Pressurized water reactor hardware-in-the-loop simulation system based on physical model

A semi-physical simulation and physical model technology, applied in the field of simulation systems, can solve the problems of not being able to well reflect the specific structure of the reactor, not being able to run dynamically, and the display effect being not intuitive enough.

Inactive Publication Date: 2012-08-08
余大利 +4
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  • Application Information

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Problems solved by technology

The existing PWR simulations are mainly divided into the following three categories: one is the three-dimensional simulation model, but the display effect of this simulation model is not intuitive enough to reflect the specific structure of the reactor well; the other is the simplified Simulation of mathematical calculation models based on conditions. This met

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  • Pressurized water reactor hardware-in-the-loop simulation system based on physical model
  • Pressurized water reactor hardware-in-the-loop simulation system based on physical model
  • Pressurized water reactor hardware-in-the-loop simulation system based on physical model

Examples

Experimental program
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Effect test

Embodiment Construction

[0183] 1. Carry out popular science publicity and undergraduate teaching demonstration.

[0184] 2. Example The flow rate of the primary circuit increases, and the characteristics of the reactor change.

[0185] Initial data:

[0186] Main coolant flow: W 0 =8975 kg / s; thermal power: P=1.6934×10 9 watt

[0187] Coolant average temperature: T c =303°C; average fuel temperature: T f = 317.54°C;

[0188] Reactor inlet temperature: T in =285.76℃; steam generator saturation temperature: T s = 275°C.

[0189] Under the above steady state, the flow rate can be obtained according to the formula by W 0 change to W ∞ time data. where W ∞ = 2W 0 .

[0190] It can be concluded that after increasing the flow rate, both the primary coolant temperature and the fuel temperature will decrease, resulting in an increase in reactivity due to the negative temperature feedback. It reaches a maximum at around 4 seconds. The minimum period T of reactivity can be obtained min = 30.3...

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Abstract

A pressurized water reactor real-time simulation system is composed of a physical model, dynamic real-time simulation software and other systems. The physical model is the first pressurized water reactor simulation model in China under a proportion of 1:10, which is made of organic transparent material based on the approximate substitution principle, and theoretical guidance is offered to actual operation of a pressurized water reactor by means of research on the simulation model, thus the economic benefit is improved and the development period of novel pressurized water reactor is shortened. Software simulation is achieved using a VC++/MATLAB hybrid simulation technique, and meanwhile, an excellent interface between the physical model and the simulation software is established to realize dynamic, real-time monitor and control for pressurized water reactor.

Description

1. Technical field [0001] The invention is a patent, which is a simulation system utilizing a combination of a pressurized water reactor physical model and a mathematical model. 2. Background technology [0002] Pressurized water reactors are currently the most widely used nuclear reactors. The existing PWR simulations are mainly divided into the following three categories: one is the three-dimensional simulation model, but the display effect of this simulation model is not intuitive enough to reflect the specific structure of the reactor well; the other is the simplified Simulation of mathematical calculation models based on conditions. This method lacks actual parameter correction and has large errors. Another type is half-physical model and half-software simulation. The physical models of reactors that can be seen now mainly include anatomical models showing the structure of the primary circuit of nuclear power plants. And the static physical model of the whole nuclear p...

Claims

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Application Information

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IPC IPC(8): G05B17/02
Inventor 余大利朱明章付玉堂李燕江一鸣
Owner 余大利
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