CN112863719A - Design method for continuous steps in digital operation procedure of nuclear power plant - Google Patents
Design method for continuous steps in digital operation procedure of nuclear power plant Download PDFInfo
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Abstract
The invention relates to a design method of continuous steps in a digital operation procedure of a nuclear power plant, which comprises the following steps: determining key elements of a human-computer interface for executing the continuous steps according to the characteristics and the execution mode of the continuous steps; establishing a continuous step execution flow according to the key elements of the human-computer interface, and determining the detailed functions of the key elements in the human-computer interface design; determining display and control elements on an operation interface according to the human-computer interface function; ) And determining the final human-computer interface for executing continuous steps according to the human-computer interface function and the display and control elements by combining the overall design of the digital operation rule of the main control room. The invention can effectively process the operation requirements of the continuous steps and realize the human-computer interaction function of the operator and the continuous steps in the digital regulation, thereby improving the efficiency of processing the abnormal and accident operation regulations and enhancing the safety of the nuclear power plant under the abnormal and accident working conditions.
Description
Technical Field
The invention relates to a design technology of a nuclear power plant, in particular to a design method of continuous steps in a digital operation procedure of the nuclear power plant.
Background
Under the Abnormal operation condition and the accident operation condition of the pressurized water reactor nuclear power plant, an operator needs to use an Abnormal Operation Procedure (AOP) and an accident operation Procedure (EOP). The abnormal and accident operation rules and measures thereof belong to the third defense line of the depth defense principle of the nuclear power plant, and are means for relieving accidents and limiting the consequences of the accidents.
At present, unlike a nuclear power plant using a traditional main Control room, a newly-built nuclear power plant adopts implementation of a Digital operation regulation on the basis of a full Digital Control System (DCS). The scientific and reasonable digital protocol man-machine interface is helpful for operators to correctly and efficiently process the operation protocols. The reasonable design of the man-machine interface of the digital procedure needs to be adapted to the format, content and use characteristics of the running procedure on one hand so as to meet the reading and operating habits of operators, and on the other hand needs to utilize the advantages of a computer system on information integration and data calculation as much as possible so as to improve the operating efficiency of the procedure.
The abnormal and accident operation rule of the nuclear power plant is composed of a series of operation steps, and a preset operation strategy is completed through sequential collocation and operation division, so that the operation target is realized, the consequences of abnormal working conditions and accident working conditions are relieved, and the unit safety is ensured. The operation step may include one or more types of monitoring of parameter information, judgment of conditions, and operation of the device. When the operator is finished executing the step instruction, the step should be marked as finished. In abnormal and accident operating regulations, there is a special class of operating steps called "sequential steps" (there may be different calls in different nuclear power plants). The sequential steps can be subdivided into non-sequential steps, continuous steps, and periodic steps. A common feature of consecutive steps is that they cannot simply be marked and skipped after they have been executed, and may require the operator to continue to focus on and operate on the consecutive steps until the end conditions specified in the consecutive steps are met.
Therefore, the execution of the continuous steps has various characteristics such as uncertainty of condition satisfaction, long-term occupation of operation authority, uncertainty of completion time and the like, and great challenge is brought to the digital design of the operation regulation. If the problem of continuous steps cannot be solved, the operation of a main line strategy of abnormal and accident operation regulations can be influenced, and the safety of the nuclear power plant is even endangered.
Disclosure of Invention
The invention aims to provide a design method of continuous steps in a digital operation regulation of a nuclear power plant, so that the operation requirements of the continuous steps are effectively processed, the man-machine interaction function of an operator and the continuous steps in the digital regulation is realized, the processing efficiency of abnormal and accident operation regulations is improved, and the safety of the nuclear power plant under abnormal and accident working conditions is enhanced.
The technical scheme of the invention is as follows: a design method for continuous steps in a digital operation procedure of a nuclear power plant comprises the following steps:
(1) determining key elements of a human-computer interface for executing the continuous steps according to the characteristics and the execution mode of the continuous steps;
(2) establishing a continuous step execution flow according to the key elements of the human-computer interface, and determining the detailed functions of the key elements in the human-computer interface design;
(3) determining display and control elements on an operation interface according to the human-computer interface function;
(4) and determining the final human-computer interface for executing continuous steps according to the human-computer interface function and the display and control elements by combining the overall design of the digital operation rule of the main control room.
Further, according to the method for designing the continuous steps in the digital operation procedure of the nuclear power plant, the key elements of the human-machine interface in the step (1) include: determining condition judgment of continuous steps, managing the authority of the continuous steps, listing the continuous steps and finishing condition judgment of the continuous steps.
Further, according to the method for designing the continuous steps in the digital operation procedure of the nuclear power plant, the continuous step execution flow in the step (2) includes:
(2-1) judging whether the current step is a continuous step, if so, entering (2-2), and if not, skipping the step;
(2-2) adding the continuous steps into a continuous step list and releasing operation authority;
(2-3) the operator acquires operation authority, calls the continuous steps from the continuous step list, and performs operation and continuous attention;
(2-4) judging whether the continuous steps are finished or not, if so, entering (2-5), and if not, returning (2-3);
(2-5) removing the completed continuous step from the continuous step list and releasing the operation authority of the step.
Further, according to the method for designing the continuous steps in the digital operation procedure of the nuclear power plant, the detailed functions in the step (2) comprise:
according to the current state parameters of the unit, automatically or manually judging whether the continuous steps determine whether the conditions are met;
determining a condition judgment result according to the continuous steps, and automatically or manually adding the continuous steps into a continuous step list;
when the continuous step list is added in the continuous step, the operation authority of the step is automatically or manually released;
when the operator calls the continuous steps from the continuous step list, automatically or manually acquiring operation authority;
in different operator workstations, the information of the continuous step list should be synchronized in real time;
automatically or manually judging whether the unfinished continuous step finishing conditions in the continuous step list are met or not according to the current state parameters of the unit;
automatically or manually removing the continuous steps from the continuous step list according to the judgment result of the continuous step completion condition;
when a successive step is removed from the list of successive steps, the operating right of the step is automatically or manually released.
Further, according to the method for designing the continuous steps in the digital operation procedure of the nuclear power plant, the display and control elements in the step (3) comprise general elements and special elements, wherein the general elements comprise continuous step content display, unit parameter display and step operation authority management controls, and the special elements comprise continuous step adding controls, continuous step list display and continuous step completing controls.
The invention has the following beneficial effects:
1. by analyzing the characteristics and the execution mode of the continuous steps, the invention can ensure that the functions of the human-computer interface of the continuous steps meet the use requirements of an operator;
2. by extracting key elements of the continuous steps, the human-computer interface of the continuous steps can be ensured to be concise and effective, and unnecessary functions or information is prevented from reducing the execution efficiency of the continuous steps;
3. the detailed functions of the human-computer interface are determined by analyzing the continuous step operation flow chart, so that the continuity of continuous step execution can be ensured, and functional omission is avoided;
4. and display and control elements are determined according to the human-computer interface function, so that the friendly and perfect human-computer interaction interface is ensured, and an operator can quickly acquire information and execute corresponding actions.
Drawings
FIG. 1 is a flow chart of a method for designing the successive steps in the digital operation procedure of a nuclear power plant according to the present invention;
FIG. 2 is a flow chart illustrating the sequential steps of the human-machine interface according to the present invention;
FIG. 3 is a diagram of an example of a continuous step human machine interface in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a design method and an implementation scheme of a human-computer interface for executing continuous steps, which can effectively process the operation requirements of the continuous steps and realize the human-computer interaction function of an operator and the continuous steps in a digital procedure. As shown in fig. 1, the man-machine interface design method implemented in successive steps includes the following steps:
1) determining key elements of the human-computer interface according to the characteristics and the execution mode of the continuous steps
a) The successive steps are similar in form to the general steps, all requiring an operator to monitor the status of a certain parameter or to operate a certain device, with the difference that: whether the parameter state and the equipment operation achieve the expected result or not, the general steps are shifted to the next step to be continuously executed, and the continuous steps supplement the requirements, such as: once (the conditions are met), the present step is returned to be executed, or "adjustment is continued until (the conditions are met)," or "check every other. These requirements are essentially a conditional judgment, and it is determined whether the step is executed according to the continuous steps according to the judgment result, which is an important feature for distinguishing the continuous steps from the general steps, thereby obtaining the first key element: and determining condition judgment in successive steps.
b) After the continuous steps are determined, in order to avoid influencing the execution efficiency of the overall strategy of the procedure, an operator executing the procedure should go to the subsequent steps to continue operation, and the continuous steps are paid attention and completed by other operators, and the problem of operation authority is involved here. In the digital procedure, in order to avoid misoperation, operation authority can be set for the operation procedure, only an operator who acquires the operation authority can operate the procedure, and other operators who do not acquire the operation authority can only browse the procedure content. In order to ensure the smooth execution of the continuous steps, after the continuous steps are determined, the operation authority of the steps is released, and an operator who executes the continuous steps subsequently can obtain the operation authority. The second key element is thus obtained: and (4) continuously managing the rights.
c) In a running procedure, there are often multiple consecutive steps, and the consecutive steps are independent of each other, so during the execution of the procedure, there may be multiple consecutive steps that need to be accumulated and attention is paid, and therefore, a list of incomplete consecutive steps needs to be established to ensure that the operator does not miss them. A third key element is thus obtained: a list of consecutive steps.
d) After the supplementary operation of the continuous steps is executed, condition judgment is needed, if the condition is met, the continuous steps are finished, the operator does not need to pay attention again, and if the condition is not met, the operator needs to keep paying attention continuously. The fourth key element is thus obtained: and finishing condition judgment in the continuous steps.
2) Establishing a continuous step execution flow according to key elements of the human-computer interface, and determining the detailed functions of the elements in the design of the human-computer interface
According to the key elements determined in 1), combining the execution characteristics of the continuous steps, the operation flow of the continuous steps can be obtained as follows, and is shown in fig. 2:
2-1) judging whether the current step is a continuous step, if so, entering 2-2), and if not, skipping the step;
2-2) adding the continuous steps into a continuous step list and releasing the operation authority;
2-3) an operator acquires operation authority, calls the continuous steps from the continuous step list, and performs operation and continuous attention;
2-4) judging whether the continuous steps are finished or not, if so, entering 2-5), and if not, returning to 2-3);
2-5) removing the completed continuous step from the continuous step list and releasing the operation authority of the step.
By analyzing the continuous step operation flow and combining the man-machine interaction characteristics of the master control room operator workstation, the following man-machine interface functions can be determined:
according to the current state parameters of the unit, automatically or manually judging whether the continuous steps determine whether the conditions are met;
determining a condition judgment result according to the continuous steps, and automatically or manually adding the continuous steps into a continuous step list;
when the continuous step list is added in the continuous step, the operation authority of the step is automatically or manually released;
when the operator calls the continuous steps from the continuous step list, automatically or manually acquiring operation authority;
in different operator workstations, the information of the continuous step list should be synchronized in real time;
automatically or manually judging the incomplete continuous step completion in the continuous step list according to the current state parameters of the unit
Whether the success condition is satisfied;
automatically or manually removing the continuous steps from the continuous step list according to the judgment result of the continuous step completion condition;
when a successive step is removed from the list of successive steps, the operating right of the step is automatically or manually released.
3) Determining display and control elements on an operator interface based on human machine interface functions
Based on the human machine interface functions determined in 2), the relevant display and control elements on the operator's workstation interface (some of which are identical to those required for the execution of a general step, labeled "general elements", and others, which are specific to the execution of successive steps, labeled "special elements") can be determined:
continuous step content display (common element);
unit parameter display (general purpose element);
operating a right management control (a general element);
adding continuous step control (special element);
continuous step list display (special element);
the control (special element) is completed in successive steps.
4) And (3) obtaining the final human-computer interface for executing continuous steps according to the human-computer interface function determined in the step (2) and the display and control elements determined in the step (3) by combining the overall design (such as the overall layout of the human-computer interface, the setting of the control and display functions and the like) of the digital operation rule of the main control room.
Examples
The design method of the present invention is described below by taking a typical continuous step as an example in a nuclear power plant accident schedule. The typical succession of steps is:
the reactor coolant pressure is monitored and once the pressure drops below [ constant ], the two low pressure safety injection pumps are restarted.
The determination conditions of the continuous steps of the step are as follows: the reactor coolant pressure is higher than or equal to [ constant ].
When the operator performs this step, if the pressure is higher than [ constant ], it needs to be added to the list of consecutive steps and the operating right is released.
An operator arranged to perform successive steps acquires operational authority and will continue to focus on reactor coolant pressure.
The conditions for completing the continuous steps of the step are as follows: the reactor coolant pressure is lower than [ constant ] and the two low pressure safety injection pumps have been started.
When it is observed that the pressure has dropped below the fixed value, the operator manually activates the two low pressure safety injection pumps, the sequence is completed, removed from the list of sequence steps, and the operating authority is released.
The design characteristics of the digital regulation system of the nuclear power plant are combined to obtain a human-machine interface form related to continuous step execution, which is shown in figure 3.
In fig. 3, the numbers marked are the display and control elements of the continuous step human-computer interface, specifically:
the method comprises the following steps: the rule management button is used for acquiring and releasing the step operation authority;
secondly, the step of: the "Add continuous Steps" button, clicks to add the current step to the continuous Steps List;
③: the picture menu can be linked to the picture corresponding to the step, and is used for acquiring the pressure information of the reactor coolant and controlling the low-pressure safety injection pump;
fourthly, the method comprises the following steps: continuously displaying the step content;
fifthly: the continuous step list can display the continuous steps needing attention currently and can open the continuous steps to display specific contents through links;
sixthly, the method comprises the following steps: the "consecutive steps complete" button, and clicking can remove the selected consecutive steps from the list.
It is obvious to a person skilled in the art that the method according to the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the process being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A design method for continuous steps in a digital operation procedure of a nuclear power plant comprises the following steps:
(1) determining key elements of a human-computer interface for executing the continuous steps according to the characteristics and the execution mode of the continuous steps;
(2) establishing a continuous step execution flow according to the key elements of the human-computer interface, and determining the detailed functions of the key elements in the human-computer interface design;
(3) determining display and control elements on an operation interface according to the human-computer interface function;
(4) and determining the final human-computer interface for executing continuous steps according to the human-computer interface function and the display and control elements by combining the overall design of the digital operation rule of the main control room.
2. The method for designing the successive steps in the digitized operating procedure of the nuclear power plant as recited in claim 1, wherein the key elements of the man-machine interface in step (1) include: determining condition judgment of continuous steps, managing the authority of the continuous steps, listing the continuous steps and finishing condition judgment of the continuous steps.
3. The method for designing the successive steps in the digitized operating procedure of the nuclear power plant as recited in claim 2, wherein the execution flow of the successive steps in the step (2) comprises:
(2-1) judging whether the current step is a continuous step, if so, entering (2-2), and if not, skipping the step;
(2-2) adding the continuous steps into a continuous step list and releasing operation authority;
(2-3) the operator acquires operation authority, calls the continuous steps from the continuous step list, and performs operation and continuous attention;
(2-4) judging whether the continuous steps are finished or not, if so, entering (2-5), and if not, returning (2-3);
(2-5) removing the completed continuous step from the continuous step list and releasing the operation authority of the step.
4. A method for designing successive steps in a digitized operating protocol for a nuclear power plant according to claim 2 or 3, characterized in that the detailed functions in step (2) include:
according to the current state parameters of the unit, automatically or manually judging whether the continuous steps determine whether the conditions are met;
determining a condition judgment result according to the continuous steps, and automatically or manually adding the continuous steps into a continuous step list;
when the continuous step list is added in the continuous step, the operation authority of the step is automatically or manually released;
when the operator calls the continuous steps from the continuous step list, automatically or manually acquiring operation authority;
in different operator workstations, the information of the continuous step list should be synchronized in real time;
automatically or manually judging whether the unfinished continuous step finishing conditions in the continuous step list are met or not according to the current state parameters of the unit;
automatically or manually removing the continuous steps from the continuous step list according to the judgment result of the continuous step completion condition;
when a successive step is removed from the list of successive steps, the operating right of the step is automatically or manually released.
5. The method for designing continuous steps in a digitized operation procedure of a nuclear power plant as claimed in claim 1, wherein the display and control elements in step (3) include general elements and special elements, wherein the general elements include continuous step content display, unit parameter display, step operation authority management controls, and the special elements include continuous step adding controls, continuous step list display, and continuous step completing controls.
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