Design Procedure of Cascaded Multilevel Inverter for High-Power Amplifier in SONAR System

Jejin Jang, Jaehyuk Choi, Donghun Lee and Hyungsoo Mok ()
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Jejin Jang: Research & Development Division, Tin Technology Co., Ltd., Seongnam 13212, Republic of Korea
Jaehyuk Choi: Research & Development Division, Tin Technology Co., Ltd., Seongnam 13212, Republic of Korea
Donghun Lee: Agency for Defense Development, Changwon 51678, Republic of Korea
Hyungsoo Mok: Electrical Engineering Department, Konkuk University, Seoul 05029, Republic of Korea

Energies, 2024, vol. 17, issue 7, 1-19

Abstract: In recent years, there has been a trend toward expanding the operating frequency range and increasing the output power of Sound Navigation and Ranging (SONAR) systems to enhance their acoustic detection capabilities. However, due to this increase in operational power, the electrical capacity of amplifiers for SONAR system operation also increases, necessitating High-Power Amplifiers. When configured with a single amplifier, as in conventional methods, the volume of amplifiers increases due to volumetric increases in heat dissipation, components, and windings. These issues are detrimental to SONAR amplifier installation, mobility, maintenance, and equipment lifespan due to stress on individual components. Additionally, amplifiers for SONAR systems are comprised of power conversion devices, transformers for LC filters and matching, necessitating consideration of LC filters and matching transformers for enhancing voltage quality and efficiency to improve amplifier performance transmitted to SONAR transducers. However, previous research has focused on single-amplifier design methods, neglecting such considerations. Therefore, this paper proposes a design technique that overcomes the drawbacks of using the conventional design method by configuring multiple H-bridge inverters in a cascade format and utilizes one of the optimization algorithms, Particle Swarm Optimization (PSO), to derive amplifier design techniques that optimize component parameters for enhancing high-capacity amplifier performance. Subsequently, theoretical analysis, simulations, and experimental results comparing the proposed high-power amplifier design method with conventional single-amplifier design methods demonstrate similar error rates in operational frequency bands.

Keywords: Sound Navigation and Ranging (SONAR); Particle Swarm Optimization; high-power amplifier (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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