Simple Learning-Based Robust Nonlinear Control of an Electric Pump for Liquid-Propellant Rocket Engines
This paper presents a robust nonlinear control strategy for an electric pump for liquid-propellant rocket engines. In order to compensate for model uncertainties and disturbances, a gradient-descent-based simple learning control strategy is employed that minimizes the cost function defined on the er...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/16/3527 |
| _version_ | 1797584898855272448 |
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| author | Mohammad Jafari Mahmut Reyhanoglu Zhandos Kozhabek |
| author_facet | Mohammad Jafari Mahmut Reyhanoglu Zhandos Kozhabek |
| author_sort | Mohammad Jafari |
| collection | DOAJ |
| description | This paper presents a robust nonlinear control strategy for an electric pump for liquid-propellant rocket engines. In order to compensate for model uncertainties and disturbances, a gradient-descent-based simple learning control strategy is employed that minimizes the cost function defined on the error dynamics of the nonlinear system. Detailed stability analysis for the nonlinear system is provided. Computer simulation results are included to demonstrate the effectiveness of the nonlinear control method using an electric pump model consisting of a brushless permanent-magnet direct current (DC) motor and a centrifugal pump. In particular, it is shown that by employing the developed nonlinear controller, the mass flow rate can be successfully kept at a certain level, can be changed instantly from one level to another (immediate decrease or increase), or can be changed linearly/nonlinearly, gradually, and continually for a certain period. |
| first_indexed | 2024-03-10T23:59:13Z |
| format | Article |
| id | doaj.art-6bf4419de40b4fbcbf65bab750043b1f |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T23:59:13Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-6bf4419de40b4fbcbf65bab750043b1f2023-11-19T00:54:57ZengMDPI AGElectronics2079-92922023-08-011216352710.3390/electronics12163527Simple Learning-Based Robust Nonlinear Control of an Electric Pump for Liquid-Propellant Rocket EnginesMohammad Jafari0Mahmut Reyhanoglu1Zhandos Kozhabek2Robotics Engineering Program, Columbus State University, Columbus, GA 31907, USARobotics Engineering Program, Columbus State University, Columbus, GA 31907, USADepartment of Space Engineering and Technology, Almaty University of Power Engineering and Telecommunications, Almaty 050013, KazakhstanThis paper presents a robust nonlinear control strategy for an electric pump for liquid-propellant rocket engines. In order to compensate for model uncertainties and disturbances, a gradient-descent-based simple learning control strategy is employed that minimizes the cost function defined on the error dynamics of the nonlinear system. Detailed stability analysis for the nonlinear system is provided. Computer simulation results are included to demonstrate the effectiveness of the nonlinear control method using an electric pump model consisting of a brushless permanent-magnet direct current (DC) motor and a centrifugal pump. In particular, it is shown that by employing the developed nonlinear controller, the mass flow rate can be successfully kept at a certain level, can be changed instantly from one level to another (immediate decrease or increase), or can be changed linearly/nonlinearly, gradually, and continually for a certain period.https://www.mdpi.com/2079-9292/12/16/3527learning controlelectric pumpnonlinear control |
| spellingShingle | Mohammad Jafari Mahmut Reyhanoglu Zhandos Kozhabek Simple Learning-Based Robust Nonlinear Control of an Electric Pump for Liquid-Propellant Rocket Engines Electronics learning control electric pump nonlinear control |
| title | Simple Learning-Based Robust Nonlinear Control of an Electric Pump for Liquid-Propellant Rocket Engines |
| title_full | Simple Learning-Based Robust Nonlinear Control of an Electric Pump for Liquid-Propellant Rocket Engines |
| title_fullStr | Simple Learning-Based Robust Nonlinear Control of an Electric Pump for Liquid-Propellant Rocket Engines |
| title_full_unstemmed | Simple Learning-Based Robust Nonlinear Control of an Electric Pump for Liquid-Propellant Rocket Engines |
| title_short | Simple Learning-Based Robust Nonlinear Control of an Electric Pump for Liquid-Propellant Rocket Engines |
| title_sort | simple learning based robust nonlinear control of an electric pump for liquid propellant rocket engines |
| topic | learning control electric pump nonlinear control |
| url | https://www.mdpi.com/2079-9292/12/16/3527 |
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