Abstract The task of this investigation is to design a controller that has a strong robustness in various operating conditions. A new structure of state feedback assisted classical control (SFACC) that uses a differential lag compensator in the inner classical control loop is proposed to improve the robustness of original SFACC. The linear quadratic Gaussian with loop transfer recovery (LQG/LTR) at the plant output is employed to design the robust controller in the outer control loop. A comparison of the performance and robustness between the gain-insensitive controller and an existing LQG/LTR controller is made by nonlinear simulations. The proposed gain-insensitive LQG/LTR controller can give satisfying performance for both reactor power and coolant temperature over a wide range of reactor operations.

中文翻译：

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基于改进SFACC的压水堆功率控制系统LQG/LTR控制器设计

摘要 本研究的任务是设计一种在各种运行条件下都具有很强鲁棒性的控制器。提出了一种新的状态反馈辅助经典控制（SFACC）结构，在内部经典控制回路中使用微分滞后补偿器，以提高原始SFACC的鲁棒性。在设备输出端采用具有环路传递恢复 (LQG/LTR) 的线性二次高斯函数来设计外部控制环路中的鲁棒控制器。通过非线性仿真对增益不敏感控制器和现有 LQG/LTR 控制器之间的性能和鲁棒性进行了比较。所提出的对增益不敏感的 LQG/LTR 控制器可以在广泛的反应堆运行范围内为反应堆功率和冷却​​剂温度提供令人满意的性能。