Optimization of the primary frequency regulation ability of large-scale pressurized water reactor

IF 2.1 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Design Pub Date : 2025-09-27 DOI:10.1016/j.nucengdes.2025.114498

Muping Li, Haomin Wang, Peiwei Sun, Xinyu Wei

引用次数: 0

Abstract

The frequency regulation requirement rises with an increasing proportion of clean energy in power grid operation. Power grid operators hope nuclear power plants will participate in Primary Frequency Regulation (PFR) to reduce the burden of traditional frequency-regulation power plants. A simulation platform for a typical Pressurized Water Reactor (PWR) and power grid was developed using MATLAB/Simulink to analyze the PFR characteristics of nuclear power plants. An optimal dead zone of ±0.025–0.05 Hz and a differential adjustment coefficient of 2.5–3 % were determined, while the integration of a 0–30 % maximum frequency modulation step in the PFR function and a feedforward coefficient below 300 in main steam valve control was found to significantly enhance frequency regulation. These results provide a reference for optimizing PFR strategies in PWR nuclear power plants.

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大型压水堆一次调频能力优化

随着清洁能源在电网运行中所占比重的提高，对频率调节的要求也在不断提高。电网运营商希望核电站参与一次调频（PFR），以减轻传统调频电厂的负担。利用MATLAB/Simulink开发了典型压水堆和电网的仿真平台，对核电站压水堆特性进行了分析。确定了±0.025-0.05 Hz的最佳死区和2.5 - 3%的差分调节系数，而PFR函数中0 - 30%的最大调频步长和主蒸汽阀控制中小于300的前馈系数的集成可以显著增强频率调节。研究结果可为压水堆核电站PFR策略的优化提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Engineering and Design 工程技术-核科学技术

CiteScore

3.40

自引率

11.80%

发文量

377

审稿时长

5 months

期刊介绍： Nuclear Engineering and Design covers the wide range of disciplines involved in the engineering, design, safety and construction of nuclear fission reactors. The Editors welcome papers both on applied and innovative aspects and developments in nuclear science and technology. Fundamentals of Reactor Design include: • Thermal-Hydraulics and Core Physics • Safety Analysis, Risk Assessment (PSA) • Structural and Mechanical Engineering • Materials Science • Fuel Behavior and Design • Structural Plant Design • Engineering of Reactor Components • Experiments Aspects beyond fundamentals of Reactor Design covered: • Accident Mitigation Measures • Reactor Control Systems • Licensing Issues • Safeguard Engineering • Economy of Plants • Reprocessing / Waste Disposal • Applications of Nuclear Energy • Maintenance • Decommissioning Papers on new reactor ideas and developments (Generation IV reactors) such as inherently safe modular HTRs, High Performance LWRs/HWRs and LMFBs/GFR will be considered; Actinide Burners, Accelerator Driven Systems, Energy Amplifiers and other special designs of power and research reactors and their applications are also encouraged.