Design and Implementation of a Linear Induction Launcher with a New Excitation System Utilizing Multi-Stage Inverters.
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| Title: | Design and Implementation of a Linear Induction Launcher with a New Excitation System Utilizing Multi-Stage Inverters. |
|---|---|
| Authors: | Dogangunes, Serkan1 (AUTHOR) a.balikci@gtu.edu.tr, Balikci, Abdulkadir1 (AUTHOR) |
| Source: | Energies (19961073). Mar2024, Vol. 17 Issue 6, p1302. 24p. |
| Subjects: | Power semiconductor switches, Power electronics, Pulse width modulation transformers, Electromagnetic waves, Systems design, Projectiles |
| Abstract: | Linear induction launchers (LILs) are a specific subtype of linear motors. However, LILs are air-core machines that consistently operate in a transient rather than a steady state. Moreover, their operating currents and voltages exceed those of traditional machines. The execution time of LILs often remains within a few milliseconds, and it is essential to manage extremely high-power levels quickly. The control methods for LILs differ from those used for regular machines due to the differences from conventional linear motors. In this respect, there are still challenges to be overcome in power systems designed for LILs in the literature. This study has developed a novel power energization system to address these challenges, particularly in terms of inadequate V/f control and the unnecessary energization of regions along the barrel where no projectile is present. It focuses on the system's design using multi-stage H-bridge inverters to produce a sinusoidal current for section-by-section polyphase excitation. An FPGA-based electronics control system generates bipolar PWM fiber-optical signals for IGBT switches for scalar V/f control of the inverters. Distributed multi-inverters power each stage of the launcher's barrel and are controlled by the FPGA to create the travelling electromagnetic wave package. Three-dimensional FEM analysis is used for observation of the trigger timing to ensure positive force along the barrel. By driving each inverter independently, the coils on the barrel are excited sequentially based on the position of the projectile. This study also explains the implementation of a laboratory-scale barrel prototype, a 40 mm aluminum projectile, its power electronics, and the control part of the multi-stage inverters. In this study, 3300 V–1200 A IGBTs and 8.8 mF–2000 V DC-Link capacitors were used in the H-bridge inverter modules. Experimental studies have been conducted on the launcher, and the results obtained, including achieving a velocity of 30 m/s, are consistent with the electromagnetic simulations. It has been observed that the launcher, powered by the proposed system, is approximately 57.14% more efficient compared to the version energized by a single inverter. [ABSTRACT FROM AUTHOR] |
| Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 176303091 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Design and Implementation of a Linear Induction Launcher with a New Excitation System Utilizing Multi-Stage Inverters. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Dogangunes%2C+Serkan%22">Dogangunes, Serkan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> a.balikci@gtu.edu.tr</i><br /><searchLink fieldCode="AR" term="%22Balikci%2C+Abdulkadir%22">Balikci, Abdulkadir</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Mar2024, Vol. 17 Issue 6, p1302. 24p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Power+semiconductor+switches%22">Power semiconductor switches</searchLink><br /><searchLink fieldCode="DE" term="%22Power+electronics%22">Power electronics</searchLink><br /><searchLink fieldCode="DE" term="%22Pulse+width+modulation+transformers%22">Pulse width modulation transformers</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+waves%22">Electromagnetic waves</searchLink><br /><searchLink fieldCode="DE" term="%22Systems+design%22">Systems design</searchLink><br /><searchLink fieldCode="DE" term="%22Projectiles%22">Projectiles</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Linear induction launchers (LILs) are a specific subtype of linear motors. However, LILs are air-core machines that consistently operate in a transient rather than a steady state. Moreover, their operating currents and voltages exceed those of traditional machines. The execution time of LILs often remains within a few milliseconds, and it is essential to manage extremely high-power levels quickly. The control methods for LILs differ from those used for regular machines due to the differences from conventional linear motors. In this respect, there are still challenges to be overcome in power systems designed for LILs in the literature. This study has developed a novel power energization system to address these challenges, particularly in terms of inadequate V/f control and the unnecessary energization of regions along the barrel where no projectile is present. It focuses on the system's design using multi-stage H-bridge inverters to produce a sinusoidal current for section-by-section polyphase excitation. An FPGA-based electronics control system generates bipolar PWM fiber-optical signals for IGBT switches for scalar V/f control of the inverters. Distributed multi-inverters power each stage of the launcher's barrel and are controlled by the FPGA to create the travelling electromagnetic wave package. Three-dimensional FEM analysis is used for observation of the trigger timing to ensure positive force along the barrel. By driving each inverter independently, the coils on the barrel are excited sequentially based on the position of the projectile. This study also explains the implementation of a laboratory-scale barrel prototype, a 40 mm aluminum projectile, its power electronics, and the control part of the multi-stage inverters. In this study, 3300 V–1200 A IGBTs and 8.8 mF–2000 V DC-Link capacitors were used in the H-bridge inverter modules. Experimental studies have been conducted on the launcher, and the results obtained, including achieving a velocity of 30 m/s, are consistent with the electromagnetic simulations. It has been observed that the launcher, powered by the proposed system, is approximately 57.14% more efficient compared to the version energized by a single inverter. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/en17061302 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 24 StartPage: 1302 Subjects: – SubjectFull: Power semiconductor switches Type: general – SubjectFull: Power electronics Type: general – SubjectFull: Pulse width modulation transformers Type: general – SubjectFull: Electromagnetic waves Type: general – SubjectFull: Systems design Type: general – SubjectFull: Projectiles Type: general Titles: – TitleFull: Design and Implementation of a Linear Induction Launcher with a New Excitation System Utilizing Multi-Stage Inverters. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Dogangunes, Serkan – PersonEntity: Name: NameFull: Balikci, Abdulkadir IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 03 Text: Mar2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 19961073 Numbering: – Type: volume Value: 17 – Type: issue Value: 6 Titles: – TitleFull: Energies (19961073) Type: main |
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