Pressurized Water reactor power level control: A nonlinear generalized predictive control with extended Kalman filter method

IF 2.6 3区 工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY Nuclear Engineering and Technology Pub Date : 2024-08-10 DOI:10.1016/j.net.2024.08.016
Yuanjie Fang, Minrui Fei, Hong Qian
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Abstract

Reactor power level control is an effective way to achieve load tracking of Pressurized Water Reactor (PWR) in a nuclear power station. A novel Nonlinear Generalized Predictive Control with Extended Kalman Filter (NGPC + EKF) is proposed to solve the problem that discrete predictive model mismatch in noisy environment. In this paper, an NGPC controller is developed to realize the reactor load tracking, and an EKF is used to estimate reactor states and suppress noise. Finally, the control methods of PID, MPC, NGPC and NGPC + EKF are compared by two simulation experiments, load tracking experiment and step response experiment. The load tracking experiment results show that NGPC + EKF method obtains better noise suppression ability and tracking effect. In the step response experiment, the proposed NGPC + EKF scheme is also proved to have better step response performance than others.
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压水反应堆功率水平控制:采用扩展卡尔曼滤波法的非线性广义预测控制
反应堆功率水平控制是实现核电站压水堆(PWR)负荷跟踪的有效方法。为了解决噪声环境下离散预测模型不匹配的问题,提出了一种新的非线性广义预测控制与扩展卡尔曼滤波器(NGPC + EKF)。本文开发了一种 NGPC 控制器来实现电抗器负荷跟踪,并使用 EKF 来估计电抗器状态和抑制噪声。最后,通过负载跟踪实验和阶跃响应实验两种仿真实验比较了 PID、MPC、NGPC 和 NGPC + EKF 的控制方法。负载跟踪实验结果表明,NGPC + EKF 方法具有更好的噪声抑制能力和跟踪效果。在阶跃响应实验中,所提出的 NGPC + EKF 方案也被证明比其他方案具有更好的阶跃响应性能。
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来源期刊
Nuclear Engineering and Technology
Nuclear Engineering and Technology 工程技术-核科学技术
CiteScore
4.80
自引率
7.40%
发文量
431
审稿时长
3.5 months
期刊介绍: Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters. NET covers all fields for peaceful utilization of nuclear energy and radiation as follows: 1) Reactor Physics 2) Thermal Hydraulics 3) Nuclear Safety 4) Nuclear I&C 5) Nuclear Physics, Fusion, and Laser Technology 6) Nuclear Fuel Cycle and Radioactive Waste Management 7) Nuclear Fuel and Reactor Materials 8) Radiation Application 9) Radiation Protection 10) Nuclear Structural Analysis and Plant Management & Maintenance 11) Nuclear Policy, Economics, and Human Resource Development
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