JP2000125597A - Excitation control device for synchronous machine and tester device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an economical device by simplifying a tester device. SOLUTION: An analog signal input processing means 21 outputs a signal as a phase command signal k2. An excitation transformer simulation processing means 2J inputs a generator voltage signal d1 calculated in a simulated model, and an obtained excitation transformer voltage signal n is output. An excitation circuit simulation processing means 2K inputs the excitation transformer voltage signal n or the like calculated in the simulated model, to output an excitation current signal g1 and an excitation voltage signal P. A generator simulation processing means 2L performs calculation by the excitation voltage signal P to output the generator voltage signal d1 or the like by the simulated model. An analog signal output processing means 2M outputs various signal outputs from the generator simulation processing means 2L or the like to an excitation control device 10A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an excitation control device for a synchronous machine and a test device therefor.

[0002]

2. Description of the Related Art In general, when newly manufacturing an excitation control device for a synchronous machine, it is impossible to perform a test at a factory in combination with a synchronous machine to be manufactured, which is an actual machine, for various reasons. A test is performed in combination with a test device that performs the test and a manufactured excitation control device. In addition, even after the excitation control device is installed in the power plant, it may be necessary to perform a test alone in advance. Furthermore, at the time of regular inspection or after modification, it may be necessary to test the excitation control device alone before the actual machine and the synchronous machine are combined, for example, due to process limitations.

FIG. 9 is a block diagram of a conventional excitation control device for a synchronous machine and a test device therefor in the above case.

In FIG. 1, an excitation control device 10 comprises an analog signal conversion processing means 1A, a voltage adjustment means 1B, a limit means 1C, and a phase control means 1D.

[0005] In the test apparatus 20, the thyristor rectifier 2
A, an excitation transformer 2B, a simulated generator 2C, a transmission line 2D, an infinite bus 2E, a voltage detector 2F, a current detector 2G, and an excitation current detector 2H.

First, an excitation control device 10 which is a device under test is
Then, generator voltage signal a, generator current signal b,
The excitation current signal c is input to the analog signal conversion processing means 1A, and is converted by the analog signal conversion processing means 1A into a generator voltage signal d, an active power signal e, a reactive power signal f, an excitation current signal g, and a generator frequency signal h. Is done. Among them, the generator voltage signal d is output to the voltage adjusting means 1B. The active power signal e, the reactive power signal f, the exciting current signal g, and the generator frequency signal h are input to the limit means 1C, and the limit output signal j to the voltage adjusting means 1B is calculated according to the value of each input signal. Is done.

In the voltage adjusting means 1B, the generator voltage signal d
Is compared with the voltage command value signal i, and a signal corresponding to the deviation and the value of the limit means signal j is input to the phase control means 1D as the phase command signal k. In the phase control means 1D,
A gate pulse signal 1 for controlling the thyristor rectifier 2A is output based on the phase command signal k.

On the other hand, the test device 20 connected to the excitation control device 10 has the following configuration.

The input side of the thyristor rectifier 2A is connected to the secondary side of the exciting transformer 2B, and the primary side of the exciting transformer 2B is connected to the output of the simulation generator 2C. The output side of the thyristor rectifier 2A is connected to the field of the simulated generator 2C. The output of the simulated generator 2C is connected to an infinite bus 2E via a transmission line 2D including a main transformer for boosting, and simulates an infinite bus system of one machine.

A voltage detector 2F and a current detector 2G are connected between the simulated generator 2C and the transmission line 2D. The voltage detector 2F outputs a generator voltage signal a, and the current detector 2G Outputs a generator current signal b to the excitation controller 10. An excitation current detector 2H is connected between the thyristor rectifier 2A and the excitation transformer 2B, and outputs a detected excitation current signal c to the excitation control device 10.

In the test apparatus 20 configured as described above, the thyristor rectifier 2A is supplied with an AC voltage from the excitation transformer 2B, and the output voltage of the thyristor rectifier 2A is changed by the gate pulse signal 1 to generate the simulated power. Machine 2
The output voltage of C (generator voltage signal) is controlled. By inputting the control results as the generator voltage signal a, the generator current signal b, and the excitation current signal c to the excitation control device 10, a closed circuit simulating the operation state of the actual machine is configured.

[0012]

However, conventionally, since the test apparatus 20 is constituted by hardware simulating an actual machine, it is necessary to manufacture and maintain the test apparatus and to connect it to a control apparatus. The time and cost were great.

SUMMARY OF THE INVENTION Accordingly, the present invention provides an economical synchronous machine excitation control device and a test device thereof which simplify the manufacture and maintenance of the test device, reduce the connection with the control device, and reduce the preparation time for the test. The purpose is to provide.

[0014]

According to a first aspect of the present invention, there is provided a test apparatus for an excitation control device for a synchronous machine for simulating and testing an excitation control device for exciting and controlling a synchronous machine. An input means for inputting a test control signal generated and output from the output means; and a simulation operation using an excitation circuit model based on the test control signal input from the input means to output a simulation operation signal. Exciting circuit simulation processing means, synchronous machine simulation processing means for simulating a synchronous machine model and outputting a simulation operation signal, and excitation transformer simulation processing for simulating and outputting a simulation operation signal using an excitation transformer model Means, and output means for outputting each simulation operation signal output by these simulation processing means to an input means provided in the excitation control device as each test signal, and appropriately to the excitation control device. With the connection possible, by executing the processing program provided in the test apparatus in place of the control signal to the actual machine, in which to perform the test excitation control apparatus using a control signal for the test. According to this means, the test control signal is input from the excitation control device connected to the excitation control device during the test. Then, by executing the processing program of the test device, the actual device is simulated using the control signal for the test, the calculation is performed, and the obtained test result signal is output to the excitation control device. As a result, simplification and downsizing of the test apparatus can be achieved as compared with a conventional test apparatus having a hardware configuration. In addition, tests can be performed in accordance with various processing programs in accordance with the specifications of various control devices to be manufactured, and the testing device can be easily modified by changing the programs. In addition, various excitation control devices can be tested by easily transporting them between factories and power plants. Therefore, a highly versatile and economical device can be realized.

According to a second aspect of the present invention, in the test apparatus of the excitation control device for a synchronous machine according to the first aspect, the test result signal obtained by the test device is transmitted to transmission processing means provided in the excitation control device, and the excitation is performed. A transmission processing means for receiving a test control signal transmitted from the transmission processing means provided in the control device is provided. According to this means, in addition to the operation of the invention of claim 1, signals are exchanged between the test apparatus and the excitation control apparatus by the transmission processing means, so that the connection between the two apparatuses is simple and preparation for the test is performed. The time can be greatly reduced.

According to a third aspect of the present invention, there is provided an excitation control device for a synchronous machine provided with a test device for simulating and testing an excitation control device for exciting and controlling the synchronous machine, wherein the test device is housed in the excitation control device, Excitation circuit simulation processing means for performing a simulation operation using an excitation circuit model based on a test control signal input from the control device and outputting a simulation operation signal, and performing a simulation operation for a synchronous machine model and outputting a simulation operation signal Synchronous machine simulation processing means, excitation transformer simulation processing means for performing a simulation operation using an excitation transformer model and outputting a simulation operation signal, and each simulation operation signal obtained by each of these means is excited as a test result signal. Means for outputting to a control device, the excitation control device comprises a first input means for inputting and processing various electric quantity signals from a synchronous machine, and a second input means for inputting a test result signal from a test apparatus. Input means, means for selectively switching between a test result signal input by the second input means and various electric quantity signals input by the first input means, based on the signal switched by this means. Means for generating a test control signal or a control signal to the actual machine by executing a processing program provided in the test apparatus in place of the control signal to the actual machine. Is performed.
According to this means, a test control signal is input from the excitation control device. Then, by executing the processing program of the test device, the actual device is simulated using the control signal for the test, the calculation is performed, and the obtained test result signal is output to the excitation control device. As a result, simplification and downsizing of the test apparatus can be achieved as compared with a conventional test apparatus having a hardware configuration. In addition, since the test device is housed in the excitation control device, the test can be performed immediately without any preparation during the test.

According to a fourth aspect of the present invention, there is provided a test apparatus for an excitation control device of a synchronous machine for simulating and testing each excitation control device having a multiplexed configuration for exciting and controlling the synchronous machine. Each of the input means provided corresponding to the excitation control device for inputting a test control signal generated and output from each output means, and an excitation circuit model based on the test control signal input from these input means. Excitation circuit simulation processing means for performing a simulation operation and outputting a simulation operation signal, a synchronous machine simulation hand processing stage for performing a simulation operation using a synchronous machine model and outputting a simulation operation signal, and performing a simulation operation for the excitation transformer model Exciting transformer simulation processing means for outputting a simulation operation signal, and each simulation operation signal output by these simulation processing means is output as a test signal to each input means provided in each excitation control device. Each output means and means for inputting a test control signal from an excitation control device to be tested and switching between each input means and each output means so as to output a test result signal. In addition, the excitation control device can be tested by a test control signal by executing a processing program provided in the test device instead of a control signal to the actual machine. According to this means, a test control signal is input from the excitation control device to be tested which is connected to each excitation control device and selected from among the excitation control devices during the test. Then, by executing the processing program of the test apparatus, an operation is performed by simulating the actual apparatus using the test control signal, and the obtained test result signal is output to the excitation control apparatus to be tested. As a result, simplification and downsizing of the test apparatus can be achieved as compared with a conventional test apparatus having a hardware configuration. Further, tests can be performed in accordance with various processing programs so as to conform to the specifications of various control devices to be manufactured, and the test device can be easily modified. In addition, various excitation control devices can be tested by easily transporting them between factories and power plants. Therefore, a highly versatile and economical device can be realized.

According to a fifth aspect of the present invention, in the excitation control device for a synchronous machine according to the fourth aspect and a test device therefor, a test result signal obtained by the test device is transmitted to transmission processing means provided in each excitation control device. And transmission processing means for receiving a test control signal transmitted from the transmission processing means of each excitation control device. According to this means,
In addition to the operation of the invention of claim 4, since the transmission processing means exchanges signals between the test apparatus and each excitation control apparatus, the connection between the two apparatuses is simple and the preparation time for the test is greatly reduced. Can be achieved.

According to a sixth aspect of the present invention, there is provided an excitation control apparatus for a synchronous machine having a test apparatus for simulating and testing each excitation control apparatus having a multiplex configuration for exciting and controlling the synchronous machine. Each test apparatus is simulated by using a means for inputting a test control signal from each excitation control device and an excitation circuit model based on the test control signal input from this means. Exciting circuit simulation processing means for calculating and outputting a simulation operation signal, synchronous machine simulation processing means for performing a simulation operation on a synchronous machine model and outputting a simulation operation signal, and performing a simulation operation on the excitation transformer model to obtain a simulation operation signal. The excitation transformer simulating means for outputting, and the means for outputting each simulation operation signal obtained by these means as a test result signal to each excitation control device, while each excitation control device Output means for outputting a test control signal to the input device, input means for inputting a test result signal from the test apparatus, and signals input / output by these means are exchanged between one excitation control apparatus and the other excitation control apparatus. Transmission processing means for setting the test device of one excitation control device and the test device of the other excitation control device to the same state, and executing the processing program simulating the actual machine to test each excitation control device. It is something to do. According to this means, a control signal for testing one of the excitation control devices selected from the excitation control devices is input.
Then, by executing the processing program of the test device, the actual device is simulated using the control signal for the test, the calculation is performed, and the obtained test result signal is output to the excitation control device. Then, the test result signal is output to another excitation control device. As a result, simplification and downsizing of the test apparatus can be achieved as compared with a conventional test apparatus having a hardware configuration. Further, since the test device is housed in the excitation control device, the test can be performed immediately with almost no preparation at the time of the test. Further, a plurality of test apparatuses can be operated at the same time, and the test can be performed with all the test apparatuses in the same state by correcting the state of the other test apparatus with the result of one test.

The invention according to claim 7 is based on claims 1, 2,
The test apparatus of the excitation control device for a synchronous machine according to any one of claims 4 and 5, wherein the test apparatus outputs means for storing a test result signal and externally outputs data stored by this means as needed. Means. According to this means, since the test result signal is stored by the storage means and output to the outside, the test result of the excitation control device can be easily analyzed.

According to an eighth aspect of the present invention, in the excitation control device for a synchronous machine according to the third or sixth aspect, the excitation control device comprises:
An input processing means for externally inputting a test signal including a step response is provided to test the excitation control device. According to this means, a control signal including a step signal can be intentionally generated in response to an external request, and various necessary tests can be performed.

[0022]

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

FIG. 1 is a block diagram of a synchronous machine excitation control device and a test device thereof according to a first embodiment of the present invention.
The same reference numerals as those in FIG. 9 showing the prior art indicate the same or corresponding parts.

In FIG. 1, an excitation control device 10A includes an analog signal input processing means 1E in addition to the conventional analog signal conversion processing means 1A, voltage adjustment means 1B, limit means 1C and phase control means 1D shown in FIG. And switching means 1F
And an analog signal output processing means 1G.

On the other hand, the test apparatus 20A is completely different from the conventional configuration shown in FIG. 9 and is constituted by software, and comprises analog signal input processing means 2I, excitation transformer simulation processing means 2J, excitation circuit simulation processing means 2K, and generator simulation. A processing unit 2L and an analog signal output processing unit 2M are provided, and can be appropriately connected to the excitation control device 10A.

Here, the analog signal input processing means 21
Receives the phase command signal k1 and outputs it as a phase command signal k2 to the excitation circuit simulation processing means 2K. The excitation transformer simulating means 2J receives the generator voltage signal d1 from the generator simulating means 2L, performs an operation using a simulation model, and converts the obtained excitation transformer voltage signal n into the excitation circuit simulation processing means 2K.
Output to The excitation circuit simulation processing means 2K inputs the excitation transformer voltage signal n and the excitation circuit simulation processing means 2K, performs a calculation using a simulation model, and outputs the obtained excitation current signal g1 and excitation voltage signal P. The generator simulation processing means 2L includes:
The simulation model is used to calculate the excitation voltage signal P to output a generator voltage signal d1, an active power signal e1, a reactive power signal f1, and a generator frequency signal h1. The analog signal output processing means 2M outputs various signals output from the generator simulation processing means 2L and the excitation circuit simulation processing means 2K to the excitation control device 10A.

With the above configuration, the generator voltage signal d1 output from the generator simulation processing means 2L of the test apparatus 20A is input to the excitation transformer simulation processing means 2J, and the excitation transformer It is converted into a voltage signal n and output to the excitation circuit simulation processing means 2K. Also, the phase command signal k1 output from the excitation control device 10A is
Phase command signal k via analog signal input processing means 2I
2 is input to the excitation circuit simulation processing means 2K.

The excitation circuit simulation processing means 2K calculates an excitation current signal g1 and an excitation voltage signal p by a simulation model according to the excitation transformer voltage signal n and the phase command signal k2.
The obtained excitation current signal g1 is output to the analog signal output processing means 2M, and the excitation voltage signal p is output to the generator simulation processing means 2L.

The generator simulation processing means 2L uses a simulation model to generate a generator voltage signal d1,
The active power signal e1, the reactive power signal f1, and the generator frequency signal h1 are calculated, and the obtained generator voltage signal d1 is converted to the excitation transformer simulation processing means 2J and the analog signal output processing means 2
M, and other signals e1, f1, and h1 are output to the analog signal output processing means 2M.

Next, the generator voltage signal d1 input to the analog signal output processing means 2M is output to the excitation controller 10A as a generator voltage signal d2. The excitation control device 10A, which is the device under test, inputs the generator voltage signal d2 as the generator voltage signal d3 via the analog signal input processing means 1E, and outputs the generator voltage signal d3 output from the analog signal conversion processing means 1A. With generator voltage switching means 1F
1 is input.

The generator voltage switching means 1F1 selects a generator voltage signal d3 and a generator voltage signal d in accordance with the input signal switching signal m and outputs the selected signal as a generator voltage signal d4 to the voltage adjusting means 1B.

Similarly, each signal is limited via analog signal output processing means 2M, analog signal input processing means 1E, active power switching means 1F2, reactive power switching means 1F3, excitation current switching means 1F4, and generator frequency signal 1F5. Output to means 1C.

The limit means 1C calculates a limit means signal j to the voltage adjusting means 1B according to the value of each input signal. The voltage adjusting means 1B compares the generator voltage signal d4 with the voltage command value signal i, and compares the difference with the limit means signal j.
Is output as a phase command signal k to the analog signal input processing means 2I of the test apparatus 20A via the analog signal output processing means 1G as a phase command signal k1.

As described above, in the first embodiment, the production and maintenance of the test apparatus can be simplified by converting the simulation circuit of the one-machine infinite bus system including the excitation circuit into software, and The connection with the excitation control device is minimized, and the time and labor for the test can be reduced.

FIG. 2 is a block diagram of an excitation control device and a test device according to a second embodiment of the present invention. The same reference numerals as those in FIG. 1 showing the first embodiment denote the same or corresponding parts. Is shown.

In FIG. 2, the excitation control unit 10B comprises an analog signal conversion processing unit 1A and a voltage adjustment unit 1B shown in FIG.
, Limit means 1C, phase control means 1D, and switching means 1F
And a transmission processing means 1H.

On the other hand, the test apparatus 20A includes a transmission processing means 2N in addition to the excitation transformer simulation processing means 2J, the excitation circuit simulation processing means 2K, and the generator simulation processing means 2L.

First, in the excitation controller 10B, the transmission processing means 1H sends the generator voltage signal d via the transmission cable q.
3, an active power signal e3, a reactive power signal f3, an exciting current signal g3, and a generator frequency signal h3. Also,
The phase command signal k is input to the transmission processing means 1H, and further output to the test device 20B via the transmission cable q.

In the test apparatus 20B, the phase command signal k2 is output from the transmission processing means 2N to the excitation circuit simulation processing means 2K. The generator voltage signal d1, the active power signal e1, the reactive power signal f1, the generator frequency signal h1, and the exciting current, which are the output signals of the excitation circuit simulation processing means 2L, are output signals obtained by the generator simulation processing means 2L. The signal g1 is input to the transmission processing unit 2N, and output to the excitation control device 10B via the transmission cable q.

As described above, according to the second embodiment, since the excitation control device and the test device use the transmission processing means, the connection between the excitation control device and the test device is made only by the transmission cable. The connection with the control device can be minimized, and the time and cost for the test can be saved.

FIG. 3 is a block diagram of an excitation control device having a test apparatus according to a third embodiment of the present invention. The same reference numerals as those in FIG. 1 showing the first embodiment denote the same or corresponding parts. Is shown.

In the figure, an excitation control device 10C has a built-in test device 20C, and the excitation control device 10C includes an analog signal conversion processing means 1A, a voltage adjustment means 1B, a limit means 1C, a phase control means 1D, and a switching means 1F. On the other hand, the built-in test apparatus 20C includes the excitation transformer simulation processing means 2J, the excitation circuit simulation processing means 2K, and the generator simulation processing means 2L.

First, the test apparatus 20C includes the excitation control apparatus 1
The generator voltage signal d1, the active power signal e1, the reactive power signal f1, the generator frequency signal h1, and the exciting current which is an output signal of the exciting circuit simulation processing means, which are built in the OC and are output signals of the generator simulation processing means 2L. Each signal of the signal g1 is input to the switching means 1F. Further, the phase command signal k, which is the output signal of the voltage adjusting means 1B, is supplied to the excitation circuit
Is input to

As described above, according to the third embodiment, since the test apparatus is software-structured and built into the excitation control apparatus, the connection equipment and the connection cable to the control apparatus become unnecessary, and the time and cost for the test are reduced. Can save money.

FIG. 4 is a block diagram of an excitation control apparatus having a test apparatus according to a fourth embodiment of the present invention. The same reference numerals as those in FIG. 1 showing the first embodiment denote the same or corresponding parts. Is shown.

In the figure, two excitation control devices 10D1 and 10D2 of a multiplex configuration and one test device 2
0D, the excitation control device 10D1 has digital signal output processing means 3I, and the excitation control device 10D
2 has digital signal output processing means 4I.

On the other hand, the test apparatus 20D comprises analog signal input processing means 2I1, analog signal input processing means 2I2, excitation transformer simulation processing means 2J, and excitation circuit simulation processing means 2J.
K, generator simulation processing means 2L, analog signal output processing means 2M1, analog signal output processing means 2M2, digital signal input processing means 2P1, digital signal input processing means 2P2, used device determination means 2Q, and phase command switching means 2
R.

Note that d5 and d6 are generator voltage signals, e
5, e6 are active power signals, f5 and f6 are reactive power signals,
g5 and g6 indicate exciting current signals, h5 and h6 indicate generator frequency signals, k4, k5 and k6 indicate phase command signals, and r1 to r6 indicate device use signals.

Here, the configuration and operation of the excitation controller 10D1 and the excitation controller 10D2 are the same as those of the excitation controller 10A shown in FIG.

In FIGS. 1 and 4, the generator voltage signal d2 corresponds to the generator voltage signal d5 and the generator voltage signal d6, and the active power signal e2 corresponds to the active power signal e5 and the active power. The signal e6 and the reactive power signal f2 correspond to the reactive power signal f5 and the reactive power signal f6, and the excitation current signal g2 corresponds to the excitation current signal g5 and the excitation current signal g6 and the generator frequency signal h2. Are the generator frequency signal h5, the generator frequency signal h6, and the phase command signal k.
1 corresponds to the phase command signal k3 and the phase command signal k5.
It is.

In the test device 20D, the excitation control device 10D
1 is the analog signal input processing means 2I
1 as a phase command signal k4. Further, a phase command signal k5 of the excitation control device 10D2 is input as a phase command signal k6 via the analog signal input processing means 2I2.

The excitation control device 10D1 outputs a device use signal r1 output when the device is used as a device use signal r2 via the digital signal output processing means 3I. Means 2P
1 is input to the test apparatus 20D as the apparatus use signal r3.

On the other hand, the excitation control device 10D2 outputs the device use signal r4 as the device use signal r5 via the digital signal output processing means 4I when the device is used. This signal is input to the test apparatus 20D via the digital signal input processing means 2P2 as the apparatus use signal r6.

The device use signal r3 and the device use signal r6 are input to the used device discriminating means 2Q, and the excitation control device 10D1
And the excitation control device 10D2 are actually used, and are input to the phase command signal switching device 2R as the use device selection signal r7.

The phase command signal switching device 2R receives the phase command signal k4, the phase command signal k6, and the used device selection signal r7, and according to the value of the used device selection signal r7, the phase command signal k4 and the phase command signal k6. Then, the phase command signal of the excitation control device actually used is selected and output to the excitation circuit simulation processing means 2K as the phase command signal k2.

The generator voltage signal d1, the active power signal e1, the reactive power signal f1, the generator frequency signal h1, which are the output signals of the generator simulation processing means 2L, and the output signal of the excitation circuit simulation processing means. The excitation control device 10 converts the excitation current signal g1 into a generator voltage signal d5, an active power signal e5, a reactive power signal f5, an excitation current signal g5, and an electric machine frequency h5 via the analog signal output processing means 2M1.
D1 and output to the excitation controller 10D2 via the analog signal output processing means 2M2 as the generator voltage signal d6, active power signal e6, reactive power signal f6, excitation current signal g6, and generator frequency signal h6.

As described above, according to the fourth embodiment, the signal input processing means and the signal output processing means are provided according to the number of excitation control devices, and the phase command signal input from the excitation control device is switched. By providing the device discriminating means and the phase command switching means, a test can be performed by connecting a multiplexed excitation control device to one test device.

FIG. 5 is a configuration diagram of an excitation control device and a test device according to a fifth embodiment of the present invention. The same reference numerals as those in FIG. 4 showing the fourth embodiment denote the same or corresponding parts. Is shown.

In the fifth embodiment, two excitation control devices 1
0E1, the excitation control device 10E2, and one test device 20E
It is composed of The excitation control device 10E1 has a transmission processing unit 3H, and the excitation control device 10E2 has a transmission processing unit 4H.

On the other hand, in addition to the excitation transformer simulation processing means 2J, the excitation circuit simulation processing means 2K, and the generator simulation processing means 2L, the test apparatus 20E includes a transmission processing means 2N1, a transmission processing means 2N2, and a used apparatus discrimination means 2Q. And a phase command switching means 2R.

The excitation control device 10E1 to the test device 20E
Is output via the transmission processing unit 3H, the transmission cable q1, and the transmission processing unit 2N1, and the signal from the test apparatus 20E to the excitation control unit 10E1 is output from the transmission processing unit 2N.
1, output via transmission cable q1 and transmission processing means 3H.

Similarly, a signal from the excitation control device 10E2 to the test device 20E is output via the transmission processing means 4H, the transmission cable q2, and the transmission processing means 2N2, and is transmitted from the test device 20E to the excitation control device 10E2. The signal is transmitted by the transmission processing unit 2N2, the transmission cable q2, the transmission processing unit 4
Output via H.

As described above, according to the fifth embodiment, even when a plurality of excitation control devices are connected, the transmission processing means is used, and the connection to each excitation control device is made only by the transmission cable. The connection with the device can be minimized, and the time and cost for the test can be saved.

FIG. 6 is a block diagram of an excitation control device and a test device according to a sixth embodiment of the present invention, which are the same as FIGS. 4 and 5 showing the fourth and fifth embodiments. Reference numerals indicate the same or corresponding parts.

Excitation control device 10F1 of the sixth embodiment
Has a built-in test apparatus 20F1 and an excitation control apparatus 10F1
Has transmission processing means 3H. The excitation control device 10F2 has a built-in test device 20F2, and the excitation control device 10F2 has transmission processing means 4H.

The test apparatus 20F1 has exciting transformer simulation processing means 5J, excitation circuit simulation processing means 5K, and generator simulation processing means 5L. The test apparatus 20F2 has exciting transformer simulation processing means 6J, excitation circuit simulation processing means 6K, and generator simulation processing means 5L.

The transmission processing means 3H of the excitation control device 10F1 and the transmission processing means 4H of the excitation control device 10F2 are connected by a transmission cable q3.

Note that d7 and d8 are generator voltage signals, and e
7, e8 are active power signals, f7, f8 are reactive power signals,
g7 and g8 are exciting current signals, h7 and h8 are generator frequency signals, k7 and k8 are phase command signals, n1 and n2 are exciting transformer voltages, p1 and p2 are exciting voltage signals, q3 is a transmission cable, and s1 and s2. Is a test device state quantity, and t1 and t2 are test device state quantities.

First, the test equipment state quantity s1 calculated by the generator simulation processing means 5L is output to the test equipment 20F2 as the test equipment state quantity s2 via the transmission processing means 3H, the transmission cable q3, and the transmission processing means 4H. You. on the other hand,
The test equipment state quantity t1T calculated by the generator simulation processing means 6L is output to the test equipment 20F1 as the test equipment state quantity t2 via the transmission processing means 4H, the transmission cable q3, and the transmission processing means 3H.

Next, in the generator simulation processing means 5L, the excitation control device use signal r1 is inputted, and the excitation control device 10F
If 1 is used, the test apparatus state quantity s1 is used. If the excitation control device 10F2 is used, the test device state quantity t2 is used.

The generator simulation processing means 6L receives the excitation control device use signal r4, uses the test device state quantity t1 if the excitation control device 10F2 is used, and uses the test device state quantity t1 if the excitation control device 10F1 is used. Test equipment state quantity s2
Is used.

Thus, the operation of the test apparatus 20F1 and the operation of the test apparatus 20F2 are made the same by using the state quantity of the test apparatus incorporated in the excitation control apparatus used.

As described above, according to the sixth embodiment, a plurality of test devices are used. However, by using the state quantities of the test devices built in the excitation control device used, all the test devices can be used. The test equipment can be used in the same condition.

FIG. 7 is a block diagram of a test apparatus according to the seventh embodiment of the present invention. The same reference numerals as those in FIG. 1 showing the first embodiment denote the same or corresponding parts.

The test apparatus 20G shown includes analog signal input processing means 2I, excitation transformer simulation processing means 2J, excitation circuit simulation processing means 2K, generator simulation processing means 2L, analog signal output processing means 2M, and digital signal input processing means. Means 2S, storage means 2T, and signal output processing means 2U, and a test apparatus 20 according to the first embodiment shown in FIG.
The digital signal input processing means 2S, the storage means 2T, and the signal output processing means 2U are added to A.

Here, d9 and d10 are generator voltage signals, e
9 and e10 are active power signals, f9 and f10 are reactive power signals, g9 and g10 are exciting current signals, h9 and h10 are generator frequency signals, n3 and n4 are exciting transformer voltage signals, p
3, p4 are excitation voltage signals, u and u1 are storage signals, v and v
Reference numeral 1 denotes a reproduced signal.

First, the generator voltage signal d1, the active power signal e1, and the reactive power signal f1, calculated by the test apparatus 20G,
The storage means 2 stores state quantities such as an excitation current signal g1, a generator frequency signal h1, an excitation transformer voltage signal n, and an excitation voltage signal p.
Input to T.

The storage signal u and the reproduction signal v are input to the storage means 2T as the storage signal u1 and the reproduction signal v1 via the digital signal input processing means 2S.

In the storage means 2T, while the storage signal u1 is on, the input state quantity is stored for a specified number of times at regular time intervals, and data of (a fixed time) × (specified number of times) is stored. The oldest data is updated to the latest data for the number exceeding the specified number.

When the storage signal u1 is turned off, the storage update is stopped, and the data stored so far is retained. next,
When the reproduction signal v1 is turned on, the data stored in the storage unit 2T is sequentially changed from the oldest one to the signal output processing unit 2U.
Output to

Each data output from the storage means 2T is
The generator voltage signal d9, the active power signal e9, the reactive power signal f9, the exciting current signal g9, the generator frequency signal h9, the exciting transformer voltage signal n3, and the exciting voltage signal p3 are input to the signal output processing means 2U. Signal output processing means 2U
Voltage signal d10, active power signal e10, reactive power signal f10, excitation current signal g10,
Each of the generator frequency signal h10, the excitation transformer voltage signal n4, and the excitation voltage signal p4 is output from the test apparatus 20G to the outside.

As described above, according to the seventh embodiment, the state quantity calculated in the test apparatus is output to the outside, and the correlation between this state quantity and the data of the excitation controller is examined.
State analysis of the entire system can be facilitated.

FIG. 8 is a block diagram of a test apparatus according to an eighth embodiment of the present invention. The same reference numerals as those in FIG. 1 showing the first embodiment denote the same or corresponding parts.

The illustrated excitation control device 10H comprises an analog signal conversion processing means 1A, a voltage adjustment means 1B, a limit means 1C, a phase control means 1D, an analog signal input processing means 1E, a switching means 1F, an analog signal output processing means 1G, 1 is provided with an addition means 1J and a display means 7 with an input function.
The addition means 1J and the display means 7 with an input function are added to the excitation control device 10A shown in FIG.

First, the display means with input function 7 is operated.
The step amount w is changed from the display unit with input function 7 to the addition unit
Is output to The adder 1J adds the step amount w input from the display with input function 7 and the voltage set value x, and outputs the result as a voltage command value signal i to the voltage adjuster 1B.

Thus, when the display means with input function 7 is operated to change the step amount w, the voltage adjusting means 1
The voltage command value signal i input to B is changed stepwise, and a step response test is performed.

As described above, according to the eighth embodiment, by using the display device with the input function of the excitation control device also for the test, the test can be performed without connecting the input device dedicated for the test. It can be carried out.

[0088]

As described above, according to the first aspect of the present invention, by executing a processing program, a simulation is performed using a test control signal to simulate a real machine, and the obtained test result signal is excited. Since the data is output to the control device, the device can be simplified and downsized as compared with a conventional hardware configuration test device. In addition, tests can be performed in accordance with various processing programs for various control devices to be manufactured, and the test device can be easily modified. In addition, various excitation control devices can be tested by easily transporting them between factories and power plants. Therefore, a highly versatile and economical device can be realized.

According to the invention of claim 2, according to claim 1,
In addition to the effect of the invention, the transmission processing means exchanges signals between the test device and the excitation control device, so that the connection between the two devices is simple and the preparation time for the test can be greatly reduced. it can.

According to the third aspect of the present invention, an actual machine is simulated by using a test control signal by executing a processing program, and an operation is performed, and the obtained test result signal is output to the excitation control device. Therefore, simplification and miniaturization can be achieved as compared with a conventional hardware configuration test apparatus. In addition, since the test device is housed in the excitation control device, the test can be performed immediately without any preparation during the test.

According to the fourth aspect of the present invention, an operation is performed by simulating a real machine by using a test control signal by executing a processing program of a test apparatus, and an obtained test result signal is used as a test target signal. Since the signal is output to the excitation control device, the device can be simplified and downsized as compared with a conventional test device having a hardware configuration, and a highly versatile and economical device can be realized.

According to the invention of claim 5, according to claim 4,
In addition to the effects of the invention, since the transmission processing means exchanges signals between the test apparatus and each excitation control apparatus, the connection between the two apparatuses is simple and the preparation time for the test can be greatly reduced.

Further, according to the invention of claim 6, by executing the processing program, the operation is simulated using the test control signal to simulate the actual machine, and the obtained test result signal is output to the excitation control device. As a result, the apparatus can be simplified and miniaturized as compared with the conventional hardware configuration test apparatus, and the test apparatus is housed in the excitation control device. A plurality of test apparatuses can be operated, and the test result of one test apparatus can be used to correct the state of the other test apparatus so that all the test apparatuses can be tested in the same state.

Further, according to the invention of claim 7, since the test result signal is stored by the storage means and output to the outside, the test result of the excitation control device can be easily analyzed.

According to the eighth aspect of the present invention, a control signal including a step signal can be intentionally generated in response to an external request, and various necessary tests can be performed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an excitation control device and a test device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of an excitation control device and a test device according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of an excitation control device showing a third embodiment of the present invention.

FIG. 4 is a configuration diagram of an excitation control device and a test device according to a fourth embodiment of the present invention.

FIG. 5 is a configuration diagram of an excitation control device and a test device according to a fifth embodiment of the present invention.

FIG. 6 is a configuration diagram of an excitation control device showing a sixth embodiment of the present invention.

FIG. 7 is a configuration diagram of a test apparatus showing a seventh embodiment of the present invention.

FIG. 8 is a configuration diagram of an excitation control device showing an eighth embodiment of the present invention.

FIG. 9 is a configuration diagram showing a conventional excitation control device and a test device.

[Description of Signs] 1, 10A to 10H Excitation control device 1A Analog signal conversion processing means 1B Voltage adjustment means 1C Limit means 1D Phase control means 1E, 2I, 2I1, 2I2 Analog signal input processing means 1F Switching means 1F1 Generator voltage switching Means 1F2 Active power switching means 1F3 Reactive power switching means 1F4 Excitation current switching means 1F5 Generator frequency signal 1G, 2M, 2M1, 2M2 Analog signal output processing means 1H, 3H, 4H, 2N, 2N1, N2 Transmission processing means 1J Addition means 2A Thyristor rectifier 2B Excitation transformer 2C Simulated generator 2D Transmission line 2E Infinite bus 2F Voltage detector 2G Current detector 2H Excitation current detector 2J, 5J, 6J Excitation transformer simulation processing means 2K, 5K, 6K Excitation circuit simulation Processing means 2L, 5L, 6L Generator simulation processing means 2P, 2P1, 2P2 Digital signal input processing means 2Q Used device determination means 2R Phase command switching means 2U Signal output processing means 3I, 4I Digital signal output processing means 7 Display means with input function 20, 20A, 20B, 20C, 20F Test equipment

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiko Shibata 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu Plant, Inc. Terms (Reference) 5H004 GA27 GA34 GB06 HA20 JA03 JA07 JB01 KA72 LA15 MA04 MA36 5H223 AA19 BB08 BB10 CC01 EE06 EE30 FF01 5H590 AA09 CC01 CE01 DD24 DD64 DD75 EA07 EB02 EB21 FA06 FC15 FC27 GA02 GA10 GB05 HA02 HA04 HA06

Claims (8)

[Claims] 1. A test apparatus for an excitation control device of a synchronous machine for simulating and testing an excitation control device for exciting and controlling a synchronous machine, comprising: a test device generated by a generation unit provided in the excitation control device and output from an output unit. Input means for inputting a control signal of the above, excitation circuit simulation processing means for performing a simulation operation using an excitation circuit model based on the test control signal input from the input means and outputting a simulation operation signal, and a synchronous machine model Synchronous machine simulation processing means for performing a simulation operation and outputting a simulation operation signal, excitation transformer simulation processing means for performing a simulation operation using an excitation transformer model and outputting a simulation operation signal, and output by these simulation processing means Output means for outputting each of the simulated operation signals to the input means provided in the excitation control device as each test signal, so that the simulation control signal can be appropriately connected to the excitation control device. By execution of the processing program provided in the test apparatus in place of the control signal to the actual machine, the test device of the excitation control apparatus of a synchronous machine, characterized in that testing the excitation control apparatus using a control signal for the test. 2. A test result signal obtained by the test device is transmitted to transmission processing means provided in the excitation control device, and a test control signal transmitted from transmission processing means provided in the excitation control device is received. 2. The test apparatus for an excitation control device for a synchronous machine according to claim 1, further comprising a transmission processing unit that performs the transmission processing. 3. An excitation control device for a synchronous machine provided with a test device for simulating and testing an excitation control device for exciting and controlling a synchronous machine, wherein the test device is housed in the excitation control device, and the excitation control device Excitation circuit simulation processing means for performing a simulation operation using an excitation circuit model based on a test control signal input from and outputting a simulation operation signal, and a synchronous machine for performing a simulation operation on the synchronous machine model and outputting a simulation operation signal Mock processing means,
Excitation transformer simulation processing means for performing a simulation operation using an excitation transformer model and outputting a simulation operation signal, and means for outputting each simulation operation signal obtained by each of these means to the excitation control device as a test result signal While, the excitation control device, the first input means for inputting and processing various electric quantity signals from the synchronous machine, the second input means for inputting the test result signal from the test device, The test result signal input by the second input means and the first
Means for selectively switching between various electric quantity signals input by the input means, and means for generating a control signal for the test based on the signal switched by this means, or a control signal to the actual machine. An excitation control device for a synchronous machine, characterized in that the excitation control device is tested by the test control signal by executing a processing program provided in a test device instead of a control signal to an actual machine. 4. A test apparatus of an excitation control device of a synchronous machine for simulating and testing each excitation control device of a multiplex configuration for exciting control of a synchronous machine, wherein each output generated by generation means provided in each of the excitation control devices is generated. A simulation operation using an excitation circuit model based on the input control means for inputting a test control signal output from the input means and the test control signal input from the input means; Excitation circuit simulation processing means for outputting a simulation operation signal, a synchronous machine simulation hand processing stage for performing a simulation operation using a synchronous machine model and outputting a simulation operation signal, and a simulation operation signal for performing simulation operation for an excitation transformer model. And each of the simulation output means for outputting to the input means provided in each of the excitation control devices each test signal as a test signal. Force means, and a means for inputting the test control signal from an excitation control device to be tested and means for switching between the input means and the output means so as to output the test result signal. Synchronization characterized in that each excitation control device can be connected to each excitation control device, and a test of each excitation control device is performed by the test control signal by executing a processing program provided in the test device instead of a control signal to the actual machine. Test equipment for machine excitation control. 5. A test control signal transmitted from the transmission processing means of each of the excitation control devices, while transmitting a test result signal obtained by the test device to transmission processing means provided in each of the excitation control devices. 5. A test apparatus for an excitation control device for a synchronous machine according to claim 4, further comprising a transmission processing means for receiving the signal. 6. An excitation control device for a synchronous machine provided with a test device for simulating and testing each excitation control device of a multiplex configuration for exciting control of a synchronous machine, wherein the test device corresponds to each of the excitation control devices. Each of the test devices performs a simulation operation using an excitation circuit model based on a test control signal input from each of the excitation control devices and a test control signal input from the test device. Excitation circuit simulation processing means for outputting a simulation operation signal, synchronous machine simulation processing means for performing a simulation operation of a synchronous machine model and outputting a simulation operation signal, and simulation operation signal for outputting an excitation transformer model and outputting a simulation operation signal Excitation transformer simulation processing means, and means for outputting each simulation operation signal obtained by these means as a test result signal to each of the excitation control devices, while each of the excitation control devices is Output means for outputting the test control signal to each test apparatus, input means for inputting the test result signal from the test apparatus, and one of the excitation control apparatus and the other Transmission processing means for exchanging with the excitation control device, the test device of one excitation control device and the test device of the other excitation control device being in the same state, and executing the processing program simulating the actual machine, An excitation control device for a synchronous machine, wherein each excitation control device is tested. 7. The test apparatus according to claim 1, wherein the test apparatus has means for storing the test result signal, and means for outputting data stored by the test means to the outside as necessary. A test apparatus for an excitation control device for a synchronous machine according to any one of claims 4 and 5. 8. The excitation control device according to claim 3, wherein the excitation control device has an input processing unit for externally inputting a test signal including a step response, and tests the excitation control device. Excitation control device for synchronous machine.