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Decoupling Control of Canadian Supercritical Water-cooled Reactors
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Decoupling Control of Canadian Supercritical Water-cooled Reactors
- 发表刊物：
- Nuclear Technology
- 摘要：
- The Canadian supercritical water-cooled reactor
(SCWR) can be modeled as a multiple-input multipleoutput
system. It has a high power-to-flow ratio, strong
cross coupling, and a high degree of nonlinearity in its
dynamic characteristics. Because of the existence of
strong cross coupling among system inputs and outputs, it
is difficult for a traditional control system design
methodology to produce a satisfactory control system.
In this paper, the direct Nyquist array method is used first
to decouple the system into a diagonally dominant form
via a precompensator. After decoupling the system
successfully, three single-input single-output dynamic
compensators are synthesized in the frequency domain.
By using the precompensator, the temperature variation
because of disturbances at the reactor power and
pressure is significantly reduced. The control system
can effectively maintain the overall system stability and
regulate the plant around a specified operating condition.
To deal with the nonlinearities, a control strategy based
on gain scheduling is adopted. Different sets of
controllers are used for the plant at different load
conditions. The proposed control strategies have been
evaluated under various operating scenarios. The robustness
of the controller with respect to operating condition
changes is also investigated. It is shown that the
decoupling control can effectively reduce the cross
coupling inherent in the Canadian SCWR, and gain
scheduling control can successfully achieve satisfactory
performance for different operating conditions.
- 合写作者：
- Peiwei Sun, Jin Jiang, Kai Wang
- 卷号：
- 185
- 页面范围：
- 239-258
- 是否译文：
- 否
- 发表时间：
- 2014-02-24
