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Xie H, Duan Q, Ping J, Lu C, Zhang L, Li S. Reactivity disturbance suppression method for small modular reactors based on core coolant flow control. Sci Rep 2022; 12:14950. [PMID: 36056078 PMCID: PMC9440147 DOI: 10.1038/s41598-022-19243-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 08/26/2022] [Indexed: 11/22/2022] Open
Abstract
Small modular reactors (SMR) have an exceptionally wide range of applications due to their flexibility. But the reactivity of SMR is more susceptible to disturbance than that of large commercial reactors, which may cause the core power to deviate from the set value, and the limited internal space makes it difficult for SMR to compensate or adjust for reactivity disturbance by setting a sufficient number of control rods as in large commercial reactors. Therefore, in order to improve the operational stability of SMR, a method is proposed to indirectly change the nuclear fuel temperature by adjusting the coolant flow rate and thus compensate the reactivity disturbance by the Doppler effect of nuclear fuel resonance absorption. Simulation experiments show that the method can effectively eliminate reactive disturbances that cannot be completely eliminated by control rods under the conditions of restricted SMR space and limited number of control rod sets, thus providing operational stability of SMR.
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Affiliation(s)
- Hongyun Xie
- State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd., Shenzhen, 518172, China.
| | - Qizhi Duan
- State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd., Shenzhen, 518172, China
| | - Jialin Ping
- State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd., Shenzhen, 518172, China
| | - Chao Lu
- State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd., Shenzhen, 518172, China
| | - Liming Zhang
- State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd., Shenzhen, 518172, China
| | - Shuqiang Li
- State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd., Shenzhen, 518172, China
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Polo-Labarrios M, Godínez F, Quezada-García S. Numerical-analytical solutions of the fractional point kinetic model with Caputo derivatives. ANN NUCL ENERGY 2022. [DOI: 10.1016/j.anucene.2021.108745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Novel solution to the fractional neutron point kinetic equation using conformable derivatives. ANN NUCL ENERGY 2021. [DOI: 10.1016/j.anucene.2021.108407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Power Level Control of Nuclear Power Plant Based on Asymptotical State Observer under Neutron Sensor Fault. SCIENCE AND TECHNOLOGY OF NUCLEAR INSTALLATIONS 2021. [DOI: 10.1155/2021/8833729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Power level control is one of the critical functions in the instrument and control system of nuclear power plants (NPPs). In most power level control systems of NPPs, the power level or average neutron flux in reactor cores provided by out-of-core neutron sensors are usually measured as feedback of power control systems, while, as critical measuring devices, there is a risk of damage to out-of-core neutron sensors. For improving the operation reliability of NPPs under the neutron sensors’ failure, a power control system based on power observer is developed in this work. The simulation based on NPP simulator shows the power control system based on the observer is effective when neutron sensors fail.
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Espinosa-Martínez EG, François JL, Martin-del-Campo C, Maleki Moghaddam N. Time-space fractional neutron point kinetics: Theory and simulations. ANN NUCL ENERGY 2020. [DOI: 10.1016/j.anucene.2020.107448] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Puchalski B, Rutkowski TA, Duzinkiewicz K. Fuzzy Multi-Regional Fractional PID controller for Pressurized Water nuclear Reactor. ISA TRANSACTIONS 2020; 103:86-102. [PMID: 32303353 DOI: 10.1016/j.isatra.2020.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 02/21/2020] [Accepted: 04/08/2020] [Indexed: 06/11/2023]
Abstract
The paper presents the methodology for the synthesis of a Fuzzy Multi-Regional Fractional Order PID controller (FMR-FOPID) used to control the average thermal power of a PWR nuclear reactor in the load following mode. The controller utilizes a set of FOPID controllers and the fuzzy logic Takagi-Sugeno reasoning system. The proposed methodology is based on two optimization parts. The first part is devoted to finding the optimal parameters of local FOPID controllers and in the second part, the optimal membership functions of the fuzzy reasoning system are designed. During the controller designing and comparison phase, the two validated nodal models of a nuclear reactor are used, simplified model and extended model respectively. The proposed approach has been verified by computer simulations that confirm its effectiveness.
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Affiliation(s)
- Bartosz Puchalski
- Faculty of Electrical and Control Engineering, Gdańsk University of Technology, Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland.
| | - Tomasz Adam Rutkowski
- Faculty of Electrical and Control Engineering, Gdańsk University of Technology, Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland.
| | - Kazimierz Duzinkiewicz
- Faculty of Electrical and Control Engineering, Gdańsk University of Technology, Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland.
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Rady K, Abouelsoud AA, Kotb SA, El Metwally MM. Modeling and Estimation of Nuclear Reactor Performance Using Fractional Neutron Point Kinetics with Temperature Effect and Xenon Poisoning. NUCL SCI ENG 2020. [DOI: 10.1080/00295639.2020.1755808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- K. Rady
- Cairo University, Electrical Power and Machine Department, Cairo, Egypt
| | - A. A. Abouelsoud
- Cairo University, Electronics and Communication Engineering Department, Giza, Egypt
| | - S. A. Kotb
- Egyptian Atomic Energy Authority, Cairo, Egypt
| | - M. M. El Metwally
- Cairo University, Electrical Power and Machine Department, Cairo, Egypt
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Rafiei M, Ansarifar G, Hadad K, Mohammadi M. Stability analysis of linear FNPK model considering reactivity feedback effects for a research nuclear reactor. PROGRESS IN NUCLEAR ENERGY 2019. [DOI: 10.1016/j.pnucene.2019.103081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Vyawahare VA, Espinosa-Paredes G. BWR stability analysis with sub-diffusive and feedback effects. ANN NUCL ENERGY 2017. [DOI: 10.1016/j.anucene.2017.06.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Polo-Labarrios M, Espinosa-Paredes G, Lopéz R, Nuñez-Carrera A, Huerta A, Vázquez-Rodríguez R. ATWS boron analysis for a BWR using the FNPK equation. ANN NUCL ENERGY 2017. [DOI: 10.1016/j.anucene.2017.04.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Puchalski B, Rutkowski TA, Duzinkiewicz K. Nodal models of Pressurized Water Reactor core for control purposes – A comparison study. NUCLEAR ENGINEERING AND DESIGN 2017. [DOI: 10.1016/j.nucengdes.2017.07.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Espinosa-Paredes G. Fractional-space neutron point kinetics (F-SNPK) equations for nuclear reactor dynamics. ANN NUCL ENERGY 2017. [DOI: 10.1016/j.anucene.2016.08.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hamada YM. Modified fractional neutron point kinetics equations for finite and infinite medium of bar reactor core. ANN NUCL ENERGY 2017. [DOI: 10.1016/j.anucene.2017.03.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Cázares-Ramírez RI, Vyawahare VA, Espinosa-Paredes G, Nataraj P. On the feedback stability of linear FNPK equations. PROGRESS IN NUCLEAR ENERGY 2017. [DOI: 10.1016/j.pnucene.2017.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Solution of the fractional neutron point kinetics equations considering time derivative of the reactivity. PROGRESS IN NUCLEAR ENERGY 2017. [DOI: 10.1016/j.pnucene.2017.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Hamada YM, Brikaa M. Nonstandard finite difference schemes for numerical solution of the fractional neutron point kinetics equations. ANN NUCL ENERGY 2017. [DOI: 10.1016/j.anucene.2016.12.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Espinosa-Paredes G, Cázares-Ramírez RI. Source term in the linear analysis of FNPK equations. ANN NUCL ENERGY 2016. [DOI: 10.1016/j.anucene.2016.06.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Espinosa-Paredes G, Polo-Labarrios MA. Analysis of the fractional neutron point kinetics (FNPK) equation. ANN NUCL ENERGY 2016. [DOI: 10.1016/j.anucene.2016.02.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Comment on the paper: Espinosa-Parrdes, et al., 2011. Fractional neutron point kinetics equations for nuclear reactor dynamics. Ann. Nucl. Energ. 38, 307–330. ANN NUCL ENERGY 2016. [DOI: 10.1016/j.anucene.2015.08.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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