| 论文简介 |
Significant progress has been made in the development of the small pressurized water reactors (SPWR).
Unique characteristics of the SPWR deliver challenges to its control system design. In order to facilitate
the control system design process and enhance its efficiency, it is important and necessary to establish a
control system design and validation platform. Using shared memory technology, an engineering simulator
coupled with MATLAB/Simulink is employed to achieve this objective. Shared memory is an efficient
method to exchange data within programs. Dynamic data exchange and simulation time synchronization
methods are particularly treated. To verify the platform, an SPWR with its control system is modeled
using the platform and the simulator. Thermal-hydraulic modeling of the SPWR is carried out using
Relap5, and its nodalization is introduced. The objectives of the control strategy are to maintain the average
coolant temperature linearly varying with the reactor power and steam pressure constant. A preliminary
SPWR control system is designed with proportional-integral-derivative (PID) controllers, and is
implemented in MATLAB/Simulink associated with the engineering simulator. Subsequently, in order
to evaluate the performance of the established simulation platform, transients of abrupt load changes
and wide range load changes are simulated and simulation results are verified against those obtained
from the engineering simulator alone. It is demonstrated that simulation results of both platforms are
consistent with each other, which proves that the coupling of engineering simulator and MATLAB/
Simulink is successful. Therefore, the established simulation platform can be committed to control system
design and validation. Furthermore, it is revealed that the designed control strategy is able to regulate
the process parameters such as coolant average temperature and steam pressure to the desired
values. |
(创新港)
