (step S3).
When the system conditions are satisfied, the device under test 7 is operated (step S4), and detailed conditions that differ depending on the test item are set from the man-machine interface 9 according to the test item (step S5). The test is started by the man-machine interface 9 (step S6), the analog type power system simulator 1 and the digital type power system simulator 2
And measurement signals DS1, DS2, DS3 from the device under test 7
Is transmitted to the measuring device 14 and converted into data (step S11).

The data obtained from the measurement signals DS1, DS2, DS3 are transmitted from the measuring device 14 to the data processing device 10 and stored (step S8), and it is checked whether or not there is an item to be tested (step S9). ), And when it remains, it returns to step S5 and repeats a test.
If there is no item to be tested in step S9, the process goes to step S44 (FIG. 8).

Further, FIG. 10 shows detailed steps of step S43 which is a process by the integrated power system simulator 56. In FIG. 10, the grids of the analog power grid simulator 41 and the digital power grid simulator 42 are set based on grid data created by the simulator control computer 8 (step S52). Next, if necessary, the man-machine interface 49 is operated to adjust the constants of the model (mathematical model) in the digital power system simulator 42 and to operate the model (step S53). This step S53 can also be performed by operating the man-machine interface 9 of the simulator control computer 8. When the system condition is satisfied, the device under test 47 is operated (step S5
4) The detailed conditions that differ depending on the test item are set from the man-machine interface 49 according to the test item (step S55).

With the man-machine interface 49,
The test is started (step S56), the analog type power system simulator 41, the digital type power system simulator 4
2 and the device under test 47 from the measurement signals DS21, DS2
2, DS3 is transmitted to the measuring device 54 and converted into data (step S57). The obtained data is measured by the measuring device 5
4 to the data processing device 10 for storage (step S58).

Then, it is checked whether or not the item to be tested remains (step S59), and if it remains, the process returns to step S55 to repeat the test. If there is no item to be tested in step S59, the process proceeds to step S44 in FIG. Step S44
In, the data obtained in step S42 is compared with the data obtained in step S43.

In this embodiment, the integrated power system simulator 16 and the integrated power system simulator 56 use the same system data and the device under test 7 and the device under test 4 are tested.
Since it is possible to perform the test of No. 7, it is possible to omit the work of creating system data in the integrated power system simulator 56, that is, the creation of conditions for setting the integrated power system simulator 56. When the system data is changed, the integrated power system simulator 16 and the integrated power system simulator 56
Since it is reflected in both, the change work is easy.

Furthermore, in addition to the data obtained by the measuring device 14, the data obtained by the measuring device 54 also includes the data obtained by the data processing device 1.
Since it is taken into 0, it is easy to compare the data obtained by the integrated power system simulator 16 with the data obtained by the integrated power system simulator 56. Further, since the captured data is digital data, it is possible to compare them numerically, and it is possible to grasp how much the numerical difference is.

Embodiment 5. 11 to 15 show still another embodiment of the present invention, FIG. 11 is a block diagram showing the configuration of a test apparatus using a composite power system simulator, and FIGS. 12 to 14 explain the operation. It is a flowchart for doing. FIG. 15 is an equivalent circuit when the system is divided. In this embodiment, the system to be combined with the device under test is divided, and the divided system is shared by the integrated power system simulator 16 and the integrated power system simulator 76 to test the device under test in real time. Is.

In FIG. 11, the simulator control computer 68 has a man-machine interface 49, a data processing device 50, an interface system 51 and a measuring device 54. The man-machine interface 49, the data processing device 50, the interface system 51, and the measuring device 54 are the same as the man-machine interface 9, the data processing device 10, the system information storage device 11, and the measuring device 14 in FIG. The control computer 68 is similar to the simulator control computer 8.

The simulator control computer 68 is
The LAN is connected to the analog power system simulator 41 and the digital power system simulator 42.
It is connected to the simulator control computer 8 via a network 17. The composite power system simulator 43 is connected to the device under test 47 via the interface system 45. The integrated power system simulator 43 and the simulator control computer 68 constitute a total power system simulator 76.
The digital power system simulator 2 of the composite power system simulator 3 and the digital power system simulator 42 of the composite power system simulator 43 are connected by the network 18.

In FIG. 11, the control signal CS21 is sent from the simulator control computer 68 to the analog power system simulator 41, and the measurement to be performed by the analog power system simulator 41 to the measuring device 54 of the simulator control computer 68. The signal DS21 is sent. Control signal CS22 from simulator control computer 68 to digital power system simulator 42
Is sent, and the measurement signal DS22 to be measured is sent from the digital power system simulator 42 to the measuring device 54.
In addition, the measurement signal DS23 to be measured from the device under test 47
Measuring device 54 via the interface system 45
Sent to.

The measurement signals DS21, DS22, DS23 input to the measuring device 54 are converted into data, and the data processing device 5 of the simulator control computer 68 is converted.
It is output to 0, stored and managed. Since other configurations are the same as those of the fourth embodiment shown in FIG. 7, corresponding components are designated by the same reference numerals and description thereof will be omitted.

Next, the operation will be described with reference to the flow charts of FIGS. In this embodiment, the system to be tested in combination with the device under test is divided into one system and the other system at the connecting portion which is the dividing unit.
Then, from the connection portion, one system is connected to the digital power system simulator 2 of the composite power system simulator 3.
Then, the other system is set to the digital power system simulator 42 of the composite power system simulator 43. Simulation is performed in real time by combining these.

As a method of connecting the two simulators, for example, the Bergeron method can be used. This is because the propagation time tau is considered in the transmission line model,
The voltages and currents at the nodes k and m on both ends of one line (k, m) are Vk (t), Jkm (t) and Vm, respectively.
Assuming that (t) and Jmk (t), the observation point k departs at time (t-tau) and reaches the observation point m at time t, then Vk (t-tau) + Z · Jkm ( t−tau) = Vm (t) + Z · (−J mk (t)) (1) holds. However, the direction in which the current flows from each node is positive. From this, Jmk (t) = 1 / (Z · Vm (t)) + Lmk (t−tau) (2) Similarly, Jmk (t) = 1 / (Z · Vk (t)) + Lkm (t−tau) (3) However, Lmk (t-tau) =-1 / (Z * Vk (t-tau) -Jkm (t-tau) (4) Lkm (t-tau) =-1 / (Z * Vm ( t-tau) -Jmk (t-t au) (5).

From equations (4) and (5), the equivalent circuit of FIG. 15 can be obtained. In this equivalent circuit, node k
And the node m are independent, an equivalent current source is included, and each equivalent current source is determined from the voltage and current values in the past by tau. Therefore, by using this method for the connecting portion, the two composite power system simulators 3 and 43 are combined.
Can be combined. The two hybrid power system simulators 3 and 43 are coupled by the network 18 and data is transmitted between the digital power system simulator 2 and the digital power system simulator 42 to perform real-time simulation. I do.

Therefore, in FIG. 12, the integrated power system simulator 16, that is, the composite power system simulator 3 is shown.
(Step S61) and the integrated electric power system simulator 76, that is, the combined electric power system simulator 43 (step S62), are executed in parallel, and when the respective processes are completed, the data obtained by both are collected. Yes (step S63). The process (step S61) by the digital power system simulator 2 is shown in the flowchart of FIG. 13, which is similar to the flowchart shown in FIG. However, in this embodiment, since the case where the device under test 47 is tested is described, step S4 of operating the device under test 7 is omitted from the flowchart shown in FIG. Of course, the combined power system simulator 3 side can also be connected to the device under test 7 for testing.

The process (step S62) by the integrated power system simulator 76, that is, the composite power system simulator 43 is shown in the flowchart of FIG.
The composite power system simulator 3 in the flowchart shown in FIG. 4 is replaced with the composite power system simulator 43, and the same as the flowchart in FIG.

As described above, by performing the test of the device under test by sharing one system with the two simulators, the test can be performed without moving the device under test 47 near the composite power system simulator 3. , You can save time and money for traveling. In addition, since the space of the digital type power system simulator can be made small, a portable simple digital type power system simulator is placed near the device under test 7 or the device under test 47, and the device under test 7,
A method of performing a test of 47 and then incorporating the devices under test 7, 47 in a large-scale system by sharing the two composite power system simulators 3, 43 to test the device under test. With, it is possible to easily prepare for the test and perform the test.

Sixth Embodiment 16 to 18 show another embodiment of the present invention. FIG. 16 is a block diagram showing the configuration of a test apparatus using a composite power system simulator, and FIGS. 17 and 18 explain the operation. It is a flowchart for doing. In this embodiment, the system to be combined with the device under test is divided into one system and the other system, and system data is commonly taken in by the integrated power system simulator 16 and the integrated power system simulator 96, and integrated with the integrated power system simulator 16. The test is performed on the device under test 47 in real time by being shared with the power system simulator 96.

In FIG. 16, the simulator control computer 88 has the same data processing device 50 and measuring device 54 as those shown in FIG. The simulator control computer 88 is the composite power system simulator 4
3 is connected to the analog type power system simulator 41 and the digital type power system simulator 42, and L
It is connected to the simulator control computer 8 via the AN network 17. The composite power system simulator 43 is connected to the device under test 47 via the interface system 45.

The composite power system simulator 43 and the simulator control computer 88 constitute an integrated power system simulator 96. The digital power system simulator 2 of the composite power system simulator 3 and the digital power system simulator 42 of the composite power system simulator 43 are connected by the network 18.

Further, in FIG. 16, the control signal CS21 is sent from the simulator control computer 88 to the analog power system simulator 41, and the measurement to be performed from the analog power system simulator 41 to the measuring device 54 of the simulator control computer 88. The signal DS21 is sent. Control signal CS22 from simulator control computer 88 to digital power system simulator 42
Is sent, and the measurement signal DS22 to be measured is sent from the digital power system simulator 42 to the measuring device 54.
Then, the measurement signal DS2 to be measured from the device under test 47 to the measuring device 54 via the interface system 45.
3 is transmitted.

The measurement signals DS21, DS22, DS23 input to the measuring device 54 are converted into data and the data processing device 10 of the simulator controlling computer 8 is converted.
Is output to and managed. Since other configurations are the same as those of the fourth embodiment shown in FIG. 7, corresponding components are designated by the same reference numerals and description thereof will be omitted.

Next, the operation will be described with reference to the flow charts of FIGS. In this embodiment, the simulator control computer 8 creates system data based on the system information stored in the system information storage device 11 (step S81). Then, using this grid data in common, the grid data is first sent from the simulator control computer 8 to the analog power grid simulator 1 and the digital power grid simulator 2, and the analog power grid simulator 1 and the digital power grid simulator 2 are sent. The system is set (step S82).

Next, if necessary, the man-machine interface 9 of the simulator control computer 8 is operated to adjust the constants of the model in the digital power system simulator 2 or to adjust the model via the simulator control computer 8. The operation is performed (step S83). Since the device under test 7 is not connected in this embodiment,
There is no step of operating the device under test 7 (see step S4 in FIG. 4).

Further, in step S84, FIG.
The process shown in the flowchart of FIG. That is, the system of the analog power system simulator 41 and the digital power system simulator 42 is set based on the system data created by the simulator control computer 8 (step S841). Next, if necessary, the man-machine interface 9 of the simulator control computer 8 is operated to adjust the constants of the model in the digital power system simulator 42 and operate the model via the simulator control computer 88. (Step S8
42). Then, the device under test 47 is operated (step S843), and the process proceeds to step S85 in FIG.

Next, detailed conditions that differ depending on the test item are set from the man-machine interface 9 according to the test item (step S85). The test is started by the man-machine interface 9 (step S86), and the measurement signals DS1 and DS are output from the analog power system simulator 1, the digital power system simulator 2 and the device under test 7.
2, DS3 is transmitted to the measuring device 14 and converted into data (step S87).

The data obtained from the measurement signals DS1, DS2, DS3 are transmitted from the measuring device 14 to the data processing device 10 and stored (step S88), and it is checked whether or not there is an item to be tested (step S89). ), And when it remains, it returns to step S85 and repeats a test. If there is no item to be tested in step S89, the test ends.

In this embodiment, the system information is one and is unified, and the system data created from this system information is stored in the two composite power system simulators 3 and 43, that is, Integrated power system simulator 16 and integrated power system simulator 9
Use in 6. Therefore, it is possible to save the trouble of creating the system data. In addition, all the data based on the measurement signals to be measured obtained from the analog power system simulator 1, the analog power system simulator 41, the digital power system simulator 2, the digital power system simulator 42, and the device under test 47 are processed. By incorporating the data in the device 10, data processing becomes easy.

[0073]

Since the present invention is constructed as described above, it has the following effects.

A test apparatus using the composite power system simulator of the present invention has a composite power system simulator and a control device, and the composite power system simulator includes an analog power system simulator and a digital power system simulator. Type power system simulator and an interface device connecting both simulators, wherein the composite type power system simulator is connected to the device under test and controlled by the control device according to the conditions set by the control device. Since the test of the device under test is performed in real time, the conditions of the composite power system simulator can be set by the control device, and the test can be easily performed.

Since a remote control device is provided which is connected to the control device via a communication line and controls the composite power system simulator via the control device to perform a test, the operator is Even at a location away from the hybrid power system simulator or the device under test, the test of the device under test can be performed by the hybrid power system simulator via the control device by the remote control device. Therefore, the time required for the operator to move to the place where the device under test or the control device is placed can be saved.

Furthermore, it has a first composite type power system simulator, a first control device, a second composite type power system simulator, and a second control device. The power system simulator is a first analog power system simulator, a first digital power system simulator, and a first interface that connects the first analog power system simulator and the first digital power system simulator. A second hybrid power system simulator, a second analog power system simulator, a second digital power system simulator, a second analog power system simulator, and a second digital system. And a second interface device for connecting to a power system simulator, wherein the first composite power system simulator is Is connected to the test apparatus,
The first device under test is tested in real time according to the conditions controlled by the first controller and set by the first controller, and the second hybrid power system simulator is connected to the second device under test. And is connected to the first controller via a communication line and controlled by the first or second controller to test the second device under test according to the conditions set by the first controller. Since it is performed in parallel with the test of the first device under test by the combined power system simulator No. 1, the two combined power system simulators each test the device under test according to the conditions set by the same controller. It is possible to do so, and it is possible to omit the work of creating the conditions set in one of the composite power system simulators. In addition, when the condition to be set is changed, it is reflected in both composite power system simulators, so that the changing operation is easy.

Further, it has a first composite type power system simulator, a first control device, a second composite type power system simulator, a second control device and a coupling device. The first composite type power system simulator connects a first analog type power system simulator, a first digital type power system simulator, a first analog type power system simulator and a first digital type power system simulator. A first interface device and a second
The hybrid power system simulator of No. 1 connects the second analog power system simulator, the second digital power system simulator, the second analog power system simulator, and the second digital power system simulator to each other. The second composite type power system simulator having two interface devices is connected to the device under test, and the power system to be tested in combination with the device under test is divided by a predetermined dividing unit And the other power system is shared by the first and second hybrid power system simulators, and the one and the other power systems are coupled by the coupling device in the dividing unit, and the first hybrid power system simulator is the first According to the conditions controlled by the control device of No. 1 and set by the first control device, the second hybrid power system simulator It is controlled by the second control device second
According to the conditions set by the control device, and while performing data transmission between the first and second composite power system simulators via the coupling device, the device under test is tested in real time. By performing the test of the device under test by sharing one system with the first and second combined power system simulators, the device under test can be tested from the first combined power system simulator. Can be tested without being moved to the vicinity of the first composite power system simulator, and the cost and time required for moving the device under test can be saved.

Then, it has a first composite type power system simulator, a first control device, a second composite type power system simulator, a second control device, and a coupling device. No. 1 composite power system simulator
An analog power system simulator, a first digital power system simulator, and a first interface device that connects the first analog power system simulator and the first digital power system simulator, The second composite power system simulator connects the second analog power system simulator, the second digital power system simulator, the second analog power system simulator, and the second digital power system simulator. The second composite type power system simulator having a second interface device is connected to the device under test, and the power system to be tested in combination with the device under test is divided by a predetermined dividing unit and divided. One and the other power system are shared by the first and second hybrid power system simulators. One and the other power system are coupled by the coupling device in the division unit, and the first hybrid power system simulator is controlled by the first control device and is controlled by the first control device according to the condition set by the first control device. Type electric power system simulator is controlled by the second control device, complies with the conditions set by the first control device, and
Since the test of the device under test is performed in real time while transmitting the data between the second hybrid power system simulator and the second hybrid power system simulator, one system can be used as the first system.
Since the device under test can be tested by the first composite power system simulator by performing the test of the device under test by being shared between the second composite power system simulator and the second composite power system simulator, the device under test is tested by the first composite type power system simulator. The test can be performed without moving to the vicinity of the power system simulator, and the cost and time for moving the device under test can be saved. Further, both the first and second hybrid power system simulators perform the tests according to the conditions set by the first control device, so that the work of creating the conditions set in the second hybrid power system simulator can be omitted. You can

Further, the analog type power system simulator, the digital type power system simulator, and the device under test output the measurement signal to be measured at the time of the test, and the storage device for storing the data based on the measurement signal is provided. Therefore, by processing the analog power system simulator, the digital power system simulator, and the data based on the measurement signals to be measured by the device under test into the storage device, the processing and management of the data becomes easy.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a test apparatus using a composite power system simulator that is an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the test apparatus of FIG.

FIG. 3 is a block diagram showing a configuration of a test apparatus using a composite power system simulator that is another embodiment of the present invention.

4 is a flow chart for explaining the operation of the test apparatus of FIG.

FIG. 5 is a block diagram showing a configuration of a test apparatus using a composite power system simulator that is another embodiment of the present invention.

FIG. 6 is a flowchart for explaining the operation of the test apparatus of FIG.

FIG. 7 is a block diagram showing the configuration of a test apparatus using a composite power system simulator that is another embodiment of the present invention.

8 is a flowchart for explaining the operation of the test apparatus of FIG.

9 is a flow chart for explaining the operation of the test apparatus of FIG.

10 is a flow chart for explaining the operation of the test apparatus of FIG.

FIG. 11 is a block diagram showing a configuration of a test apparatus using a composite power system simulator that is another embodiment of the present invention.

12 is a flowchart for explaining the operation of the test apparatus of FIG.

13 is a flow chart for explaining the operation of the test apparatus of FIG.

14 is a flowchart for explaining the operation of the test apparatus of FIG.

FIG. 15 is an equivalent circuit when the system is divided.

FIG. 16 is a block diagram showing the configuration of a test apparatus using a composite power system simulator that is another embodiment of the present invention.

17 is a flowchart for explaining the operation of the test apparatus of FIG.

FIG. 18 is a flow chart for explaining the operation of the test apparatus of FIG.

FIG. 19 is a block diagram showing a configuration of a conventional test apparatus using a composite power system simulator.

[Explanation of symbols]

1,41 Analog type power system simulator, 2,42
Digital type power system simulator, 3,43 Complex type power system simulator, 5,45 Interface system, 7,47 Device under test, 8,28,48,6
8,88 Simulator control computer, 9,2
9,49 Man-machine interface 10,50
Data processing device, 11 system information storage device, 14, 54
Measuring device, 15, 25, 55 Digital signal and analog signal interface, 16, 56, 76, 96
Comprehensive power system simulator, 17 LAN network, 18 network.

Claims (6)

[Claims] 1. A hybrid electric power system simulator and a controller, wherein the hybrid electric power system simulator connects an analog electric power system simulator, a digital electric power system simulator, and both the simulators. An interface device, wherein the composite power system simulator is connected to the device under test and controlled in real time by the control device according to the conditions set by the control device. The test equipment using the hybrid power system simulator, which is to be performed in. 2. A remote control device, which is connected to the control device by a communication line and controls the composite power system simulator via the control device to perform a test.
A test device using the composite power system simulator described in. 3. A first hybrid power system simulator,
What has a 1st control apparatus, a 2nd composite type power system simulator, and a 2nd control apparatus, Comprising: The said 1st composite type power system simulator is a 1st analog type power system simulator. A first digital type power system simulator, and a first interface device that connects the first analog type power system simulator and the first digital type power system simulator, and the second composite type The power system simulator includes a second analog power system simulator, a second digital power system simulator, a second analog power system simulator, and a second digital power system simulator that connect the second analog power system simulator and the second digital power system simulator. And an interface device according to claim 1, wherein the first composite power system simulator is connected to the first device under test. The real time test of the first device under test according to the conditions controlled by the first control device and set by the first control device. Connected to the device under test, connected to the first control device via a communication line, controlled by the first or second control device, and in accordance with the conditions set by the first control device. The test of the second device under test is performed by the first composite power system simulator by the first test.
A test device using a composite power system simulator that is performed in parallel with the test of the device under test. 4. A first hybrid power system simulator,
A first control device, a second composite power system simulator, a second control device, and a coupling device, wherein the first composite power system simulator is a first analog type device. A power system simulator, a first digital power system simulator, a first interface device that connects the first analog power system simulator and the first digital power system simulator, and The second composite power system simulator includes a second analog power system simulator, a second digital power system simulator, the second analog power system simulator, and the second digital power system simulator. A second interface device to be connected, the second composite power system simulator is connected to the device under test, The electric power system to be tested in combination with the device under test is divided in a predetermined dividing unit, and the divided one and the other electric power systems are shared by the first and second combined type electric power system simulators. One and the other power system are coupled by the coupling device in the division unit, the first hybrid power system simulator is controlled by the first control device, and according to the condition set by the first control device. The second composite power system simulator is controlled by the second control device, complies with conditions set by the second control device, and the second composite power system simulator is connected between the first and second composite power system simulators. This is a complex power system simulator that tests the device under test in real time while transmitting data through a coupling device. Test device using the data. 5. A first hybrid power system simulator,
A first control device, a second composite power system simulator, a second control device, and a coupling device, wherein the first composite power system simulator is a first analog type device. A power system simulator, a first digital power system simulator, a first interface device that connects the first analog power system simulator and the first digital power system simulator, and The second composite power system simulator includes a second analog power system simulator, a second digital power system simulator, the second analog power system simulator, and the second digital power system simulator. A second interface device to be connected, the second composite power system simulator is connected to the device under test, The electric power system to be tested in combination with the device under test is divided in a predetermined dividing unit, and the divided one and the other electric power systems are shared by the first and second combined type electric power system simulators. One and the other power system are coupled by the coupling device in the division unit, the first hybrid power system simulator is controlled by the first control device, and according to the condition set by the first control device. The second composite power system simulator is controlled by the second control device, complies with the conditions set by the first control device, and the first and second composite power system simulators are connected to each other. This is a complex power system simulator that tests the device under test in real time while transmitting data through a coupling device. Test device using the data. 6. The analog power system simulator, the digital power system simulator, and the device under test output a measurement signal to be measured at the time of a test, and a storage device for storing data based on the measurement signal is provided. The test apparatus using the hybrid electric power system simulator according to claim 1.