CN204241954U - Nuclear power variation drive system demo plant - Google Patents
Nuclear power variation drive system demo plant Download PDFInfo
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- CN204241954U CN204241954U CN201420772204.2U CN201420772204U CN204241954U CN 204241954 U CN204241954 U CN 204241954U CN 201420772204 U CN201420772204 U CN 201420772204U CN 204241954 U CN204241954 U CN 204241954U
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Abstract
A kind of nuclear power variation drive system demo plant, relates to technical field of nuclear power, and what solve is the technical matters improving verification efficiency and checking reliability.This device comprises authentication server, host computer, signal conversion unit, the technological mathematical model of nuclear power plant is mounted with in described authentication server, instrument control mathematical model, thermal resistance signal output module is provided with in signal conversion unit, thermocouple signal output module, current signal output module, on-off model output module, on-off model load module, authentication server is for simulating the operating condition of nuclear power plant, host computer is used for classifying to the signal in nuclear power plant's dry run data, conversion, signal conversion unit outputs to nuclear power variation drive system after being used for that digital signal is converted to corresponding validation signal, and return to authentication server by host computer after receiving its feedback signal.The device and method that the utility model provides, is applicable to the checking of nuclear power variation drive system.
Description
Technical field
The utility model relates to technical field of nuclear power, particularly relates to the technology of a kind of nuclear power variation drive system demo plant.
Background technology
Interface data communications portion completes the mutual of instruction and data in the access procedure of I&C system, one of key technical problems in right and wrong active safety-type nuclear plant digital I&C system verification platform performance history.After the I&C system be verified accesses, participate in closed loop control process by the instrument control mathematical model being verified the partly or entirely alternative corresponding emulation of I&C system software and hardware, to complete the needs that verification platform is verified local or whole I&C system.
For the simulation of electric power factory equipment sensor signal, whether key is can real time modelling and output resolution ratio two aspects.Programming Control is carried out at the input end of analog signals, the signal of simulation nuclear power plant sensor device occurs, produce corresponding signal type and numerical resolution, then through I/O interface converting transmission to tested diversified drive system data processing rack, and then carry out data processing and display.
At present, be all by the dry run signal that nuclear power station is manually set be input to nuclear power variation drive system corresponding port carry out verifying, this verification mode inefficiency, and the artificial dry run signal arranged also exists certain deviation, and the reliability of the result is also relatively low.
Summary of the invention
For the defect existed in above-mentioned prior art, it is high that technical problem to be solved in the utility model is to provide a kind of verification efficiency, and the result reliability
highnuclear power variation drive system demo plant.
In order to solve the problems of the technologies described above, a kind of nuclear power variation drive system demo plant provided by the utility model, is characterized in that: comprise authentication server, host computer, signal conversion unit;
Be mounted with the technological mathematical model of nuclear power plant, instrument control mathematical model in described authentication server, it is interconnected that host computer and authentication server pass through Ethernet;
Thermal resistance signal output module is provided with in described signal conversion unit, thermocouple signal output module, current signal output module, on-off model output module, on-off model load module, modules in signal conversion unit by RS485 communication mode and host computer interconnected, the output terminal of thermal resistance signal output module wherein receives the thermal resistance signal input end of nuclear power variation drive system by hardwire, the output terminal of thermocouple signal output module receives the thermocouple signal input end of nuclear power variation drive system by hardwire, the output terminal of current signal output module receives the current signal input end of nuclear power variation drive system by hardwire, the output terminal of on-off model output module receives the on-off model input end of nuclear power variation drive system by hardwire, the input end of on-off model load module receives the on-off model output terminal of nuclear power variation drive system by hardwire.
The nuclear power variation drive system demo plant that the utility model provides, utilize the technological mathematical model of authentication server according to nuclear power plant, the operating condition of instrument control mathematical model simulation nuclear power plant, and export corresponding validation signal by the cooperation of host computer and signal conversion unit from trend nuclear power variation drive system, and the feedback signal of automatic reception simulation nuclear power variation drive system, have the advantages that verification efficiency is high and the result reliability is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the nuclear power variation drive system demo plant of the utility model embodiment.
Embodiment
Illustrate below in conjunction with accompanying drawing and be described in further detail embodiment of the present utility model, but the present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar change thereof, all should list protection domain of the present utility model in.
As shown in Figure 1, a kind of nuclear power variation drive system demo plant that the utility model embodiment provides, is characterized in that: comprise authentication server, host computer, signal conversion unit;
Be mounted with the technological mathematical model of nuclear power plant, instrument control mathematical model in described authentication server, it is interconnected that host computer and authentication server pass through Ethernet;
Thermal resistance signal output module is provided with in described signal conversion unit, thermocouple signal output module, current signal output module, on-off model output module, on-off model load module, modules in signal conversion unit by RS485 communication mode and host computer interconnected, the output terminal of thermal resistance signal output module wherein receives the thermal resistance signal input end of nuclear power variation drive system by hardwire, the output terminal of thermocouple signal output module receives the thermocouple signal input end of nuclear power variation drive system by hardwire, the output terminal of current signal output module receives the current signal input end of nuclear power variation drive system by hardwire, the output terminal of on-off model output module receives the on-off model input end of nuclear power variation drive system by hardwire, the input end of on-off model load module receives the on-off model output terminal of nuclear power variation drive system by hardwire.
In the utility model embodiment; described nuclear power variation drive system is prior art; be the stand-by facility as protection system in nuclear power station operational process, mainly comprise data processing rack and data display rack, as the object be verified in the utility model embodiment.
In the utility model embodiment, described thermal resistance signal output module, thermocouple signal output module, current signal output module, on-off model output module, on-off model load module are prior art;
The principle of work of thermal resistance signal output module is the digital signal according to input, the voltage controlling reference resistance two ends is exported by digital to analog converter, realize simulating thermal resistance signal at the electric current not changing collection terminal and flow through reference resistance, consider that temperature value and the resistance change rate of thermal resistance are linearly poor, when accuracy requirement is high, adopt lookup table mode;
The principle of work of thermocouple signal output module is the digital signal according to input, unstable and non-linear partial is exported by subtraction circuit shielding digital to analog converter low side, control the output current in miniflow source again, according to miniflow source and course cross high precision, highly reliable low resistance precision resister produce output voltage realize simulate thermocouple signal;
The principle of work of current signal output module is the digital signal according to input, exports 4 ~ 20mA electric current realize analog current signal by 16 high precision digital-to-analog converters;
On-off model output module is used for will the digital signal of input, is converted to corresponding wet contact simulating signal or corresponding dry contact analog signal output to the diversified drive system of nuclear power;
On-off model load module is used for that the wet contact signal of nuclear power variation drive system input or dry contact signal are converted to corresponding digital signal and exports.
The verification method of the nuclear power variation drive system demo plant that the utility model embodiment provides, it is characterized in that, concrete steps are as follows:
1) technological mathematical model of authentication server according to nuclear power plant, the operating condition of instrument control mathematical model simulation nuclear power plant, and export the dry run data of nuclear power plant to host computer by Ethernet;
2) host computer is classified to the signal in nuclear power plant's dry run data, is changed, then by RS485 serial port, the data after classification and conversion is outputted to each corresponding module in signal conversion unit;
3) in signal conversion unit, thermal resistance signal output module outputs to nuclear power variation drive system after the digital signal of input being converted to simulation thermal resistance signal, thermocouple signal output module outputs to nuclear power variation drive system after the digital signal of input being converted to simulation thermocouple signal, current signal output module outputs to nuclear power variation drive system after the digital signal of input is converted to analog current signal, on-off model output module outputs to nuclear power variation drive system after the digital signal of input being converted to corresponding wet contact simulating signal or corresponding dry contact simulating signal,
4) on-off model load module receives wet contact signal or the dry contact signal of nuclear power variation drive system feedback, and outputs to host computer by RS485 serial port after the signal received is converted to corresponding digital signal;
5) host computer passes authentication server back by Ethernet after the digital signal that on-off model load module feeds back is converted to corresponding nuclear power plant service data;
6) authentication server judges the operation conditions of nuclear power variation drive system according to the data that host computer returns, and realizes the checking to nuclear power variation drive system.
Claims (1)
1. a nuclear power variation drive system demo plant, is characterized in that: comprise authentication server, host computer, signal conversion unit;
Be mounted with the technological mathematical model of nuclear power plant, instrument control mathematical model in described authentication server, it is interconnected that host computer and authentication server pass through Ethernet;
Thermal resistance signal output module is provided with in described signal conversion unit, thermocouple signal output module, current signal output module, on-off model output module, on-off model load module, modules in signal conversion unit by RS485 communication mode and host computer interconnected, the output terminal of thermal resistance signal output module wherein receives the thermal resistance signal input end of nuclear power variation drive system by hardwire, the output terminal of thermocouple signal output module receives the thermocouple signal input end of nuclear power variation drive system by hardwire, the output terminal of current signal output module receives the current signal input end of nuclear power variation drive system by hardwire, the output terminal of on-off model output module receives the on-off model input end of nuclear power variation drive system by hardwire, the input end of on-off model load module receives the on-off model output terminal of nuclear power variation drive system by hardwire.
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| CN201420772204.2U CN204241954U (en) | 2014-12-10 | 2014-12-10 | Nuclear power variation drive system demo plant |
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| CN201420772204.2U CN204241954U (en) | 2014-12-10 | 2014-12-10 | Nuclear power variation drive system demo plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571081A (en) * | 2014-12-10 | 2015-04-29 | 国核自仪系统工程有限公司 | Nuclear power diversified driving system verifying device and verifying method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571081A (en) * | 2014-12-10 | 2015-04-29 | 国核自仪系统工程有限公司 | Nuclear power diversified driving system verifying device and verifying method thereof |
| CN104571081B (en) * | 2014-12-10 | 2018-10-02 | 国核自仪系统工程有限公司 | Nuclear power diversification drive system verifies device and its verification method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
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| CP02 | Change in the address of a patent holder |
Address after: 200241 No. 428 East Jiangchuan Road, Shanghai, Minhang District Patentee after: STATE NUCLEAR POWER AUTOMATION SYSTEM ENGINEERING Co.,Ltd. Address before: 200241. A2036, building B, building 555, Dongchuan Road, Minhang District, Shanghai Patentee before: STATE NUCLEAR POWER AUTOMATION SYSTEM ENGINEERING Co.,Ltd. |