JPS60195333A - Automatic control device for gas-turbine engine - Google Patents

Abstract

PURPOSE:To control the operation of a gas turbine so properly in an integral manner, by controlling an engine in comformity with an operating sequence on the basis of comparative results between an operating state and a preset operating condition in the engine. CONSTITUTION:A sensor 1 detects a parameter on an operating state in an engine, while a detecting part 6 detects a power failure, anything unusual in a generating state or the like in a detection circuit 2, a multiplexer 3, a sample hold circuit 4 and an analog-to-digital converter 5 all processing signals out of the sensor 1. In addition, it consists of a select switch for an operation mode, an analog-to-digital converter 5, a control part 10 composed of a setting switch 8, an inspection switch 9 or the like, an I/O 11, a bus 12, a central processing unit 13, a read-only memory 14, a random access memory 15, a clock 16, output interfaces 17, 18 and 19 for control, alarm and display, and a display part 20. With this constitution, operation control over those of starting, stopping, restarting or load selection, etc., of a gas turbine is automatically performable in a proper manner according to external signals including a power failure, etc., and operating conditions in a gas turbine generating set.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gas turbine engine-driven power generation device, and particularly to an automatic operation control device for the emergency power generation device.

``Object of the Invention'' The first object of the present invention is to automatically detect a power outage in response to an external signal such as a power outage, and a detection signal VC corresponding to the operating state such as the rotational speed of the gas turbine engine, exhaust temperature, lubricating oil pressure, etc. It is to comprehensively and appropriately control the operation of the gas turbine power generation device, such as starting, stopping and restarting the gas turbine engine, and switching the load. In particular, if the gas turbine engine does not reach a state capable of self-sustaining operation after one startup, the startup operation (hereinafter abbreviated as "restart") is automatically performed again. Conventionally, it has not been possible to perform appropriate operational control over a wide range of control items, and in particular, when a startup failure occurs, the gas turbine engine is simply stopped, and subsequent processing is left to the human hands. The emergency power generator K is extremely unsatisfactory in this respect, and improvements are desired.

A second object of the present invention is to automatically and constantly monitor the operating state of a gas turbine power generator and issue necessary 1f warnings for safety. Conventionally, monitoring items are insufficient for only some of the items that require monitoring, such as overspeed of the gas turbine engine, abnormal increase in exhaust temperature, and abnormal decrease in lubricating oil field power.

The third object of the present invention is to prevent runaway of the central processing unit (hereinafter abbreviated as CPU) and input/output interface (hereinafter abbreviated as CPU) in a control device (hereinafter abbreviated as control device) of a gas turbine power generator using a microcomputer. (hereinafter abbreviated as engineering/0)
This is to ensure safety in the event that appropriate control signals, etc. cannot be obtained due to destruction of the equipment. Conventionally, when the I/O boat has a high I/O speed, control signals and the like that should not be output are output, which may adversely affect the operation of the cast turbine engine.

A fourth object of the present invention is to make it possible to stop all operations of the gas turbine power generator in an emergency 114+.

A fifth object of the present invention is to ensure that the wiring between the control device and the gas turbine engine operation-related equipment (abbreviated as "suppressor"), such as the starter, the solenoid valve of the ignition system 14 supply path, and the fuel cylinder, is properly connected. , to check whether the operation of each auxiliary machine is appropriate without starting the gas turbine engine completely, and to be able to perform cranking, venting air from the fuel supply path, etc.

The increase in the number of control objects, monitoring items, and alarm display items has made the wiring complex and difficult to check, and it is desired that a simple means for inspecting the wiring be realized. Furthermore, there is a demand from East Japan for a means to easily conduct tests after installation of gas turbine generators, inspections after handling abnormal situations, preparations for operation, etc.

"Structure of the Invention" The structure of an automatic control device for a gas turbine power generator according to the present invention will be described below based on an embodiment with reference to the drawings.

In Fig. 1K, a sensor 1 detects parameters related to the operating state of the gas turbine engine, a detection circuit 2 that performs all signal processing, a multiplexer 3 (MPX), a sample hold circuit 4 (S/H), and an A/X conversion. 5, a detection unit 6 for detecting power outages and abnormalities in the power generation state, an operation unit 10 consisting of an operation mode changeover switch (hereinafter abbreviated as changeover seat t) 7, a setting SW8, an inspection SW9, etc., a VO 11, a bus 12, a CPU 13,
ROMI4, RAMI5, clock 16, control, alarm and display output interfaces 17, 18, and 1
9, a display section 20.

That is, the parameter signals related to the operating state of the gas turbine engine, such as the gas turbine engine rotational speed 1a and the exhaust temperature 1b, detected by the sensor 1 and processed by the detection circuit 2 to a signal level that can be post-processed, are sequentially taken in by the multiplexer 3. After being sent to the sample and hold circuit 4, it is converted into a digital signal by the converter 5, and the
It is stored in RAMI4 via 11ft. Also, power outage 6
Abnormalities in the power generation state, such as a and power generation establishment 6b, are detected by the detection unit 6 and are captured into the RAM 15K via the VO10.

Incidentally, the ROM 14 stores a program that is responsible for overall control of the operation, alarm, and display of the gas turbine generator, and the CPU 13 determines and controls each process based on the program. Further, I/011 controls inputs such as switch data, control outputs, and the like. Control output signals and the like from I/011 are applied to output interfaces 17 to 19 consisting of transistors, relays, etc., and output as control, alarm, and display outputs, respectively.

That is, when sensor signals related to the operating state of the gas turbine engine and detection signals such as power outages and abnormalities in the power generation state are taken in, the CPU 13 uses the operating sequences, setting conditions, clock signals from the clock 16, etc. stored in the ROMI 4 in advance. Then perform comparative calculations to start, stop, restart, load switch, etc. of the gas turbine engine! iI'tp1 occurrence, etc. decisions are made, and based on the decision results I/0
11, output interfaces 17 to 19K control signals, etc. are outputted. The display unit 20 performs display based on the control signal K.

On the other hand, the operation unit 10 includes a mode switching switch SW7 for setting an operation mode such as manual, automatic, test, etc., and a digitizer /l/ for setting the operation sequence control time of the gas turbine engine.
SW, setting field 8 such as digital y for setting display contents on the display unit 20 for displaying operations or alarms, and alarm reset switch SwIOa for resetting the alarm, etc.
An inspection SW 9 is provided as a means for achieving the fifth object of the invention.

That is, when the check SW 9a is input, the CPU 13 reads out a procedure stored in advance in the ROM 14, that is, a procedure for activating the ignition device in response to this signal. Since this will be operated, the wiring leading to the ignition system and its operation will be checked.

When inspection sw9b is input, the fuel Fl cutoff valve 1 is
The control outputs of the solenoid valves of the twisting material supply path, such as the 7b1 bypass valve 17C and the enorich valve 17d, are obtained, and since these auxiliary machines are operated, their wiring and operation checks are performed. Similarly, in response to input of inspection SW9c, fuel bong 17e, bypass valve 17C and enrichment valve 17
Since the control output of d is obtained and ζ these auxiliary machines are activated,
The suitability of the wiring leading up to this and the operation of these auxiliary machines will be checked. Further, this operation is also used for the purpose of venting air from the fuel supply path. Similarly, in response to input of inspection SW9d, starter 17f and air assist pump 17
Since the control outputs of g and bypass valve 17C are obtained and these auxiliary machines are operated, the suitability of the wiring leading to them and the operation of each auxiliary machine are checked. This operation is also used for cranking purposes in gas turbine engines.

As mentioned above, during inspection, the auxiliary equipment is divided into four groups so that each group does not start the gas turbine engine independently, and each group is functionalized.Also, in the event of an abnormality, the alarm output signal is sent to the output interface. The signal is output via the face 18, and an alarm is sounded by a bell or the like. When the setting y8 is set to an error display code, a corresponding abnormality display is displayed on the display unit 20 such as a lamp, printer, or CRT via the display interface l9.

For example, if SW8 is set to a display code for operating status parameters such as gas turbine engine rotational speed 19d, exhaust temperature 19e, month/day 19f, etc., the display of the corresponding item will be displayed via the display interface 19. Display section 2
You can also get it to 0.

Next, an embodiment of the operation control of the control device according to the present invention will be described based on a series of flowcharts shown in FIGS. 2 to 5.

Figure 2 is a flowchart when the gas turbine engine is started. When a start command is received in step S1, the gas turbine engine overspeeds, abnormally increases the exhaust temperature, abnormally increases the lubricating oil temperature, abnormality in the power supply of the control device, abnormality in the detection sensor, etc. Continuous monitoring of constant monitoring items is carried out throughout the entire period. Immediately when it is determined that this item is abnormal, the constant monitoring item abnormality process described below is performed and the operation is stopped. -1. Ambient temperature control using heaters and fans continues throughout the entire period. Next step S! The starter and ignition system start, and the fuel cutoff valve opens to start the engine. In step S3, it is determined whether or not the rotation speed has reached a predetermined rotation speed within a predetermined number of times of startup. If the startup does not occur, all startup abnormality processing described below is performed, and if the startup occurs, a predetermined exhaust temperature change is performed within a predetermined time in step S4. Ignition confirmation is performed to see if the temperature has risen to . When it is determined that there is no ignition, the process proceeds to restart as shown in FIG. 4, which will be described later. When ignition is confirmed, it is determined in step S5 whether or not the VC first set speed has been reached within a predetermined time. If the VC first set speed has not been reached, the process proceeds to restart K as described above, and if it has been reached, the starter and ignition are activated in step S6. Stop the equipment's auxiliary equipment. Next, in step S7, it is similarly determined whether the second set speed has been reached within a predetermined time, and if the second set speed has not been reached, the process moves to the above-mentioned restart, and if it has been reached, the power generation/stop as shown in Fig. 3 is performed. Proceed to control. Between steps S6 and S, the lubricating oil pressure is monitored, and when this falls below the set value, the restart is performed.

Next, FIG. 3 is a control flowchart for power generation/shutdown. The process proceeds from step S7 in FIG. Continuously monitors constantly monitored items and presence or absence of stop commands
While monitoring, load operation is continued as long as none of the voltage abnormalities such as overvoltage or undervoltage, oil EEL constant such as abnormal drop in lubricating oil pressure, constant monitoring item abnormality, or stop command apply.

Even if any of the above abnormalities or commands is determined or detected, the process is immediately processed and the operation is stopped.

Now, the flowchart of the restart control that is automatically performed when startup fails is as shown in Figure 4. First, at S:, predetermined information such as automatic mode, whether there is a power outage signal, or test mode is set. Confirm whether the conditions for allowing a restart have been met. Next, up to S:, step S at the time of startup described in FIG.
, -K progresses in the same way as the process of S4. If it is determined that there is no ignition in step S:, the process moves to the ignition abnormality process κ described later, and if ignition is confirmed, the first speed check is performed in G, and if the specified rotation speed has not been reached within a certain time. If so, proceed to the startup normal process (described later). If the predetermined rotational speed K is reached, proceed to step S.
: The auxiliary equipment is stopped in the same way as in step S6 in FIG. 2, and a second speed check is performed in step S;.

In this step, if the rotation speed further increases within a certain IRv and does not reach the predetermined value, the process moves to acceleration abnormality processing, and if it has reached the predetermined value, the power generation/stop control step S8 shown in FIG. , proceed to descend.

Note that in the same system, it is also possible to create a sequence in which the number of restarts ff is multiple.

The above-mentioned abnormality processing and stop processing are respectively processed in subroutines shown in FIG. In other words, constant monitoring items,
Oil field, acceleration, voltage, and ignition abnormality processing are shown in Fig. 5 (a), starting abnormality processing f! is shown in Figure 5 Φ), and the stop process is shown in Figure 5 (
In C), the controller abnormality processing is stopped or alarmed in FIG. 5(d), and the controller returns to the standby state after the alarm is restored. Further, the contents of the stoppage and communication in the subroutine shown in FIG. 5 are as illustrated in FIG. 6.

A configuration for achieving the third and fourth objects of the invention is illustrated in FIG. That is, in the control device of this invention using a microcomputer. Output interface Ace 17 to 1 connected to I/011 output boat 21K
The control terminal of the switching element 9'k structure 11ffi is grounded via a resistor 23. This allows CPt
Due to J's runaway and I/011 being destroyed, I/O Hort 21
Even in the disconnected state Ii3, the relay R does not operate and its contact rF'i is opened, so no output signal is generated and the auxiliary equipment of the starter and the ignition system 1[]1 is stopped. Furthermore, since an emergency stop switch 24 is provided on the power line at the final stage of the output section, all outputs can be shut off.

``Effects of the Invention'' With the above configuration, the present invention firstly starts, stops, restarts the gas turbine engine, takes into account external signals such as engine stoppage and the operating status of the gas turbine generator tL device, and controls the gas turbine engine when switching the load. Able to control the operation of the turbine generator properly on his/her own. In particular, if the state K in which self-sustaining operation is not possible is achieved after a single start-up, the restart is automatically performed, thereby doubling the reliability of the start-up. This point is especially effective in emergency power generation equipment.

As a second effect of the present invention, since a wide variety of constant monitoring can be performed, not only the damage and destruction of the equipment can be prevented, but also the safety aspect is significantly increased.

As a third effect of the present invention, the safety of the control is improved because a fail-safe measure is taken for the output interface of the control device.

The fourth advantage of the present invention is that, since a means for cutting off all outputs is provided, safety in an emergency is increased.

As a fifth effect of this invention, since inspection SWs are provided in blocks for the auxiliary equipment group whose operation alone does not lead to startup, the inspection switch between the control device and the auxiliary equipment can be connected without starting the gas turbine engine. It is easy to check whether the wiring is correct or not and the operation of auxiliary equipment. At the same time, operation preparations such as venting air from the key 1F supply channel and cranking, as well as operational rotation, can be performed. In other words, the maintenance, inspection, and operational performance of the equipment will be improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the bridge construction of the implementation ψ11 of this invention, FIGS. 2 to 5 are flowcharts of control in this invention, and FIG. 6 is a stop IF in each subroutine shown in FIG. and FIG. 7 is a diagram showing an example of a fail-safe circuit of the output section according to the present invention. 1+6: @ output means, 9: inspection switch, 1l: 1/0.
13: CPU, 14: ROM, 15: RAM, 17,1
8, 19: Output interface, 17a: Ignition device,
17b 2LQ, $+ shutoff valve, 17e: Fuel pump, 17
f: Su J-1, 2o: Display section, 22: Switch element, 2
3: Low resistance, 24: Emergency stop switch (output). -166- -167 - Specification (correction) 1. Title of the invention Automatic control device for gas turbine engine 2. Claims (1) Detecting means for detecting the operating state of the gas turbine engine, and a predetermined gas turbine engine. storage means for storing an operating sequence of the engine and operating conditions set corresponding to the sequence; comparison means for comparing and calculating the detection signal of the detection means with the operating condition stored in the storage means; control means for controlling the gas turbine engine according to the operation sequence based on the result; when the gas turbine engine is started up (if the operation sequence corresponding to the operation step is not satisfied by the comparison means); An automatic control device for a gas turbine engine, characterized in that when it is confirmed that the control means restarts the gas turbine engine. The automatic control device for a gas turbine engine according to claim 1, characterized in that the automatic control device for a gas turbine engine is made common to all sides, and a manual switch is inserted in series thereto. (3) Sequence control is performed by a microcomputer, and The automatic control device for a gas turbine engine according to claim 1, characterized in that each output port for control signals of various devices related to operation is grounded via a resistor. In the automatic control system for a gas turbine engine according to scope 1, a confirmation means that can independently confirm the operation of the star ignition device, the electromagnetic valve of the fuel supply path, and the fuel bong independently of the operation of the gas turbine engine. 3. Detailed Description of the Invention "Field of Industrial Application" The present invention relates to automatic operation of a gas turbine engine-driven power generation device, particularly an emergency power generation device thereof. Related to control devices. ``Prior art'' Conventionally, gas turbine engine-driven generators have been used as emergency power generators in response to situations such as power outages. In conventional devices, the rotation of the gas turbine engine Appropriate operational control cannot be performed for a wide variety of control items such as speed, exhaust temperature, and lubricating oil pressure.In particular, when startup fails, the only action taken is to stop the gas turbine engine, and subsequent actions are left to humans. This point is extremely unsatisfactory when used as an emergency power generator, and improvements in this point are desired. Furthermore, when monitoring the operating status of the gas turbine power generation system, only some of the items that require monitoring are performed, such as overspeed of the gas turbine engine, abnormal exhaust temperature, and abnormal drop in lubricating oil pressure, which is insufficient. It is. In addition, when controlling this type of automatic control device using a microcomputer, in the conventional type, when the /0 boat becomes high impedance, control signals that should not be output are output, and the gas turbine engine may have an adverse effect on driving. Furthermore, in conventional automatic control devices of this type, there are It was not possible to easily check the wiring, and it was also not possible to independently check whether each auxiliary machine was operating properly without starting the gas turbine engine. The increase in the number of control objects, monitoring items, and alarm display items has made wiring complicated and difficult to check, so it is desired to have a simple means for inspecting wiring. 1. Conventionally, there has been a need for a means to easily perform tests after installation of a gas turbine power generator, inspection after handling an abnormal situation, preparation for operation, and the like. ``Problems to be Solved by the Invention-1 This invention solves the various problems with the above-mentioned conventionally used control devices, and aims to solve the following problems. The first object of the invention is to detect signals in response to external signals supplied in the event of an abnormality in the electrical system such as a power outage, and detection signals corresponding to operating conditions such as the rotation speed, exhaust temperature, and lubricating oil pressure of the gas turbine engine. The objective is to automatically and comprehensively control the operation of the gas turbine power generation device, such as starting, stopping and restarting the gas turbine engine, and switching the load.In particular,
If the gas turbine engine does not reach a state capable of self-sustaining operation after one startup, the startup operation (hereinafter abbreviated as "restart") is automatically performed again. A second object of the present invention is to automatically and constantly monitor the operating state of a gas turbine power generator and issue necessary warnings for safety. A third object of the present invention is to prevent runaway of the central processing unit (hereinafter referred to as CPU) and input/output interface (hereinafter referred to as "CPU") in a control device (hereinafter referred to as "control device") for a gas turbine power generator using a microcomputer. , abbreviated as I/O)
This is to ensure safety in the event that appropriate control signals, etc. cannot be obtained due to destruction of the equipment. The purpose of the younger brother 4 of this invention is to make it possible to stop all operations of the gas turbine generator in case of an emergency. A fifth object of the present invention is to check whether the wiring between the control device and equipment related to the operation of the gas turbine engine, such as the starter, the solenoid valve of the ignition S+ station fuel supply path, and the fuel pump, is appropriate, or whether each supplementary The objective is to independently check whether the machines are operating properly or not without starting the gas turbine engine, and to perform operations such as cranoginog and air removal from the natural material supply path. "Structure of the Invention" In the present invention, a detection means is provided for detecting the tjh operating state of the gas turbine engine, and a detection means is provided that stores a predetermined operating sequence of the gas turbine engine and operating conditions set corresponding to the sequence. A storage means is provided for storing the information. The detection signal obtained by the detection means and the operating conditions stored in the storage means are compared and calculated by a comparison means provided separately. In this invention, a control means is provided for controlling the gas turbine engine according to a predetermined operation sequence based on the comparison result of the comparison means, and when the gas turbine engine is started, the comparison means determines the operating conditions corresponding to the operation step. If it is confirmed that the conditions are not satisfied, the gas turbine engine is restarted by the control means. The invention with this configuration is considered to be the basic invention of the present application. First, in contrast to this basic invention, a configuration is derived in which one side of the output circuit for control signals of various devices related to the operation of the gas turbine engine is made common, and a manual switch is inserted in series thereto. Next, in contrast to the basic invention, a configuration is derived in which sequence control is performed by a microcomputer, and control signals of various devices related to the operation of the gas turbine engine are grounded via individual output port resistors. Furthermore, in addition to the basic invention, there is a configuration having a confirmation means that can independently confirm the operation of the starter, the ignition device, the electromagnetic valve of the fuel supply path, and the fuel pump, independently of the operation of the gas turbine engine. be led out. With such a configuration, in the present invention, the gas turbine engine is automatically and appropriately started, stopped, restarted, etc., depending on the operating state of the gas turbine power generator. Furthermore, various items can be constantly monitored during operation, and complete safety measures can be realized. Furthermore, a phenol safety measure is taken at the output interface of the control device, improving control safety. Furthermore, with the present invention, safety in an emergency is increased, and the suitability of wiring and operation of the auxiliary equipment group can be easily inspected. "Example" The configuration of an automatic control device for a gas turbine power generator according to the present invention will be described below based on an example using FIG. m1. As shown in FIG. 1, the automatic control device for a gas turbine engine according to the present invention includes a seven-piece circuit 1 that detects parameters related to the operating state of the gas turbine engine, a detection circuit 2 that processes the signals, a multiplexer 3 (MPX), a sample Hold circuit 4 (S/H), A/D converter 5, detection unit 6 for detecting power outages and abnormalities in power generation status, etc., operation mode changeover switch (hereinafter abbreviated as changeover SW) 7, setting SW8, inspection SW9
Operating unit 10, I/011, bus 12, CPU 1, etc.
3, I'LOMl4, RAMl5, cloth 16, control, alarm and display output interfaces 17, 18,
and 19, and a display section 20. That is, the parameter signals related to the operating state of the gas turbine engine, such as the gas turbine engine rotational speed 1a and the exhaust temperature 1b, which are detected by the sensor 1 and processed by the detection circuit 2 to a signal level that can be post-processed, are sent to the multiplexer 3K.
After being sequentially captured and sent to the sample and hold circuit 4, it is converted into a digital signal by the A/D converter 5, and the I
/011 and stored in AMl4. Further, an abnormality in the power generation state such as a power outage 6a or power generation establishment 6b is detected by the detection unit 6 and is input to the AM15 via the I/Olo. By the way, the OM 14 stores a zologram that is responsible for the overall control of the operation, alarms, and displays of the gas turbine generator, and based on the zologram, the CI)L. J13 judges and controls each process. 1/1/01], inputs such as switch data, control outputs, etc. are controlled. Control output signals and the like from I/011 are applied to output interfaces 17 to 19 consisting of transistors, relays, etc., and output as control, alarm, and display outputs, respectively. That is, when sensor signals related to the operating state of the gas turbine engine and detection signals such as power outages and abnormalities in the power generation state are taken in, CI'UIII: Pre-stored operations, setting conditions, and clock signals from the clock 16 are detected. Comparative calculations are made based on the above, and judgments are made on whether to start, stop, restart, load switch, generate an alarm, etc. the gas turbine engine, and based on the judgment results, I/01]
Control signals and the like are output to the output interfaces 17 to 19 via the output interfaces 17 to 19. The display unit 2o performs display based on the control signal. On the other hand, the operation unit 10VC includes a mode switching SW 7 for setting operation modes such as manual, automatic, and test, and a digital S for setting operation sequence control time of the gas turbine engine.
W, settings S of digital SWs, etc. that set the display contents on the display section 2o that displays information regarding operations or alarms;
In addition to W8, alarm return SW10a for resetting the alarm, etc., an inspection SW9 is provided as means for achieving the fifth object of the present invention. That is, when the inspection SW 9a is input, the CPU 13, in response to this signal, takes out the action stored in advance in the RoM 14VC, that is, the action to activate the ignition device, and executes the procedure J,/01.
1. Since the control output of the ignition device J7a is obtained from the output interface 17 and is operated, the wiring leading to the ignition device and its operation check are performed. In the same way, input inspection SW91) and check the fuel cutoff valve]
．． 7b. Bypass-fpl7c, and entry valve 1
The control output of the electromagnetic valves of the fuel supply paths such as 7d is obtained, and since these auxiliary machines are operated, their distribution and operation checks are performed. Similarly, for the input of check sw9C,
Since the control force of the fuel pump 17e, the bus pass valve 17c, and the enrichment valve 17d is obtained and these auxiliary machines are operated, the wiring leading to them is checked and the operation of these auxiliary machines is checked. Furthermore, this operation is also used for the purpose of venting air from the fuel supply. Similarly, in response to the input of the inspection SW 9d, the motor 17
f, air assist pump 17g and neupass valve 17c
Control outputs are obtained, and since only one of these units is operated, the suitability of the wiring leading to these units and the operation of the auxiliary units are checked. It is used to control the cranking of gas turbine engines. As mentioned above, the inspection is divided into four groups of auxiliary equipment so that each group will not start the gas turbine engine independently, and each group is functionalized. In addition, in the event of an abnormality, the alarm output signal is output from Intern Ace 1.
8 will be dispatched and an alarm will be sounded with a bell etc. When the setting SW 3 is set to an error display code, a corresponding abnormality display is displayed on the display unit 20 of a lamp, printer, CRT, etc. via the display interface 19. Furthermore, when the setting SW 8 is set to a display code such as an operating state parameter such as the gas turbine engine rotational speed 19d, exhaust temperature 19e, month/day 19f, etc., the corresponding item is displayed on the display section 2 via the display interface 19.
You can also get it to 0. Next, an embodiment of the operation control of the control device according to the present invention will be described based on a series of flowcharts shown in FIGS. 2 to 5. Figure 2 is a flowchart when the gas turbine engine is started. When a start command is received in step S1, the gas turbine engine overspeeds, abnormally increases the exhaust temperature, abnormally increases the lubricating oil temperature, abnormality in the power supply of the control device, abnormality in the detection sensor, etc. Continuous monitoring of constant monitoring items is carried out throughout the entire period. Immediately when it is determined that there is an abnormality in this item, all of the abnormality processing for the constant monitoring items described below is carried out and the operation is stopped. Additionally, ambient temperature control using heaters and fans continues throughout the entire period. Next, the starter and ignition system are started in the steno pump S2, the fuel cutoff valve is opened, and starting is performed. In step S8, it is determined whether the rotation speed has reached a predetermined rotation speed within a predetermined number of times of starting, and if the starting is not started, the abnormal starting process described below is performed.
When started, ignition is confirmed in step S4 to determine whether the exhaust gas temperature has risen to a predetermined value within a predetermined time. When it is determined that there is no ignition, the process proceeds to restart (as shown in FIG. 4, which will be described later). When ignition is confirmed, it is determined in step S5 whether or not the first set speed has been reached within a predetermined time. , if the speed has not been reached, the process proceeds to restart as described above, and if the speed has been reached, the starter and the auxiliary equipment of the ignition system are stopped in step S6.Subsequently, in step S7, the second set speed is It is determined whether or not the target has been reached, and if the target has not been reached, the process moves to the above-mentioned restart, and if the target has been reached, the process proceeds to the power generation/stop control shown in Fig. 3. Between steps S6 and S, the lubricating oil pressure is monitored,
When this falls below the set value, the process shifts to the above-mentioned restart. Next, FIG. 3 is a control flowchart for power generation/shutdown. The process proceeds from step S7 in FIG. While continuously monitoring the constant monitoring items and the presence or absence of a stop command, as long as there are no voltage abnormalities such as overvoltage or undervoltage, oil pressure abnormalities such as an abnormal drop in lubricating oil pressure, constant monitoring item abnormalities, or stop commands, Continue load operation. Even if any of the above-mentioned abnormalities or commands is determined or detected, the processing immediately proceeds and the operation is stopped. Now, the flowchart of the restart control that is automatically performed when a startup fails is as shown in Figure 4. First, at SL', predetermined information such as whether there is an automatic mode, a power outage signal, or a test mode is determined. Check whether there are any conditions that allow restarting. Next, up to step 84', the process proceeds in the same manner as steps 81 to S4 at the time of startup described in FIG. Step 84'
If it is determined that there is no ignition, the process will proceed to the ignition abnormality processing described below.
Once ignition is confirmed, a first speed check is performed at 85'.
If the predetermined number of rotations has not been reached within a certain period of time, the process moves to abnormal startup processing, which will be described later. When the rotational speed is at a predetermined value, the auxiliary equipment is stopped at step 86' in the same way as in the case of step S6 in FIG. 2, and a second speed check is performed at step 87'. In this step, if the rotation speed further increases within a certain period of time and does not reach the predetermined value, the process moves to acceleration abnormality processing, and if it has reached the predetermined value, the process proceeds to power generation/stop control step S8 shown in FIG. 3. move on. Note that it is also possible to create a sequence that allows the same system to be restarted multiple times. The above-mentioned abnormality processing and stop processing are respectively processed using the routine shown in FIG. In other words, constant monitoring items,
Hydraulic pressure, acceleration, voltage, and ignition abnormality processing are shown in Figure 5 (a), startup abnormality processing is shown in Figure 5 (b), and stop processing is shown in Figure 5 (
C), the controller abnormality processing is stopped or alarmed in FIG. 5 (cl), and the controller returns to the standby state after the alarm returns. Also, the stop at the subroutine shown in 5'l:A,
The contents of the warning are as illustrated in FIG. In order to achieve the third and fourth objects of this invention,
In the control device of this invention using a microcomputer,
．． The control terminals of the switching elements constituting the output interfaces 17 to 19 connected to the output port 21 of the /011 are grounded via a resistor 23. As a result, even if the CPU goes out of control or I/011 is destroyed and the I/O port 21 is disconnected, the relay will not operate and its contact r will be opened, so no output signal will be generated. , starter, ignition system 7, and other auxiliary equipment. Furthermore, since an emergency stop SW 24 is provided on the power line at the final stage of the output section, all outputs can be cut off by this. ``Effects of the Invention'' With the above configuration, the present invention has the following advantages: First, the gas turbine engine starts, stops, and restarts the gas turbine engine in response to an external signal such as a power outage and the operating state of the gas turbine power generator, and the gas turbine generates a load switch. The operation of the power generation equipment can be controlled automatically and appropriately. In particular, if the system does not become capable of self-sustaining operation after a single startup, the system will automatically restart, doubling the reliability of startup. In this respect, Fi has an irresistible effect, especially in emergency power generators. As a second effect of the present invention, since a wide variety of constant monitoring can be performed, not only the damage and destruction of the equipment can be prevented, but also the safety aspect is significantly increased. As a third advantage of the present invention, since a fail-safe measure is taken for the output interface of the control device, control safety is improved. A fourth effect of the present invention is that safety in an emergency is increased because a means for cutting off all outputs is provided. As a fifth effect of this invention, since a block-type inspection SW is provided for the auxiliary equipment group whose operation alone does not lead to startup, the wiring between the control device and the auxiliary equipment can be changed without starting the gas turbine engine. Easily check compliance and complementary operations. At the same time, operation preparations such as venting air from the fuel supply path and cranking, as well as maintenance rotations, can be performed. In other words, equipment maintenance, inspection, and operational performance are further improved. As explained in detail above, according to the present invention, operation control such as starting, stopping, restarting, and load switching of the gas turbine engine is automatically performed under optimal conditions in response to external signals and the operating state of the gas turbine power generation device. Automatic control of gas turbine engines that is strictly controlled, constantly monitored during operation, guarantees safety in control emergencies, and also allows wiring of auxiliary equipment and inspection of operation. It becomes possible to provide the device. 4 Brief Description of the Drawings Fig. 1 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 2 to Fig. 5 is a flow chart of control in this invention, and Fig. 6 shows stoppages in each subroutine shown in Fig. 5. and FIG. 7 is a diagram showing an example of a fail-safe circuit of the output section in the present invention. 1, 6.Detection means, 9.Inspection switch, 11...I/
O, 13...CPU, 14...ROM, 15...I
L.A. M, 17, 18.19... Output interface, 17a/° ignition device, 17b... Fuel cutoff valve, 1
7e・Fuel pump, 17f...Starter, 20...
Display section, 22... switch element, 23 resistor, 24...
・Emergency stop switch (output).

Claims (4)

[Claims] (1) Means for detecting operating conditions such as gas turbine engine rotation speed, lubricating oil pressure, exhaust melting, etc., and predetermined
A storage means for storing an engine operation sequence and operating conditions set corresponding to the sequence, and a means for comparing and calculating an engine operating state detection signal with the set conditions, and the engine starts, runs, stops, etc. A gas that commands and executes according to a predetermined operation sequence, monitors the detected value of the operation state and its calculated value corresponding to the operation step, and performs safety measures such as restarting and issuing an alarm. Automatic control device for turbine engines. (2) Automatic control 4 for a gas turbine engine according to claim 1, characterized in that one side of the control signal output circuit is shared and a manual switch is inserted therein in series.
! neck. (3) The automatic control device for a gas turbine engine according to claim 1, which is constituted by a microcomputer, is characterized in that each output port of the control signal is grounded via a resistor. Automatic control device. (4) In the automatic control system fllK for a gas turbine engine according to claim 1, a starter, an ignition device,
1. An automatic control device for a gas turbine engine, characterized in that a means is provided for independently checking the operation of a solenoid valve in a combustion supply path, a fuel bong, etc., independently of engine operation.