Disturbance observer-based robust backstepping load-following control for MHTGRs with actuator saturation and disturbances
This paper presents a disturbance observer-based robust backstepping load-following control (DO-RBLFC) scheme for modular high-temperature gas-cooled reactors (MHTGRs) in the presence of actuator saturation and disturbances. Based on reactor kinetics and temperature reactivity feedback, the mathemat...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-11-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573321002709 |
| _version_ | 1818433619058753536 |
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| author | Jiuwu Hui Jingqi Yuan |
| author_facet | Jiuwu Hui Jingqi Yuan |
| author_sort | Jiuwu Hui |
| collection | DOAJ |
| description | This paper presents a disturbance observer-based robust backstepping load-following control (DO-RBLFC) scheme for modular high-temperature gas-cooled reactors (MHTGRs) in the presence of actuator saturation and disturbances. Based on reactor kinetics and temperature reactivity feedback, the mathematical model of the MHTGR is first established. After that, a DO is constructed to estimate the unknown compound disturbances including model uncertainties, external disturbances, and unmeasured states. Besides, the actuator saturation is compensated by employing an auxiliary function in this paper. With the help of the DO, a robust load-following controller is developed via the backstepping technique to improve the load-following performance of the MHTGR subject to disturbances. At last, simulation and comparison results verify that the proposed DO-RBLFC scheme offers higher load-following accuracy, better disturbances rejection capability, and lower control rod speed than a PID controller, a conventional backstepping controller, and a disturbance observer-based adaptive sliding mode controller. |
| first_indexed | 2024-12-14T16:23:58Z |
| format | Article |
| id | doaj.art-c868c1e84e9040e593470360a9f62f54 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-14T16:23:58Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-c868c1e84e9040e593470360a9f62f542022-12-21T22:54:45ZengElsevierNuclear Engineering and Technology1738-57332021-11-01531136853693Disturbance observer-based robust backstepping load-following control for MHTGRs with actuator saturation and disturbancesJiuwu Hui0Jingqi Yuan1State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen, 518172 Guangdong, China; Department of Automation, The Key Laboratory of System Control and Information Processing, Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, ChinaDepartment of Automation, The Key Laboratory of System Control and Information Processing, Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China; Corresponding author. Room 201, 2nd building, School on Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China.This paper presents a disturbance observer-based robust backstepping load-following control (DO-RBLFC) scheme for modular high-temperature gas-cooled reactors (MHTGRs) in the presence of actuator saturation and disturbances. Based on reactor kinetics and temperature reactivity feedback, the mathematical model of the MHTGR is first established. After that, a DO is constructed to estimate the unknown compound disturbances including model uncertainties, external disturbances, and unmeasured states. Besides, the actuator saturation is compensated by employing an auxiliary function in this paper. With the help of the DO, a robust load-following controller is developed via the backstepping technique to improve the load-following performance of the MHTGR subject to disturbances. At last, simulation and comparison results verify that the proposed DO-RBLFC scheme offers higher load-following accuracy, better disturbances rejection capability, and lower control rod speed than a PID controller, a conventional backstepping controller, and a disturbance observer-based adaptive sliding mode controller.http://www.sciencedirect.com/science/article/pii/S1738573321002709Modular high-temperature gas-cooled reactorsLoad followingDisturbance observerActuator saturation |
| spellingShingle | Jiuwu Hui Jingqi Yuan Disturbance observer-based robust backstepping load-following control for MHTGRs with actuator saturation and disturbances Nuclear Engineering and Technology Modular high-temperature gas-cooled reactors Load following Disturbance observer Actuator saturation |
| title | Disturbance observer-based robust backstepping load-following control for MHTGRs with actuator saturation and disturbances |
| title_full | Disturbance observer-based robust backstepping load-following control for MHTGRs with actuator saturation and disturbances |
| title_fullStr | Disturbance observer-based robust backstepping load-following control for MHTGRs with actuator saturation and disturbances |
| title_full_unstemmed | Disturbance observer-based robust backstepping load-following control for MHTGRs with actuator saturation and disturbances |
| title_short | Disturbance observer-based robust backstepping load-following control for MHTGRs with actuator saturation and disturbances |
| title_sort | disturbance observer based robust backstepping load following control for mhtgrs with actuator saturation and disturbances |
| topic | Modular high-temperature gas-cooled reactors Load following Disturbance observer Actuator saturation |
| url | http://www.sciencedirect.com/science/article/pii/S1738573321002709 |
| work_keys_str_mv | AT jiuwuhui disturbanceobserverbasedrobustbacksteppingloadfollowingcontrolformhtgrswithactuatorsaturationanddisturbances AT jingqiyuan disturbanceobserverbasedrobustbacksteppingloadfollowingcontrolformhtgrswithactuatorsaturationanddisturbances |