CN104485142A - Diversified driving method, diversified driving device and diversified driving system for nuclear power station - Google Patents
Diversified driving method, diversified driving device and diversified driving system for nuclear power station Download PDFInfo
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- CN104485142A CN104485142A CN201410742281.8A CN201410742281A CN104485142A CN 104485142 A CN104485142 A CN 104485142A CN 201410742281 A CN201410742281 A CN 201410742281A CN 104485142 A CN104485142 A CN 104485142A
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- 238000000034 method Methods 0.000 title claims abstract description 133
- 230000008569 process Effects 0.000 claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000002955 isolation Methods 0.000 claims abstract description 25
- 239000002826 coolant Substances 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims description 16
- 230000006872 improvement Effects 0.000 description 19
- 230000009471 action Effects 0.000 description 12
- 230000007123 defense Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/04—Safety arrangements
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/08—Regulation of any parameters in the plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The invention discloses a diversified driving method for a nuclear power station. The method comprises the following steps: acquiring parameter information of each process in operation of the nuclear power station; comparing the parameter information of each process with a preset corresponding set value; outputting a signal for driving the execution of automatic functions if more than one but not all of the process parameter information exceeds the corresponding set value, wherein the automatic functions include an automatic tripping function of a steam turbine, an automatic start function of an auxiliary water supply electric pump, an automatic start function of a steam driven pump, a main steam automatic isolation function, a main water supply automatic isolation function and an automatic pump shutdown function of a reactor coolant pump. Besides, the invention also discloses a diversified driving device and a diversified driving system for the nuclear power station.
Description
Technical Field
The invention belongs to the technical field of nuclear power, and particularly relates to a diversity driving method, device and system for a nuclear power station.
Background
The earliest adoption of the nuclear power plant safety level instrument and control system was simulation technology, and the simulation system common cause fault is usually not assumed due to the characteristics of simulation equipment, measures (such as equipment identification, periodic tests and the like) taken in system design for preventing certain types of common cause faults and years of operation experience of the simulation technology. With the development of Digital technology, Distributed/Digital Control Systems (DCS) systems have been gradually applied to the control field of nuclear power plants. Digital devices have become a trend to replace analog protection systems due to their many advantages over analog devices, such as self-diagnostics, reliability, availability, and ease of installation and maintenance. However, if improperly designed and used, digital protection systems are more susceptible to common cause failures than analog systems for the following reasons: firstly, redundant channels of a digital protection system may share a database (software) and process equipment, so that hardware design errors, software design errors or software programming errors may cause common-mode or common-cause failures of the redundant equipment; secondly, the concentration of functions may cause common cause failure. If the system function set is completed by one processor, the failure of the processor may cause the system function to be lost, thereby causing common cause failure at the system level; if one processor in the channel function set completes, the failure of the processor may result in the loss of all functions of the channel to form a channel common cause failure; third, software sharing may create common cause failures. If the channels adopt the same software, the software fault or defect can form a common cause fault of a system level; fourthly, it is difficult to perform quantitative analysis on the reliability of the software.
The main measures typically taken to defend against common cause failures include: function dispersion, quality improvement, real-time monitoring, diversity and the like. At present, all countries pay particular attention to the realization of deep defense against common mode faults by means of diversified measures in design and evaluation. For example, for safety functions with diverse requirements, the conventional diversified measures of the CPR1000 project lack systematicness, and a large number of relay circuits are adopted to realize logic functions. (1) Adopting simulation equipment different from a protection system and a shutdown means to realize an ATWS (advanced transient without scope) protection function when the shutdown is not performed; (2) the PAMS I variable is displayed by adopting a conventional indicating instrument and an indicating lamp, and the digital protection system is bypassed as far as possible; (3) the manual emergency shutdown instruction is directly hard-wired to an excitation and voltage loss coil of a shutdown circuit breaker, and a system-level manual driving instruction is directly hard-wired to the bottom end of a digital protection system after being expanded by a relay; (4) the backup disc is provided with a part of safety level equipment hard hand operation and is directly connected to the bottommost end of the protection system as far as possible. However, the existing diversified measures are manual intervention, the operation requirement on an operator is very high, meanwhile, the logic of a large number of safety level relays is inconvenient to maintain, the interface of a protection system is complicated, and the large number of safety level instruments and hard-hand operation increase the scale of a backup panel.
Disclosure of Invention
The invention aims to: in the treatment of the unconventional operation condition of the nuclear power station, a convenient and efficient diversified measure treatment technology is provided.
In order to achieve the above object, the present invention provides a diversity driving method for a nuclear power plant, the method including:
acquiring parameter information of each process in the operation of the nuclear power station;
comparing the parameter information of each process with a preset corresponding setting value;
and if more than one and not all process parameter information exceeds corresponding setting values, outputting a signal for driving and executing an automatic function, wherein the automatic function comprises an automatic tripping function of a steam turbine, an automatic starting function of an auxiliary water supply electric pump, an automatic starting function of a steam-driven pump, an automatic main steam isolation function, an automatic main water supply isolation function and an automatic reactor coolant pump tripping function.
As an improvement of the diversity driving method for the nuclear power plant of the present invention, the acquiring information of each process parameter during operation of the nuclear power plant further includes:
and receiving equipment state information and/or process parameter information of each equipment in the operation of the nuclear power station.
As an improvement of the diversity driving method of the nuclear power plant of the present invention, the method further comprises:
and sending alarm information according to the signal for driving the execution of the automatic function.
As an improvement of the diversity driving method of the nuclear power plant of the present invention, the method further comprises:
and if all the process parameter information exceeds the corresponding setting values, outputting a reactor shutdown driving signal and/or a special safety facility driving signal.
As an improvement of the diversity driving method of the nuclear power plant of the present invention, the method further comprises:
and if all the process parameter information does not exceed the corresponding setting value, outputting the equipment state information and/or the process parameter information.
As an improvement of the diversity driving method of the nuclear power plant of the present invention, the method further comprises:
and sending the signal for driving the execution of the automatic function to a security level execution module through a hardware unit of the priority level processing module.
In order to achieve the above object, the present invention further provides a driving apparatus for nuclear power plant diversity, comprising:
the acquisition unit is used for acquiring parameter information of each process in the operation of the nuclear power station;
the comparison unit is used for comparing the acquired parameter information of each process with a preset corresponding setting value;
and the output unit is used for outputting a signal for driving and executing an automatic function if more than one and not all process parameter information exceeds corresponding setting values, wherein the automatic function comprises an automatic tripping function of a steam turbine, an automatic starting function of an auxiliary water supply electric pump, an automatic starting function of a steam-driven pump, an automatic main steam isolation function, an automatic main water supply isolation function and an automatic reactor coolant pump tripping function.
As an improvement of the diversity driving apparatus of the nuclear power plant of the present invention, the obtaining unit is further configured to:
and receiving equipment state information and/or process parameter information of each equipment in the operation of the nuclear power station.
As an improvement of the diversity driving apparatus of the nuclear power plant of the present invention, the apparatus further comprises:
and the diversified man-machine interface disc is used for sending alarm information according to the signal of the drive execution automatic function.
As an improvement of the diversity driving apparatus of the nuclear power plant of the present invention, the output unit is further configured to:
and if all the process parameter information exceeds the corresponding setting values, outputting a reactor shutdown driving signal and/or a special safety facility driving signal.
As an improvement of the diversity driving apparatus of the nuclear power plant of the present invention, the output unit is further configured to:
and if all the process parameter information does not exceed the corresponding setting value, outputting the equipment state information and/or the process parameter information.
As an improvement of the diversity driving apparatus of the nuclear power plant of the present invention, the output unit is further configured to:
and sending the signal for driving the execution of the automatic function to a security level execution module through a hardware unit of the priority level processing module.
In order to achieve the above object, the present invention further provides a driving system for nuclear power plant diversity, comprising:
the system comprises a diversity driving device, a control device and a control device, wherein the diversity driving device is used for comparing each acquired process parameter information in the operation of the nuclear power station with a preset corresponding setting value, and outputting a signal for driving to execute an automatic function if more than one and not all process parameter information exceed the corresponding setting value, and the automatic function comprises a turbine automatic trip function, an auxiliary water supply electric pump automatic starting function, a steam driven pump automatic starting function, a main steam automatic isolating function, a main water supply automatic isolating function and a reactor coolant pump automatic pump tripping function;
and the executing device is used for executing corresponding automatic function operation according to the signal for driving the automatic function execution.
As an improvement of the diversified driving system of the nuclear power plant, the diversified driving device is further used for:
and receiving equipment state information and/or process parameter information of each equipment in the operation of the nuclear power station.
As an improvement of the diversified driving system of the nuclear power plant, the diversified driving device is further used for:
and sending alarm information according to the signal for driving the execution of the automatic function.
As an improvement of the diversified driving system of the nuclear power plant, the diversified driving device is further used for:
and if all the process parameter information exceeds the corresponding setting values, outputting a reactor shutdown driving signal and/or a special safety facility driving signal.
As an improvement of the diversified driving system of the nuclear power plant, the diversified driving device is further used for:
and if all the process parameter information does not exceed the corresponding setting value, outputting the equipment state information and/or the process parameter information.
As an improvement of the diversified driving system of the nuclear power plant, the diversified driving device is further used for:
and sending the signal for driving the execution of the automatic function to a security level execution module through a hardware unit of the priority level processing module.
As an improvement of the diversified driving system of the nuclear power plant of the present invention, the system further comprises:
and the priority processing module is used for sending the signal for driving the execution of the automatic function to the execution device according to a preset priority processing mode.
As an improvement of the diversified driving system of the nuclear power plant of the present invention, the system further comprises:
and the digital protection device is used for acquiring parameter information of each process in the operation of the nuclear power station.
As an improvement of the diversified driving system of the nuclear power plant, the digital protection device is further used for:
and transmitting the collected parameter information of each process in the operation of the nuclear power station to the diversity driving device in a conventional distribution and hard wiring mode.
Compared with the prior art, the diversity driving method and the diversity driving system for the nuclear power station have the following beneficial technical effects: the acquired process parameter information of the nuclear power station in operation is compared with the preset corresponding setting value, if more than one and not all process parameter information exceeds the corresponding setting value, a signal for driving the execution of an automatic function is output, the automatic driving function is realized in the diversified measures of the nuclear power station, manual driving is not required to be completely relied on, and important measures are provided for the depth defense of the nuclear power station. Meanwhile, due to the fact that the automatic driving function is achieved, a large number of safety relay logic devices do not need to be installed, maintenance amount is greatly reduced, and protection of system interfaces is achieved. In addition, due to the fact that hard wiring is used for connection, the common cause fault problem brought by a software system is reduced. The implementation method is simple and easy to implement, and good technical effects are achieved.
Drawings
The following describes in detail the diversity driving method, device and system of a nuclear power plant according to the present invention with reference to the accompanying drawings and the detailed description, wherein:
FIG. 1 provides a flow chart of an example of a nuclear power plant diversity driving method of the present invention.
Fig. 2 provides a schematic diagram of an example of the driving device for nuclear power plant diversity according to the present invention.
FIG. 3 provides a schematic diagram of an example of a nuclear power plant diversity drive system of the present invention.
FIG. 4 provides a schematic diagram of yet another example of a nuclear power plant diversity drive system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantageous technical effects of the present invention clearer, the present invention is described in further detail below with reference to the accompanying drawings and the detailed description. It should be emphasized that the specific embodiments described in this specification are merely illustrative of the invention and are not intended to limit the scope of use of the invention.
Referring to fig. 1 in combination, fig. 1 provides a diversity driving method for a nuclear power plant.
Step 101, acquiring parameter information of each process in the operation of the nuclear power station.
Specifically, a sensor in the digital protection system of the nuclear power station acquires various process parameter information in the operation of the nuclear power station, and the process parameter information is hard-wired to the diversity drive system through a conventional distribution and isolation module in the digital protection system before entering a digitization unit of the protection system. Therefore, the software common cause fault of the digital protection system cannot influence the automatic function of the diversity drive system and the parameter indication on the diversity human interface Disk (DHP) in the diversity system.
Optionally, the equipment state information and/or the process parameter information of each equipment in the operation of the nuclear power plant are received.
And 103, comparing the information of each process parameter with a preset corresponding setting value.
And the nuclear power station diversity driving system compares the parameter information of each process with a preset corresponding setting value. Specifically, after being distributed in an isolated manner, the process parameter information shared by the diversified driving system and the protection system of the nuclear power plant is sent to the diversified driving redundant subsystem through a hard wire, and each subsystem respectively compares the process parameter information with the set corresponding setting value. Wherein the diversity drive redundancy subsystem comprises: the system comprises a steam turbine tripping redundant subsystem, an auxiliary water supply electric pump starting redundant subsystem, a steam-driven pump starting redundant subsystem, a main steam isolation redundant subsystem, a main water supply isolation redundant subsystem and a reactor coolant pump tripping redundant subsystem.
Further, the setting value of the diversity driver is designed to delay the automatic action of the protection system. The delayed minimum time requirement is that the protection action triggered by the digital protection system is completed and the state feedback signal of the related execution cabinet can be driven and used by diversity to lock the automatic action. For the setting value to ensure the required automatic action through the setting value design, the automatic action is delayed to delay the response time of the automatic action.
And 105, if more than one and not all process parameter information exceeds corresponding setting values, outputting a signal for driving to execute an automatic function, wherein the automatic function comprises an automatic tripping function of a steam turbine, an automatic starting function of an auxiliary water supply electric pump, an automatic starting function of a steam-driven pump, an automatic main steam isolation function, an automatic main water supply isolation function and an automatic reactor coolant pump tripping function.
Optionally, if all the process parameter information exceeds the corresponding setting value, a reactor shutdown driving signal and/or a special safety facility driving signal is/are output.
Optionally, if all the process parameter information does not exceed the corresponding setting value, the equipment state information and/or the process parameter information is output.
Further, the signal for driving the execution of the automatic function is sent to the security level execution module through the hardware unit of the priority level processing module.
Further, the diversified human interface panel DHP sends alarm information according to the signal of the drive execution automatic function.
The conventional indicator table on the DHP is used to monitor the critical safety function parameters. The instruction lists are diversified and independent of the digital protection system, and are not affected by common cause faults of digital protection system software.
According to the embodiment of the invention, each acquired process parameter information in the operation of the nuclear power station is compared with the corresponding preset setting value, and if more than one and not all process parameter information exceeds the corresponding setting value, a signal for driving the execution of an automatic function is output, so that the automatic driving function is realized in diversified measures of the nuclear power station, manual driving is not required to be completely relied on, and important measures are provided for the deep defense of the nuclear power station. Meanwhile, due to the fact that the automatic driving function is achieved, a large number of safety relay logic devices do not need to be installed, maintenance amount is greatly reduced, and protection of system interfaces is achieved.
Referring to fig. 2 in combination, fig. 2 provides a schematic diagram of an embodiment of a nuclear power plant diversity driver. The device includes: an acquisition unit 201, a comparison unit 203, and an output unit 205. In particular, the method comprises the following steps of,
an obtaining unit 201, configured to obtain parameter information of each process in operation of a nuclear power plant;
optionally, the obtaining unit 201 is further configured to receive equipment state information and/or process parameter information of each equipment in the operation of the nuclear power plant.
Specifically, a sensor in the digital protection system of the nuclear power plant acquires various process parameter information during operation of the nuclear power plant, and the process parameter information is hard-wired to the diversity drive device acquisition unit 201 through a conventional distribution and isolation module in the digital protection system before entering a digitization unit of the digital protection system.
A comparing unit 203, configured to compare the obtained parameter information of each process with a preset corresponding setting value;
the output unit 205 is configured to output a signal for driving to execute an automatic function if more than one and not all pieces of process parameter information exceed corresponding setting values, where the automatic function includes a turbine automatic trip function, an auxiliary water supply electric pump automatic start function, a steam driven pump automatic start function, a main steam automatic isolation function, a main water supply automatic isolation function, and a reactor coolant pump automatic trip function.
If all the process parameter information exceeds the corresponding setting value, the output unit 205 outputs a reactor shutdown driving signal and/or a special safety facility driving signal.
If all the process parameter information does not exceed the corresponding setting value, the output unit 205 outputs the equipment state information and/or the process parameter information.
Further, the output unit 205 transmits the signal for driving the execution of the automatic function to the security level execution module through the hardware unit of the priority level processing module.
Optionally, the apparatus further includes a diversity human interface panel DHP, configured to send an alarm message according to the signal that the driver executes the automatic function.
According to the embodiment of the invention, each acquired process parameter information in the operation of the nuclear power station is compared with the corresponding preset setting value, and if more than one and not all process parameter information exceeds the corresponding setting value, a signal for driving the execution of an automatic function is output, so that the automatic driving function is realized in diversified measures of the nuclear power station, manual driving is not required to be completely relied on, and important measures are provided for the deep defense of the nuclear power station.
Referring to FIG. 3 in combination, FIG. 3 provides a schematic diagram of one embodiment of a nuclear power plant diversity drive system. The method comprises the following steps: a diversity driver 301 and an actuator 303. Wherein,
the diversity driving device 301 is configured to compare the acquired process parameter information of each process in the operation of the nuclear power plant with a preset corresponding setting value, and output a signal for driving to execute an automatic function if more than one and not all of the process parameter information exceeds the corresponding setting value, where the automatic function includes a turbine automatic trip function, an auxiliary water supply electric pump automatic start function, a steam driven pump automatic start function, a main steam automatic isolation function, a main water supply automatic isolation function, and a reactor coolant pump automatic trip function.
Further, the diversity driving apparatus 301 is further configured to receive equipment state information and/or process parameter information of each equipment in operation of the nuclear power plant.
Further, the diversity driver 301 is further configured to send an alarm message according to the signal for driving the automatic function.
Optionally, if all the process parameter information exceeds the corresponding setting value, the diversity driving apparatus 301 outputs a reactor shutdown driving signal and/or a driving signal of a dedicated safety facility.
Optionally, if all the process parameter information does not exceed the corresponding setting value, the diversity driving apparatus 301 outputs the equipment state information and/or the process parameter information.
Further, the diversity driver 301 sends the signal for driving the execution of the automatic function to the security level execution module through the hardware unit of the priority level processing module.
And an executing device 303, configured to execute a corresponding automatic function operation according to the signal for driving the execution of the automatic function.
Optionally, the system further includes a priority processing module, configured to send the signal for driving to execute the automatic function to the execution device according to a preset priority processing mode.
Optionally, the system further comprises a digital protection device for collecting parameter information of each process in the operation of the nuclear power plant.
Specifically, the digital protection device transmits collected parameter information of each process in the operation of the nuclear power plant to the diversity driving device in a conventional distribution and hard-wired mode.
According to the embodiment of the invention, each acquired process parameter information in the operation of the nuclear power station is compared with the corresponding preset setting value, and if more than one and not all process parameter information exceeds the corresponding setting value, a signal for driving the execution of an automatic function is output, so that the automatic driving function is realized in diversified measures of the nuclear power station, manual driving is not required to be completely relied on, and important measures are provided for the deep defense of the nuclear power station. Meanwhile, due to the fact that the automatic driving function is achieved, a large number of safety relay logic devices do not need to be installed, maintenance amount is greatly reduced, and protection of system interfaces is achieved.
Referring to FIG. 4 in combination, FIG. 4 provides a schematic diagram of one embodiment of a nuclear power plant diversity drive system.
Specifically, a sensor in the digital protection system of the nuclear power station acquires various process parameter information in the operation of the nuclear power station, and the process parameter information is hard-wired to the diversity drive system through a conventional distribution and isolation module in the digital protection system before entering a digitization unit of the protection system. Therefore, the software common cause fault of the digital protection system cannot influence the automatic function of the diversity drive system and the parameter indication on the diversity human interface Disk (DHP) in the diversity system. Optionally, the equipment state information and/or the process parameter information of each equipment in the operation of the nuclear power plant are received.
And the nuclear power station diversity driving system compares the parameter information of each process with a preset corresponding setting value. Specifically, after being distributed in an isolated manner, the process parameter information shared by the diversified driving system and the protection system of the nuclear power plant is sent to the diversified driving redundant subsystem through a hard wire, and each subsystem respectively compares the process parameter information with the set corresponding setting value. Wherein the diversity drive redundancy subsystem comprises: the system comprises a steam turbine tripping redundant subsystem, an auxiliary water supply electric pump starting redundant subsystem, a steam-driven pump starting redundant subsystem, a main steam isolation redundant subsystem, a main water supply isolation redundant subsystem and a reactor coolant pump tripping redundant subsystem.
Further, the setting value of the diversity driver is designed to delay the automatic action of the protection system. The delayed minimum time requirement is that the protection action triggered by the digital protection system is completed and the state feedback signal of the related execution cabinet can be driven and used by diversity to lock the automatic action. For the setting value to ensure the required automatic action through the setting value design, the automatic action is delayed to delay the response time of the automatic action.
And if more than one and not all process parameter information exceeds corresponding setting values, outputting a signal for driving and executing an automatic function, wherein the automatic function comprises an automatic tripping function of a steam turbine, an automatic starting function of an auxiliary water supply electric pump, an automatic starting function of a steam-driven pump, an automatic main steam isolation function, an automatic main water supply isolation function and an automatic reactor coolant pump tripping function.
Optionally, if all the process parameter information exceeds the corresponding setting value, a reactor shutdown driving signal and/or a special safety facility driving signal is/are output.
Optionally, if all the process parameter information does not exceed the corresponding setting value, the equipment state information and/or the process parameter information is output. Further, the signal for driving the execution of the automatic function is sent to the security level execution module through the hardware unit of the priority level processing module. Further, the diversified human interface panel DHP sends alarm information according to the signal of the drive execution automatic function.
For the implementation method and the process of the system, reference may be made to the method embodiments described in the foregoing embodiments, and details are not described here.
In combination with the above detailed description of the present invention, it can be seen that the present invention has at least the following advantageous technical effects over the prior art: the acquired process parameter information of the nuclear power station in operation is compared with the preset corresponding setting value, if more than one and not all process parameter information exceeds the corresponding setting value, a signal for driving the execution of an automatic function is output, the automatic driving function is realized in the diversified measures of the nuclear power station, manual driving is not required to be completely relied on, and important measures are provided for the depth defense of the nuclear power station. Meanwhile, due to the fact that the automatic driving function is achieved, a large number of safety relay logic devices do not need to be installed, maintenance amount is greatly reduced, and protection of system interfaces is achieved. In addition, due to the fact that hard wiring is used for connection, the common cause fault problem brought by a software system is reduced. The implementation method is simple and easy to implement, and good technical effects are achieved.
The present invention can be modified and adapted appropriately from the above-described embodiments, according to the principles described above. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (21)
1. A nuclear power plant diversity driving method, characterized by comprising:
acquiring parameter information of each process in the operation of the nuclear power station;
comparing the parameter information of each process with a preset corresponding setting value;
and if more than one and not all process parameter information exceeds corresponding setting values, outputting a signal for driving and executing an automatic function, wherein the automatic function comprises an automatic tripping function of a steam turbine, an automatic starting function of an auxiliary water supply electric pump, an automatic starting function of a steam-driven pump, an automatic main steam isolation function, an automatic main water supply isolation function and an automatic reactor coolant pump tripping function.
2. The method according to claim 1, wherein the obtaining information of each process parameter in the operation of the nuclear power plant further comprises:
and receiving equipment state information and/or process parameter information of each equipment in the operation of the nuclear power station.
3. The method of claim 1, further comprising:
and sending alarm information according to the signal for driving the execution of the automatic function.
4. The method of claim 1, further comprising:
and if all the process parameter information exceeds the corresponding setting values, outputting a reactor shutdown driving signal and/or a special safety facility driving signal.
5. The method of claim 2, further comprising:
and if all the process parameter information does not exceed the corresponding setting value, outputting the equipment state information and/or the process parameter information.
6. The method of claim 4, further comprising:
and sending the signal for driving the execution of the automatic function to a security level execution module through a hardware unit of the priority level processing module.
7. A nuclear power plant diversity actuation arrangement, characterized in that the arrangement comprises:
the acquisition unit is used for acquiring parameter information of each process in the operation of the nuclear power station;
the comparison unit is used for comparing the acquired parameter information of each process with a preset corresponding setting value;
and the output unit is used for outputting a signal for driving and executing an automatic function if more than one and not all process parameter information exceeds corresponding setting values, wherein the automatic function comprises an automatic tripping function of a steam turbine, an automatic starting function of an auxiliary water supply electric pump, an automatic starting function of a steam-driven pump, an automatic main steam isolation function, an automatic main water supply isolation function and an automatic reactor coolant pump tripping function.
8. The apparatus of claim 7, wherein the obtaining unit is further configured to:
and receiving equipment state information and/or process parameter information of each equipment in the operation of the nuclear power station.
9. The apparatus of claim 7, further comprising:
and the diversified man-machine interface disc is used for sending alarm information according to the signal of the drive execution automatic function.
10. The apparatus of claim 7, wherein the output unit is further configured to:
and if all the process parameter information exceeds the corresponding setting values, outputting a reactor shutdown driving signal and/or a special safety facility driving signal.
11. The apparatus of claim 8, wherein the output unit is further configured to:
and if all the process parameter information does not exceed the corresponding setting value, outputting the equipment state information and/or the process parameter information.
12. The apparatus of claim 10, wherein the output unit is further configured to:
and sending the signal for driving the execution of the automatic function to a security level execution module through a hardware unit of the priority level processing module.
13. A nuclear power plant diversity actuation system, the system comprising:
the system comprises a diversity driving device, a control device and a control device, wherein the diversity driving device is used for comparing each acquired process parameter information in the operation of the nuclear power station with a preset corresponding setting value, and outputting a signal for driving to execute an automatic function if more than one and not all process parameter information exceed the corresponding setting value, and the automatic function comprises a turbine automatic trip function, an auxiliary water supply electric pump automatic starting function, a steam driven pump automatic starting function, a main steam automatic isolating function, a main water supply automatic isolating function and a reactor coolant pump automatic pump tripping function;
and the executing device is used for executing corresponding automatic function operation according to the signal for driving the automatic function execution.
14. The system of claim 13, wherein the diversity driver is further configured to:
and receiving equipment state information and/or process parameter information of each equipment in the operation of the nuclear power station.
15. The system of claim 13, wherein the diversity driver is further configured to:
and sending alarm information according to the signal for driving the execution of the automatic function.
16. The system of claim 13, wherein the diversity driver is further configured to:
and if all the process parameter information exceeds the corresponding setting values, outputting a reactor shutdown driving signal and/or a special safety facility driving signal.
17. The system of claim 14, wherein the diversity driver is further configured to:
and if all the process parameter information does not exceed the corresponding setting value, outputting the equipment state information and/or the process parameter information.
18. The system of claim 16, wherein the diversity driver is further configured to:
and sending the signal for driving the execution of the automatic function to a security level execution module through a hardware unit of the priority level processing module.
19. The system of claim 18, further comprising:
and the priority processing module is used for sending the signal for driving the execution of the automatic function to the execution device according to a preset priority processing mode.
20. The system of claim 19, further comprising:
and the digital protection device is used for acquiring parameter information of each process in the operation of the nuclear power station.
21. The system of claim 20, wherein the digital protection device is further configured to:
and transmitting the collected parameter information of each process in the operation of the nuclear power station to the diversity driving device in a conventional distribution and hard wiring mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410742281.8A CN104485142A (en) | 2014-12-08 | 2014-12-08 | Diversified driving method, diversified driving device and diversified driving system for nuclear power station |
| PCT/CN2015/096712 WO2016091158A1 (en) | 2014-12-08 | 2015-12-08 | Diversity drive method, device and system for nuclear power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410742281.8A CN104485142A (en) | 2014-12-08 | 2014-12-08 | Diversified driving method, diversified driving device and diversified driving system for nuclear power station |
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| CN104485142A true CN104485142A (en) | 2015-04-01 |
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