Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-II
An electro-hydraulic servo pump control system (hereinafter referred to as EHSPCS) is a volume servo control unit that is highly integrated with servo motors, fixed-displacement pumps, hydraulic cylinders and functional valve groups. Because of its unique volume direct-drive control mode, the dynami...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023010125 |
| _version_ | 1797851895926095872 |
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| author | Mingkun Yang Guishan Yan Yuhang Zhang Tiangui Zhang Chao Ai |
| author_facet | Mingkun Yang Guishan Yan Yuhang Zhang Tiangui Zhang Chao Ai |
| author_sort | Mingkun Yang |
| collection | DOAJ |
| description | An electro-hydraulic servo pump control system (hereinafter referred to as EHSPCS) is a volume servo control unit that is highly integrated with servo motors, fixed-displacement pumps, hydraulic cylinders and functional valve groups. Because of its unique volume direct-drive control mode, the dynamic performance of the system is limited, and the thermal power loss is large, which seriously restricts the improvement of the working quality of the system. To improve the dynamic performance of the system and reduce the thermal power loss to the maximum extent, a multi-objective optimization design method for the EHSPCS is proposed by comprehensively considering the dynamic and efficient energy-saving characteristics of the system. The evaluation model of the dynamic period of the hydraulic cylinder and the thermal power loss of the servo motor are given. Parameters such as the electromagnetic torque of the servo motor, displacement of the hydraulic pump, and working area of the hydraulic cylinder are intelligently optimized by a non-dominated sorting genetic algorithm with elite strategy (NSGA-II). The Pareto front of multi-objective optimization and the corresponding Pareto solution set are obtained; thus, the optimal matching of the system characteristics is realized. Finally, the relevant theory of the multi-objective optimization algorithm is applied to optimize the performance parameters of the hydraulic servo motor, and the prototype is tested in engineering. The experimental results show that the dynamic period of the hydraulic servo motor is accelerated after optimization, and the thermal power loss is significantly reduced. The dynamic and efficient energy-saving characteristics of the system are improved, which further verifies the feasibility of the proposed theory. |
| first_indexed | 2024-04-09T19:25:14Z |
| format | Article |
| id | doaj.art-1aa05b7e35e54d9aaa12add5c703414e |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-09T19:25:14Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-1aa05b7e35e54d9aaa12add5c703414e2023-04-05T08:16:47ZengElsevierHeliyon2405-84402023-03-0193e13805Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-IIMingkun Yang0Guishan Yan1Yuhang Zhang2Tiangui Zhang3Chao Ai4School of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, ChinaSchool of Intelligent Systems Engineering, Sun Yat-Sen University, Guangzhou, 510275, China; Corresponding author.School of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, ChinaSchool of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, ChinaSchool of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, ChinaAn electro-hydraulic servo pump control system (hereinafter referred to as EHSPCS) is a volume servo control unit that is highly integrated with servo motors, fixed-displacement pumps, hydraulic cylinders and functional valve groups. Because of its unique volume direct-drive control mode, the dynamic performance of the system is limited, and the thermal power loss is large, which seriously restricts the improvement of the working quality of the system. To improve the dynamic performance of the system and reduce the thermal power loss to the maximum extent, a multi-objective optimization design method for the EHSPCS is proposed by comprehensively considering the dynamic and efficient energy-saving characteristics of the system. The evaluation model of the dynamic period of the hydraulic cylinder and the thermal power loss of the servo motor are given. Parameters such as the electromagnetic torque of the servo motor, displacement of the hydraulic pump, and working area of the hydraulic cylinder are intelligently optimized by a non-dominated sorting genetic algorithm with elite strategy (NSGA-II). The Pareto front of multi-objective optimization and the corresponding Pareto solution set are obtained; thus, the optimal matching of the system characteristics is realized. Finally, the relevant theory of the multi-objective optimization algorithm is applied to optimize the performance parameters of the hydraulic servo motor, and the prototype is tested in engineering. The experimental results show that the dynamic period of the hydraulic servo motor is accelerated after optimization, and the thermal power loss is significantly reduced. The dynamic and efficient energy-saving characteristics of the system are improved, which further verifies the feasibility of the proposed theory.http://www.sciencedirect.com/science/article/pii/S2405844023010125Electro-hydraulic servo pump control systemHigh dynamicEfficient energy-savingMulti-objective optimizationNSGA-II |
| spellingShingle | Mingkun Yang Guishan Yan Yuhang Zhang Tiangui Zhang Chao Ai Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-II Heliyon Electro-hydraulic servo pump control system High dynamic Efficient energy-saving Multi-objective optimization NSGA-II |
| title | Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-II |
| title_full | Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-II |
| title_fullStr | Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-II |
| title_full_unstemmed | Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-II |
| title_short | Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-II |
| title_sort | research on high efficiency and high dynamic optimal matching of the electro hydraulic servo pump control system based on nsga ii |
| topic | Electro-hydraulic servo pump control system High dynamic Efficient energy-saving Multi-objective optimization NSGA-II |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023010125 |
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