CN110568777B - Digital control system and driving device and driving circuit thereof - Google Patents
Digital control system and driving device and driving circuit thereof Download PDFInfo
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- CN110568777B CN110568777B CN201910757448.0A CN201910757448A CN110568777B CN 110568777 B CN110568777 B CN 110568777B CN 201910757448 A CN201910757448 A CN 201910757448A CN 110568777 B CN110568777 B CN 110568777B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
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Abstract
The invention belongs to the technical field of drive control, and provides a digital control system, and drive equipment and a drive circuit thereof. In the invention, the driving circuit comprising the open instruction memory module, the working mode processing module, the power loss processing module, the equipment protection module, the standby equipment starting control module, the control signal processing module and the fault management module is adopted, so that all modules in the driving circuit work cooperatively to finally complete the starting and stopping control of the driving equipment, and in the starting and stopping control process of the driving equipment, various functional protection logics are designed in a standardized manner, the experience and the skill of designers are not required to be relied on, the intelligent degree is high, the fault alarm can be carried out, and the problems of poor design standardization and low intelligent degree of the existing digital control system of the nuclear power plant are solved.
Description
Technical Field
The invention belongs to the technical field of drive control, and particularly relates to a digital control system, and drive equipment and a drive circuit thereof.
Background
As a main control system of a domestic nuclear power plant, a digital control system of the domestic nuclear power plant is provided with various driving devices, such as motors, and as a main driving source in the digital control system of the nuclear power plant, control of the driving devices is particularly important in operation control of the nuclear power plant. At present, when a digital control system of an existing nuclear power plant performs logic design of a control function of a driving device, the operation control function requirement of the device is usually expressed only by basic modules such as an and gate, an or gate, a not gate and the like.
However, although the existing digital control system for a nuclear power plant can realize the logic control of the driving device, the design of the digital control system for a nuclear power plant has no standardized design for the logic control of priority management of control signals, starting of standby devices, device protection and the like in functional requirements, and the correctness of functional logic depends on the experience and skill of designers, so that the existing digital control system for a nuclear power plant has poor design standardization and low intelligence degree.
In conclusion, the existing digital control system of the nuclear power plant has the problems of poor design standardization and low intelligent degree.
Disclosure of Invention
The invention aims to provide a digital control system, a driving device and a driving circuit thereof, and aims to solve the problems of poor design standardization and low intelligent degree of the existing digital control system of a nuclear power plant.
The invention is realized in such a way that a driving circuit is used for carrying out logic control on driving equipment in a digital control system of a nuclear power plant, and the driving circuit comprises:
the opening instruction memory module is used for generating an opening memory instruction according to the received equipment opening instruction;
the working mode processing module is used for generating a working mode control signal according to the received user operation instruction and/or the forced mode signal;
the power-off processing module is used for generating a signal waiting for loading the diesel engine or a signal failing to start the diesel engine according to the received power-off signal and the diesel engine unloading signal;
the device protection module is connected with the power-loss processing module and the opening instruction memory module and used for generating a first protection signal and a second protection signal according to a received power-loss signal, a device protection signal, a locking and starting standby device request signal, the opening memory instruction, the waiting diesel engine loading signal and the diesel engine starting failure signal;
the standby equipment starting control module is connected with the equipment protection module, the opening instruction memory module, the power-loss processing module and the working mode processing module and is used for generating a standby equipment control signal according to a received first equipment protection stop signal, an electric switch panel fault signal, the opening memory instruction, the working mode control signal, the waiting diesel engine loading signal, the diesel engine starting failure signal, the locking starting standby equipment request signal, the second protection signal and a protection system opening control signal;
the control signal processing module is connected with the equipment protection module and the working mode processing module and is used for generating corresponding equipment start-stop signals according to the received diesel engine unloading signals, protection system control signals, the first protection signals, priority automatic control signals, non-priority automatic control signals, manual control signals, off command locking signals, on command locking signals and the working mode control signals so as to control the start and the close of the driving equipment;
and the fault management module is connected with the control signal processing module and the equipment protection module and used for generating corresponding fault alarm signals according to the received on-feedback input signals, off-feedback input signals, fault signals of the electrical switch panel, the power failure signals, the second protection signals and the equipment start-stop signals and then giving an alarm.
Another object of the present invention is to provide a driving apparatus including the driving circuit described above.
It is a further object of the present invention to provide a digital control system including the above-described drive apparatus.
In the invention, the driving circuit comprising the open instruction memory module, the working mode processing module, the power loss processing module, the equipment protection module, the standby equipment starting control module, the control signal processing module and the fault management module is adopted, so that all modules in the driving circuit work cooperatively to finally complete the starting and stopping control of the driving equipment, and in the starting and stopping control process of the driving equipment, various functional protection logics are designed in a standardized manner, the experience and the skill of designers are not required to be relied on, the intelligent degree is high, the fault alarm can be carried out, and the problems of poor design standardization and low intelligent degree of the existing digital control system of the nuclear power plant are solved.
Drawings
Fig. 1 is a schematic block diagram of a driving circuit according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a driving circuit according to another embodiment of the present invention;
fig. 3 is a schematic circuit structure diagram of an operation mode processing module in the driving circuit according to an embodiment of the present invention;
fig. 4 is a schematic circuit structure diagram of a power-off processing module in the driving circuit according to an embodiment of the present invention;
fig. 5 is a schematic circuit structure diagram of a device protection module in the driving circuit according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a standby device start control module in the driving circuit according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a circuit structure of a block control disable module in a driving circuit according to an embodiment of the present invention;
fig. 8 is a schematic circuit structure diagram of a control signal processing module in the driving circuit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of implementations of the invention refers to the accompanying drawings in which:
fig. 1 shows a module structure of a driving circuit 10 according to an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment are shown, and detailed descriptions are as follows:
as shown in fig. 1, the driving circuit 10 of the present invention is used for logically controlling a driving device 20 in a digital control system of a nuclear power plant, wherein the driving device 20 can be a motor. Wherein, drive circuit 10 includes:
an open instruction memory module 101, configured to generate an open memory instruction Meon (not shown in the drawings, please refer to fig. 5) according to the received device open instruction;
a working mode processing module 102, configured to generate a working mode control signal AMod (not shown in the figure, please refer to fig. 3) according to the received user operation instruction and/or the forced mode signal;
a power loss processing module 103, configured to generate a waiting diesel engine loading signal a (not shown in the figure, please refer to fig. 4) or a diesel engine startup failure signal b (not shown in the figure, please refer to fig. 4) according to the received power loss signal PwLos and the diesel engine unloading signal LS;
the device protection module 104 is connected to the power loss processing module 103 and the on command memory module 101, and configured to generate a first protection signal ComPPOFF (not shown in the drawings, see fig. 5) and a second protection signal PPm-SbRq (not shown in the drawings, see fig. 5) according to the received power loss signal PwLos (not shown in the drawings, see fig. 5), the device protection signal, the lock start standby device request signal LckSbRq (not shown in the drawings, see fig. 5), the on memory command Meon, the waiting diesel engine loading signal a, and the diesel engine start failure signal b;
a standby device start control module 105, connected to the device protection module 104, the on command memory module 101, the power loss processing module 103, and the working mode processing module 102, and configured to generate a standby device control signal PPm-SbRq (not shown in the figures, see fig. 6) according to the received first device protection stop signal PPOFFs (not shown in the figures, see fig. 6), the electrical switch panel Fault signal SWGR-Fault (not shown in the figures, see fig. 6), the on memory command Meon, the working mode control signal AMod, the waiting diesel engine loading signal a, the diesel engine start failure signal b, the lock start standby device request signal LckSbRq (not shown in the figures, see fig. 6), the second protection signal PPm-SbRq, and the protection system on control signal PSON (not shown in the figures, see fig. 6);
a control signal processing module 106, connected to the device protection module 104 and the working mode processing module 102, for generating a corresponding device start/stop signal according to a received diesel engine unloading signal LS (not shown in the figure, please refer to fig. 7), a protection system control signal, a first protection signal ComPPOFF, a priority automatic control signal, a non-priority automatic control signal, a manual control signal, a close command blocking signal LckOFF (not shown in the figure, please refer to fig. 6), an open command blocking signal LckON (not shown in the figure, please refer to fig. 6), and a working mode control signal AMod, so as to control the start and the close of the driving device;
and the Fault management module 107 is connected to the control signal processing module 106 and the equipment protection module 104, and configured to generate and alarm a corresponding Fault alarm signal according to the received on-feedback input signal FbON (not shown in the figure), off-feedback input signal FbOFF (not shown in the figure), electrical switchboard Fault signal SWGR-Fault, power-off signal PwLos, second protection signal PPm-SbRq, and equipment start-stop signal, where the alarm mode includes, but is not limited to, text, picture, audio, and the like.
In this embodiment, a driving circuit including an open instruction memory module 101, a working mode processing module 102, a power loss processing module 103, an equipment protection module 104, a standby equipment start control module 105, a control signal processing module 106, and a fault management module 107 is adopted, so that the modules in the driving circuit cooperatively work to finally complete start and stop control of the driving equipment, and in the start and stop control process of the driving equipment, various function protection logics are designed in a standardized manner without depending on experience and skills of designers, so that the intelligent degree is high, fault alarm can be performed, and the problems of poor design standardization and low intelligent degree of the existing digital control system of the nuclear power plant are solved.
Further, as an embodiment of the present invention, as shown in fig. 2, the driving circuit 10 further includes a group control unavailable module 108. The group control unavailable module 108 is connected to the power loss processing module 103 and the equipment protection module 104, and is configured to generate a group control unavailable signal GCU (not shown in the drawings, see fig. 7) according to the received diesel engine start failure signal b, the first protection signal ComPPOFF (not shown in the drawings, see fig. 7) and the electrical switchboard Fault signal SWGR-Fault (not shown in the drawings, see fig. 7), so that the corresponding component is started or stopped correspondingly under the action of the group control unavailable signal GCU.
In this embodiment, the group control unavailable module 108 is arranged in the driving circuit 10, so that the group control unavailable module 108 can generate a group control unavailable signal GCU according to a corresponding signal received by itself, and further, the devices participating in group control can be started and stopped correspondingly under the condition of a failure or power loss of the driving device, and multiple devices in the assembly can be controlled through the group control unavailable signal GCU without individually controlling each device, thereby improving the safety control efficiency while ensuring that the devices in the assembly are not damaged.
Further, as an embodiment of the present invention, as shown in fig. 3, the forced mode signal includes a forced manual mode signal fMMod and a forced automatic mode signal fAMod, and the user operation instruction includes an automatic operation instruction LEVEL2AUTO and a manual operation instruction LEVEL2 MANAUL; the operation mode processing module 102 includes a first and gate a1, a second and gate a2, a third and gate A3, a first or gate B1, a second or gate B2, a third or gate B3, and a first flip-flop RS 1.
Wherein a first input of first and gate a1 receives the negated signal of the force manual mode signal fMMod, a second input of first and gate a1 receives the force automatic mode signal fMMod, a first input of first or gate B1 receives the force manual mode signal fMMod, a second input of first or gate B1 is connected to the output of first and gate a1, a first input of second and gate a2 and a first input of third and gate A3 both receive the negated signal of the signal output by first or gate B1, a second input of second and gate a2 receives the automatic operation command LEVEL2AUTO, a second input of third and gate A3 receives the manual operation command LEVEL2MANAUL, a first input of second or gate B2 is connected to the output of first and gate a1, a second input of second or gate B36 is connected to the output of second and gate a2, a third and gate B3 receives the force manual mode signal fMMod, a second input of third and gate B3 is connected to the second input of third and gate a 3638, a first input terminal of the first flip-flop RS1 is connected to an output terminal of the second or gate B2, a second input terminal of the first flip-flop RS1 is connected to an output terminal of the third or gate B3, and an output terminal of the first flip-flop RS1 outputs the operation mode control signal AMod.
In operation, as shown in fig. 3, the priority of the force mode signal is higher than the priority of the user operation command, i.e., the priority of the force manual mode signal fMMod and the force automatic mode signal fAMod is higher than the priority of the automatic operation command LEVEL2AUTO and the manual operation command LEVEL2 MANAUL. When the force manual mode signal fMMod is active and the force automatic mode signal fMMod is inactive, even if the automatic operation command LEVEL2AUTO is active, the working mode processing module 102102 outputs a manual control signal after passing through the circuit logic of fig. 3, that is, the working mode control signal AMod is a low LEVEL signal; when the forced automatic mode signal fAMod is asserted and the forced manual mode signal fMMod is deasserted, even though the manual operation command LEVEL2MANAUL is asserted, the operating mode processing module 102 outputs the automatic control signal after passing through the circuit logic of fig. 3, that is, the operating mode control signal AMod is at a high LEVEL.
Further, when the manual mode forcing signal fMMod and the automatic mode forcing signal fAMod are both invalid, and when the user operation command is the automatic operation command LEVEL2AUTO, that is, the automatic operation command LEVEL2AUTO is valid, after passing through the circuit logic of fig. 3, the working mode processing module 102 will also output an automatic control signal, that is, the working mode control signal AMod at this time is at a high LEVEL; when the user operation command is the manual operation command LEVEL2MANAUL, that is, the manual operation command LEVEL2MANAUL is valid, after passing through the circuit logic of fig. 3, the operating mode processing module 102 also outputs the manual control signal, that is, the operating mode control signal AMod at this time is at a low LEVEL.
It should be noted that, in this embodiment, the signal valid means that the signal is at a high level, and the signal invalid means that the signal is at a low level, but it can be understood by those skilled in the art that, in other embodiments, the signal valid may also be characterized by a low-level signal, and the signal invalid may be characterized by a high-level signal.
In this embodiment, the working mode processing module 102 of the present invention controls the working mode of the driving device according to the mandatory mode signal and the user operation instruction signal, so that the driving device can work in both the automatic mode and the manual mode, thereby enriching the working modes of the driving device.
Further, as an embodiment of the present invention, as shown in fig. 4, the power loss processing module 103 includes a first delay unit T1, a fourth and gate a4, a fourth or gate B4, and a fifth and gate a 5.
The input end of the first delay unit T1, the first input end of the fourth and-gate a4, and the first input end of the fifth and-gate a5 both receive the power-loss signal PwLos, the second input end of the fourth and-gate a4 is connected to the output end of the first delay unit T1, the first input end of the fourth or-gate B4 is connected to the output end of the fourth and-gate a4, the second input end of the fourth or-gate B4 receives the diesel engine unloading signal LS, the output end of the fourth or-gate B4 outputs the diesel engine start failure signal B, the second end of the fifth and-gate a5 receives the non-signal of the diesel engine start failure signal B, and the output end of the fifth and-gate a5 outputs the waiting diesel engine loading signal a.
In specific operation, as shown in fig. 4, when the power-off signal PwLos is received and the power supply of the diesel engine is started, the power-off signal PwLos is delayed, and the delay time is preferably the starting time of the power supply of the diesel engine. After the power-off signal PwLos is delayed, in the delay time, after the power-off signal PwLos and the diesel unloading signal LS pass through the circuit shown in fig. 4, if the output is a waiting diesel loading signal a, a closing command in the starting process of the diesel is locked, so that the tripping of a switch plate can not occur due to short-time power failure of the driving equipment; if the output is the diesel engine start failure signal b, the driving device is stopped, and the standby driving device is controlled to be started.
In this embodiment, the power loss processing module 103 in the present invention generates the diesel engine start failure signal b and the waiting diesel engine loading signal a according to the power loss signal PwLos and the diesel engine unloading signal LS, so that power can be supplied to the driving device through the diesel engine in the case of power loss, and even if the diesel engine cannot supply power to the driving device, the driving device can be immediately stopped and the standby driving device can be started at the same time, thereby protecting the failed driving device and realizing the standby function, thereby ensuring the normal operation of the nuclear power plant control system.
Further, as an embodiment of the present invention, as shown in fig. 5, the plant protection signals include a first plant protection stop signal PPOFFs, a second plant protection stop signal PPOFF, a third plant protection stop signal PPOFFc, a fourth plant protection stop signal PPOFFcm, and a fifth plant protection stop signal PPOFFcms; the device protection module 104 includes a fifth or gate B5, a sixth or gate B6, a seventh or gate B7, a sixth and gate a6, a seventh and gate a7, an eighth and gate A8, a ninth and gate a9, a tenth and gate a10, a second flip-flop RS2, a third flip-flop RS3, a fourth flip-flop RS4, a fifth flip-flop RS5, and a second delay unit T2.
Wherein a first input terminal of the fifth or gate B5 receives the latch-up standby device request signal LckSbRq, a second input terminal of the fifth or gate B5 receives the waiting diesel engine loading signal a, an input terminal of the second delay unit T2 and a first input terminal of the ninth and gate a9 both receive the open memory command Meon, a second input terminal of the ninth and gate a9 receives the diesel engine start failure signal B, a first input terminal of the sixth and gate A6 receives the fifth device protection stop signal PPOFFcms, a second input terminal of the sixth and gate A6 receives a non-signal of the signal output by the output terminal of the fifth or gate B5, a third input terminal of the sixth and gate A6 is connected to the output terminal of the second delay unit T2, a first input terminal of the seventh and gate A7 receives the fourth device protection stop signal PPOFFcm, a second input terminal of the seventh and gate A7 receives a non-signal of the signal output by the output terminal of the fifth or gate B5, a seventh and gate A7 is connected to the output terminal of the second delay unit 2, a first input terminal of the eighth and-gate A8 receives the third device protection stop signal PPOFFc, a second input terminal of the eighth and-gate A8 receives a non-signal of the signal output by the output terminal of the fifth or-gate B5, a third input terminal of the eighth and-gate A8 is connected to the output terminal of the second delay unit T2, a first input terminal of the second flip-flop RS2 is connected to the output terminal of the sixth and-gate a6, a first input terminal of the third flip-flop RS3 is connected to the output terminal of the seventh and-gate a7, a first input terminal of the fourth flip-flop RS4 is connected to the output terminal of the eighth and-gate A8, a second input terminal of the second flip-flop RS2 and a second input terminal of the third flip-flop RS3 both receive the reset signal, a second input terminal of the fourth flip-flop RS4 receives a non-signal of the third device protection stop signal PPOFFc, a first input terminal of the fifth flip-flop RS5 is connected to the output terminal of the ninth a9, and-gate a5 receives the non-signal pwrs 5, an output terminal of the second flip-flop RS2 outputs the second protection signal PPm-SbRq and is connected to a first input terminal of a sixth or gate B6, an output terminal of the third flip-flop RS3 is connected to a second input terminal of the sixth or gate B6, a first input terminal of a tenth and gate a10 receives a non-signal of the protection system on control signal PSON, a second input terminal of a tenth and gate a10 is connected to an output terminal of a sixth or gate B6, and input terminals of a seventh or gate B7 receive the first device protection stop signal PPOFFs and the second device protection stop signal PPOFF and are connected to an output terminal of the fifth flip-flop RS5, an output terminal of the fourth flip-flop RS4, and an output terminal of the tenth and gate a 10.
In specific operation, the device protection signals shown in the embodiments of the present invention have different attributes, where a letter c in the device protection signal indicates that the device protection signal has a device start-up latch-up protection function, a letter m in the device protection signal indicates that the device protection signal has a protection signal memory function, and a letter s in the device protection signal indicates that a standby device needs to be started up when the device protection signal has protection.
Further, when the device protection module 104 receives the device protection signal, the lock start standby device request signal LckSbRq, the power loss signal PwLos, the open memory command Meon, and the feedback signal of the power loss processing module 103, the corresponding first protection signal ComPPOFF and the second protection signal PPm-SbRq may be generated according to the circuit in fig. 5; wherein, the first protection signal ComPPOFF is the comprehensive protection signal of the device, and the second protection signal PPm-SbRq is the device protection signal with memory for starting the standby device.
In addition, the plant protection module 104 further receives a reset signal and a protection system on control signal PSON, where the reset signal is used to reset the plant, and the protection system on control signal PSON is a protection on command generated by the reactor system, that is, when the protection system on control signal PSON is valid, the first protection signal ComPPOFF cannot control the driving plant to stop running even though it is valid, and when the protection system on control signal PSON is invalid, the validity and the non-validity of the first protection signal ComPPOFF become a basis for controlling the driving plant to start and stop.
It should be noted that, in this embodiment, fig. 5 illustrates a circuit of the device protection module 104 by taking the case that the device protection module 104 receives a plurality of device protection signals as an example, and the plurality of device protection signals received by the device protection module 104 may be valid at the same time or may not be valid at the same time.
In this embodiment, the device protection module 104 in the present invention generates a comprehensive device protection signal according to various signals received by itself, so that the device protection signal becomes a judgment and basis for controlling the driving device, and further the protection of the driving device can be realized.
Further, as an embodiment of the present invention, as shown in fig. 6, the standby device activation control module 105 includes an eighth or gate B8, a ninth or gate B9, a tenth or gate B10, an eleventh and gate a11, a twelfth and gate a12, a thirteenth and gate a13, a third delay unit T3, and a fourth delay unit T4.
A first input end of the eighth or gate B8 receives the first equipment protection stop signal PPOFFs, a second input end of the eighth or gate B8 receives the electrical switch panel Fault signal SWGR-Fault, and a third input end of the eighth or gate B8 receives the diesel engine start failure signal B; a first input terminal of the third delay unit T3 and an input terminal of the fourth delay unit T4 each receive the open memory command Meon, a first input terminal of the ninth or gate B9 receives the latch-up standby request signal LckSbRq, a second input terminal of the ninth or gate B9 receives the waiting diesel engine loading signal a, a first input terminal of the eleventh and gate a11 is connected to an output terminal of the eighth or gate B8, a second input terminal of the eleventh and gate a11 is connected to an output terminal of the fourth delay unit T4, a third input terminal of the eleventh and gate a11 receives the operation mode control signal AMod, a first input terminal of the twelfth and gate a12 receives the operation mode control signal AMod, a second input terminal of the twelfth and gate a12 is connected to an output terminal of the third delay unit T3, a third input terminal of the twelfth and gate a12 receives a non-signal of the signal output from the ninth or gate B9, a fourth input terminal of the twelfth a12 receives the second PPm-SbRq protection signal, a first input terminal of the tenth or gate B10 is connected to an output terminal of the eleventh and gate a11, a second input terminal of the tenth or gate B10 is connected to an output terminal of the twelfth and gate a12, a first input terminal of the thirteenth and gate a13 is connected to an output terminal of the tenth or gate B10, a second input terminal of the thirteenth and gate a13 receives a non-signal of the protection system on control signal PSON, and an output terminal of the thirteenth and gate a13 outputs the backup device control signal SbRq.
In specific operation, as shown in fig. 6, when receiving the first device protection stop signal PPOFFs, the electrical switchboard Fault signal SWGR-Fault, the start memory command Meon, the operating mode control signal AMod, the wait diesel engine load signal a, the diesel engine start failure signal b, the lock start standby device request signal LckSbRq, the second protection signal PPm-SbRq, and the protection system start control signal PSON, the standby device start control module 105 generates the corresponding standby device control signal SbRq according to the received first device protection stop signal PPOFFs, the electrical switchboard Fault signal SWGR-Fault, the start memory command Meon, the operating mode control signal AMod, the wait diesel engine load signal a, the diesel engine start failure signal b, the lock start standby device request signal LckSbRq, the second protection signal PPm-SbRq, and the protection system start control signal PSON under the circuit logic shown in fig. 6, and when the standby device control signal SbRq is valid, the standby drive device is started, and when the standby device control signal SbRq is invalid, the standby drive device is prohibited from being started, so that the standby function of the device is realized.
Further, as an embodiment of the present invention, as shown in fig. 7, the group control unavailable module 108 includes an eleventh or gate B11, a first input terminal of the eleventh or gate B11 receives the electrical switchboard Fault signal SWGR-Fault, a second input terminal of the eleventh or gate B11 receives the diesel engine start failure signal B, and a third input terminal of the eleventh or gate B11 receives the first protection signal ComPPOFF.
In specific operation, as shown in fig. 7, when receiving the diesel engine start failure signal b, the first protection signal ComPPOFF and the electrical switchboard Fault signal SWGR-Fault, the group control module generates a corresponding group control unavailable signal GCU according to the diesel engine start failure signal b, the first protection signal ComPPOFF and the electrical switchboard Fault signal SWGR-Fault under the action of the circuit logic shown in fig. 7, and performs the component unavailable control on the components in the devices participating in the group control when the group control unavailable signal GCU is valid.
Further, as an embodiment of the present invention, as shown in fig. 8, the control signal processing module 106 includes a first processing unit 106a, a second processing unit 106b, and an output processing unit 106 c.
The input end of the first processing unit 106a receives a diesel engine unloading signal LS, a protection system control signal, a priority automatic control signal, a non-priority automatic control signal, a manual control signal, an off command blocking signal LckOFF, an on command blocking signal LckON and an operating mode control signal AMod, the output end of the first processing unit 106a is connected with the input end of the second processing unit 106b, the input end of the second processing unit 106b receives the diesel engine unloading signal LS, the first protection signal ComPPOFF and the protection system control signal, the output end of the second processing unit 106b is connected with the input end of the output processing unit 106c, and the output end of the output processing unit 106c outputs a device start-stop signal.
Specifically, the first processing unit 106a generates a first processing result according to the diesel engine unloading signal LS, the protection system control signal, the priority automatic control signal, the non-priority automatic control signal, the manual control signal, the off command blocking signal LckOFF, the on command blocking signal LckON, and the operating mode control signal AMod; the second processing unit 106b generates a second processing result according to the first processing result, the diesel unloading signal LS, the first protection signal ComPPOFF, and the protection system control signal, and the output processing unit 106c generates a device start/stop signal according to the second processing result.
Further, as an embodiment of the present invention, as shown in fig. 8, the protection system control signal includes a protection system control OFF signal PSOFF and a protection system control on signal PSON, the priority automatic control signal includes a priority automatic OFF signal PAOFF and a priority automatic on signal PAON, the non-priority automatic control signal includes a non-priority automatic OFF signal AOFF and a non-priority automatic on signal AON, and the manual control signal includes a manual on control signal LEVEL2ON and a manual OFF control signal LEVEL2 OFF; the first processing unit 106a includes a twelfth or gate B12, a thirteenth or gate B13, a fourteenth or gate B14, a fourteenth and gate a14, a fifteenth and gate a15, a sixteenth and gate a16, a seventeenth and gate a17, an eighteenth and gate a18, and a nineteenth and gate a19, and the second processing unit 106B includes a fifteenth or gate B15, a sixteenth or gate B16, a twentieth and gate a20, a twenty-first and gate a21, a twenty-second and gate a22, a twenty-third and gate a23, a twenty-fourth and gate a24, and a twenty-fifth and gate a 25.
Wherein a first input terminal of the twelfth or gate B12 receives the diesel unloading signal LS, a second input terminal of the twelfth or gate B12 receives the protection system control OFF signal PSOFF, a first input terminal of the fourteenth and gate a14 receives the priority automatic OFF signal PAOFF, a first input terminal of the fifteenth and gate a15 receives the non-priority automatic OFF signal AOFF, a first input terminal of the sixteenth and gate a16 receives the manual OFF control signal LEVEL2OFF, a second input terminal of the fourteenth and gate a14 and a second input terminal of the fifteenth and gate a15 as well as a second input terminal of the sixteenth and gate a16 both receive the non-signal of the OFF command lockout signal lckfoff, a third input terminal of the fifteenth and gate a15 receives the operation mode control signal AMod, a third input terminal of the sixteenth and gate a16 receives the non-signal of the operation mode control signal amood, a first input terminal of the seventeenth and gate a17 receives the priority automatic on signal PAON, a first input terminal of the eighteenth and gate a18 receives the non-priority automatic on signal AON, a first input terminal of a nineteenth and gate a19 receives the manual open control signal LEVEL2ON, a second input terminal of a seventeenth and gate a17 and a second input terminal of an eighteenth and gate a18 and a second input terminal of a nineteenth and gate a19 each receive the non-signal of the open command blocking signal LckON, a third input terminal of an eighteenth and gate a18 receives the operation mode control signal AMod, a third input terminal of a nineteenth and gate a19 receives the non-signal of the operation mode control signal AMod, a first input terminal of a thirteenth or gate B13 is connected to an output terminal of a fifteenth and gate a15, a second input terminal of a thirteenth or gate B13 is connected to an output terminal of a sixteenth and gate a16, a first input terminal of a fourteenth or gate B14 is connected to an output terminal of the eighteenth and gate a18, a second input terminal of a fourteenth or gate B14 is connected to an output terminal of a nineteenth and gate a19, a first input terminal of a twenty a20 receives the first protection signal comff, a twenty-gate a20 receives the non-ppon control signal PSON, a first input terminal of the twenty-first and gate a21 is connected to an output terminal of the fourteenth and gate a14, a second input terminal of the twenty-first and gate a21 receives a non-signal of the protection system control on signal PSON, a first input terminal of the twenty-second and gate a22 is connected to an output terminal of the thirteenth or gate B13, a second input terminal of the twenty-second and gate a22 receives a non-signal of the signal output from the seventeenth and gate a17, a third input terminal of the twenty-second and gate a22 receives a non-signal of the protection system control on signal PSON, a first input terminal of the twenty-third and gate a23 receives a non-signal of the diesel unload signal LS, a second input terminal of the twenty-third and gate receives the protection system control on signal PSON, a first input terminal of the twenty-fourth and gate a24 and a25 both receive a non-signal of the signal output from the twelfth or gate B12, a second input terminal of the twenty-fourth and gate a24 and a25 both receive a non-signal ppoff of the protection signal comf, a third input terminal of a twenty-fourth and gate a24 is connected to an output terminal of a seventeenth and gate a17, a third input terminal of a twenty-fifth and gate a25 receives a non-signal of the signal output from the fourteenth and gate a14, a fourth input terminal of a twenty-fifth and gate a25 is connected to an output terminal of a fourteenth or gate B14, a first input terminal of a fifteenth or gate B15 is connected to an output terminal of a twelfth or gate B12, a second input terminal of a fifteenth or gate B15 is connected to an output terminal of a twentieth and gate a20, a third input terminal of a fifteenth or gate B15 is connected to an output terminal of a twenty-first and gate a21, a fourth input terminal of a fifteenth or gate B15 is connected to an output terminal of a twenty-second and gate a22, a first input terminal of a sixteenth or gate B16 is connected to an output terminal of a twenty-third and gate a23, a second input terminal of a sixteenth or gate B16 is connected to an output terminal of a twenty-fourth and gate a24, a sixteenth and gate B16 is connected to an output terminal of a25, the first input end of the output processing unit 106c is connected with the output end of the fifteenth or gate B15, the second input end of the output processing unit 106c is connected with the output end of the sixteenth or gate B16, and the output processing unit 106c outputs a device start/stop signal.
In specific operation, as shown in fig. 8, the first processing result refers to a logic result generated by the first processing unit 106a under the circuit logic of 106a shown in fig. 8 according to the diesel engine unloading signal LS, the protection system control signal, the priority automatic control signal, the non-priority automatic control signal, the manual control signal, the protection system control signal, the off command blocking signal LckOFF, the on command blocking signal LckON, and the operating mode control signal AMod, and the second processing result refers to a logic result generated by the second processing unit 106b under the circuit logic of 106b shown in fig. 8 according to the first processing result, the diesel engine unloading signal LS, the first protection signal ComPPOFF, and the protection system control signal; in addition, the device start-stop signal includes a device start signal ON-CMD for starting the driving device and a device stop signal OFF-CMD for prohibiting the driving device from starting.
Further, the control signal processing module 106 shown in fig. 8 has a priority management function, and the priorities of the diesel engine unloading signal LS, the protection system control signal, the priority automatic control signal, the non-priority automatic control signal/manual control signal received by it sequentially go from high to low, and the diesel engine unloading signal LS, the protection system control signal, the priority automatic control signal, the non-priority automatic control signal/manual control signal are control signals, and the off-command blocking signal LckOFF and the on-command blocking signal LckON and the operation mode control signal AMod are permission signals. That is to say, the control signal processing module 106 mainly controls the driving device to start or stop correspondingly according to the priorities of the diesel unloading signal LS, the protection system control signal, the priority automatic control signal, the non-priority automatic control signal/the manual control signal, and the working mode control signal AMod allows the driving device to work in a selected mode, for example, when the working mode control signal AMod is at a high level, the non-priority automatic control signal takes effect; if the operation mode control signal AMod is at a low level, the manual control signal is asserted.
In addition, when the on command blocking signal LckON is at a high level, the on command in the manual control signal, the on command in the priority automatic control command, and the on command in the non-priority automatic control command cannot be issued, that is, the manual control on signal, the priority automatic on signal PAON, and the non-priority automatic on signal AON are not allowed to participate in the control of the driving device; when the on command blocking signal LckON is at a low level, the on command in the manual control signal, the on command in the priority automatic control command, and the on command in the non-priority automatic control command may be issued, that is, the manual control on signal, the priority automatic on signal PAON, and the non-priority automatic on signal AON are allowed to participate in the control of the driving apparatus.
In addition, when the off command lockout signal LckOFF is at a high level, the off command in the manual control signal, the off command in the priority automatic control command, and the off command in the non-priority automatic control command cannot be issued, that is, the manual control off signal, the priority automatic off signal PAOFF, and the non-priority automatic off signal AOFF are not allowed to participate in the control of the driving apparatus; when the off command lockout signal LckOFF is at a low level, the off command in the manual control signal, the off command in the priority automatic control command, and the off command in the non-priority automatic control command may be issued, i.e., the manual control off signal, the priority automatic off signal PAOFF, and the non-priority automatic off signal AOFF are allowed to participate in the control of the drive apparatus.
In this embodiment, the control signal processing module 106 of the present invention implements priority management according to the interlocking relationship and the priority level between the received signals, so that one of the on and off commands can be set to be preferentially output when the on and off commands exist simultaneously, thereby preventing the control logic from generating errors to cause control errors of the driving device while implementing effective control of the driving device.
It should be noted that, in the present invention, the signal active means that the signal is at a high level, and the signal inactive means that the signal is at a low level, but it can be understood by those skilled in the art that, in other embodiments, the signal active may also be characterized by a low level signal, and the signal inactive may be characterized by a high level signal.
In summary, the driving circuit 10 provided in the embodiment of the present invention has a multi-type control signal optimization function, a fault alarm function, a power failure handling function, an equipment protection function, a function of starting standby equipment, and the like, so that the driving circuit 10 can be applied to various application situations, such as motor drive control in the situations of medium and low voltage equipment, different safety levels, whether emergency power supply is provided, whether standby equipment is provided, and the like; in addition, the driving circuit 10 shown in the present invention may be integrally packaged, or each module may be separately packaged in a split manner, so that each module in the driving circuit 10 may be used after being split during application, and the driving circuit may be used to control the design of a control logic diagram in a nuclear battery digital control system and the development of application software of a downstream nuclear power plant digital control system supplier, and by matching with a process function logic design, the automation level of a nuclear power plant may be integrally improved.
Further, the invention also provides a driving device, which comprises a driving circuit. It should be noted that, since the driving circuit 10 in the driving device provided in the embodiment of the present invention is the same as the driving circuit 10 shown in fig. 1 to 8, the specific operating principle of the driving circuit 10 in the driving device provided in the embodiment of the present invention may refer to the foregoing detailed description about fig. 1 to 8, and is not repeated here.
In addition, the invention also provides a digital control system which comprises the driving device. It should be noted that, since the driving circuit 10 in the digital control system provided in the embodiment of the present invention is the same as the driving circuit 10 shown in fig. 1 to 8, the specific working principle of the driving circuit 10 in the digital control system provided in the embodiment of the present invention can refer to the foregoing detailed description about fig. 1 to 8, and is not repeated herein.
In the invention, a driving circuit comprising an open instruction memory module 101, a working mode processing module 102, a power loss processing module 103, an equipment protection module 104, a standby equipment starting control module 105, a control signal processing module 106 and a fault management module 107 is adopted, so that all modules in the driving circuit work cooperatively to finally complete the starting and stopping control of the driving equipment, and in the starting and stopping control process of the driving equipment, various function protection logics are designed in a standardized manner without depending on the experience and skill of designers, the intelligent degree is high, the fault alarm can be carried out, and the problems of poor design standardization and low intelligent degree of the existing digital control system of the nuclear power plant are solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. A drive circuit for logically controlling a drive device in a digital control system of a nuclear power plant, the drive circuit comprising:
the opening instruction memory module is used for generating an opening memory instruction according to the received equipment opening instruction;
the working mode processing module is used for generating a working mode control signal according to the received user operation instruction and/or the forced mode signal;
the power-off processing module is used for generating a signal waiting for loading the diesel engine or a signal failing to start the diesel engine according to the received power-off signal and the diesel engine unloading signal;
the device protection module is connected with the power-loss processing module and the opening instruction memory module and used for generating a first protection signal and a second protection signal according to a received power-loss signal, a device protection signal, a locking and starting standby device request signal, the opening memory instruction, the waiting diesel engine loading signal and the diesel engine starting failure signal;
the standby equipment starting control module is connected with the equipment protection module, the opening instruction memory module, the power-loss processing module and the working mode processing module and is used for generating a standby equipment control signal according to a received first equipment protection stop signal, an electric switch panel fault signal, the opening memory instruction, the working mode control signal, the waiting diesel engine loading signal, the diesel engine starting failure signal, the locking starting standby equipment request signal, the second protection signal and a protection system opening control signal;
the control signal processing module is connected with the equipment protection module and the working mode processing module and is used for generating corresponding equipment start-stop signals according to the received diesel engine unloading signals, protection system control signals, the first protection signals, priority automatic control signals, non-priority automatic control signals, manual control signals, off command locking signals, on command locking signals and the working mode control signals so as to control the start and the close of the driving equipment;
and the fault management module is connected with the control signal processing module and the equipment protection module and used for generating corresponding fault alarm signals according to the received on-feedback input signals, off-feedback input signals, fault signals of the electrical switch panel, the power failure signals, the second protection signals and the equipment start-stop signals and then giving an alarm.
2. The driving circuit according to claim 1, further comprising a group control unavailable module, connected to the power loss processing module and the equipment protection module, for generating a group control unavailable signal according to the received diesel engine start failure signal, the first protection signal and the electrical switchboard failure signal, so that the corresponding component is started and stopped correspondingly under the action of the group control unavailable signal.
3. The drive circuit according to claim 1 or 2, wherein the forced mode signal includes a forced manual mode signal and a forced automatic mode signal, and the user operation instruction includes an automatic operation instruction and a manual operation instruction; the working mode processing module comprises a first AND gate, a second AND gate, a third AND gate, a first OR gate, a second OR gate, a third OR gate and a first trigger;
the first input end of the first AND gate receives a non-signal of the forced manual mode signal, the second input end of the first AND gate receives the forced automatic mode signal, the first input end of the first OR gate receives the forced manual mode signal, the second input end of the first OR gate is connected with the output end of the first AND gate, the first input end of the second AND gate and the first input end of the third AND gate both receive a non-signal of the signal output by the first OR gate, the second input end of the second AND gate receives the automatic operation instruction, the second input end of the third AND gate receives the manual operation instruction, the first input end of the second OR gate is connected with the output end of the first AND gate, the second input end of the second OR gate is connected with the output end of the second AND gate, and the first input end of the third OR gate receives the forced manual mode signal, the second input end of the third or gate is connected with the output end of the third and gate, the first input end of the first trigger is connected with the output end of the second or gate, the second input end of the first trigger is connected with the output end of the third or gate, and the output end of the first trigger outputs the working mode control signal.
4. The driving circuit according to claim 1 or 2, wherein the power-loss processing module comprises a first delay unit, a fourth and gate, a fourth or gate and a fifth and gate;
the input end of the first delay unit, the first input end of the fourth AND gate and the first input end of the fifth AND gate receive the power-off signal, the second input end of the fourth AND gate is connected with the output end of the first delay unit, the first input end of the fourth OR gate is connected with the output end of the fourth AND gate, the second input end of the fourth OR gate receives the diesel engine unloading signal, the output end of the fourth OR gate outputs the diesel engine start failure signal, the second end of the fifth AND gate receives the non-signal of the diesel engine start failure signal, and the output end of the fifth AND gate outputs the waiting diesel engine loading signal.
5. The driving circuit according to claim 1 or 2, wherein the device protection signal comprises a first device protection stop signal, a second device protection stop signal, a third device protection stop signal, a fourth device protection stop signal, and a fifth device protection stop signal; the device protection module comprises a fifth OR gate, a sixth OR gate, a seventh OR gate, a sixth AND gate, a seventh AND gate, an eighth AND gate, a ninth AND gate, a tenth AND gate, a second trigger, a third trigger, a fourth trigger, a fifth trigger and a second delay unit;
a first input end of the fifth or gate receives the request signal of the standby locking and starting device, a second input end of the fifth or gate receives the signal waiting for loading the diesel engine, an input end of the second delay unit and a first input end of the ninth and gate both receive the opening memory command, a second input end of the ninth and gate receives the failure signal of starting the diesel engine, a first input end of the sixth and gate receives the protection stop signal of the fifth device, a second input end of the sixth and gate receives a non-signal of the signal output by the output end of the fifth or gate, a third input end of the sixth and gate is connected with an output end of the second delay unit, a first input end of the seventh and gate receives the protection stop signal of the fourth device, and a second input end of the seventh and gate receives a non-signal of the signal output by the output end of the fifth or gate, a third input end of the seventh and-gate is connected with an output end of the second delay unit, a first input end of the eighth and-gate receives the third device protection stop signal, a second input end of the eighth and-gate receives a non-signal of the signal output by the output end of the fifth or-gate, a third input end of the eighth and-gate is connected with an output end of the second delay unit, a first input end of the second trigger is connected with an output end of the sixth and-gate, a first input end of the third trigger is connected with an output end of the seventh and-gate, a first input end of the fourth trigger is connected with an output end of the eighth and-gate, a second input end of the second trigger and a second input end of the third trigger both receive the reset signal, and a second input end of the fourth trigger receives the non-signal of the third device protection stop signal, the first input end of the fifth trigger is connected with the output end of the ninth and-gate, the second input end of the fifth trigger receives a non-signal of the power-off signal, the output end of the second trigger outputs a second protection signal and is connected with the first input end of the sixth or-gate, the output end of the third trigger is connected with the second input end of the sixth or-gate, the first input end of the tenth and-gate receives a non-signal of the protection system on-control signal, the second input end of the tenth and-gate is connected with the output end of the sixth or-gate, the input end of the seventh or-gate receives the first equipment protection stop signal and the second equipment protection stop signal and is connected with the output end of the fifth trigger, the output end of the fourth trigger and the output end of the tenth and-gate.
6. The driving circuit according to claim 1 or 2, wherein the standby device start-up control module comprises an eighth or gate, a ninth or gate, a tenth or gate, an eleventh and gate, a twelfth and gate, a thirteenth and gate, a third delay unit and a fourth delay unit;
a first input end of the eighth or gate receives the first equipment protection stop signal, a second input end of the eighth or gate receives the electric switch panel fault signal, and a third input end of the eighth or gate receives the diesel engine start failure signal; the first input end of the third delay unit and the input end of the fourth delay unit both receive the opening memory instruction, the first input end of the ninth or-gate receives the request signal of the locking and starting standby device, the second input end of the ninth or-gate receives the signal of waiting for loading the diesel engine, the first input end of the eleventh and-gate is connected with the output end of the eighth or-gate, the second input end of the eleventh and-gate is connected with the output end of the fourth delay unit, the third input end of the eleventh and-gate receives the working mode control signal, the first input end of the twelfth and-gate receives the working mode control signal, the second input end of the twelfth and-gate is connected with the output end of the third delay unit, and the third input end of the twelfth and-gate receives the non-signal of the signal output by the ninth or-gate, a fourth input end of the twelfth AND gate receives the second protection signal, a first input end of the tenth OR gate is connected with an output end of the eleventh AND gate, a second input end of the tenth OR gate is connected with an output end of the twelfth AND gate, a first input end of the thirteenth AND gate is connected with an output end of the tenth OR gate, a second input end of the thirteenth AND gate receives a non-signal of the protection system on control signal, and an output end of the thirteenth AND gate outputs the standby device control signal.
7. The drive circuit of claim 2, wherein the bank control disable module comprises an eleventh OR gate having a first input receiving the electrical switchboard fault signal, a second input receiving the diesel start failure signal, and a third input receiving the first protection signal.
8. The drive circuit according to claim 1 or 2, wherein the control signal processing module includes a first processing unit, a second processing unit, and an output processing unit;
the input end of the first processing unit receives the diesel engine unloading signal, the protection system control signal, the priority automatic control signal, the non-priority automatic control signal, the manual control signal, the off command locking signal, the on command locking signal and the working mode control signal, the output end of the first processing unit is connected with the input end of the second processing unit, the input end of the second processing unit receives the diesel engine unloading signal, the first protection signal and the protection system control signal, the output end of the second processing unit is connected with the input end of the output processing unit, and the output end of the output processing unit outputs the equipment start-stop signal;
the first processing unit generates a first processing result according to the diesel engine unloading signal, the protection system control signal, the priority automatic control signal, the non-priority automatic control signal, the manual control signal, the off command blocking signal, the on command blocking signal and the working mode control signal; the second processing unit generates a second processing result according to the first processing result, the diesel engine unloading signal, the first protection signal and the protection system control signal, and the output processing unit generates the equipment start-stop signal according to the second processing result.
9. The driving circuit according to claim 8, wherein the protection system control signal comprises a protection system control off signal and a protection system control on signal, the priority automatic control signal comprises a priority automatic off signal and a priority automatic on signal, the non-priority automatic control signal comprises a non-priority automatic off signal and a non-priority automatic on signal, and the manual control signal comprises a manual on control signal and a manual off control signal; the first processing unit comprises a twelfth OR gate, a thirteenth OR gate, a fourteenth AND gate, a fifteenth AND gate, a sixteenth AND gate, a seventeenth AND gate, an eighteenth AND gate and a nineteenth AND gate, and the second processing unit comprises a fifteenth OR gate, a sixteenth OR gate, a twentieth AND gate, a twenty-first AND gate, a twenty-second AND gate, a twenty-third AND gate, a twenty-fourth AND gate and a twenty-fifth AND gate;
the first input end of the twelfth or gate receives the diesel unloading signal, the second input end of the twelfth or gate receives the protection system control off signal, the first input end of the fourteenth and gate receives the priority automatic off signal, the first input end of the fifteenth and gate receives the non-priority automatic off signal, the first input end of the sixteenth and gate receives the manual off control signal, the second input ends of the fourteenth and gate, the second input end of the fifteenth and gate and the second input end of the sixteenth and gate receive the non-signal of the off command blocking signal, the third input end of the fifteenth and gate receives the working mode control signal, the third input end of the sixteenth and gate receives the non-signal of the working mode control signal, and the first input end of the seventeenth and gate receives the priority automatic on signal, the first input end of the eighteenth AND gate receives the non-priority automatic on signal, the first input end of the nineteenth AND gate receives the manual on control signal, the second input ends of the seventeenth AND gate and the eighteenth AND gate and the nineteenth AND gate receive the non-signal of the on command blocking signal, the eighteenth and gate third input ends receive the working mode control signal, the third input end of the nineteenth AND gate receives the non-signal of the working mode control signal, the first input end of the thirteenth OR gate is connected with the output end of the fifteenth AND gate, the second input end of the thirteenth OR gate is connected with the output end of the sixteenth AND gate, the first input end of the fourteenth OR gate is connected with the output end of the eighteenth AND gate, and the second input end of the fourteenth OR gate is connected with the output end of the nineteenth AND gate, the first input end of the twentieth AND gate receives the first protection signal, the second input end of the twentieth AND gate receives a non-signal of the protection system control ON signal, the first input end of the twenty-first AND gate is connected with the output end of the fourteenth AND gate, the second input end of the twenty-first AND gate receives a non-signal of the protection system control ON signal, the first input end of the twenty-second AND gate is connected with the output end of the thirteenth OR gate, the second input end of the twenty-second AND gate receives a non-signal of the signal output by the seventeenth AND gate, the third input end of the twenty-second AND gate receives a non-signal of the protection system control ON signal, the first input end of the twenty-third AND gate receives a non-signal of the diesel engine unloading signal, and the second input end of the twenty-third AND gate receives the protection system control ON signal, a first input end of the twenty-fourth and gate and a first input end of the twenty-fifth and gate both receive a non-signal of a signal output by the twelfth or gate, a second input end of the twenty-fourth and gate and a second input end of the twenty-fifth and gate both receive a non-signal of the first protection signal, a third input end of the twenty-fourth and gate is connected with an output end of the seventeenth and gate, a third input end of the twenty-fifth and gate receives a non-signal of a signal output by the fourteenth and gate, a fourth input end of the twenty-fifth and gate is connected with an output end of the fourteenth or gate, a first input end of the fifteenth or gate is connected with an output end of the twelfth or gate, a second input end of the fifteenth or gate is connected with an output end of the twentieth and gate, and a third input end of the fifteenth or gate is connected with an output end of the twenty-first and gate, a fourth input end of the fifteenth or gate is connected with an output end of the twenty-second or gate, a first input end of the sixteenth or gate is connected with an output end of the twenty-third or gate, a second input end of the sixteenth or gate is connected with an output end of the twenty-fourth or gate, a third input end of the sixteenth or gate is connected with an output end of the twenty-fifth or gate, a first input end of the output processing unit is connected with an output end of the fifteenth or gate, a second input end of the output processing unit is connected with an output end of the sixteenth or gate, and the output processing unit outputs the device start-stop signal.
10. A driving device characterized in that it comprises a driving circuit according to any one of claims 1 to 9.
11. A digital control system, characterized in that it comprises a drive device according to claim 10.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4957690A (en) * | 1988-12-07 | 1990-09-18 | General Electric Company | System and method for monitoring and control of safety-related components of a nuclear power plant |
| CN101783194A (en) * | 2009-12-15 | 2010-07-21 | 中广核工程有限公司 | Control device of electrically operated valve of nuclear power station and control method |
| US8156251B1 (en) * | 2008-02-06 | 2012-04-10 | Westinghouse Electric Company Llc | Advanced logic system |
| CN107299894A (en) * | 2017-08-10 | 2017-10-27 | 中石化宁波工程有限公司 | The many stand-by pump self-starting logic control circuits selected based on priority |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101992299B1 (en) * | 2017-05-15 | 2019-06-25 | 두산중공업 주식회사 | Nuclear power plant digital protection system |
-
2019
- 2019-08-13 CN CN201910757448.0A patent/CN110568777B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4957690A (en) * | 1988-12-07 | 1990-09-18 | General Electric Company | System and method for monitoring and control of safety-related components of a nuclear power plant |
| US8156251B1 (en) * | 2008-02-06 | 2012-04-10 | Westinghouse Electric Company Llc | Advanced logic system |
| CN101783194A (en) * | 2009-12-15 | 2010-07-21 | 中广核工程有限公司 | Control device of electrically operated valve of nuclear power station and control method |
| CN107299894A (en) * | 2017-08-10 | 2017-10-27 | 中石化宁波工程有限公司 | The many stand-by pump self-starting logic control circuits selected based on priority |
Non-Patent Citations (1)
| Title |
|---|
| 台山EPR核电厂成组控制研究;詹林钰等;《核科学与工程》;20111231;第31卷;第118-123页 * |
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