JPH0640699B2 - Governor simulator device - Google Patents

Description

Description: [Object of the invention] (Industrial field of application) The present invention relates to a governor simulator device, and more particularly to a governor simulator device optimal for performing failure training of a governor control device in a hydroelectric power plant. Is.

(Prior Art) Recently, various types of plants have become large-scale and highly functional with the development of digital control devices and the expansion of application of computers. Pumped storage power plants have become the mainstream in response to the increase in size, and are equipped with multiple units to increase capacity. In addition, the operation modes of the plant include power generation operation, pumping operation,
Phase control operation and trial transmission operation are diversified, and various automatic controls such as start control, flow rate control, AFC control, ALR control, AQR control, individual operation control, and program operation control are applied in each operation. It is fully automated. Therefore, the control device required for these operation controls is complicated and highly functional.

By the way, since the hydroelectric power plant is unmanned and the continuous operation is controlled by one person from the distant control station, when the control device fails or manual operation is performed at the power plant at the time of inspection. However, the operator needs daily training so that he / she can understand the contents of the control device well and can take appropriate actions in the case where the failure of the control device is invented.

However, the current plant simulator device for the purpose of operation training is a dynamic model of a pump turbine, a generator / motor, etc.
Although various kinds of electricity of the generator motor and quantitative data such as the hydraulic system of the governor control device are displayed on the CRT and the method of moving the instrument on the monitoring control panel is applied,
A method that simulates a failure of the control device, confirms the state of the main engine at the time of the control device failure on the instruments on the monitoring control panel, and allows training to discover the cause with a sense of realism is not applied. Absent. Therefore, in reality, the corresponding training of the control device is based on the simple learning of the control block diagram and drawings.

(Problems to be Solved by the Invention) As described above, in the conventional simulator device, the failure of the governor control device is simulated, and the failure state is displayed on the instrument on the panel to display the failure condition of the governor control device. There has been a problem that it is impossible to train the movement of the main engine or to conduct training to find out the cause of failure of the governor control device with a sense of temporaryness.

Therefore, in the present invention, a failure of the governor control device is simulated, the failure state is displayed on the board to train the movement of the main engine when the governor control device fails, and the training to find the cause of the failure of the governor control device is temporarily performed. It is an object of the present invention to provide a highly reliable governor simulator device that can be carried out with the use of the above.

[Structure of the Invention] (Means for Solving Problems) In order to achieve the above-mentioned object, a governor simulator device according to the present invention includes a simulation board for monitoring and controlling the state of a plant, a sequence control circuit for the plant, and It consists of a plant simulator device that simulates various electrical and mechanical states of the plant and sends the simulated amount to the above simulation board, and various analog substrates. A governor control device for adjusting
Consists of a failure setting device equipped with a switch for setting a simulated failure part of the board during the failure training of this governor control device, and a hardware test device equipped with a simulated power supply device for detecting the failure part of the governor control device. It is characterized by doing so.

(Operation) In the above-mentioned governor simulator device, the failure of the governor control device is set by the failure setting device at the time of the failure training of the governor control device, and the main machine state is simulated on the simulation board by the signal from the plant simulator device. Then, the main machine state at the time of failure of the governor control device can be realized, and the hard test device can check the current and voltage of the board of the governor control device to find the failed part.

(Example) Hereinafter, one example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a configuration example of a governor simulator device according to the present invention. In FIG. 1, 1
Is a simulation board equipped with switches and instruments for monitoring and controlling the state of the plant, 2 is a sequence control circuit of the plant, and various electrical quantities and mechanical quantities of the plant are simulated, and the simulated quantity is shown on the simulation panel 2 A plant simulator device 3 for sending out is a failure setting device equipped with a switch for setting a simulated failure part of a board at the time of failure training of a governor control device 4 which will be described later, and 4 is composed of various analog boards for guiding blades of a water turbine. A governor control device 5 that variably adjusts the rotation speed and output of the main machine is a hard power supply device that includes a simulated power supply device for detecting a faulty part of the governor control device 4, a digibol, a tester, and the like.

FIG. 2 shows an example of a circuit configuration for setting a simulated failure portion of the board of the governor control device 4, which will be described in detail later. In FIG. 2, normally open contact switches Ao, Bo, Co ... Ho provided in the failure setting device 3 and contacts provided in the governor control device 4 for opening a signal flow between the analog boards. Ab, Bb, Cb, ..., Hb
, H are connected in series and connected between the DC control power source buses P and N.

FIG. 3 shows an internal configuration example of the governor control device 4 and a connection configuration example of the governor control device 4 and the hardware test device 5. In FIG. 3, a simulated power source device 21 in the hardware test device 5 inputs a simulated input voltage to the F / V converter board 11 in the governor control device 4, and the level-converted signal is normally closed. Is input to the ΔF detector board 12 via the failure simulation contact Ab and the level-converted signal is input via the normally closed failure simulation contact Bb.
To enter. In addition, the signal from the load setter board 13
The droop rate calculator board 14 through the normally closed failure simulation contact Cb
To enter. Further, after the signal from the GV return resistor 23 in the hardware test device 5 is input to the position detector board 17 in the governor control device 4 to be level-converted, it is passed through the normally closed fault simulated contact Gb. Input to the droop rate calculator board 14.

On the other hand, the signal from the droop rate calculator board 14 is input to the PID calculator board 15 via the normally closed failure simulation contact Db, and the level-converted signal is inputted here to the normally closed failure simulation contact Eb. Input to the amplifier 16 via. Further, the signal level-converted by the amplifier board 16 is input to the converter coil 22 in the hardware test apparatus 5 via the normally closed failure simulation contact Fb. Further, the simulated power source from the simulated power source device 21 is input to the power source device 18 in the governor control device 4, and the level-converted control power source is passed through the normally closed fault simulated contacts Hb. I am trying to input to the board.

Next, the operation of the governor simulator device according to the present embodiment will be described.

For operation of the main engine, first, by operating a switch (not shown) on the simulation panel 1, the plant simulator device 2 simulates the control process of the plant, and various kinds of rotations of the main engine, the opening of the guide vanes of the water turbine, and the like. The plant state is simulated, and the simulated amount is displayed on an instrument (not shown) on the simulation board 1. In the plant simulator device 2, a control circuit equivalent to the governor control device 4 is dynamically modeled.

Therefore, when training various board failures of the governor control device 4 by the failure setting device 3, the failure details are input from the failure setting device 3 to the plant simulator device 2, and the plant simulator device 2 outputs the analog data in the governor control device 4. A plant state due to a board failure is simulated, and this is displayed on an instrument (not shown) on the simulation board 1 or a failure indicator is operated.

On the other hand, when searching for a faulty part of the governor control device 4, it is started after confirming the stop of the main engine by an operation indicator (not shown) on the simulation board 1. Prior to searching for the faulty part of the governor control device 4, the instructor operates an arbitrary switch of the fault setting device 3 to simulate the fault of the board in the governor control device 4. Here, ΔF
Setting the substrate failure of the detector substrate 12 will be described. That is, first, the instructor is the failure setting device 3
By operating the switch Bo, the auxiliary relay B operates and its normally closed contact Bb opens. The trainee inputs power from the simulated power supply device 21 of the hard test device 5 to the power supply device 18 of the governor control device 4 in order to search for a faulty part of the governor control device 4 to utilize the governor control power supply. In addition, the trainee uses a voltage corresponding to the rotation speed of the main engine from the simulated power supply device 21 to the F / V converter board 11 of the governor control device 4.
Perform simulated input work to. Then, the trainee measures the output voltage of each substrate by using a tester or the like and pursues the failure point. In this case, when the failure of the ΔF detector substrate 12 is found, it is found that the simulated input is at the input portion of the ΔF detector substrate 12, but the input voltage of the droop rate calculator substrate 14 is not present.

As described above, in the present embodiment, the state of the plant is controlled by the plant simulator device 2 by the simulated panel 1 that monitors and controls the state of the main engine of the plant and the fault setting device 3 that sets the faulty part of the governor control device 4. Is simulated and the plant status is displayed on the simulation board 1, so that the trainee can confirm the movement of the entire plant. Also, when searching for a faulty part of the governor control device 4,
It is possible to perform training with a sense of realism because wiring of test wires can be performed and board voltage can be measured with a tester, etc. in the same way as on-site actual work, and the location of failure can be pursued. ， It is possible to greatly enhance the effect of training.

In the above embodiment, the case where the operation of the failure setting device 3 is performed by operating the switch that is the movable contact has been described. However, instead of this switch, the keyboard of the CRT operator console is used, and the data of the keyboard is displayed. Even if an input is made to the plant simulator device 2 and the fault setting auxiliary relay in the governor control device 4 is operated from the plant simulator device 2 via the output converter, the same effect as described above can be obtained. .

In addition, the present invention can be variously modified and implemented within the scope of the invention.

[Effects of the Invention] As described above, according to the present invention, a simulation board for monitoring and controlling the state of a plant, a sequence control circuit of the plant, and various states of electric quantity and mechanical quantity of the plant are simulated, and A plant simulator device that sends a simulated amount to the above simulation board and a variety of analog boards, and a governor control device that adjusts the rotation speed and output of the main engine by changing the guide vanes of the water turbine, and failure training of this governor control device. Since it is composed of a failure setting device equipped with a switch for setting a simulated failure part of the board and a hardware test device equipped with a simulated power supply device for detecting the failure part of the governor control device, the governor Simulate a controller failure and display the failure status on the board to train the movement of the main engine when the governor controller fails. It is possible to provide a highly reliable governor simulator device capable of performing training for finding the cause of a failure with a sense of temporaryness.

[Brief description of drawings]

FIG. 1 is a configuration block diagram showing an embodiment of a governor simulator device according to the present invention, FIG. 2 is a circuit configuration diagram for setting a failure point of a governor control device in the embodiment, and FIG. 3 is a governor in the embodiment. It is a circuit diagram which shows the example of a connection structure of a control apparatus and a hardware test apparatus. 1 ... Simulated board, 2 ... Plant simulator device, 3 ...
… Fault setting device, 4 …… Governor control device, 5 …… Hard test device, 11 …… F / V converter board, 12 …… ΔF detector board, 13 …… Load setter board, 14 …… Drunk rate Arithmetic board, 15 ... PID arithmetic board, 16 ... Magnifier board, 17 ... Position detector board, 18 ... Power supply device, 2
1 ... Simulated power supply device, 22 ... Converter coil, 23
...... GV return resistor, Ao, Bo, Co, Do, E
o, Fo, Go, Ho ... Failure setting switch, A, B,
C, D, E, F, G, H ... Auxiliary relay for failure setting, A
b, Bb, Cb, Db, Eb, Fb, Gb, Hb ... Normally closed contact of auxiliary relay for failure setting, P, N ... DC control power bus.

Claims (1)

[Claims] 1. A simulation board for monitoring and controlling the state of the plant, a sequence control circuit of the plant, and a plant simulator for simulating the states of various electric quantities and mechanical quantities of the plant and sending the simulated quantities to the simulation board. A governor control device that consists of a device and various analog boards, and adjusts the rotation speed and output of the main engine by changing the guide vanes of the water turbine, and for setting the simulated failure location of the board during failure training of this governor control device. A governor simulator device comprising a failure setting device equipped with a switch and a hardware test device equipped with a simulated power supply device for detecting a failure location of the governor control device.