JP2013228314A - Digital control panel test device and test method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute verification of an input signal and an output signal at the time of a static characteristics test of a digital control panel and allow control characteristics such as transient characteristics to be verified in detail.SOLUTION: A digital control panel test device tests a digital control panel 1 that comprises a signal input section 11, a digital control command operation section 13 and a signal output section 15 and functions as a generator excitation control device and a steam turbine control device by an automatic test device 2. In the digital control panel 1, there are provided an operation data write section 16 for directly writing test data in the digital control command operation section 13 inside the digital control panel 1 and an operation data readout section 17 for directly reading out a calculation value 13s in a control board calculated by the digital control command operation section 13. Further, in the automatic test device 2, there are provided an operation data output processing section 24 for outputting the test data to the operation data write section 16 inside the digital control panel 1 and an operation data input processing section 25 for inputting the calculation value 13s in the control board read out by the operation data readout section 17 inside the digital control panel 1.

Description

  The present invention relates to a digital control panel testing apparatus for testing a digital panel for controlling plant equipment and a test method therefor.

  In recent years, plant control devices such as a generator excitation control device or a steam turbine control device are digital devices in which a control unit composed of one or a plurality of printed circuit boards on which digital arithmetic elements and peripheral components are mounted is integrated in a control panel housing. It consists of a control panel (also called a digital control device).

  This digital control panel converts an input signal into numerical data via an A / D converter and the like, and then converts a control command value calculated based on the numerical data into a command signal by a D / A converter. It is output to a control target such as a device. When testing this digital control panel with a test apparatus, it is necessary to verify input / output signal verification (so-called static characteristic test) and control command calculation logic operation circuit (so-called dynamic characteristic test). .

  In the case of digital control panels that monitor and control power plants (eg, power systems, generators, steam turbines, etc.), not only are there many types and amounts of input / output signals, but control command calculation conditions can be set Different for each plant. For this reason, when performing the static characteristic test, measurement processing using various measuring apparatuses, computer operation for setting conditions, and creation of a test report are manually performed.

  When conducting a dynamic characteristic test, in addition to setting various operating conditions, the tester uses a controlled object simulator to configure a closed loop system in the same way as the actual control loop, and conducts a control characteristic test. Yes.

JP-A-6-276794 (Patent No. 2896039) JP 2001-318716 A

  In the static characteristic test described above, the conformity between the input value to the digital control panel as the test signal and the calculated value obtained in the printed circuit board of the digital control panel (this is called the calculated value in the control board) is verified. There are two types of tests: a test to be performed, and a test to verify the conformity between the calculated value in the control board and the output value actually output from the digital control panel.

  For this reason, the tester sets and observes (measures) the calculated value in the control board during the static characteristic test, and at the same time operates the signal input to the digital control panel or the output value observation from the digital control panel. Must also be done. In addition, there are various signals such as voltage, current, and pulse, and there are a plurality of types of signals handled by the input unit and the measuring device. Therefore, it is common to perform the test manually using different devices according to the signal, and in many cases it is necessary to input and observe the test signal at the same time. In some cases, the examiner must be in charge.

  Also in the dynamic characteristic test, there are usually a plurality of test items, and the execution of these items is selectively performed by a tester, and the manual operation is the same as in the static characteristic test. Some of the conventional technologies are not equipped with individual input signal settings, but are intensively equipped with an operation state setting function. In this case, the operation state setting itself is manually set by the tester according to each test item. There is also something like that.

  Furthermore, although the performance of the simulator used in the past has been improved somewhat by replacing the analog simulator with the simulator using a digital arithmetic device, it does not have the performance equivalent to the actual machine, so the test range is limited. Often limited. Some of the prior arts simulate the voltage and current of a generator in the form of an alternating waveform, but instantaneous values are not calculated. For this reason, this prior art can only simulate the effective value, for example, it has not been possible to verify in detail the control characteristics such as the transient characteristics of the digital control panel constituting the generator excitation control device as the plant control device. .

  SUMMARY OF THE INVENTION An object of the present invention is to provide a digital control panel testing apparatus capable of verifying in detail control characteristics such as transient characteristics by performing input signal verification and output signal verification during a static characteristic test of a digital control panel. And providing a test method thereof.

  In order to achieve the above object, a digital control panel testing apparatus according to an embodiment of the present invention converts a signal input processing means for inputting an actual signal and a signal input by the signal input processing means into a digital signal. The first conversion means, the digital control command calculation means for inputting the signal converted by the first conversion means and calculating the calculated value in the control panel by a predetermined calculation, and the digital control command calculation means A second conversion unit that performs signal conversion for outputting the calculated value in the control panel to the outside, and a signal output unit that outputs the signal converted by the second conversion unit to the controlled device or the like as a control command; A calculation data write processing means for directly writing calculation data to the digital control command calculation means, and a control panel calculated by the digital control command calculation means Computational data read processing means for directly reading out the calculated value, a digital control board, test data setting means for setting a predetermined value necessary for testing the digital control board, and the test data setting means 27, setting data input and display means for setting or confirming data, input signal processing means for inputting a control command output from the signal output section, and in the control panel read from the arithmetic data reading processing means Calculation data input processing means for reading calculated values, calculation section data output processing means for writing data to the digital control command calculation means via the calculation data writing processing means, and a predetermined schedule set in the test data setting means According to the operation state setting or operation command scheduling means for performing the operation command, A real-time digital simulator having a real I / O processing function that conforms to an I / O characteristic assumed by the digital control panel, as well as constituting a plant model to be controlled by the digital control panel, and the operation state setting and operation command scheduling When the real-time digital simulator is controlled by the means, the data input to the input signal processing means from the signal output unit and the output data of the real-time digital simulator are measured, and further input from the test data setting means And an automatic test apparatus including a grade determination and form generation unit for determining a test grade according to a predetermined set value and creating a test grade document.

  In order to achieve the above object, a test method for a digital control panel test apparatus according to an embodiment of the present invention is the operation state setting and operation command scheduling means according to any one of claims 1 to 3. A first step of reading a range, a signal error allowable range, signal name information, and the like relating to the signal selected in step 1 from a test data setting unit and setting an operation state of a control target in the real-time digital simulator; A second step of inputting to the signal input means of the digital control panel via the signal output processing means and the input to the result judgment and form generation means, and the signal input from the signal input means through the first conversion means Input to the digital control command calculation means, and calculate the calculated value in the control board. A third step of inputting to the grade determination and form generation means via the read processing means and an arithmetic data input processing means, and the grade determination and form generation means input in the second step and the third step The signal selected by the operation state setting and operation command scheduling means is used for determining the input signal of the static characteristic test using the signal and verifying the input signal of the static characteristic test from the fourth step of creating the test report. Range, signal error allowable range, signal name information, etc. are read from the test data setting unit, and a command for operating the digital control panel according to an operation command or an operation state is output to the arithmetic data output processing means, and A fifth step of setting an operation state of a control target in the real-time digital simulator; From the control data write processing means to the digital control command calculation means, and the control board calculated value output from the digital control command calculation means is converted to the second conversion means, the signal output section, and the input The sixth step of inputting to the grade determination and form generation unit through the signal processing means, and the static characteristics using the signals input to the grade determination and form generation means in the fifth step and the sixth step It is characterized in that the output signal of the static characteristic test is verified from the seventh step of determining the output signal of the test and creating a test report.

  According to the present invention, the calculation data writing unit for directly writing the test data to the digital control command calculation unit in the digital control panel is provided, and the control board calculation value calculated by the digital control command calculation unit is directly read. And a calculation data output processing unit for outputting test data to the calculation data writing unit in the automatic test apparatus, and calculation in the control board read by the calculation data reading unit. Since the calculation data input processing unit for inputting a value is provided, verification of the input signal and verification of the output signal can be performed during a static characteristic test of a plant control device such as a generator excitation control device or a steam turbine control device.

The block diagram which represented the digital control panel testing apparatus which concerns on Embodiment 1 of this invention with the functional block. FIG. 2 is a system configuration example diagram when a generator excitation control device is configured with the digital control panel of FIG. 1. The functional block diagram at the time of carrying out the automatic test of the excitation control apparatus of the generator shown in FIG. 2 by the automatic test apparatus of FIG. The block diagram which represented the digital control panel testing apparatus which concerns on Embodiment 2 of this invention with the functional block. The block diagram which represented the digital control panel testing apparatus which concerns on Embodiment 3 of this invention with the functional block.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, the same code | symbol or a related code | symbol is attached | subjected to the components and means which are common throughout each figure, and the overlapping description is abbreviate | omitted suitably.

[Embodiment 1]
FIG. 1 is a functional block diagram of a digital control panel testing apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a system configuration example in which a generator excitation control apparatus is configured by the digital control panel of FIG. FIGS. 3 and 3 are functional block diagrams when the generator excitation control apparatus shown in FIG. 2 is automatically tested by the automatic test apparatus of FIG.

(Constitution)
In FIG. 1, reference numeral 1 denotes a digital control panel (also referred to as a digital control apparatus) that functions as a generator excitation control apparatus or a steam turbine control apparatus, and reference numeral 2 denotes an automatic test apparatus that tests the digital control panel 1.

  In the first embodiment, when the digital control panel 1 is tested by the automatic test apparatus 2, the input / output terminals of the digital control panel 1 and the input / output terminals of the automatic test apparatus 2 are connected by the I / O connection lines 101 and 102. In addition, in order to write and read internal calculated values (referred to as calculated values in the control board) calculated by an arithmetic processing unit in the digital control panel 1 (print control board on which the digital arithmetic element and its peripheral components are mounted). The test signal connection lines 103 and 104 prepared separately from the I / O connection lines 101 and 102 described above are connected to each other.

Hereinafter, the internal configuration of the digital control panel testing apparatus according to the first embodiment will be described in detail.
First, the digital control panel 1 will be described.
The digital control panel 1 inputs an actual signal (for example, a generator voltage signal or a main steam pressure signal) detected in a plant such as an electric power system, a generator, or a steam turbine, and converts it into a predetermined magnitude. The signal input unit 11 to output, the first conversion unit 12 that converts the signal 11s output from the signal input unit 11 into a digital signal, and the signal 12s output from the first conversion unit 12 to a predetermined arithmetic expression A digital control command calculation unit 13 that performs calculation based on the calculation value and stores the calculation value for a predetermined time, and a second conversion that performs signal conversion for outputting the signal 13s output from the digital control command calculation unit 13 to the outside Section 14 and a signal output section 15 that outputs the signal 14s output from the second conversion section 14 and outputs it as a control command signal 15s. This control command signal 15s becomes an ignition pulse signal of the thyristor rectifier when the digital control panel 1 is used as a generator excitation control device, and when the digital control panel 1 is used as a steam turbine control device, an increase / decrease valve opening command Is a signal.

  The above-described digital control command calculation unit 13 is configured by mounting a digital calculation element and its peripheral components on a control board. The digital signal 12s input from the first conversion unit 12 is used as the digital control panel 1. It has a function of performing a predetermined calculation using constants and arithmetic expressions necessary for the above calculation, and storing the calculated control board calculated value (digital data) 13 s for a predetermined time.

  The first conversion unit 12 and the second conversion unit 14 described above are usually an A / D converter that converts analog data into digital data, or digital data converted by the A / D converter is converted into other digital data. A D / D converter and the like for conversion are incorporated.

  The configuration from the signal input unit 11 to the signal output unit 15 described above is a general configuration also provided in a conventionally used digital control panel, but the digital control panel 1 of the first embodiment is described above. In addition to the configuration, the following means are newly provided.

  That is, the digital control panel 1 according to the first embodiment is provided with a calculation data write processing unit 16 for directly writing test calculation data generated by the automatic test apparatus 2 to the digital control command calculation unit 13, and this digital control panel 1. In addition to the signal system that outputs the control board calculated value 13 s calculated by the control command calculation unit 13 through the second conversion unit 14 and the signal output unit 15 described above, the control board calculated value 13 s is not passed through the second conversion unit 14. In other words, a calculation data read processing unit 17 for reading without conversion by the second conversion unit 14 is also provided.

  Reading and writing of data by the calculation data writing processing unit 16 and the calculation data reading processing unit 17 are performed via connection lines 103 and 104 for test signals prepared separately from the I / O connection lines 101 and 102.

  It should be noted that the digital control command calculation unit 13 receives an actual signal 12s (more precisely, a signal input from the signal input unit 11 from the signal input unit 11 side, as in input characteristic verification during a static characteristic test described later. ) Is input to the second converter 14 and the calculation data read processor 17 based on the calculated value (digital data) 13s in the control board based on the input signal 12s. However, when the signal 16s is input from the operation data write processing unit 16 side, as in the case of verifying the output characteristic in the static characteristic test described later, control based on the input signal 16s is performed. The in-substrate calculated value (digital data) is output only to the second converter 14.

  As described above, the mechanism in which the digital control command calculation unit 13 switches the output signal circuit in accordance with the input signal is the signal circuit switching device or the signal 16s of the calculation data write processing unit 16 is changed to the signal 12s of the first conversion unit 12. This can be realized by overwriting. Two broken-line arrows and one solid-line arrow in the digital control command calculation unit 13 are images of this state.

Next, the automatic test apparatus 2 will be described.
On the signal input side, the automatic test apparatus 2 inputs a control command 15s from the output signal processing unit 15 via the I / O connection line 102, processes this as input, and outputs it as a signal 23s. Then, the calculation value 13s in the control board read by the calculation data read processing unit 17 is input via the test signal connection line 104, and this is input and processed as a signal 25s. And a setting data input and display unit (also referred to as a human interface device) 28 for inputting setting data used by the tester, an instruction for performing the test, and observing the test result. .

  The automatic test apparatus 2 further performs test conditions and test data (for example, I / O information, target operating conditions, operating conditions, test items, determinations) based on the setting data input and the signal 28s output from the display unit 28 described above. The test data setting unit 27 for setting the conditions, form format, etc.), and the test conditions and test data 27s output from the test data setting unit 27, according to the operation schedule and the operation schedule for each test item An operation state setting and operation command scheduling unit 26 for setting the operation state as needed is provided.

  The automatic test apparatus 2 further outputs an output signal via the test signal connection line 103 and the calculation data write processing unit 16 in accordance with the operation command and the operation status signal 26s set by the operation status setting and operation command scheduling unit 26. (Test data) A calculation data output processing unit 24 for writing 24s to the digital control command calculation unit 13, and an operation schedule and an operation schedule for each test item output from the operation state setting and operation command scheduling unit 26 described above. A real-time digital simulator 22 for setting an operating state of a controlled device such as a generator excitation control device or a steam turbine control device by inputting the operation state 26s according to the above and the signal 23s output from the signal input processing unit 23 described above. Output from the real-time digital simulator 22 A signal output processing unit 21 for inputting a signal 22s corresponding to the behavior of the controlled device and outputting the signal 21s to the signal input unit 11 of the digital control panel 1 via the I / O connection line 101; And a form generation unit 29.

  The grade determination and form generation unit 29 has a function of inputting the following four signals to perform grade judgment for each test item and automatically creating a test grade book 106. Here, the four input signals are the control target simulation output 22 s output from the real-time digital simulator 22, the control command signal 23 s output from the signal input processing unit 23, and the test output from the test data setting unit 27. Data 27s and a signal 25s obtained from the calculation data input processing unit 25 (a signal corresponding to the calculated value 13s in the control board), and combinations of signals differ depending on the test.

(Function)
Hereinafter, a static characteristic test method and a dynamic characteristic test method using the digital control panel test apparatus according to the first embodiment will be described.

(1) Functions at the time of static characteristic test (i) Input signal verification Prior to the start of the static characteristic test, the input / output terminals of the digital control panel 1 and the automatic test apparatus 2 are connected to the actual signal side I as shown in FIG. / O connection lines 101 and 102 and test signal connection lines 103 and 104 are used for connection.

  When a tester inputs setting data, a test execution command 105, or the like to the setting data input and display unit 28, predetermined data and commands 28s necessary for performing the test of the digital control panel 1 are tested from the setting data input and display unit 28. It is read and set in the data setting unit 27. As a result, the operation state setting and operation command scheduling unit 26 is read with the range, signal error allowable range, signal name information, etc. relating to the signal selected by the test data setting unit 27.

  The operation state setting and operation command scheduling unit 26 outputs a signal 26s to the real-time digital simulator 22 that simulates a generator excitation control device, a steam turbine control device, and the like, which are controlled devices, and sets the operation state of the control target. To do.

  The real-time digital simulator 22 outputs a signal 22 s corresponding to the set operation command schedule to the signal output processing unit 21 and also outputs it to the grade determination and form generation unit 29. The signal output processing unit 21 outputs the signal 21s via the I / O connection line 101.

  In the digital control panel 1, the signal 21 s of the signal output processing unit 21 sent via the I / O connection line 101 is input by the signal input unit 11, and the digital control command calculation unit 13 passes through the first conversion unit 12. input.

  The digital control command calculation unit 13 performs a predetermined calculation using the input signal 12s and outputs the calculated control panel calculated value 13s to the second converter 14 and also to the calculation data read processing unit 17. .

The second converter 14 digitally converts the input control panel calculated value 13 s and outputs the signal 14 s to the signal output unit 15. The signal output unit 15 outputs the input signal 14 s and inputs the input signal 14 s to the signal input processing unit 23 of the automatic test apparatus 2 through the I / O connection line 102.
On the other hand, the calculation data read processing unit 17 outputs the calculated value 13 s in the control panel to the calculation data input processing unit 25 of the automatic test apparatus 2 via the test signal connection line 104.

  In the automatic test apparatus 2, the signal input processing unit 23 inputs the signal 15 s input via the I / O connection line 102 and outputs the signal 23 s to the real-time digital simulator 22 and the grade determination and form generation unit 29 for calculation. The data input processing unit 25 inputs the control panel calculated value 13s and outputs an output signal 25s to the grade determination and form generation unit 29.

  The grade determination and form generation unit 29 has already received the information data 27s of the test data setting unit 27 and the signal 22s from the real-time digital simulator 22, and in addition to this, the calculation data input process output from the digital control panel 1 The signal 25s of the unit 25 and the signal 23s of the signal input processing unit 23 are input.

  The grade determination and form generation unit 29 compares the output signal 22s of the real-time digital simulator 22 and the output signal 25s of the calculation data input processing unit 25 among the input signals, thereby controlling the control target as specified in each test item. Automatic determination of signal input and creation of test report.

(Ii) Verification of output signal Data 105 such as a range related to the selected signal set in the setting data input and display unit 28, a signal error allowable range, signal name information, etc. is passed through the test data setting unit 27 to set the operation state and operation. It is read into the command scheduling unit 26.

  The operation state setting and operation command scheduling unit 26 outputs a command value 26 s corresponding to the control command value of the digital control command calculation unit 13 to the real-time digital simulator 22 to be controlled by the digital control panel 1, and The value 26s is also output to the calculation data output processing unit 24. The output 22s of the real-time digital simulator 22 is recorded in the grade determination and form generation unit 29.

  The output signal 24 s of the calculation data output processing unit 24 is written to the digital control command calculation unit 13 via the test signal connection line 103 and the calculation data write processing unit 16 of the digital control panel 1. At this time, the signal 21s from the signal output processing unit 21 is input to the digital control command calculation unit 13 through the first converter 12 to the signal input unit 11 of the digital control panel 1, but as described above, the calculation data is written. When the signal 16 s of the processing unit 16 is input to the digital control command calculation unit 13, the control board calculated value 13 s is output only to the second conversion unit 14 as indicated by a solid arrow, and is output to the calculation data read processing unit 17. Not.

As a result, the calculated value 13 s in the control board of the digital control command calculation unit 13 is output to the signal output unit 15 via the second conversion unit 14, and further, the signal input of the automatic test apparatus 2 via the I / O connection line 102. The control command signal is input to the unit 23.
In the automatic test apparatus 2, the control command signal input to the signal input unit 23 is input and recorded as a signal 23 s to the grade determination and form generation unit 29.

The grade determination and form generation unit 29 is a signal corresponding to a signal (test signal) 24s commanded to the digital control panel 1 through the arithmetic data output processing unit 24, and a signal 22s output from the real-time digital simulator 22, and a signal By comparing with the control command signal 23s output from the input unit 23, it is automatically determined that a control signal as specified in each test item is output and a test report is created.
As described above, the verification (i) of the input signal and the verification (ii) of the output signal during the static characteristic test of the digital control panel 1 are performed.

(2) Function at the time of performing the dynamic characteristic test Regarding the function at the time of performing the dynamic characteristic test, the automatic test apparatus 2 sends the signal 15s output from the signal output unit 15 of the digital control panel 1 via the I / O connection line 102. The signal input unit 23 is further input to the real-time digital simulator 22 that simulates the controlled object.

  Then, the real-time digital simulator 22 calculates an output value 22 s corresponding to the characteristics of the controlled object, and the calculated value 22 s is sent to the signal input unit 11 of the digital control panel 1 via the signal output processing unit 21 and the I / O connection line 101. The signal 23s is input to the real-time digital simulator 22 through the first converter 12, the digital control command calculation unit 13, the second converter 14, the signal output unit 15, the I / O connection line 102, and the signal input unit 23. Is done. As a result, it is possible to simulate a closed loop configuration with the simulation control target (real-time digital simulator 22).

  In this dynamic characteristic test, the operation condition (characteristic parameter) to be controlled is set from the setting data input / display unit 28 to the test data setting unit 27, and the test data setting unit 27 sets the operation state setting and operation command scheduling unit. 26, setting test execution scheduling to the digital control command calculation unit 13 via the calculation data output processing unit 24 and the calculation data write processing unit 16 of the digital control panel 1 via the test signal connection line 103. Accordingly, the calculated value 13s in the control board of the digital control command calculation unit 13 is output only to the second conversion unit 14 as indicated by the solid line arrow, and is output to the signal output unit 15 via the second conversion unit 14, and further to the I / O. A control command signal is input to the signal input unit 23 of the automatic test apparatus 2 via the connection line 102. Then, in the automatic test apparatus 2, the control command signal input to the signal input unit 23 is recorded in the grade determination and form generation unit 29 as a signal 23 s.

  As a result, even in the case of performing a dynamic characteristic test, a plurality of test items can be automatically tested according to a predetermined schedule, and the test result determination and the report generation unit 29 can determine the test result and create a test report. Done automatically.

(effect)
As described above, according to the first embodiment, the calculation data writing unit 16 for directly writing test data to the digital control command calculation unit 13 in the digital control panel 1 and the digital control command calculation unit 13 include A calculation data reading unit 17 for directly reading the calculated control board calculated value 13 s is provided, and test data is output to the calculation data writing unit 16 in the digital control panel 1 in the automatic test apparatus 2. And a calculation data input processing unit 25 for inputting the control board calculated value 13s read by the calculation data reading unit 17 in the digital control panel 1 for control. Parameters and signal verification schedules can be set automatically, and the static characteristics of plant control devices such as generator excitation control devices or steam turbine control devices Verification of verification and the output signal of the input signal at the time of the test may be performed.

  Further, in the first embodiment, a dynamic characteristic test can also be performed. In addition, control parameters and signal verification schedules can be set automatically at that time, and work performed by testers during conventional testing can be automated, greatly reducing test costs. It becomes possible.

[Application example]
FIG. 2 is a system configuration example diagram when the generator excitation control device is configured by the digital control panel of FIG.

In FIG. 2, G is an armature of the generator, and F is a field winding. The output terminal of the armature G of the generator is connected to the bus BUS of the power system via the main transformer MTR and the generator breaker 52G. Three-phase AC power (3φAC) output from the excitation power transformer Ex _- T provided at the output terminal of the armature G of the generator generates a DC voltage rectified by the thyristor rectifier Rec via the field breaker 41. The magnetic winding F is supplied as a field voltage VF.

  1A is an excitation control device corresponding to the digital control panel 1 in FIG. 1, and outputs an ignition pulse to the thyristor element of each arm constituting the thyristor rectifier Rec. This excitation control device 1A outputs a pulse signal (for six phases) to the thyristor rectifier Rec to control the field voltage VF of the field winding F, thereby detecting the generator output from the instrument transformer PT. Control is performed so that the voltage Vg matches the target voltage setting value.

  The excitation control device 1A includes a voltage input circuit 11A (corresponding to the signal input unit 11 in FIG. 1) 11A for inputting the generator detection voltage Vg and a target voltage set value 90R preset in a target voltage setter (not shown). And an adder ADD that calculates a voltage deviation ε between the generator detection voltage Vg and a predetermined calculation using the deviation ε (including at least a calculation for making the voltage deviation ε zero, and in some cases, underexcitation control 13A (corresponding to the digital control command calculation unit 13 in FIG. 1) and a pulse output unit (converting the calculation data output from the calculation unit 13A into a pulse signal and outputting it) (Corresponding to the signal output unit 15 in FIG. 1) 15A and a calculation data writing unit for writing calculation data output from the automatic test apparatus (not shown in FIG. 2) into the calculation unit 13A (shown in FIG. 1). (Corresponding to the data writing processing unit 16) 16A and a calculation data reading unit (corresponding to the calculation data reading processing unit 17 in FIG. 1) 17A for reading the calculated value in the control board calculated by the calculation unit 13A. Yes. Note that the calculation data writing unit 16A and the calculation data reading unit 17A of the excitation control apparatus 1A are not used during the operation of the generator, and are indicated by broken line frames.

FIG. 3 is a functional block diagram when the excitation control apparatus 1A of FIG. 2 is automatically tested by the automatic test apparatus 2 of the first embodiment.
In FIG. 3, 1A is an excitation control device having the same configuration as the excitation control device 1A shown in FIG. The inside of the thick broken line frame in the figure represents the function corresponding to the automatic test apparatus 2 in FIG. 1, and the inside of the real time simulator 22 shows the characteristics of the main circuit and the excitation circuit of the generator in FIG. 2 in real time. Modeled with mathematical expressions so that they can be simulated. Incidentally, G is a generator armature model, Re is a thyristor rectifier model, 41 is a field breaker model, and 52G is a generator breaker model.

  In addition, a signal output processing unit 21 corresponding to PT is provided in the automatic test apparatus 2, and a signal input processing unit 23 corresponding to the signal input processing unit 23 in FIG. Is converted into an electrical signal for IO processing.

  Furthermore, the portion indicated by the alternate long and short dash line frame inside the automatic test apparatus 2 is a portion for performing test scheduling and creating a report form, and each of the components excluding the signal output processing unit 21, the real-time simulator 22 and the signal input processing unit 23 described above. Means, that is, a calculation data output processing unit 24, a calculation data input processing unit 25, an operation state setting and operation command scheduling unit 26, a test data setting unit 27, a setting data input and display unit 28, and a grade determination and form generation unit 29. I have.

  In the example of FIG. 3, it is possible to construct a system that performs sampling for 2 μs in IO processing, and simulation with an accuracy of about 1 / 10,000 cycles of a commercial frequency of 50 Hz / 60 Hz is possible.

As a result, the real-time simulator 22 in FIG. 3 can obtain the pulse output (for 6 phases) from the pulse output unit 15A and calculate the field voltage VF in real time from the thyristor rectifier model Re. Is possible.
As described above, according to the application example of FIG. 3, it is possible to verify the field voltage, the field current, the generator voltage, the generator current, and the like that could not be verified by the conventional test apparatus.

  The above explanation is an example in which the generator excitation control device is configured by the digital control panel 1, but the digital control panel 1 is not only a generator excitation control device but also other plant control devices such as a steam turbine control device. Can be configured. In this case, however, it goes without saying that the mathematical expression model in the real-time digital simulator 22 differs depending on the plant.

[Embodiment 2]
FIG. 4 is a functional block diagram when an automatic test is performed by combining a digital control panel as a plant control apparatus according to Embodiment 2 of the present invention with an automatic test apparatus.
In FIG. 4, the second embodiment is different from the first embodiment in FIG. 1 in that the calculation data is read and written by the transmission means.

  That is, the digital control panel 1 is provided with a calculation data transmission input unit 161 for setting the write data output from the automatic test apparatus 2 by a transmission signal in the preceding stage of the calculation data write processing unit 16, and further, a calculation data reading process An arithmetic data transmission output processing unit 171 for outputting read data to the automatic test apparatus 2 as a transmission signal 171s is provided at the subsequent stage of the unit 17. Further, the automatic test apparatus 2 is provided with a calculation unit data transmission input processing unit 251 for inputting write data from the digital control panel 1 as a transmission signal before the calculation data input processing unit 25, and further a calculation data output processing unit. An operation unit data transmission output processing unit 241 for transmitting the transmission data 241s is provided downstream of 24.

  A wired LAN or a wireless LAN is used as a connection medium for connecting the operation data transmission input unit 161 to the operation unit data transmission output processing unit 241, and the operation data transmission output processing unit 171 to the operation unit data transmission input processing unit 251, respectively. Adopted. Other configurations are not particularly different from those of the digital control panel 1 and the automatic test apparatus 2 shown in FIG.

  As described above, in the second embodiment, 161, 171, 251 and 141 are provided as means for transmitting operation data to the part of the digital control panel 1 and the automatic test apparatus 2 that inputs and outputs the calculated value 13s in the control board. Arithmetic data transmission input unit 161-arithmetic unit data transmission output processing unit 241 and arithmetic data transmission output processing unit 171-arithmetic unit data transmission input processing unit 251 are connected by wired LAN or wireless LAN, respectively, to read arithmetic unit data Since writing is performed, the amount of wiring can be reduced as compared with the case where calculation data is transmitted and received by the test signal connection lines 103 and 104 as in the first embodiment, and wiring work is facilitated. , Can reduce the burden on the examiner.

[Embodiment 3]
FIG. 5 is a functional block diagram when an automatic test is performed by combining a digital control panel as a plant control apparatus according to Embodiment 3 of the present invention with an automatic test apparatus.

5, in the case of the third embodiment, the digital control panel 1 has the same configuration as that in FIG. 1, and only the automatic test apparatus 2 is different from that in FIG.
That is, the automatic test apparatus 2 according to the third embodiment is provided with setting data and display data transmission unit 281 for performing transmission / reception processing of the transmission signal of setting data and display data in place of setting data input and display unit 28, and further, results determination In addition, a result and form data transmission unit 291 is provided as means for transmitting the results and form data of the form generation unit 29 as transmission signals.

  In the third embodiment, the setting data is input and set in the display unit 28 at a factory remote from the site where the digital control panel 1 and the automatic test apparatus 2 are installed, and the grade determination and form are performed. A determination result, a form, and the like by the generation unit 29 can be acquired.

  In addition, Embodiment 1 thru | or 3 demonstrated above was shown as an example, and is not intending limiting the range of invention. In addition, these embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Digital control board (digital control apparatus) 11 ... Signal input part, 12 ... 1st conversion part, 13A ... Arithmetic processing part, 13 ... Digital control command calculation part, 14 ... 2nd conversion part, 15 ... Signal output part , 16 ... Calculation data write processing section, 17 ... Calculation data read processing section, 2 ... Automatic test device, 21 ... Signal output processing section, 22 ... Real-time digital simulator, 23 ... Signal input processing section, 24 ... Calculation data output processing section , 25 ... Calculation data input processing unit, 26 ... Operation state setting and operation command scheduling unit, 27 ... Test data setting unit, 28 ... Setting data input and display unit, 29 ... Grade determination and form generation unit, 101 ... I / O Connection line 102 ... I / O connection line 103 ... Test signal connection line 104 ... Test signal connection line 105 ... Test data input 106 ... Result determination And test report creation, 161 ... calculated data transmission input unit, 171 ... calculated data transmission output processing unit, 241 ... calculated unit data transmission output processing unit, 251 ... calculated unit data transmission input processing unit, 281 ... setting data and display data Transmission unit, 291... Grade and form data transmission unit.

Claims (4)

Signal input processing means for inputting a real signal;
First conversion means for converting a signal input by the signal input processing means into a digital signal;
A digital control command calculation means for inputting a signal converted by the first conversion means and calculating a calculated value in the control panel by a predetermined calculation;
A second conversion unit for performing signal conversion for outputting the calculated value in the control panel calculated by the digital control command calculating means to the outside;
A signal output unit that outputs a signal converted by the second conversion unit to a controlled device or the like as a control command;
Calculation data write processing means for directly writing calculation data to the digital control command calculation means;
A digital control panel comprising: arithmetic data reading processing means for directly reading out the calculated value in the control panel calculated by the digital control command calculating means;
Test data setting means for setting a predetermined value necessary for the test of the digital control panel;
Setting data input and display means for setting or confirming data in the test data setting means,
Input signal processing means for inputting a control command output from the signal output unit;
Calculation data input processing means for reading calculated values in the control panel read from the calculation data reading processing means,
Arithmetic unit data output processing means for writing data to the digital control command arithmetic means via the arithmetic data write processing means;
According to a predetermined schedule set in the test data setting means, an operation state setting and an operation command scheduling means for performing an operation state setting or an operation command, and
A real-time digital simulator having a real I / O processing function conforming to an I / O characteristic assumed by the digital control panel, while constituting a plant model to be controlled by the digital control panel;
When the real-time digital simulator is controlled by the operation state setting and operation command scheduling means, the data input to the input signal processing means from the signal output unit and the output data of the real-time digital simulator are measured, and A digital tester comprising: an automatic test apparatus including a grade determination and form generation unit for determining a test grade according to a predetermined set value input from the test data setting means and creating a grade book Control panel test equipment.
  An arithmetic data transmission input means for setting write data by a transmission signal is added to the arithmetic data write processing means, and an arithmetic data transmission output processing means for outputting read data by a transmission signal is added to the arithmetic data read processing means, Further, arithmetic unit data transmission output processing means for transmitting data to the arithmetic data transmission input means by transmission is added to the arithmetic part data output processing means, and write data is input to the arithmetic unit data input processing means by transmission 2. The digital control panel testing apparatus according to claim 1, further comprising a partial data transmission input processing means.   Setting data and display data transmission means for performing transmission / reception processing of transmission signals of setting data and display data are added to the setting data input and display means, and results and form data are transmitted as transmission signals to the results determination and form generation means. The digital control panel testing apparatus according to claim 1, further comprising means for transmitting results and form data. In the test method of the digital control panel testing apparatus according to any one of claims 1 to 3,
A range relating to a signal selected by the operation state setting and operation command scheduling means, a signal error allowable range, signal name information, and the like are read from a test data setting unit, and an operation state to be controlled is set in the real-time digital simulator. Process,
A second step of inputting from the real-time digital simulator to the signal input means of the digital control panel via the signal output processing means, and inputting to the grade determination and form generation means;
The signal input from the signal input means is input to the digital control command calculation means through the first conversion means, and the control board calculated value is passed through the calculation data read processing means and the calculation data input processing means to determine the result and generate the form. A third step of inputting into the means;
From the fourth step of making a test result document while making a determination of an input signal of a static characteristic test using the signal input to the result determination and form generation means in the second step and the third step Perform input signal verification of static characteristics test,
A command for operating the digital control panel in accordance with an operation command or an operation state by reading a range relating to the signal selected by the operation state setting and operation command scheduling means, a signal error allowable range, signal name information, etc. from a test data setting unit. Is output to the arithmetic data output processing means, and a fifth step of setting an operation state of a control target in the real-time digital simulator,
The calculated value in the control board is written from the calculation data output processing means to the digital control command calculation means via the calculation data write processing means, and output from the digital control command calculation means, the second conversion means, the signal A sixth step of inputting to the grade determination and form generation unit via the output unit and the input signal processing means;
From the seventh step of making an output signal of a static characteristic test using the signals input to the grade determination and form generation means in the fifth step and the sixth step and creating a test report A test method for a digital control panel testing apparatus, characterized in that an output signal of a static characteristic test is verified.

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