A nuclear power plant DCS control system

Abstract

The present application relates to a kind of nuclear power plant DCS control system, including signal acquisition unit and main control room operating platform, main control room operating platform includes the control rod control system interface operating module of intermediate variable display in control rod control system;Feedwater deaerator system interface operating module for the intermediate variable display of feedwater deaerator system;Main feedwater system interface operating module for the intermediate variable display of main feedwater system;Turbine bypass discharge system interface operating module for the intermediate variable display of turbine bypass discharge system;Output link's reactor core margin calculation system operating interface link module;Chemical volume control system interface operating module for the intermediate variable display of chemical volume control system;Boron and water supply system interface operating module for the intermediate variable display of boron and water supply system.The present application can assist operator to make judgment and intervention in advance to system state by increasing intermediate variable display;More intuitively master system state, reduce human error.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear power DCS system, and more particularly to a nuclear power plant DCS control system. BACKGROUND

[0002] The current pressurized water reactor nuclear power unit DCS control system (i.e. digital instrument control system) has a high intelligentization and automation level, but part of the abnormal transient condition still needs to be intervened by the operator. Since the KIC (nuclear power plant computer information and control system) interface cannot comprehensively display the internal parameters (i.e. important intermediate variables) of the DCS control system, the operator cannot accurately grasp the state of the DCS control system, thereby missing the best opportunity to intervene the unit and affecting the effective operation of the unit. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a nuclear power plant DCS control system.

[0004] The technical scheme adopted by the present application to solve the technical problem is: a nuclear power plant DCS control system is constructed, comprising: a signal acquisition unit and a main control room operation platform connected with the signal acquisition unit, the main control room operation platform comprising: a control rod control system interface operation module, a feedwater deaerator system interface operation module, a main feedwater system interface operation module, a turbine bypass discharge system interface operation module, a core margin calculation system operation interface linking module, a chemical volume control system interface operation module and a boron and water supply system interface operation module.

[0005] The control rod control system interface operation module is used for displaying the field devices of the control rod control system and displaying the intermediate variables in the control rod control system.

[0006] The feedwater deaerator system interface operation module is used for displaying the field devices of the feedwater deaerator system and displaying the intermediate variables in the feedwater deaerator system.

[0007] The main feedwater system interface operation module is used for displaying the field devices of the main feedwater system and displaying the intermediate variables in the main feedwater system.

[0008] The turbine bypass discharge system interface operation module is used for displaying the field devices of the turbine bypass discharge system and displaying the intermediate variables in the turbine bypass discharge system.

[0009] The core margin calculation system operation interface linking module is used for outputting the core margin calculation system picture link.

[0010] The chemical volume control system interface operation module is used for displaying field devices of the chemical volume control system and displaying intermediate variables in the chemical volume control system.

[0011] The boron and water supply system interface operation module is used for displaying field devices of the boron and water supply system and displaying intermediate variables in the boron and water supply system.

[0012] In the nuclear power plant DCS control system, the control rod control system interface operation module comprises a control rod G rod control interface operation module; and the intermediate variables in the control rod control system comprise different required rod positions and powers of the control rod G rods, and rod position setting values and turbine power setting values input by an operator.

[0013] The control rod G rod control interface operation module comprises a G rod required rod position display unit and a manual calculation input unit.

[0014] The G rod required rod position display unit is used for displaying the different required rod positions and powers of the control rod G rods and selected display.

[0015] The manual calculation input unit is used for providing a manually input calculation value and displaying the calculation value input by the operator.

[0016] In the nuclear power plant DCS control system, the manual calculation input unit comprises a turbine power control, a rod position control, a G rod rod position setting value display module and a turbine power setting value display module.

[0017] The turbine power control is used for enabling the operator to perform a manual input turbine power operation.

[0018] The rod position control is used for enabling the operator to perform a manual input rod position operation.

[0019] The G rod rod position setting value display module is used for displaying the rod position setting value input by the operator.

[0020] The turbine power setting value display module is used for displaying the turbine power setting value input by the operator.

[0021] In the nuclear power plant DCS control system, the control rod control system interface operation module further comprises a temperature control rod control interface operation module and a control rod power rod control interface operation module; and the intermediate variables in the control rod control system further comprise a temperature preset value formed according to a secondary loop and a reactor subcooling signal.

[0022] The temperature control rod control interface operation module comprises a temperature preset value display module.

[0023] The control rod power rod control interface operation module comprises a reactor supercooling signal indication module;

[0024] The temperature preset value display module is configured to output and display the temperature preset value formed according to the secondary circuit power;

[0025] The reactor supercooling signal indication module is configured to trigger and indicate the reactor supercooling signal.

[0026] In the nuclear power plant DCS control system, the control rod control system interface operation module further comprises a final power setting value calculation screen operation module; and the intermediate variables in the control rod control system further comprise a final power setting value.

[0027] The final power setting value calculation screen operation module comprises a final power setting value display module.

[0028] The final power setting value display module is configured to output and display the final power setting value.

[0029] In the nuclear power plant DCS control system, the feedwater deaerator system interface operation module comprises a deaerator pressure change rate display module and a pressure maintenance logic signal indication module; and the intermediate variables in the feedwater deaerator system comprise a deaerator pressure change rate.

[0030] The deaerator pressure change rate display module is configured to display the deaerator pressure change rate in real time.

[0031] The pressure maintenance logic signal indication module is configured to trigger and indicate based on the pressure maintenance logic signal.

[0032] In the nuclear power plant DCS control system, the main feedwater system interface operation module comprises a water level control signal switching logic indication module; and the intermediate variables in the main feedwater system comprise a signal switching indication signal.

[0033] The water level control signal switching logic indication module is configured to generate the signal switching indication signal according to the logic of signal switching.

[0034] In the nuclear power plant DCS control system, the turbine bypass discharge system interface operation module comprises a switching switch position indication module and an upstream input display module; and the intermediate variables in the turbine bypass discharge system comprise an upstream input display value.

[0035] The upstream input display module is configured to display the upstream input display value.

[0036] The switching switch position indication module is configured to indicate the position of the switching switch according to the real-time position of the switching switch.

[0037] In the nuclear power plant DCS control system, the core margin calculation system operation interface linking module comprises a first linking control provided on a primary coolant system operation interface and a second linking control provided on a R-rod control screen of a control rod control system;

[0038] The first linking control is used to switch to a core margin calculation system screen according to a triggering operation of an operator;

[0039] The second linking control is used to switch to a core margin calculation system screen according to a triggering operation of an operator.

[0040] In the nuclear power plant DCS control system, the chemical volume control system interface operation module comprises a pressurizer water level measured value display module; and the intermediate variable in the chemical volume control system comprises a pressurizer water level measured value;

[0041] The boron and water supply system interface operation module comprises a first display module, a second display module and a third display module; and the intermediate variable in the boron and water supply system comprises an automatic boron concentration calculation value, a primary loop boron concentration measured value and a primary loop oxygen content;

[0042] The pressurizer water level measured value display module is used to output and display the pressurizer water level measured value;

[0043] The first display module is used to output and display the automatic boron concentration calculation value;

[0044] The second display module is used to output and display the primary loop boron concentration measured value;

[0045] The third display module is used to output and display the primary loop oxygen content.

[0046] The nuclear power plant DCS control system of the present application has the following beneficial effects: including a signal acquisition unit and a main control room operation platform, the main control room operation platform including a control rod control system interface operation module for displaying intermediate variables of the control rod control system; a feedwater deaerator system interface operation module for displaying intermediate variables of the feedwater deaerator system; a main feedwater system interface operation module for displaying intermediate variables of the main feedwater system; a steam turbine bypass discharge system interface operation module for displaying intermediate variables of the steam turbine bypass discharge system; an output linked core margin calculation system operation interface linking module; a chemical volume control system interface operation module for displaying intermediate variables of the chemical volume control system; and a boron and water supply system interface operation module for displaying intermediate variables of the boron and water supply system. The present application can assist operators in making judgments and interventions in advance by increasing the display of intermediate variables, and can more intuitively master the system state and reduce human error. BRIEF DESCRIPTION OF DRAWINGS

[0047] The present application will be further described below in conjunction with the drawings and examples, in which:

[0048] Figure 1 is a principle block diagram of the nuclear power plant DCS control system provided by the present application;

[0049] Figure 2 is an operation interface schematic diagram of the control rod G rod control interface operation module provided by the present application;

[0050] Figure 3 is an operation interface schematic diagram of the feedwater deaerator system interface operation module provided by the present application;

[0051] Figure 4 is an operation interface schematic diagram of the main feedwater system interface operation module provided by the present application;

[0052] Figure 5 is an operation interface schematic diagram of the discharge valve control screen of the steam turbine bypass discharge system provided by the present application;

[0053] Figure 6 is a core margin calculation system screen linking schematic diagram provided by the present application;

[0054] Figure 7 is an operation interface schematic diagram of the chemical volume control system interface operation module provided by the present application;

[0055] Figure 8 is an operation interface schematic diagram of the boron and water supply system interface operation module provided by the present application;

[0056] Figure 9 is an operation interface schematic diagram of the temperature control rod control interface operation module provided by the present application;

[0057] Figure 10 is the operation interface diagram of the final power setting value calculation picture operation module provided by the application. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0059] Reference Figure 1 , Figure 1 The application provides a principle block diagram of a nuclear power plant DCS control system.

[0060] As shown in the figure, the nuclear power plant DCS control system comprises a signal acquisition unit and a main control room operation platform connected with the signal acquisition unit. The signal acquisition unit is mainly used for acquiring the state, information and signal of field equipment, and transmitting the corresponding signal to the main control room operation platform. The signal acquisition unit can comprise various sensors and detection instruments installed in the field. The main control room operation platform is mainly used for displaying the field equipment and logic of the nuclear power plant DCS control system, and for the operator to perform relevant operation when necessary to achieve the purpose of human intervention. Figure 1 Specifically, as shown in the figure, the main control room operation platform comprises a control rod control system interface operation module, a feed water deaerator system interface operation module, a main feed water system interface operation module, a steam turbine bypass discharge system interface operation module, a core margin calculation system operation interface linking module, a chemical volume control system interface operation module and a boron and water supply system interface operation module.

[0061] Figure 1

[0062] ​​The control rod control system interface operation module is used for displaying field devices of the control rod control system and displaying intermediate variables in the control rod control system; the feedwater deaerator system interface operation module is used for displaying field devices of the feedwater deaerator system and displaying intermediate variables in the feedwater deaerator system; the main feedwater system interface operation module is used for displaying field devices of the main feedwater system and displaying intermediate variables in the main feedwater system; the turbine bypass discharge system interface operation module is used for displaying field devices of the turbine bypass discharge system and displaying intermediate variables in the turbine bypass discharge system; the core margin calculation system operation interface linking module is used for outputting a core margin calculation system picture link; the chemical volume control system interface operation module is used for displaying field devices of the chemical volume control system and displaying intermediate variables in the chemical volume control system; and the boron and water makeup system interface operation module is used for displaying field devices of the boron and water makeup system and displaying intermediate variables in the boron and water makeup system.

[0063] In the embodiment, the functions of the corresponding operation modules are optimized on the original main control operation platform to increase the display of the corresponding intermediate variables, which can assist the operator in judging the state of the control system, reduce human errors caused by uncertain subjective factors, and help the operator to more intuitively master the state of the system.

[0064] Specifically, in the embodiment, the control rod control system interface operation module comprises a control rod G rod control interface operation module. The intermediate variables in the control rod control system comprise different required rod positions and powers of the control rod G rod, and rod position setting values and turbine power setting values input by the operator.

[0065] The control rod G rod control interface operation module comprises a G rod required rod position display unit and a manual calculation input unit. The G rod required rod position display unit is used for rod position and power display and selected display of different required rod positions of the control rod G rod. The manual calculation input unit is used for providing manual input calculation values and displaying the calculation values input by the operator.

[0066] In the embodiment, the manual calculation input unit comprises a turbine power control, a rod position control, a G rod rod position setting value display module, and a turbine power setting value display module. The turbine power control is used for the operator to perform manual input turbine power operation. The rod position control is used for the operator to perform manual input rod position operation. The G rod rod position setting value display module is used for displaying the rod position setting values input by the operator. The turbine power setting value display module is used for displaying the turbine power setting values input by the operator.

[0067] Specifically, as shown in FIG. 1, the control rod control system interface operation module comprises a control rod G rod control interface operation module. Figure 2As shown, it is an operation interface schematic diagram of the control rod G rod control interface operation module (i.e. the operation interface schematic diagram of RGL004YFU). In this embodiment, for the 4-way electric power (i.e. 82, 76, 78, 74) signal, the correction factor is superimposed, the different demand rod positions are displayed through the G9 curve (i.e. the power setting value to rod position setting value control curve), when the way is selected, the bottom color of the way is displayed as green, the purpose of selection display is achieved, so that the operator can quickly and directly determine which way is currently selected. In addition, the present application can provide the operator with manual input of the rod position setting value and the steam turbine power setting value calculated according to the G9 curve through the addition of the manual calculation input unit (i.e. RGL100KU / 101KU).

[0068] Specifically, as shown in the figure, Figure 2 A1, A2 and A3 are G rod demand rod position display units for displaying different rod positions, wherein A2 has been selected, so that the bottom color is switched to green. X1 is a manual calculation input unit, when the operator clicks the steam turbine power control in the manual calculation input unit, the operator can input the corresponding G rod setting value (i.e. 400 step in Figure 2 When the operator clicks the rod position control in the manual calculation input unit, the corresponding electric power setting value (i.e. -164 MW in Figure 2 ) can be input.

[0069] The present application can quickly determine the demand rod position of the current G rod by displaying different rod positions, especially when the unit state changes rapidly, the G rod setting may not be able to respond to the unit state in time, the present application can predict the demand change of the G rod in advance, and conservatively select whether to set the G rod to manual to solve the problem of unsuitability; if the electric power display is abnormal, the corresponding demand rod position of the current actual G9 curve can be quickly confirmed.

[0070] When the unit state changes rapidly like a pump unit, the unit may switch between steam flow limitation, pressure limitation and normal G rod demand input, based on the present application, the operator can quickly determine the input signal of the current G rod demand rod position and the demand rod position of different signals, so as to ensure that the operation value can quickly determine, quickly intervene and predict the G rod rod position change and perform demand without switching.

[0071] In addition, the present application can help the operation value to more accurately obtain the G rod rod position corresponding to the current electric power when the electric power measurement is abnormal and other manual judgment of the current actual electric power corresponding to the G rod rod position is required, so as to prevent violation of the technical specification requirements.

[0072] In the embodiment, the feedwater deaerator system interface operation module includes: a deaerator pressure change rate display module and a pressure maintaining logic signal indication module; and the intermediate variables in the feedwater deaerator system include: a deaerator pressure change rate.

[0073] The deaerator pressure change rate display module is configured to display the deaerator pressure change rate in real time; and the pressure maintaining logic signal indication module is configured to perform trigger indication based on the pressure maintaining logic signal.

[0074] Specifically, as shown in Figure 3 , it is an operation interface schematic diagram of the feedwater deaerator system interface operation module (i.e., the operation interface schematic diagram of the ADG001YCD). In the embodiment, by adding the ADG pressure change rate (i.e., the output value of the ADG001GD (deaerator pressure change rate)) beside the ADG003VV (a valve for controlling the new steam injection flow) in the ADG001YCD screen and adding the corresponding KS lamp, the purpose of real-time, intuitive and rapid determination of the ADG pressure change rate is achieved. Meanwhile, by the KS lamp, it can be accurately determined whether the pressure maintaining logic signal is triggered.

[0075] Specifically, the KS lamp is the pressure maintaining logic signal indication module, as indicated by the cabinet-shaped box in Figure 3 . When the pressure maintaining logic signal is triggered, the KS lamp is on (generally filled with green color). When the value is less than -0.25 MP / MIN, the lamp is on, and when the value is greater than -0.05 MP / MIN, the lamp is off. As shown in Figure 3 , the display module in the oval circle is the deaerator pressure change rate display module, which is configured to display the deaerator pressure change rate in real time.

[0076] By setting the deaerator pressure change rate display module and the pressure maintaining logic signal indication module, when the load rejection causes the ADG003VV to be opened, the operator can quickly determine the reason for the opening of the ADG003VV, and the operator can take necessary intervention subsequently.

[0077] In the embodiment, the main feedwater system interface operation module includes: a water level control signal switching logic indication module; and the intermediate variables in the main feedwater system include: a signal switching indication signal. The water level control signal switching logic indication module is configured to generate the signal switching indication signal according to the logic of signal switching.

[0078] Specifically, in the ARE (main feedwater system) all water level control (1 / 2 ARE002-004YFU (steam generator water level control screen), 3-6 ARE005-007YFU) screen, for the logic involving signal switching, the KS display (i.e., the water level control signal switching logic indication module) is added. When 1 and 2 are selected, the corresponding KS indication lamp is on. As shown in Figure 4 ,Figure 4 is taken as an example for illustration.

[0079] As shown in the figure, the switching switch in the three circles is provided with a corresponding indicator lamp, when 1 is selected, the indicator lamp corresponding to 1 is bright (set as green light), when 2 is selected, the indicator lamp corresponding to 2 is bright (set as white light). Figure 4

[0080] By setting the water level control signal switching logic indication module, when the steam generator water level is diagnosed and intervened, the current signal input participating in the water level control can be directly displayed, the time for the operator to judge is reduced, and the operator is facilitated to control and diagnose the steam generator water level.

[0081] In the embodiment, the turbine bypass discharge system interface operation module comprises a switching switch position indication module and an upstream input display module; the intermediate variable in the turbine bypass discharge system comprises an upstream input display value; the upstream input display module is used for displaying the upstream input display value; and the switching switch position indication module is used for position indication according to the real-time position of the switching switch.

[0082] Specifically, as shown in the figure, the present application increases the switching switch position display in the GCT004YFU picture (turbine bypass discharge system discharge valve control picture), and the specific position is shown in the circle in the figure. Figure 5 As shown in the figure, the KS indicator lamp is additionally arranged on the 404XR, and the upstream input display module (namely, GCT401KM data display (upstream input display for steam generator water level control)) is additionally arranged, wherein when the switching switch (404XR) is switched to 1, the green lamp corresponding to 1 is bright; when the switching switch (404XR) is switched to 2, the white lamp corresponding to 2 is bright. Figure 5 Figure 5 When switched to 1, it is “T signal” input; when switched to 2, it is “P signal” input. The P signal represents a pressure control mode signal; and the T signal represents a temperature control mode signal.

[0083] ​​Through the GCTc control screen displaying the KS and display value in different modes, the operator can visually confirm the "T signal" input and "P signal" input (P signal: pressure control mode signal; T signal: temperature control mode signal), which helps the operator to perform T / P mode switching operation; the GCT401KM data (upstream input display for steam generator water level control) sent to the ARE005YFU is displayed, so that it can be more clearly known that the GCTc signal (when the signal takes effect, the steam turbine bypass system will discharge steam to the condenser) participates in water level control 0 or GCT401KM (upstream input display for steam generator water level control) demand value at this time.

[0084] In the embodiment, the core margin calculation system operation interface linking module includes a first linking control provided in the primary coolant system operation interface and a second linking control provided in the R-rod control screen of the control rod control system. The first linking control is used to switch to the core margin calculation system screen according to the triggering operation of the operator, and the second linking control is used to switch to the core margin calculation system screen according to the triggering operation of the operator.

[0085] Specifically, as shown in the figure, Figure 6 The upper circle in the figure is the first linking control, and the lower circle is the second linking control. Figure 6

[0086] Based on the feedback of the 2RCP050MT card (thermal resistance input card) fault experience of a certain nuclear power plant, when the CE type AI input card (thermal resistance input card) of the RCP050MT fails, the corresponding screen cannot be found due to time urgency or operator memory, and the first linking control and the second linking control are added to help the operator quickly link to the LSS display screen to check whether the related parameters are normal.

[0087] In the embodiment, the chemical volume control system interface operation module includes a pressurizer water level measured value display module, and the intermediate variable in the chemical volume control system includes a pressurizer water level measured value. The pressurizer water level measured value display module is used to output and display the pressurizer water level measured value.

[0088] Specifically, as shown in the figure, Figure 7 ​As shown, on the RCV001YCD (chemical volume control system picture), the RCP430KM (upstream input signal for regulating vessel water level control) is displayed as a percentage, while the measured value of the regulating vessel water level controlled and protected on the picture is displayed in units of m, and the operator needs to manually convert and calculate according to the formula, thus an instrument for displaying the value in units of m (i.e., a regulating vessel water level measured value display module) is added. By adding the regulating vessel water level measured value display module, the regulating vessel water level control on the RCV001YCD can be facilitated.

[0089] In this embodiment, the boron and water supply system interface operation module includes a first display module, a second display module and a third display module; the intermediate variables in the boron and water supply system include an automatic boron concentration calculation value, a primary loop boron concentration measured value and a primary loop oxygen content. The first display module is configured to output and display the automatic boron concentration calculation value; the second display module is configured to output and display the primary loop boron concentration measured value; and the third display module is configured to output and display the primary loop oxygen content.

[0090] Specifically, in the simulation diagram P08 of the REA system (boron and water supply system), the CBA (automatic boron concentration calculation) calculation value is not output and displayed, and based on this, the present application adds a red box flashing prompt on the REA1C (REA001YCD boron and water supply system picture) when the difference between CBA and REN012MG is greater than 20ppm. At the same time, the REA012MG (primary loop boron concentration measured value) display and the REN101MG (primary loop oxygen content) display are added to facilitate tracking of oxygen content changes. Specifically, as shown by the circle in Figure 8 REN012MG, CBA and REN101MG can be displayed.

[0091] The present application can improve the speed of analyzing and judging the fault reason of the supply loop by real-time display of the output value of the intermediate function, realize monitoring of important process quantities of the control loop, and realize rapid collection of process information by the operator.

[0092] In this embodiment, the control rod control system interface operation module further includes a temperature control rod control interface operation module and a control rod power rod control interface operation module; and the intermediate variables in the control rod control system further include a temperature preset value formed according to a secondary loop and a reactor subcooling signal.

[0093] The temperature control rod control interface operation module includes a temperature preset value display module; the control rod power rod control interface operation module includes a reactor subcooling signal indication module; the temperature preset value display module is configured to output and display the temperature preset value formed according to the secondary loop power; and the reactor subcooling signal indication module is configured to trigger and indicate the reactor subcooling signal.

[0094] In the embodiment, RGL002FYU picture (R stick, i.e. temperature stick control picture) is added with RGL407GD (temperature preset value formed according to two-loop power) and RGL401ZO output value (one-loop supercooling signal output); meanwhile, KS lamp is added on the right side of MemoryC22 in RGL4C (power stick control picture of control stick control system) to indicate that C22 signal is triggered. Figure 9 Figure 9 The temperature preset values of 3.3℃ and 2.6℃ in the two circles are the temperature preset values displayed by the temperature preset value display module, Figure 9 When the KS lamp is on, it can be determined that C22 signal is triggered.

[0095] C22 memory signal is integrated into RGL004YCD (power stick control picture of control stick control system) to prevent G stick from being automatically controlled due to the memory signal, which affects the rapid intervention of the unit. Currently, C22 memory signal is in a special picture instead of a commonly used monitoring picture, so that the operator cannot quickly find the abnormality. Since the threshold of C22 is a function of load change, the operator cannot confirm the risk of triggering C22 of the current unit in real time. The real-time display of 407GD or 401ZO output value can help the operator quickly judge the risk of C22 signal.

[0096] In the embodiment, the control stick control system interface operation module further comprises: a final power setting value calculation picture operation module; and the intermediate variable in the control stick control system further comprises: a final power setting value. The final power setting value calculation picture operation module comprises: a final power setting value display module; and the final power setting value display module is used for outputting and displaying the final power setting value.

[0097] In the embodiment, FPS (final power setting value) upstream input value is added in RGL003YFU picture (i.e. final power setting value calculation picture operation module). The FPS upstream input value is the value displayed in the two circles in Figure 10

[0098] In the embodiment, the output display of the final power setting value of the current unit can help the operator quickly judge the accuracy of the final power setting value in transient state, and reduce the risk of operation error caused by incorrect judgment of the operator, which affects the transient control of the unit.

[0099] Whether the final power display in transient state or the reference of one-loop and two-loop load matching in daily intervention process needs the operator to judge the relationship between the current GCTc pressure setting value and the load. Therefore, the output display of the final power setting value can help the operator to operate more finely.​​

[0100] The various embodiments described in the specification are progressive in nature, and each embodiment highlights the differences from other embodiments. The same or similar parts between the embodiments can be mutually referred to. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method part.

[0101] Those skilled in the art will further appreciate that the individual steps of the example methods and algorithms described in connection with the embodiments disclosed herein can be embodied directly in hardware, in software, or in combinations of the two. To the extent that the above- described methods and algorithms are implemented directly in hardware, the disclosure lies in the logical arrangement and structure of the hardware, and the resulting device performance. To the extent that the above-described methods and algorithms are implemented in software, the disclosure lies in the software structure and the logical arrangement of the software code, and the resulting device performance. The software code can be stored in any type of non- transitory computer-readable medium or memory, for example, random access memory (RAM), a hard disk drive, a floppy diskette, a system or secure microcontroller, or any other suitable memory device.

[0102] The steps of a method or algorithm described in connection with the embodiments disclosed herein can be embodied directly in hardware, in software, or in combinations of the two. The software code can be stored in any type of non-transitory computer-readable medium or memory, for example, random access memory (RAM), a hard disk drive, a floppy diskette, a system or secure microcontroller, or any other suitable memory device.

[0103] The above embodiments are only for illustrating the technical concepts and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it accordingly, and cannot limit the protection scope of the present application. Any equivalent changes and modifications made within the scope of the claims of the present application shall be within the scope of the claims of the present application.

Claims

1. A nuclear power plant DCS control system characterized by, The utility model relates to a kind of nuclear power plant control room operation platform, including: Signal acquisition unit and the main control room operating platform connected with the signal acquisition unit, the main control room operating platform includes: control rod control system interface operation module, feedwater deaerator system interface operation module, main feedwater system interface operation module, steam turbine bypass discharge system interface operation module, reactor core margin calculation system operation interface linking module, chemical volume control system interface operation module and boron and water supply system interface operation module; The control rod control system interface operation module is used for displaying the field devices of the control rod control system and displaying the intermediate variables in the control rod control system; The feedwater deaerator system interface operation module is used for displaying the field devices of the feedwater deaerator system and displaying the intermediate variables in the feedwater deaerator system; The main feedwater system interface operation module is used for displaying the field devices of the main feedwater system and displaying the intermediate variables in the main feedwater system; The steam turbine bypass discharge system interface operation module is used for displaying the field devices of the steam turbine bypass discharge system and displaying the intermediate variables in the steam turbine bypass discharge system; The reactor core margin calculation system operation interface linking module is used for outputting the reactor core margin calculation system screen link; The chemical volume control system interface operation module is used for displaying the field devices of the chemical volume control system and displaying the intermediate variables in the chemical volume control system; The boron and water supply system interface operation module is used for displaying the field devices of the boron and water supply system and displaying the intermediate variables in the boron and water supply system.

2. The nuclear power plant DCS control system in accordance with claim 1, wherein, The control rod control system interface operation module includes: control rod G rod control interface operation module;The intermediate variables in the control rod control system include: different demand rod positions and powers of control rod G rods, and rod position setting values and turbine power setting values input by operators; The control rod G rod control interface operation module includes: G rod demand rod position display unit and manual calculation input unit; The G rod demand rod position display unit is used for rod position and power display and selected display of different demand rod positions of the control rod G rods;The selected display is that when the road is selected as the demand rod position of the control rod G rods, the bottom color is displayed as green; The manual calculation input unit is used for providing manual input calculation values and displaying the calculation values input by operators.

3. The nuclear power plant DCS control system in accordance with claim 2, wherein, The manual calculation input unit includes: turbine power control, rod position control, G rod rod position setting value display module and turbine power setting value display module; The turbine power control is used for operators to perform manual input turbine power operation; The rod position control is used for operators to perform manual input rod position operation; The G rod rod position setting value display module is used for displaying the rod position setting values input by operators; The turbine power setting value display module is used for displaying the turbine power setting values input by operators.

4. The nuclear power plant DCS control system in accordance with claim 1, wherein, The control rod control system interface operation module further comprises: a temperature control rod control interface operation module and a control rod power rod control interface operation module; the intermediate variable in the control rod control system further comprises: a temperature preset value formed according to a secondary circuit and a reactor supercooling signal; The temperature control rod control interface operation module comprises: a temperature preset value display module; The control rod power rod control interface operation module comprises: a reactor supercooling signal indication module; The temperature preset value display module is used for outputting and displaying the temperature preset value formed according to the secondary circuit power; The reactor supercooling signal indication module is used for triggering and indicating the reactor supercooling signal.

5. The nuclear power plant DCS control system in accordance with claim 1, wherein, The control rod control system interface operation module further comprises: a final power setting value calculation picture operation module; the intermediate variable in the control rod control system further comprises: a final power setting value; The final power setting value calculation picture operation module comprises: a final power setting value display module; The final power setting value display module is used for outputting and displaying the final power setting value.

6. The nuclear power plant DCS control system in accordance with claim 1, wherein, The feedwater deaerator system interface operation module comprises: a deaerator pressure change rate display module and a pressure maintaining logic signal indication module; the intermediate variable in the feedwater deaerator system comprises: a deaerator pressure change rate; The deaerator pressure change rate display module is used for displaying the deaerator pressure change rate in real time; The pressure maintaining logic signal indication module is used for triggering and indicating based on the pressure maintaining logic signal.

7. The nuclear power plant DCS control system in accordance with claim 1 wherein, The main feedwater system interface operation module comprises: a water level control signal switching logic indication module; the intermediate variable in the main feedwater system comprises: a signal switching indication signal; The water level control signal switching logic indication module is used for generating the signal switching indication signal according to the logic of signal switching.

8. The nuclear power plant DCS control system in accordance with claim 1, wherein, The steam turbine bypass discharge system interface operation module comprises: a switching switch position indication module and an upstream input display module; the intermediate variable in the steam turbine bypass discharge system comprises: an upstream input display value; The upstream input display module is used for displaying the upstream input display value; The switching switch position indication module is used for position indication according to the real-time position of the switching switch.

9. The nuclear power plant DCS control system in accordance with claim 1, wherein, The core margin calculation system operation interface linking module comprises: a first linking control arranged in a primary coolant system operation interface and a second linking control arranged in a control rod control system R rod control picture; The first linking control is used for switching to a core margin calculation system picture according to the triggering operation of an operator; The second linking control is used for switching to a core margin calculation system picture according to the triggering operation of an operator.

10. The nuclear power plant DCS control system in accordance with claim 1, wherein, The chemical volume control system interface operation module comprises: a pressurizer water level measured value display module; the intermediate variable in the chemical volume control system comprises: a pressurizer water level measured value; The boron and water supply system interface operation module comprises: a first display module, a second display module and a third display module; the intermediate variable in the boron and water supply system comprises: an automatic boron concentration calculation value, a primary circuit boron concentration measured value and a primary circuit oxygen content; The water level measured value display module is used for outputting and displaying the water level measured value of the stabilizer. The first display module is used for outputting and displaying the automatic boron concentration calculated value. The second display module is used for outputting and displaying the one-loop boron concentration measured value. The third display module is used for outputting and displaying the one-loop oxygen content.

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