CN116598027A - High temperature gas cooled reactor moving rod system and method, electronic equipment and readable storage medium - Google Patents
High temperature gas cooled reactor moving rod system and method, electronic equipment and readable storage medium Download PDFInfo
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- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
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Abstract
Embodiments of the present disclosure provide a high temperature gas cooled reactor moving rod system and method, an electronic device, a readable storage medium, the moving rod system comprising: the device comprises a nuclear power PID module, a rod selecting module and a driving module; the nuclear power PID module is used for calculating a pulse frequency value according to a nuclear power actual measurement value and a nuclear power set value of the reactor; the rod selecting module is used for generating a rod selecting signal of a selected target adjusting rod based on a symmetrical level principle according to the rod position signal of each adjusting rod, the moving rod reaching limit value signal of each adjusting rod and the pulse frequency value; the driving module is used for driving the target adjusting rod to move according to the pulse frequency value, the rod selecting signal and the rod moving limit value. Through the nuclear power PID module, the rod selecting module and the driving module, the regulating rod can automatically and intermittently move the rod, and the situation that the nuclear power is high in positive change rate or the nuclear power is high in negative change rate and the shutdown is protected due to continuous movement of the rod is avoided.
Description
Technical Field
The embodiment of the disclosure belongs to the technical field of high-temperature gas cooled reactors, and particularly relates to a high-temperature gas cooled reactor movable rod system and method, electronic equipment and a readable storage medium.
Background
For nuclear power units, control rods are the most direct means of controlling reactor nuclear power. The control rod is inserted down to introduce negative reactivity and the nuclear power is reduced. Raising the control rod to introduce positive reaction and raising nuclear power. The nuclear power is regulated by lifting or inserting a control rod, which is the normal operation of the nuclear power unit.
The existing high-temperature gas cooled reactor is generally provided with 24 control rods, wherein 6 safety rods, 6 regulating rods and 12 compensating rods. The 24 control rod tunnels are uniformly arranged on the circumference of one side of the graphite reflecting layer, which is close to the active region of the reactor core. When the nuclear power is in an automatic control mode, 6 regulating rods execute automatic lifting or inserting operation according to an automatic lifting rod operation instruction of the power regulating system.
In the debugging process of the high-temperature gas cooled reactor, the control rod is normally operated by manually lifting the rod or lowering the rod once, the nuclear power positive change rate or the nuclear power negative change rate is easily triggered to protect the shutdown, the limit value of the single rod lifting or lowering the rod is strictly controlled, and after each manual rod lifting or lowering operation is finished, the next manual rod lifting or lowering operation can be executed at intervals of a certain time.
When the nuclear power of the high-temperature gas cooled reactor is in an automatic control mode, if the actual nuclear power value is lower than or higher than the nuclear power set value, the regulating rod continuously executes automatic rod lifting or automatic rod descending operation according to an automatic rod lifting operation instruction of the power regulating system, and when the continuous lifting or descending operation exceeds a certain distance, the positive nuclear power change rate is triggered to be high or the negative nuclear power change rate is triggered to be high, so that the shutdown is protected. The automatic lifting rod operation of the high-temperature gas cooled reactor is a continuous rod moving process, the intermittent operation of the manual lifting rod cannot be imitated, and the high-power positive change rate or the high-power negative change rate of the nuclear power is easily triggered to protect shutdown.
Disclosure of Invention
Embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art, and provide a high-temperature gas cooled reactor moving rod system and method, an electronic device, and a readable storage medium.
In one aspect of the embodiments of the present disclosure, there is provided a high temperature gas cooled reactor moving rod system comprising: the device comprises a nuclear power PID module, a rod selecting module and a driving module;
the nuclear power PID module is used for calculating a pulse frequency value according to a nuclear power actual measurement value and a nuclear power set value of the reactor;
the rod selecting module is used for generating a rod selecting signal of a selected target adjusting rod based on a symmetrical level principle according to the rod position signal of each adjusting rod, the moving rod reaching limit value signal of each adjusting rod and the pulse frequency value;
and the driving module is used for driving the target adjusting rod which is selected correspondingly to move the rod according to the pulse frequency value, the rod selecting signal and the rod moving limit value.
Optionally, the rod selecting module is specifically further configured to:
selecting the regulating rod with the lowest/highest rod position in all regulating rods as the target regulating rod according to the positive/negative of the pulse frequency value; the method comprises the steps of,
stopping the operation of the target regulating rod when the lifting/lowering of the target regulating rod reaches a specified limit value, and selecting the regulating rod symmetrical to the target regulating rod as a new target regulating rod; the method comprises the steps of,
and when the target regulating rod and the new target regulating rod are lifted/lowered once, reselecting the regulating rod with the lowest/highest rod position in all regulating rods as the next target regulating rod until the actual nuclear power measured value is equal to the nuclear power set value.
Optionally, the moving rod system further comprises a delay module;
the delay module is used for selectively delaying the rod selecting signal for a preset time and then sending the delayed rod selecting signal to the driving module.
Optionally, when the received bar selecting signal is a high level signal, the delay module delays for a preset time and outputs the high level signal;
and the delay module outputs the low-level signal immediately when the received rod selecting signal is the low-level signal.
Optionally, the driving module is specifically further configured to:
driving the target adjusting rod to lift/lower according to the positive/negative of the pulse frequency value; the method comprises the steps of,
controlling the rod speed of lifting/lowering of the target adjusting rod according to the absolute value of the pulse frequency value; the method comprises the steps of,
and when the movable rod limit value is reached, controlling the target regulating rod to stop lifting/descending, generating a movable rod limit value signal and sending the movable rod limit value signal to the rod selecting module.
In another aspect of embodiments of the present disclosure, there is provided a high temperature gas cooled reactor moving rod method comprising:
calculating to obtain a pulse frequency value according to the actual nuclear power measured value and the nuclear power set value of the reactor;
generating a rod selecting signal of a selected target adjusting rod based on a symmetrical level principle according to the rod position signal of each adjusting rod, the moving rod reaching limit value signal of each adjusting rod and the pulse frequency value;
and driving the target adjusting rod which is selected correspondingly to move the rod according to the pulse frequency value, the rod selecting signal and the rod moving limit value.
Optionally, the generating, based on the symmetry and leveling principle, a rod selecting signal of the selected target adjusting rod according to the rod position signal of each adjusting rod, the moving rod reaching limit value signal of each adjusting rod and the pulse frequency value includes:
selecting the regulating rod with the lowest/highest rod position in all regulating rods as the target regulating rod according to the positive/negative of the pulse frequency value; the method comprises the steps of,
stopping the operation of the target regulating rod when the lifting/lowering of the target regulating rod reaches a specified limit value, and selecting the regulating rod symmetrical to the target regulating rod as a new target regulating rod; the method comprises the steps of,
and when the target regulating rod and the new target regulating rod are lifted/lowered once, reselecting the regulating rod with the lowest/highest rod position in all regulating rods as the next target regulating rod until the actual nuclear power measured value is equal to the nuclear power set value.
Optionally, the driving the corresponding selected target adjusting rod to move the rod according to the pulse frequency value, the rod selecting signal and the rod moving limit value includes:
driving the target adjusting rod to lift/lower according to the positive/negative of the pulse frequency value; the method comprises the steps of,
controlling the rod speed of lifting/lowering of the target adjusting rod according to the absolute value of the pulse frequency value; the method comprises the steps of,
and when the movable rod limit value is reached, controlling the target regulating rod to stop lifting/descending.
In another aspect of embodiments of the present disclosure, there is provided an electronic device including:
one or more processors;
and a storage unit for storing one or more programs, which when executed by the one or more processors, enable the one or more processors to implement the stick moving method according to the foregoing description.
In another aspect of the embodiments of the present disclosure, a computer-readable storage medium having a computer program stored thereon,
the computer program, when executed by a processor, is capable of implementing the dynamic bar method according to the foregoing description.
According to the high-temperature gas cooled reactor movable rod system and method, the electronic equipment and the readable storage medium, the automatic operation mode of the regulating rod can be optimized and perfected, the regulating rod can be automatically and intermittently moved, and the situation that the nuclear power positive change rate is high or the nuclear power negative change rate is high due to continuous movement of the regulating rod is avoided, so that shutdown is protected.
Drawings
FIG. 1 is a schematic diagram of a high temperature gas cooled reactor moving rod system according to an embodiment of the present disclosure;
FIG. 2 is a schematic block flow diagram of a method of moving rods in a high temperature gas cooled reactor according to another embodiment of the present disclosure.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present disclosure, the present disclosure will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in fig. 1, a high temperature gas cooled reactor moving rod system 100, the moving rod system 100 includes a nuclear power PID module 110, a rod selection module 120, and a drive module 130. The nuclear power PID module 110 is configured to calculate a pulse frequency value according to a nuclear power actual measurement value and a nuclear power set value of the reactor. The rod selecting module 120 is configured to generate a rod selecting signal of a selected target adjusting rod based on a symmetry and leveling principle according to a rod position signal of each adjusting rod, a moving rod reaching limit value signal of each adjusting rod, and the pulse frequency value. The driving module 130 is configured to drive the target adjusting rod to move according to the pulse frequency value, the rod selecting signal and the rod moving limit value.
Specifically, as shown in fig. 1, the core power PID module 110 is configured to obtain a core power actual measurement value and a core power set value of the reactor, and perform deviation calculation by using the obtained core power actual measurement value and the core power set value to obtain a pulse frequency value. The rod selecting module 120 is configured to obtain a rod position signal of each adjusting rod, a moving rod reaching limit value signal of each adjusting rod, and a pulse frequency value calculated by the core power PID module 110, and generate a rod selecting signal of a selected target adjusting rod based on a symmetry and leveling principle according to the obtained rod position signal, the moving rod reaching limit value signal, and the pulse frequency value. The driving module 130 is preset with a moving bar limit value, and can drive the corresponding selected target adjusting bar to move the bar according to the moving bar limit value, the acquired pulse frequency value and the bar selecting signal.
According to the high-temperature gas cooled reactor movable rod system, through the arranged nuclear power PID module, the rod selecting module and the driving module, the regulating rod can automatically and intermittently move the rod, the situation that the continuous movement of the rod causes high positive change rate of the nuclear power or high negative change rate of the nuclear power is avoided, the reactor is stopped in a protection mode, and the automatic operation mode of the regulating rod is optimized and perfected.
Illustratively, as shown in fig. 1, the stick selecting module 120 is specifically further configured to: and selecting the regulating rod with the lowest/highest rod position in all regulating rods as the target regulating rod according to the positive/negative of the pulse frequency value. And stopping the operation of the target adjusting rod when the target adjusting rod is lifted/lowered to a specified limit value, and selecting the adjusting rod symmetrical to the target adjusting rod as a new target adjusting rod. And when the target regulating rod and the new target regulating rod are lifted/lowered once, reselecting the regulating rod with the lowest/highest rod position in all regulating rods as the next target regulating rod until the actual nuclear power measured value is equal to the nuclear power set value.
Specifically, as shown in fig. 1, when the pulse frequency value is positive, the rod selection module 120 selects the adjustment rod with the lowest rod position among all adjustment rods as the target adjustment rod. The operation of the target adjustment bar is stopped when the target adjustment bar lift reaches a prescribed limit, that is, the selection bar module 120 no longer selects the adjustment bar as the target adjustment bar when the target adjustment bar lift reaches the lift bar limit. Meanwhile, the rod selecting module 120 selects an adjusting rod symmetrical to the adjusting rod just lifted to reach the specified limit value as a new target adjusting rod based on the principle of symmetry and leveling, after the new target adjusting rod is lifted to reach the limit value of lifting rod, the rod selecting module 120 selects the adjusting rod with the lowest/highest rod position in all the adjusting rods again as the target adjusting rod according to the positive/negative pulse frequency value, and the process is repeated until the actual measured value of the nuclear power is equal to the set value of the nuclear power. That is, until the pulse frequency value is 0, the rod selection module 120 no longer selects the adjustment rods, each of which maintains the current rod position.
When the pulse frequency value is negative, the rod selection module 120 selects the rod with the highest rod position among all the rods as the target rod. The operation of the target adjustment bar is stopped when the target adjustment bar is lowered to a prescribed limit, that is, the bar selection module 120 does not select the adjustment bar as the target adjustment bar any more when the target adjustment bar is lowered to the lowering limit. Meanwhile, the rod selecting module 120 selects an adjusting rod symmetrical to the adjusting rod just lowered to reach the specified limit value as a new target adjusting rod based on the principle of symmetry and leveling, after the new target adjusting rod is lowered to reach the limit value of lowering rod, the rod selecting module 120 selects the adjusting rod with the lowest/highest rod position in all the adjusting rods again as the target adjusting rod according to the positive/negative pulse frequency value, and the process is repeated until the actual measured value of the nuclear power is equal to the set value of the nuclear power. That is, until the pulse frequency value is 0, the rod selection module 120 no longer selects the adjustment rods, each of which maintains the current rod position.
It should be noted that, based on the principle of symmetry and leveling, the rod selecting module 120 selects only one adjusting rod as the target adjusting rod at the same time.
According to the high-temperature gas cooled reactor movable rod system, the regulating rod is selected through the rod selecting module, so that the regulating rod can automatically and intermittently move, the situation that the nuclear power positive change rate is high or the nuclear power negative change rate is high due to continuous movement of the regulating rod is avoided, the reactor is shut down is avoided, and the normal execution of the nuclear power automatic regulating function is ensured.
Illustratively, as shown in FIG. 1, the movable bar system 100 further includes a delay module 140. The delay module 140 is configured to selectively delay the rod selecting signal by a preset time and send the delayed rod selecting signal to the driving module 130.
Specifically, as shown in fig. 1, an input end of the delay module 140 is connected to an output end of the rod selecting module 120, and an output end of the delay module 140 is connected to an input end of the driving module 130. The delay module 140 delays the received select bar signal for a preset time and outputs the high level signal when the select bar signal is the high level signal. The delay module outputs the low level signal immediately when the received select bar signal is the low level signal.
It should be appreciated that when the select bar signal is a high signal, it may indicate that the select bar signal is 1, i.e., the corresponding adjustment bar is selected. When the select bar signal is a low level signal, it may indicate that the select bar signal is 0, i.e., the corresponding adjustment bar is unselected.
According to the high-temperature gas cooled reactor movable rod system, through the set delay module, automatic intermittent movable rods of the regulating rods can be realized, the situation that the continuous movable rods cause high positive change rate of nuclear power or high negative change rate of nuclear power to protect shutdown is effectively avoided, and the automatic operation mode of the regulating rods is optimized and perfected.
Illustratively, as shown in fig. 1, the driving module 130 is specifically further configured to: and driving the target adjusting rod to lift/lower according to the positive/negative of the pulse frequency value. And controlling the rod speed of lifting/lowering of the target adjusting rod according to the absolute value of the pulse frequency value. And when the movable bar limit value is reached, controlling the target adjusting bar to stop lifting/descending, and generating a movable bar limit value signal to be sent to the bar selecting module 120.
Specifically, as shown in fig. 1, when the pulse frequency value is positive, the driving module 130 drives the target adjusting rod to lift, and when the lifting distance of the target adjusting rod reaches the lifting limit value, the driving module 130 stops driving the target adjusting rod to lift, and generates a moving rod reaching limit value signal to send to the rod selecting module 120. When the pulse frequency value is negative, the driving module 130 drives the target adjusting rod to descend, and when the descending distance of the target adjusting rod reaches the descending limit value, the driving module 130 stops driving the target adjusting rod to descend, and generates a rod moving reaching limit value signal to be sent to the rod selecting module 120. When the driving module 130 drives the adjusting rod to lift or lower, the rod speed of the lifting or lowering of the adjusting rod is determined according to the absolute value of the pulse frequency value. The rod speed of the adjusting rod lifting or lowering is faster when the absolute value of the pulse frequency value is large, and is slower when the absolute value of the pulse frequency value is small.
As a specific example, as shown in fig. 1, the reactor is provided with 6 tuning rods, each of which corresponds to a separate driving module and delay module. Of course, the driving module and the delay module may be provided in different numbers according to actual needs and connected with the corresponding adjusting bars, which is not particularly limited in this embodiment. Wherein, 6 regulating rods are divided into 3 groups according to the symmetrical relation: the R1 rod and the R5 rod are combined into a group, the R2 rod and the R6 rod are combined into a group, and the R3 rod and the R4 rod are combined into a group. As one example, as shown in fig. 1, when the nuclear power set value of the reactor is greater than the actual nuclear power measured value, a pulse frequency value is output after the operation of the nuclear power PID module, and the pulse frequency value is greater than 0. And when the rod selecting module receives a pulse frequency value greater than 0, comparing rod positions of the 6 regulating rods, selecting the regulating rod with the lowest rod position (taking an R1 rod as an example), and generating a rod selecting signal, namely, the R1 rod selecting signal is 1. And the R1 rod selecting signal is processed and delayed for a preset time by the corresponding delay module and then is sent to the corresponding driving module. And after receiving the pulse frequency value larger than 0 and simultaneously receiving the R1 rod selecting signal, the driving module drives the R1 rod to lift at the rod speed corresponding to the absolute value of the pulse frequency value. And when the lifting of the R1 rod reaches the lifting limit value, stopping lifting of the R1 rod, and generating a R1 rod moving rod reaching limit value signal.
And after the rod selecting module receives the R1 rod moving rod reaching the limit value signal, stopping selecting the R1 rod (namely, the R1 rod selecting rod signal is 0), and selecting the R5 rod symmetrical to the R1 rod (namely, the R5 rod selecting rod signal is 1).
And the R5 rod selecting signal is processed and delayed for a preset time by the corresponding delay module and then is sent to the corresponding driving module. And after receiving the pulse frequency value larger than 0 and simultaneously receiving the R5 rod selecting signal, the driving module drives the R5 rod to lift at the rod speed corresponding to the absolute value of the pulse frequency value. And when the lifting of the R5 rod reaches the lifting limit value, stopping lifting of the R5 rod, and generating a R5 rod moving rod reaching limit value signal.
When the group of adjusting rods R1 and R5 are lifted once, the rod selecting module judges the rod positions of the 6 adjusting rods again, and the adjusting rod with the lowest rod position is selected for lifting, so that circulation is performed. Therefore, 6 adjusting rods are intermittently lifted, positive reactivity is introduced, and the actual nuclear power measured value is intermittently lifted until the actual nuclear power measured value is consistent with the nuclear power set value.
As one example, as shown in fig. 1, when the set value of the nuclear power of the reactor is smaller than the actual measured value of the nuclear power, a pulse frequency value is output after the operation of the nuclear power PID module, and the pulse frequency value is smaller than 0. And when the rod selecting module receives a pulse frequency value smaller than 0, comparing rod positions of the 6 regulating rods, selecting the regulating rod with the highest rod position (taking an R1 rod as an example), and generating a rod selecting signal, namely, the R1 rod selecting signal is 1. And the R1 rod selecting signal is processed and delayed for a preset time by the corresponding delay module block and then is sent to the corresponding driving module. And after receiving the pulse frequency value smaller than 0 and simultaneously receiving the R1 rod selecting signal, the driving module drives the R1 rod to descend at the rod speed corresponding to the absolute value of the pulse frequency value. And when the R1 rod falls to the falling limit value, stopping the falling of the R1 rod, and generating a R1 rod moving rod reaching limit value signal.
And after the rod selecting module receives the R1 rod moving rod reaching the limit value signal, stopping selecting the R1 rod (namely, the R1 rod selecting rod signal is 0), and selecting the R5 rod symmetrical to the R1 rod (namely, the R5 rod selecting rod signal is 1).
And the R5 rod selecting signal is processed and delayed for a preset time by the corresponding delay module block and then is sent to the corresponding driving module. And after receiving the pulse frequency value smaller than 0 and simultaneously receiving the R5 rod selecting signal, the driving module drives the R5 rod to descend at the rod speed corresponding to the absolute value of the pulse frequency value. And when the R5 rod descending rod reaches the descending rod limit value, stopping descending of the R5 rod, and generating an R5 rod moving rod reaching limit value signal.
When the group of regulating rods R1 and R5 descends once, the rod selecting module judges the rod positions of the 6 regulating rods again, and the regulating rod with the highest rod position is selected to descend, so that circulation is performed. Therefore, 6 intermittent descending rods of the regulating rod are realized, negative reactivity is introduced, and the actual nuclear power measured value is reduced intermittently until the actual nuclear power measured value is consistent with the nuclear power set value.
As one example, as shown in fig. 1, when the core power set value of the reactor is equal to the core power actual measurement value, a pulse frequency value is output after operation by the core power PID module, and the pulse frequency value is equal to 0. And when the bar selecting module receives a pulse frequency value equal to 0, the adjusting bars are not selected, namely, all 6 adjusting bars are not selected, all 6 adjusting bars do not execute bar operation, and the current bar position is maintained.
According to the high-temperature gas cooled reactor movable rod system, through the arranged nuclear power PID module, the rod selecting module and the driving module, the regulating rod can automatically and intermittently move the rod, the situation that the continuous movement of the rod causes high positive change rate of nuclear power or high negative change rate of nuclear power to protect shutdown is avoided, the automatic operation mode of the regulating rod is optimized and perfected, the risk of unexpected shutdown of a reactor is effectively avoided, and the availability and economic benefit of a unit are improved.
In another aspect, as shown in fig. 2, an embodiment of the present disclosure provides a high temperature gas cooled reactor moving rod method, the moving rod method comprising: and S1, calculating to obtain a pulse frequency value according to the actual nuclear power measured value and the nuclear power set value of the reactor.
And S2, generating a rod selecting signal of a selected target adjusting rod based on a symmetrical level principle according to the rod position signal of each adjusting rod, the moving rod reaching limit value signal of each adjusting rod and the pulse frequency value.
Specifically, in this step, the adjustment rod with the lowest/highest rod position among all adjustment rods is selected as the target adjustment rod according to the positive/negative of the pulse frequency value. Stopping the operation of the target adjusting rod when the lifting/lowering of the target adjusting rod reaches a specified limit value, and selecting the adjusting rod symmetrical to the target adjusting rod as a new target adjusting rod. And when the target regulating rod and the new target regulating rod are lifted/lowered once, reselecting the regulating rod with the lowest/highest rod position in all regulating rods as the next target regulating rod until the actual nuclear power measured value is equal to the nuclear power set value.
And step S3, driving the target adjusting rod which is correspondingly selected to move according to the pulse frequency value, the rod selecting signal and the rod moving limit value.
Specifically, in this step, the target adjusting rod is driven to rise/fall according to the positive/negative of the pulse frequency value. And controlling the rod speed of lifting/lowering of the target regulating rod according to the absolute value of the pulse frequency value. And when the movable rod limit value is reached, controlling the target regulating rod to stop lifting/descending.
According to the high-temperature gas cooled reactor bar moving method, the adjusting bar can be automatically and intermittently moved, the situation that the nuclear power positive change rate is high or the nuclear power negative change rate is high due to continuous bar moving is avoided, the reactor shutdown is protected, the automatic operation mode of the adjusting bar is optimized and perfected, the risk of unexpected reactor shutdown is effectively avoided, and the availability and economic benefits of a unit are improved.
In another aspect, embodiments of the present disclosure provide an electronic device, comprising: one or more processors. A storage unit for storing one or more programs, which when executed by the one or more processors, enable the one or more processors to implement the stick moving method according to the preceding description.
In another aspect, embodiments of the present disclosure provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, is capable of implementing the stick moving method according to the foregoing description.
Wherein the computer readable storage medium may be embodied in the apparatus, system of the embodiments of the present disclosure or may exist alone.
Wherein the computer readable storage medium may be any tangible medium that can contain, or store a program that can be an electronic, magnetic, optical, electromagnetic, infrared, semiconductor system, apparatus, device, more specific examples of which include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, an optical fiber, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.
The computer-readable storage medium may also include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein, specific examples of which include, but are not limited to, electromagnetic signals, optical signals, or any suitable combination thereof.
It is to be understood that the above embodiments are merely exemplary embodiments employed to illustrate the principles of the present disclosure, however, the present disclosure is not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the disclosure, and are also considered to be within the scope of the disclosure.
Claims (10)
1. A high temperature gas cooled reactor moving rod system, the moving rod system comprising: the device comprises a nuclear power PID module, a rod selecting module and a driving module;
the nuclear power PID module is used for calculating a pulse frequency value according to a nuclear power actual measurement value and a nuclear power set value of the reactor;
the rod selecting module is used for generating a rod selecting signal of a selected target adjusting rod based on a symmetrical level principle according to the rod position signal of each adjusting rod, the moving rod reaching limit value signal of each adjusting rod and the pulse frequency value;
and the driving module is used for driving the target adjusting rod which is selected correspondingly to move the rod according to the pulse frequency value, the rod selecting signal and the rod moving limit value.
2. The high temperature gas cooled reactor mobile rod system of claim 1, wherein the rod selection module is further configured to:
selecting the regulating rod with the lowest/highest rod position in all regulating rods as the target regulating rod according to the positive/negative of the pulse frequency value; the method comprises the steps of,
stopping the operation of the target regulating rod when the lifting/lowering of the target regulating rod reaches a specified limit value, and selecting the regulating rod symmetrical to the target regulating rod as a new target regulating rod; the method comprises the steps of,
and when the target regulating rod and the new target regulating rod are lifted/lowered once, reselecting the regulating rod with the lowest/highest rod position in all regulating rods as the next target regulating rod until the actual nuclear power measured value is equal to the nuclear power set value.
3. The high temperature gas cooled reactor moving rod system according to claim 2, further comprising a delay module;
the delay module is used for selectively delaying the rod selecting signal for a preset time and then sending the delayed rod selecting signal to the driving module.
4. The high temperature gas cooled reactor movable rod system according to claim 3, wherein the delay module outputs the high level signal after delaying for a preset time when the received rod selecting signal is the high level signal;
and the delay module outputs the low-level signal immediately when the received rod selecting signal is the low-level signal.
5. The high temperature gas cooled reactor mobile rod system according to any one of claims 1 to 4, wherein the drive module is further specifically configured to:
driving the target adjusting rod to lift/lower according to the positive/negative of the pulse frequency value; the method comprises the steps of,
controlling the rod speed of lifting/lowering of the target adjusting rod according to the absolute value of the pulse frequency value; the method comprises the steps of,
and when the movable rod limit value is reached, controlling the target regulating rod to stop lifting/descending, generating a movable rod limit value signal and sending the movable rod limit value signal to the rod selecting module.
6. A high temperature gas cooled reactor moving rod method, characterized in that the moving rod method comprises:
calculating to obtain a pulse frequency value according to the actual nuclear power measured value and the nuclear power set value of the reactor;
generating a rod selecting signal of a selected target adjusting rod based on a symmetrical level principle according to the rod position signal of each adjusting rod, the moving rod reaching limit value signal of each adjusting rod and the pulse frequency value;
and driving the target adjusting rod which is selected correspondingly to move the rod according to the pulse frequency value, the rod selecting signal and the rod moving limit value.
7. The method of moving bars in a high temperature gas cooled reactor according to claim 6, wherein generating a bar selection signal for selecting a target adjusting bar based on a symmetry and leveling principle according to a bar position signal of each adjusting bar, a moving bar reaching limit value signal of each adjusting bar and the pulse frequency value comprises:
selecting the regulating rod with the lowest/highest rod position in all regulating rods as the target regulating rod according to the positive/negative of the pulse frequency value; the method comprises the steps of,
stopping the operation of the target regulating rod when the lifting/lowering of the target regulating rod reaches a specified limit value, and selecting the regulating rod symmetrical to the target regulating rod as a new target regulating rod; the method comprises the steps of,
and when the target regulating rod and the new target regulating rod are lifted/lowered once, reselecting the regulating rod with the lowest/highest rod position in all regulating rods as the next target regulating rod until the actual nuclear power measured value is equal to the nuclear power set value.
8. The method according to claim 6, wherein driving the corresponding selected target adjusting rod to move according to the pulse frequency value, the rod selecting signal and the rod moving limit value comprises:
driving the target adjusting rod to lift/lower according to the positive/negative of the pulse frequency value; the method comprises the steps of,
controlling the rod speed of lifting/lowering of the target adjusting rod according to the absolute value of the pulse frequency value; the method comprises the steps of,
and when the movable rod limit value is reached, controlling the target regulating rod to stop lifting/descending.
9. An electronic device, comprising:
one or more processors;
a storage unit for storing one or more programs, which when executed by the one or more processors, enable the one or more processors to implement the stick moving method according to any one of claims 6 to 8.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that,
the computer program, when executed by a processor, is capable of implementing a movable rod method according to any one of claims 6 to 8.
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| CN202310408208.6A CN116598027A (en) | 2023-04-17 | 2023-04-17 | High temperature gas cooled reactor moving rod system and method, electronic equipment and readable storage medium |
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| CN202310408208.6A CN116598027A (en) | 2023-04-17 | 2023-04-17 | High temperature gas cooled reactor moving rod system and method, electronic equipment and readable storage medium |
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