CN203659446U

CN203659446U - Portable full-plant DCS debugging device for nuclear power plant

Info

Publication number: CN203659446U
Application number: CN201320889390.3U
Authority: CN
Inventors: 林旭升; 张绪怡; 刘伟; 单福昌; 王雪峰
Original assignee: Research Institute of Nuclear Power Operation; China Nuclear Power Operation Technology Corp Ltd
Current assignee: Research Institute of Nuclear Power Operation; China Nuclear Power Operation Technology Corp Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-06-18
Anticipated expiration: 2023-12-31

Abstract

The utility model belongs to the technical field of nuclear power DCS debugging, and specifically relates to a portable full-plant DCS debugging device for a nuclear power plant and a debugging method. The device comprises a simulation model host, an I/O interface system and a housing. The simulation model host operates simulation models and an IO mapping system. The simulation models include physical system models controlled by a DCS in the nuclear power station and models of the DCS itself. By using the IO mapping system, parameters of the simulation models are corresponding to input and output signals of the I/O interface system. The I/O interface system comprises an I/O interface module, a TA module used to connect the I/O interface module with the real DCS, and a communication module used for the communication between the simulation model host and the I/O interface module. The TA module is of a cable structure. The I/O interface module and the communication module are fixed on the housing. The portable full-plant DCS debugging device for the nuclear power plant is capable of remedying a defect that a conventional manner fails to simulate closed loop control, so that the logic correctness of the DCS is fully verified.

Description

The DCS of full factory of nuclear power plant Portable debugging device

Technical field

The utility model belongs to nuclear power DCS debugging technique field.

Background technology

In nuclear power station operational system, nuclear power DCS(digital control system, digital control system) be the control section of whole service system, belong to core technology, its performance is directly connected to nuclear power station operational efficiency, and its stability, fault-tolerance are directly connected to the use safety of nuclear power station.Before nuclear power station comes into operation, must DCS comprehensively be debugged and be tested.In prior art, use material object to debug, need to make the controlled device of DCS and DCS to move simultaneously, thus, need to expend a large amount of goods and materials, time, easily cause the damage of equipment; Meanwhile, due to the limitation of object test, be difficult to the DCS duty of test to extreme case, for example: the DCS duty while being difficult to test to controlled device fault.

US Westinghouse company has developed a set of DCS debugging apparatus based on emulation technology in last century end, for development, the test of AP1000 nuclear power generating sets instrument control system.But this equipment is only for the debugging of DCS R&D process, can not be applied to the nuclear power generating sets instrument control system after installation in position, in cannot debugging at the scene, use.

Utility model content

The utility model object is to provide the DCS of full factory of nuclear power plant Portable debugging device, improves the speed of debugging, for the debug-item that need repeat or system complexity is high, and the shortening time, improve debugging quality, meet the demand that shortens the DCS engineering debug time.

The utility model is so to realize:

A kind of DCS of full factory of nuclear power plant Portable debugging device, wherein, comprising: realistic model main frame, I/O interface system, shell;

Realistic model main frame operation realistic model and IO mapped system, realistic model comprises the system model in kind controlled by DCS in nuclear power station and the model of DCS self, IO mapped system is corresponding with the input/output signal of I/O interface system by the parameter of realistic model;

I/O interface system comprises: I/O interface module, the TA module that I/O interface module is connected with true DCS, the communication module that realistic model main frame and I/O interface module are communicated; TA module is cable structure;

I/O interface module, communication module are fixed on shell.

The DCS of full factory of a kind of nuclear power plant Portable debugging device as above, wherein, in described I/O interface module, comprising: DI module, DO module, AI module, AO module; Described TA module one end is many wiring that are connected with I/O interface module, and the other end is the connector being connected with true DCS.

The portable adjustment method of a kind of full DCS of factory of nuclear power plant, wherein, is used the DCS of full factory of nuclear power plant as claimed in claim 1 Portable debugging device, comprises the steps:

Step 1, set up the corresponding relation of I/O interface module and tested DCS object signal;

Step 2, according to corresponding relation wiring; Connect DCS rack I/O point and described debugging apparatus I/O point;

Step 3, operation debugging; Comprise the steps:

1) start realistic model main frame, move each realistic model;

2) determine DCS system state in kind;

In the time that the emulation DCS system output state on DCS system output state in kind and realistic model main frame is inconsistent, being judged to be DCS system in kind need to adjust; Then, adjust for DCS system in kind, be adjusted into consistent with emulation DCS system output state;

In the time that DCS system state in kind is consistent with emulation DCS system state on realistic model main frame, is judged to be DCS system in kind and can carries out debugging work;

Then, carry out following steps:

3) the realistic model input and output of control object are switched to DCS system in kind;

4) the system model described in kind operation on realistic model main frame is changed to described system model operating mode in kind DCS operation interface in kind is long-range, then record DCS system responses state in kind.

The nuclear power plant described in the utility model DCS of full factory Portable debugging device has with respect to the advantage of traditional debugging method:

● traditional debugging mode can be made up and cannot, to the defect of closed-loop control simulation, the correctness of DCS logic can be verified fully.

● can repeatedly test fast problematic system, effectively reduce testing cost, not be subject to the restriction of field apparatus time window.

● before doing some risky tests, before connection physical device, adopt this device to carry out l-G simulation test, can reduce to greatest extent risk of equipment damage.

● at the scene in actual case, because debugging apparatus described in the utility model can record each road signal value, so can also play the object of coarse adjustment pid parameter for the debugging of the system of closed loop adjustment, can shorten debug time; System is more complicated, and debugging apparatus advantage is larger.

For example: for the main feedwater flow regulation of ARE() system, is used apparatus and method described in the utility model, and in the situation that having chosen 50 testing sites, the time of finishing whole debugging code is a working day.If use the adjustment method of prior art, need 3 to 4 working days, also cannot verify the pid parameter of DCS system in kind simultaneously.

Brief description of the drawings

The DCS of full factory of Tu1Shi nuclear power plant Portable debugging device structured flowchart.

Fig. 2 is the on-the-spot schematic diagram that uses of debugging apparatus.

Fig. 3 is debugging apparatus inner structure schematic three dimensional views.

Fig. 4 is debugging interface configurations and management software structure.

Wherein, AW: communication server; KIC: human-machine operation terminal.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described further.

As shown in Figure 1, the DCS of full factory of nuclear power plant described in the utility model Portable debugging device comprises:

(1) realistic model main frame, be responsible for:

● operation realistic model; Each system in kind in simulated core power station, i.e. the control object of DCS;

● the data communication between I/O data acquisition module;

● operation debugging Engineering Control platform software, control for DCS debug process;

● configuration debugging starting condition and operation communication are shone upon with IOMAP(IO) software, the data allocations obtaining by I/O data acquisition module is given each realistic model by this software, and the data that simultaneously each realistic model computing obtained are exported by I/O data acquisition module;

In the present embodiment, on realistic model main frame, be also provided with the realistic model of DCS control system self.On realistic model main frame, can whole control system and the control objects of closed-loop simulation.

(2) I/O interface system:

● the acquisition module (DI, DO, AI, AO) that comprises common data type;

● connect realistic model main frame and DCS, the interface data of each realistic model moving on realistic model main frame is outputed to real DCS, the control signal of true DCS is outputed to realistic model main frame;

(3) light, solid shell, is convenient to mobile simultaneously at the scene.

In the present embodiment, adopt and grind magnificent APAX series data collecting device and carry out the design of I/O interface system.

Whole input/output interface module is arranged in debugging apparatus inside, adopts compact, distributed, modular structure.In the equipment in kind that the full nuclear power plant described in the utility model DCS of factory Portable debugging device is accessed to nuclear power plant time, obtain system as shown in Figure 2.

In this project, whole data operations is all in realistic model main frame, the task of I/O system is only to gather DCS signal, so do not adopt traditional processor to add the framework of I/O module, but as shown in Figure 1, adopt the framework of TA module (hub module) and I/O module, TA module is hub module, when the DCS system wiring of nuclear power station, employing connector is realized, and described debugging apparatus is in order to be applicable to full nuclear power plant system, adopt the mode of connection of terminal strip, therefore, in the time realizing the wiring of debugging apparatus and DCS system, need to be between terminal strip and plug, it is many bare wires that one end is installed, the other end is the cable of connector, be TA(terminal assembly) module.

In addition,, in order to complete communicating by letter of realistic model main frame and I/O module, described debugging apparatus also comprises and grinds magnificent APAX-5070 communication module.

This communication module can periodically gather the real-time information of I/O module, and by I/O property information cycle be uploaded to realistic model main frame by Ethernet, server sends signal after treatment to communication module by Ethernet again and controls output module output, completes the real-time control to field control object.APAX-5070 is connected by Ethernet with other equipment, can connect at most 32 I/O modules, meets the demand of field adjustable.The communications protocol of APAX-5070 is Modbus TCP, if there will be from now on more outstanding I/O scheme.Can change flexibly, and data communication module does not need to change, or only need to do a little change and just can continue to use, reduce the workload of system update in the future.

AI module is selected APAX-5017H, and this simulating signal load module is the multirange voltage/current signals load module of high speed 12 passages, can realize the Quick Measurement of multiple range signal, and sampling rate is up to 1000 samples/sec.APAX-5017 can measure 0～10V, ± 10V, and the voltage signal within the scope of 0～500mV and 0～20mA, the current signal within the scope of 4～20mA, each passage can be set different ranges, realizes high-acruracy survey.Its performance index are in table 1:

Table 1:APAX-5017H module performance index

AO module is selected APAX-5028, and this module is 8 channel currents or voltage signal output module, can export (0～20) mA, (4～20) mA, ± 2.5V, ± 5V, ± 10V, (0～2.5mV), (0～5V), the simulating signal of (0～10V) eight kinds of ranges.Its performance index are in table 2:

Table 2:APAX-5028 module performance index

DI module is selected APAX-5040, and this module can gather 24 railway digital amount signals, band LED demonstration, and input voltage maximum reaches 30V.Its performance index are in table 3:

Table 3:APAX-5040 module performance index

DO module is selected APAX-5060, and this module can be exported 12 channel digital signals, and band LED shows.Its performance index are in table 4:

Table 4:APAX-5060 module performance index

Module model	APAX-5060
		Passage	12 tunnels
Power consumption	2.5W
		Output type	Relay
Output voltage	250VAC，30VDC
		Output current	5A

According to the statistics of on-the-spot all kinds actual signal kind, we are 148 points for the I/O of each debugging apparatus standard configuration counts, and its measuring point type and configuration quantity are in table 5:

Table 5: the measuring point type of little case standard configuration and configuration quantity

Measuring point type	Fastener number	Configuration is counted
			AO	1	12
DO	2	48
			AI	2	16
DI	6	72
			Add up to	11	148

This collocation is flexibly, can adjust according to on-the-spot actual variable scale.

As shown in Figure 3, in order to facilitate debugging apparatus transport at the scene, shell is made into band roller, the casing of pull bar, and size approaches suitcase.Its structural framing and backplate adopt lightweight engineered material, and structural strength meets on-the-spot needs.Single debugging apparatus be of a size of 640 long × 390 wide × 340 height (mm), removing lid height is 240mm, appearance color be silvery white.Debugging apparatus is designed to modules and can separates with shell, is convenient to daily servicing, and changes.Modules is fixed by bottom screw and shell.

Below, describe for the method that uses above-mentioned debugging apparatus to debug for nuclear power station DCS:

In this step, according to nuclear power plant's actual DCS rack data, set up detailed I/O dot information database, for each signal wire of true DCS, specify the port of the I/O interface module that this signal wire need to be connected to.

Guarantee that analogue system simulation context contains the DCS rack I/O point of all needs debugging.

In the present embodiment, first in MySQL database, building database xtc_db, in xtc_db database, there are four lists, respectively to comprise debugging boxboard card I/O point table table_io, DCS point table pointconf, board table table_card and parameter configuration table table_conf, then, by management software accessing database, I/O point table table_io is corresponding with each point in DCS point table pointconf.

Then,, according to DCS rack debugging code, confirm the I/O point inventory that this debugging task need to connect;

Debug configuration management software by operation and set up new debugging task, the I/O point of analogue system is bound with corresponding DCS rack I/O point, set up relation one to one;

In addition, in the present embodiment, set the step that checks corresponding relation, for example: in same debugging task, same DCS point can not repeat binding; I/O vertex type must be consistent with debugging boxboard Card Type;

Step 2, according to corresponding relation wiring; Connect DCS rack I/O point and debugging apparatus I/O point;

1) two ends of TA equipment are connected respectively to debugging boxboard card and DCS rack TA interface (hardwire);

2) realistic model main frame is connected to (netting twine) with debugging case;

Step 3, operation debugging; In this process, fault can be set, to steps such as DCS signal manipulate.Specifically comprise the steps:

1) start realistic model main frame, move each realistic model;

2) determine DCS system state in kind;

In the present embodiment, each system in kind in realistic model main frame simulated core power station, i.e. the control object of DCS, the signal of these control object realistic models and DCS system in kind are carried out alternately;

Meanwhile, at realistic model main frame also emulation DCS system, move emulation DCS system, the signal of control object realistic model also therewith emulation DCS system carry out alternately;

When the state of DCS system in kind and emulation DCS system state are when inconsistent, being judged to be DCS system in kind need to adjust, adjustment process can comprise parameter adjustment or malfunction elimination means, by manual intervention, is adjusted into consistent with emulation DCS system output state.

3) confirm that the DCS system of emulation is consistent with DCS system output signal in kind, manual switchover is to DCS control system in kind, and switching that can individual signals point, also can entirety switch, and so, can avoid causing because signal is inconsistent system to move and shake.

4) according to debugging code, carry out debugging work, fault can be set in analogue system, or at system for field local operation in kind, change Injection Signal, also can on realistic model main frame, directly manipulate DCS Injection Signal.

In the present embodiment, the usual way of selection is: the system model in kind operation on realistic model main frame is changed to described system model operating mode in kind DCS operation interface in kind is long-range, then record DCS system responses state in kind.So, can, first in the situation that not accessing system in kind, further DCS system in kind be debugged.Ensure that DCS system in kind meets the requirement of trouble free service.

Ensureing under the prerequisite of DCS system performance in kind, can, by system for field local operation in kind, change the state of various device in real system in kind, then, these states are being inputed to DCS system in kind, debugging.

As mentioned above, debug process is progressively carried out, first, ensure that DCS system state in kind and emulation DCS system state consistance start, then, DCS system in kind is connected to debugging with the system model in kind on realistic model main frame, last, DCS system in kind is connected and is debugged with real system in kind, ensured security and the efficiency of debugging.

As shown in Figure 4, according to above-mentioned steps, write the DCS of full factory of the nuclear power plant Portable debugging device software that obtains having modular construction feature, for realizing whole debug process.As database information, comprise the form of describing I/O interface corresponding relation on true DCS system and the DCS of full factory of described nuclear power plant Portable debugging device, also comprise realistic model information.By the configuration interface of software, configuration task can be set, manage the operation of various analog machines (system model in kind).

The various operating modes that need to investigate DCS in debugging code, are specified, the realistic model of the control object of moving by realistic model main frame, simulate the ruuning situation of the nuclear power station under various operating modes, the state of DCS system in kind is recorded and differentiated, observe DCS system in kind and whether can meet design requirement, under various operating modes, all bring into play due effect.

Above embodiment of the present utility model is explained in detail, above-mentioned embodiment is only optimum embodiment of the present utility model, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from the utility model aim, make a variety of changes.

Claims

1. the DCS of full factory of a nuclear power plant Portable debugging device, is characterized in that, comprising: realistic model main frame, I/O interface system, shell;

I/O interface module, communication module are fixed on shell.

2. the DCS of full factory of a kind of nuclear power plant Portable debugging device as claimed in claim 1, is characterized in that, in described I/O interface module, comprising: DI module, DO module, AI module, AO module; Described TA module one end is many wiring that are connected with I/O interface module, and the other end is the connector being connected with true DCS.