CN115171930A - Rod position monitoring method, device, equipment and storage medium for high-temperature gas cooled reactor control rod - Google Patents
Rod position monitoring method, device, equipment and storage medium for high-temperature gas cooled reactor control rod Download PDFInfo
- Publication number
- CN115171930A CN115171930A CN202210868184.8A CN202210868184A CN115171930A CN 115171930 A CN115171930 A CN 115171930A CN 202210868184 A CN202210868184 A CN 202210868184A CN 115171930 A CN115171930 A CN 115171930A
- Authority
- CN
- China
- Prior art keywords
- rod position
- signal
- rod
- control rod
- temperature gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- 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
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention provides a method, a device, equipment and a storage medium for monitoring the rod position of a control rod of a high-temperature gas cooled reactor. The invention can realize the function of online calibrating the rod position signal of the high-temperature gas cooled reactor control rod, improve the rod position measuring accuracy of the high-temperature gas cooled reactor control rod and improve the economy and the reliability of the control rod driving mechanism.
Description
Technical Field
The invention relates to the technical field of equipment monitoring, in particular to a method, a device, equipment and a storage medium for monitoring the rod position of a control rod of a high-temperature gas cooled reactor.
Background
The modular high-temperature gas cooled reactor is an advanced reactor type with the characteristics of a fourth-generation reactor, has the advantages of good inherent safety, high power generation efficiency, good economy, wide application and the like, can replace the traditional fossil energy, and realizes the coordinated development of economy and ecological environment. The high-temperature gas cooled reactor is generally provided with two sets of independent reactivity control systems. The primary reactivity control system typically employs a control rod shutdown system, and the backup reactivity control system typically employs an absorption sphere shutdown system. Because the reactor core of the pebble-bed high-temperature gas cooled reactor has low power density, the reactor core has large volume and is of a slim reactor core structure in order to realize more economical electric power. The length of the control rod and the length of the control rod drive line can reach more than 11 meters, so that the connecting piece of the control rod drive mechanism and the control rod is generally flexibly connected by adopting a loop chain or a steel wire rope and the like, and the long-distance rod lifting and inserting actions can be realized in a limited space.
In order to obtain the accurate position of the control rod in the reactor core, a rod position measuring device needs to be installed on the control rod driving mechanism, and the rod position measuring device is required to be reliable in operation, accurate in measurement, resistant to irradiation and resistant to high temperature.
Disclosure of Invention
The invention provides a method, a device, equipment and a storage medium for monitoring the rod position of a control rod of a high-temperature gas cooled reactor, and aims to realize accurate and reliable rod position measurement and online calibration functions.
Therefore, a first object of the present invention is to provide a rod position monitoring method for a high temperature gas cooled reactor control rod, comprising:
acquiring a drive motor action signal, a stepping detection signal and an upper limit position signal of a high-temperature gas cooled reactor control rod;
determining an actual rod position, a logic rod position and a standby rod position of the high-temperature gas cooled reactor control rod based on the motor rotation signal and the stepping detection signal;
and carrying out zero adjustment and fault monitoring on the rod position of the control rod of the high-temperature gas cooled reactor based on the actual rod position, the logic rod position and the standby rod position.
The driving motor action signal comprises a motor steering signal, a motor rotation signal and a motor rotating speed signal.
The step of determining the actual rod position of the control rod of the high temperature gas cooled reactor based on the motor rotation signal and the stepping detection signal comprises the following steps:
determining the stepping number of a stepping motor based on the stepping detection signal, and judging the rod position action mode of the control rod of the high-temperature gas cooled reactor according to the motor rotation signal;
if the action mode of the rod position is lifting, adding the initial rod position and the stepping number to obtain the current rod position; if the action mode of the rod position is downward insertion, subtracting the step number from the initial rod position to obtain the current rod position;
and when the fault signal is normal, assigning the current rod position to the actual rod position, and outputting the actual rod position.
The step of determining the logic rod position of the control rod of the high temperature gas cooled reactor based on the motor rotation signal and the stepping detection signal comprises the following steps:
calculating the rotation distance of the stepping motor according to the integral of the motor rotation signal duration and the motor rotation speed signal;
calculating the displacement of the control rod according to the constant relation between the rotation distance of the stepping motor and the displacement of the control rod; obtaining a control rod position action mode according to the stepping motor steering signal X1;
if the rod position action mode is lifting, adding the actual rod position and the control rod displacement to obtain a logic rod position; if the action mode of the rod position is downward insertion, subtracting the displacement of the control rod from the actual rod position to obtain a logic rod position;
comparing the logic rod position with the actual rod position, wherein within 3 steps of deviation, the fault signal is normal, and the deviation exceeds 3 steps, and outputting a first fault signal.
Wherein, in the step of determining the standby rod position of the control rod of the high temperature gas cooled reactor based on the motor rotation signal and the stepping detection signal, the method comprises the following steps:
acquiring a standby stepping detection signal, determining the standby stepping number of the stepping motor based on the standby stepping detection signal, and judging a rod position action mode according to a motor rotation signal;
if the rod position action mode is lifting, the current rod position and the standby step number are added to obtain a standby rod position, and if the rod position action mode is downward insertion, the current rod position and the standby step number are subtracted to obtain a standby rod position;
comparing the standby stick position with the logic stick position, outputting a second fault signal when the fault signal is normal within 3 steps of deviation and the deviation exceeds 3 steps.
In the step of zero setting the rod position of the high-temperature gas cooled reactor control rod, when an upper limit position signal is triggered, the current rod position is compared with a preset rod position length, the deviation is within 50mm, a fault signal is normal, the deviation exceeds 50mm, and a third fault signal is output.
And in the step of carrying out zero setting on the rod position of the high-temperature gas cooled reactor control rod, if at least one of the first fault signal, the second fault signal and the third fault signal is received, carrying out fault alarm.
The second objective of the present invention is to provide a rod position monitoring device for a control rod of a high temperature gas cooled reactor, comprising:
the signal acquisition module is used for acquiring a drive motor action signal, a stepping detection signal and an upper limit position signal of the high-temperature gas cooled reactor control rod;
the rod position calculation module is used for determining the actual rod position, the logic rod position and the standby rod position of the high-temperature gas cooled reactor control rod based on the motor rotation signal and the stepping detection signal;
and the rod position monitoring module is used for carrying out zero adjustment and fault monitoring on the rod position of the control rod of the high-temperature gas cooled reactor based on the actual rod position, the logic rod position and the standby rod position.
A third object of the present invention is to provide an electronic apparatus, comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executable by the at least one processor to enable the at least one processor to perform the steps of the method of the preceding claims.
A fourth object of the present invention is to propose a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the steps of the method according to the aforementioned technical solution.
Different from the prior art, the rod position monitoring method for the high-temperature gas cooled reactor control rod provided by the invention has the advantages that the fault monitoring is carried out on the action of the high-temperature gas cooled reactor control rod by acquiring the working signal of the stepping motor and combining the stepping detection signal and the upper limit position signal, and the rod position zeroing and fault monitoring of the high-temperature gas cooled reactor control rod are carried out on the basis of the actual rod position, the logic rod position and the standby rod position which are obtained through calculation. The invention can realize the function of online calibrating the rod position signal of the high-temperature gas cooled reactor control rod, improve the rod position measuring accuracy of the high-temperature gas cooled reactor control rod and improve the economy and the reliability of the control rod driving mechanism.
Drawings
The invention and/or additional aspects and advantages will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart of a rod position monitoring method for a high temperature gas cooled reactor control rod according to the present invention.
Fig. 2 is a schematic structural diagram of monitoring equipment adopted in the rod position monitoring method of the high temperature gas cooled reactor control rod provided by the invention.
Fig. 3 is a schematic structural diagram of a rod position monitoring device for a high temperature gas cooled reactor control rod according to the present invention.
Fig. 4 is a schematic structural diagram of a non-transitory computer-readable storage medium provided in the present invention.
In FIG. 2, 1-control rod driver, 2-control rod position transmitter, 3-control rod drive motor, 4-drive mechanism, 5-standby step detector, 6-hub mechanism, 7-step detector, 8-upper limit switch, 9-control rod, 11-control rod driver output terminal, 12-control rod driver input terminal, 21-control rod position logic processor, 22-control rod position transmitter input terminal, 23-control rod position transmitter output terminal, 41-planetary reducer, 42-electromagnetic coupler and 43-eddy current governor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1, a method for monitoring a rod position of a control rod of a high temperature gas cooled reactor according to an embodiment of the present invention includes:
s110: and acquiring a drive motor action signal, a stepping detection signal and an upper limit position signal of the high-temperature gas cooled reactor control rod.
The method of the invention is carried out by relying on the monitoring device shown in figure 2 when the rod position of the control rod of the high-temperature gas cooled reactor is monitored. Specifically, the device includes: the control rod position transducer comprises a control rod driver 1, a control rod position transducer 2, a control rod driving motor 3, a transmission mechanism 4, a standby step detector 5, a hub mechanism 6, a step detector 7, an upper limit position switch 8 and a control rod 9;
the control rod drive motor 3, the transmission mechanism 4, the hub mechanism 6 and the upper limit switch 8 are connected in sequence, the control rod drive motor 3 is connected with the control rod driver 1, and the upper limit switch 8 is connected with the control rod 9.
The control rod driver 1 is a power control device of a control rod drive motor 3, and comprises two power control modules inside, each module is independently connected to one winding of the control rod drive motor 3, and the rotation control of the control rod drive motor 3 can be realized; the two control modules are mutually standby, and after one module breaks down, the other module is started immediately. In fig. 2, 11 denotes a control rod driver output terminal, 12 denotes a control rod driver input terminal, and a motor operation signal of the stepping motor is acquired through the control rod driver input terminal 12, and a specific type is identified and transmitted to the control rod position transmitter 2 through the control rod driver output terminal 11.
The control rod position transmitter 2 is a control logic processing device of the control rod 9. In fig. 2, 21 denotes a control rod position logic processor, 22 denotes a control rod position transmitter input terminal, and 23 denotes a control rod position transmitter output terminal. The motor action signal, the stepping detection signal and the upper limit position signal are received through the input terminal 22 of the control rod position transmitter, logic processing is carried out through a logic processor in the control rod position transmitter 2, a fault signal, a limit output signal and a rod position output signal are obtained, and the fault signal, the limit output signal and the rod position output signal are output through the output terminal 23 of the control rod position transmitter.
The control rod driving motor 3 is a double-winding stepping motor or a servo motor, adopts a one-use one-standby winding arrangement, and is connected with an input shaft of the transmission mechanism 4 by adopting an external spline or a flat key.
The transmission mechanism 4 is composed of a planetary gear reducer 41, an electromagnetic clutch 42 and an electromagnetic damper 43, and has the functions of transmission, speed limitation and rod position keeping.
The standby stepping detector 5 is an eddy current sensor arranged on the side edge of the gear of the hub mechanism 6; the distance between the top of the gear of the hub mechanism 6 and the probe of the eddy current sensor is periodic along with the rotation of the gear; when the hub mechanism 6 rotates one tooth space, the signal of the eddy current sensor changes periodically; monitoring signals of the eddy current sensor are transmitted to the control rod position transmitter 2 through a lead, a periodic change is recognized as a stepping signal, and online monitoring of the control rod position is realized; the detection signal of the backup stepping detector 5 is used as a backup comparison signal of the control rod position transmitter 2, the accuracy of the main signal is calibrated and the backup stepping detector is used as an emergency rod position measuring signal when the main signal fails.
The hub mechanism 6 is of a stepped cylindrical structure, a steel wire rope guide wheel is installed at the lower part of the hub mechanism, and a cable guide groove is formed in an upper cylinder of the hub mechanism and used for guiding when a steel wire rope is wound; gears are arranged at two ends of the cylinder, a flat gear is arranged at the left side and used for rod position monitoring in the operation process, and a bevel gear is arranged at the right side and meshed with a bevel gear of a transmission device to transmit the rotary motion of the stepping motor to the hub mechanism 6; a shaft is arranged in the middle, and bearings are arranged at two ends of the shaft; the steel wire rope is finally fastened on the bevel gear fixing hole on one side of the hub.
The stepping detector 7 is another eddy current sensor arranged on the opposite side of the gear of the hub mechanism; the distance between the top of the gear of the hub mechanism 6 and the probe of the eddy current sensor is periodic along with the rotation of the gear; when the hub mechanism 6 rotates one tooth space, the signal of the eddy current sensor changes periodically; monitoring signals of the eddy current sensor are transmitted to the control rod position transmitter 2 through a lead, a periodic change is recognized as a stepping signal, and online monitoring of the control rod position is realized; the signal of the stepping detector is used as the detection signal of the main rod position, the monitoring result is used as the main basis of reactivity control, when the stepping detector 7 has a fault, shutdown maintenance is required, and the standby stepping detector 5 is only used for indicating the rod position during shutdown.
The upper limit switch 8 is a ring sleeve structure provided with a travel switch, the size of an opening in the middle of the ring sleeve can pass through a steel wire rope but cannot pass through the control rod 9, and the travel switch is arranged in the ring sleeve, so that the control rod contacts the travel switch when lifted to the upper limit position to trigger an upper limit signal.
The control rod 9 adopted by the invention is of a chain link type rod-saving structure; double verification of the standby rod position and the logic rod position is adopted, so that the accuracy of rod position measurement is ensured; rod position drift monitoring is realized through the upper limit switch, and the elongation of the steel wire rope caused by high-temperature creep and other reasons is corrected, so that the reactivity control is more accurate; the arrangement adopts a double-winding motor and a double-drive module, so that the reliability of the drive mechanism is improved, and the safety of the reactor is ensured.
The following describes the implementation process of the method with reference to the specific structure of the apparatus.
Specifically, the control rod driver 1 obtains a motor steering signal X1, a motor rotation signal X2 and a motor rotation speed signal X3 of the control rod drive motor 3 from the control rod drive motor 3, outputs a three-phase pulse signal of the control rod drive motor 3 through processing of the control module, drives the control rod drive motor to rotate, and achieves control rod lifting and drop insertion. The control rod position transmitter 2 obtains a motor steering signal X1, a motor rotation signal X2 and a motor rotating speed signal X3 of the control rod driving motor 3, obtains a stepping signal Z0 from the control rod stepping detector 7, obtains a standby stepping signal Z1 from the standby stepping detector 5 and obtains an upper limit position signal Z2 from the upper limit position switch 8.
S120: and determining the actual rod position, the logic rod position and the standby rod position of the high-temperature gas cooled reactor control rod based on the motor rotation signal and the stepping detection signal.
When the actual rod position of the control rod of the high-temperature gas cooled reactor is determined based on the motor rotation signal and the stepping detection signal, the method comprises the following steps:
determining the stepping number of a stepping motor based on the stepping detection signal, and judging the rod position action mode of the control rod of the high-temperature gas cooled reactor according to the motor rotation signal;
if the rod position action mode is lifting, adding the initial rod position and the stepping number to obtain the current rod position; if the action mode of the rod position is downward insertion, subtracting the step number from the initial rod position to obtain the current rod position;
and when the fault signal is normal, assigning the current rod position to the actual rod position, and outputting the actual rod position.
Specifically, a step number A0 is obtained through a step signal Z0, rod position lifting or inserting is judged according to a motor rotation signal X2, if the rod position lifting signal is a lifting signal, an initial rod position B0 and the step number A0 are added to obtain a current rod position B1, when the rod position lifting signal is an inserting signal, the initial rod position B0 and the step number A0 are subtracted to obtain the current rod position B1, when a fault signal G0 is a normal value 0, the current rod position B1 is assigned to the rod position B0, and meanwhile, a rod position B0 signal is output to a reactivity control system.
When the logic rod position of the control rod of the high-temperature gas cooled reactor is determined based on the motor rotation signal and the stepping detection signal, the method comprises the following steps:
calculating the rotation distance of the stepping motor according to the integral of the motor rotation signal duration and the motor rotation speed signal;
calculating the displacement of the control rod according to the constant relation between the rotating distance of the stepping motor and the displacement of the control rod; obtaining a control rod position action mode according to a stepping motor steering signal X1;
if the rod position action mode is lifting, adding the actual rod position and the control rod displacement to obtain a logic rod position; if the rod position action mode is downward insertion, subtracting the actual rod position from the control rod displacement to obtain a logic rod position;
comparing the logic rod position with the actual rod position, wherein within 3 steps of deviation, the fault signal is normal, and the deviation exceeds 3 steps, and outputting a first fault signal.
Specifically, the rotating distance D1 of the stepping motor is obtained according to the integration of the duration time of the motor rotating signal X2 and the motor rotating speed signal X3, the control rod displacement L1 is obtained through the constant relation L1= n × D1 (n is determined according to the design of the reduction mechanism) between the motor rotating distance and the control rod displacement L1, the control rod downward insertion and lifting states are obtained according to the stepping motor rotating signal X1, the initial rod position B0 and the initial rod position L1 are added to obtain a logic rod position B2 during lifting, and the initial rod position B0 and the initial rod position L1 are subtracted to obtain a logic rod position B2 during downward insertion; and comparing the B1 rod position with the B2 rod position, wherein within 3 steps of deviation, the fault signal G1 is assigned to be 0, and when the deviation exceeds 3 steps, the fault signal G1 is assigned to be 1.
When the standby rod position of the control rod of the high-temperature gas cooled reactor is determined based on the motor rotation signal and the stepping detection signal, the method comprises the following steps:
acquiring a standby stepping detection signal, determining the standby stepping number of the stepping motor based on the standby stepping detection signal, and judging a rod position action mode according to a motor rotation signal;
if the rod position action mode is lifting, the current rod position and the standby step number are added to obtain a standby rod position, and if the rod position action mode is downward insertion, the current rod position and the standby step number are subtracted to obtain a standby rod position;
comparing the standby stick position with the logic stick position, outputting a second fault signal when the fault signal is normal within 3 steps of deviation and the deviation exceeds 3 steps.
Specifically, a step number A1 is obtained through a standby step signal Z1, rod position lifting or inserting is judged according to a motor rotation signal X2, an initial rod position B0 and the step number A1 are added to obtain a standby rod position B3 when the signal is lifted, and the initial rod position B0 and the step number are subtracted to obtain a standby rod position B3 when the signal is inserted; and comparing the B3 rod position with the B1 rod position, wherein within 3 steps of deviation, the fault signal G2 is assigned to be 0, the deviation exceeds 3 steps, and the fault signal G2 is assigned to be 1.
S130: and carrying out zero adjustment and fault monitoring on the rod position of the control rod of the high-temperature gas-cooled reactor based on the actual rod position, the logic rod position and the standby rod position.
When the control rod is lifted to the upper limit position, the control rod contacts the travel switch to trigger an upper limit position signal.
In the step of zero setting of the rod position of the high-temperature gas cooled reactor control rod, when an upper limit signal Z2 is triggered to be 1, the rod position B0 is compared with a constant Bmax (determined according to the stroke of a control rod driving mechanism, and is 11000 at least), the deviation is within 50mm, a fault signal G3 is assigned to be 0, the deviation exceeds 50mm, and the fault signal G3 is assigned to be 1.
And if at least one of the first fault signal, the second fault signal and the third fault signal is received, performing fault alarm. The G1 signal is obtained from the logic rod position processing, the G2 signal is obtained from the rod position calibration, the G3 signal is obtained from the rod position zero setting, the OR operation is carried out on the three groups of signals, the G0 signal is output, and the alarm is sent out according to the G0 signal.
The control rod position transmitter outputs a fault signal G0, a normal rod position signal B0, a standby rod position signal B2 and a limit signal Z2 to a reactivity control system (not shown).
As shown in fig. 3, the present invention further provides a rod position monitoring device for a control rod of a high temperature gas cooled reactor, comprising:
the signal acquisition module 310 is used for acquiring a drive motor action signal, a stepping detection signal and an upper limit position signal of the high-temperature gas cooled reactor control rod;
the rod position calculation module 320 is used for determining the actual rod position, the logic rod position and the standby rod position of the high-temperature gas cooled reactor control rod based on the motor rotation signal and the stepping detection signal;
and the rod position monitoring module 330 is used for carrying out high-temperature gas cooled reactor control rod position zeroing and fault monitoring based on the actual rod position, the logic rod position and the standby rod position.
In order to implement the embodiment, the present invention further provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the steps of the method for monitoring rod position of a control rod of a high temperature gas cooled reactor according to the above technical scheme.
As shown in fig. 4, the non-transitory computer readable storage medium includes a memory 810 of instructions, an interface 830, the instructions executable by the processor 820 to perform a method according to the high temperature gas cooled reactor control rod position monitoring. Alternatively, the storage medium may be a non-transitory computer readable storage medium, for example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
To achieve the embodiments, the present invention also proposes a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the rod position monitoring of the high temperature gas cooled reactor control rods according to the embodiments of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the described embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
One of ordinary skill in the art will appreciate that all or part of the steps carried out in the method of implementing the embodiments described herein may be implemented by hardware associated with instructions of a program, which may be stored in a computer-readable storage medium, and which, when executed, includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The mentioned storage medium may be a read-only memory, a magnetic or optical disk, etc. While embodiments of the present invention have been shown and described above, it will be understood that the embodiments are illustrative and not to be construed as limiting the invention, and that changes, modifications, substitutions and alterations can be made therein by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A method for monitoring the rod position of a control rod of a high-temperature gas cooled reactor is characterized by comprising the following steps:
acquiring a drive motor action signal, a stepping detection signal and an upper limit position signal of a high-temperature gas cooled reactor control rod;
determining an actual rod position, a logic rod position and a standby rod position of the high-temperature gas cooled reactor control rod based on the motor rotation signal and the stepping detection signal;
and carrying out zero adjustment and fault monitoring on the rod position of the high-temperature gas cooled reactor control rod based on the actual rod position, the logic rod position and the standby rod position.
2. The method as claimed in claim 1, wherein the driving motor action signal includes a motor steering signal, a motor rotation signal and a motor speed signal.
3. The method for monitoring the rod position of the control rod of the high temperature gas cooled reactor as claimed in claim 1, wherein the step of determining the actual rod position of the control rod of the high temperature gas cooled reactor based on the motor rotation signal and the step detection signal comprises:
determining the stepping number of a stepping motor based on the stepping detection signal, and judging the rod position action mode of the high-temperature gas cooled reactor control rod according to the motor rotation signal;
if the rod position action mode is lifting, adding the initial rod position and the stepping number to obtain the current rod position; if the rod position action mode is downward insertion, subtracting the stepping number from the initial rod position to obtain the current rod position;
and when the fault signal is normal, assigning the current rod position to the actual rod position, and outputting the actual rod position.
4. The method for monitoring the rod position of the control rod of the high temperature gas cooled reactor as claimed in claim 3, wherein the step of determining the logic rod position of the control rod of the high temperature gas cooled reactor based on the motor rotation signal and the step detection signal comprises:
calculating the rotating distance of the stepping motor according to the integral of the motor rotating signal duration and the motor rotating speed signal;
calculating the displacement of the control rod according to the constant relation between the rotating distance of the stepping motor and the displacement of the control rod; obtaining a control rod position action mode according to a stepping motor steering signal X1;
if the rod position action mode is lifting, adding the actual rod position and the control rod displacement to obtain a logic rod position; if the rod position action mode is downward insertion, subtracting the actual rod position from the control rod displacement to obtain a logic rod position;
comparing the logic rod position with the actual rod position, wherein within 3 steps of deviation, the fault signal is normal, and the deviation exceeds 3 steps, and outputting a first fault signal.
5. The method for monitoring the rod position of the control rod of the high temperature gas cooled reactor as claimed in claim 4, wherein the step of determining the standby rod position of the control rod of the high temperature gas cooled reactor based on the motor rotation signal and the step detection signal comprises:
acquiring a standby stepping detection signal, determining the standby stepping number of a stepping motor based on the standby stepping detection signal, and judging a rod position action mode according to a motor rotation signal;
if the rod position action mode is lifting, adding the current rod position and the standby stepping number to obtain a standby rod position, and if the rod position action mode is downward insertion, subtracting the current rod position and the standby stepping number to obtain a standby rod position;
and comparing the standby stick position with the logic stick position, wherein within 3 steps of deviation, the fault signal is normal, and the deviation exceeds 3 steps, and outputting a second fault signal.
6. The rod position monitoring method for the control rod of the high temperature gas cooled reactor as claimed in claim 5, wherein in the step of zeroing the rod position of the control rod of the high temperature gas cooled reactor, when the upper limit position signal is triggered, the current rod position is compared with a preset rod position length, the deviation is within 50mm, the fault signal is normal, the deviation exceeds 50mm, and a third fault signal is output.
7. The method as claimed in claim 6, wherein a fault alarm is issued when at least one of the first fault signal, the second fault signal and the third fault signal is received during the step of zeroing the rod position of the high temperature gas cooled reactor control rod.
8. The utility model provides a high temperature gas cooled reactor control rod position monitoring devices which characterized in that includes:
the signal acquisition module is used for acquiring a drive motor action signal, a stepping detection signal and an upper limit position signal of the high-temperature gas cooled reactor control rod;
the rod position calculation module is used for determining the actual rod position, the logic rod position and the standby rod position of the high-temperature gas cooled reactor control rod based on the motor rotation signal and the stepping detection signal;
and the rod position monitoring module is used for carrying out high-temperature gas cooled reactor control rod position zeroing and fault monitoring based on the actual rod position, the logic rod position and the standby rod position.
9. An electronic device, comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the steps of the method of any one of claims 1-7.
10. A non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform the steps of the method according to any one of claims 1-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210868184.8A CN115171930A (en) | 2022-07-21 | 2022-07-21 | Rod position monitoring method, device, equipment and storage medium for high-temperature gas cooled reactor control rod |
| PCT/CN2023/112803 WO2024017402A1 (en) | 2022-07-21 | 2023-08-14 | Position monitoring method and apparatus for high-temperature gas cooled reactor control rod, device, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210868184.8A CN115171930A (en) | 2022-07-21 | 2022-07-21 | Rod position monitoring method, device, equipment and storage medium for high-temperature gas cooled reactor control rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115171930A true CN115171930A (en) | 2022-10-11 |
Family
ID=83497359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210868184.8A Pending CN115171930A (en) | 2022-07-21 | 2022-07-21 | Rod position monitoring method, device, equipment and storage medium for high-temperature gas cooled reactor control rod |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115171930A (en) |
| WO (1) | WO2024017402A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024017402A1 (en) * | 2022-07-21 | 2024-01-25 | 华能核能技术研究院有限公司 | Position monitoring method and apparatus for high-temperature gas cooled reactor control rod, device, and storage medium |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0796495B1 (en) * | 1994-12-08 | 1998-08-12 | Siemens Aktiengesellschaft | System and process for controlling control rods in a nuclear power plant |
| KR101034252B1 (en) * | 2008-12-30 | 2011-05-12 | 한국전기연구원 | Trouble detecting apparatus for RSPT and CPCS having the same, and trouble detecting method thereof |
| CN101877250B (en) * | 2010-05-31 | 2012-10-10 | 中国核动力研究设计院 | Rod position processing device of nuclear power station control rod based on PLC (Programmable Logic Controller) platform |
| CN102214489B (en) * | 2011-05-18 | 2013-06-05 | 清华大学 | Rod position measuring device and method |
| CN104616705B (en) * | 2015-01-09 | 2017-08-29 | 中广核研究院有限公司 | Reactor control rod control system |
| CN206363768U (en) * | 2016-11-14 | 2017-07-28 | 广东核电合营有限公司 | Nuclear power station rod control system test device |
| CN112394639B (en) * | 2020-11-20 | 2021-08-24 | 西安热工研究院有限公司 | Nuclear power unit control rod adjusting method and system with incremental adjusting function |
| CN115171930A (en) * | 2022-07-21 | 2022-10-11 | 华能核能技术研究院有限公司 | Rod position monitoring method, device, equipment and storage medium for high-temperature gas cooled reactor control rod |
-
2022
- 2022-07-21 CN CN202210868184.8A patent/CN115171930A/en active Pending
-
2023
- 2023-08-14 WO PCT/CN2023/112803 patent/WO2024017402A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024017402A1 (en) * | 2022-07-21 | 2024-01-25 | 华能核能技术研究院有限公司 | Position monitoring method and apparatus for high-temperature gas cooled reactor control rod, device, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024017402A1 (en) | 2024-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6888262B2 (en) | Method and apparatus for wind turbine rotor load control | |
| DK1760311T3 (en) | Method and apparatus for condition-based monitoring of wind turbine components | |
| JP6407592B2 (en) | Wind turbine generator abnormality diagnosis device and abnormality diagnosis method | |
| WO2024017402A1 (en) | Position monitoring method and apparatus for high-temperature gas cooled reactor control rod, device, and storage medium | |
| CN101935737B (en) | Device for integrally detecting height of oxygen lance height and looseness and tightness of steel wire rope of oxygen gun | |
| CN106494960A (en) | A kind of lift running safety monitoring and initial failure early warning system and method | |
| CN102923573A (en) | On-line detecting device and method for descending brake distance of crane hoisting mechanism | |
| CN107830837B (en) | Layered settlement automatic measuring device and measuring method thereof | |
| KR101358397B1 (en) | Fault detection appaturas and method for wind turbin base on acceleration sensor and output power | |
| US20090174397A1 (en) | Internal instrumentation system for a nuclear reactor, the system having an advanced electronic card, and a corresponding method of modifying an internal instrumentation system of a nuclear reactor | |
| CN204003267U (en) | Steel wire belt tension automatic monitoring system and containing the wind turbine pitch-controlled system of this system | |
| CN104158374B (en) | Permagnetic synchronous motor and fatigue measurement method provided with stator built-in temperature sensor | |
| CN202912580U (en) | On-line detection device for drop braking distance of hoisting mechanism of hoist | |
| US5179515A (en) | Neutron flux detector positioning | |
| KR101250206B1 (en) | Blade of wind farm surveillance system and method the same | |
| JP5762839B2 (en) | TIP system and TIP monitoring and control apparatus | |
| JP2013205119A (en) | Mobile reactor power measuring apparatus and extraction control method for mobile detector therein | |
| CN202090012U (en) | Integral detection device for height of oxygen lance and tightness of steel wire rope of oxygen lance | |
| EP2639796B1 (en) | Traversing in core power monitoring system and method for monitoring the driving torque | |
| CN219179492U (en) | GIS isolating switch driving motor output power measuring device | |
| JPS6156476B2 (en) | ||
| CN114216419B (en) | Combined type meter counting system of take-up equipment in rotating body | |
| CN114017238B (en) | Hydroelectric generating set, thrust tile adjusting method thereof, load monitoring method and load monitoring system | |
| CN117029905A (en) | Early warning method and system suitable for large-scale reel shafting structure | |
| CN113188744B (en) | Collision test device for bearing rolling body and retainer of planetary gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |