Design of 50 kW 100 kHz oil immersed transformer for deep sea applications

Inhalt:
Energy efficiency, reduced size and weight, and minimized acoustic noise are critical factors in the design of power electronic systems for modern applications. Achieving miniaturization in power supplies requires the use of increasingly high switching frequencies, which continue to rise annually. While higher operating frequencies enable the reduction of magnetic component dimensions, they also introduce complex design challenges that must be carefully addressed to ensure optimal performance and reliability. This paper presents the design and development of a 50-kW high-frequency transformer operating at 100 kHz, specifically intended for use in a remotely operated vehicle (ROV) capable of reaching depths of 5000 meters underwater. The transformer design incorporates advanced material selection, thermal management strategies, and insulation techniques to withstand the harsh subsea environment. Practical verification of the design was conducted through the construction and testing of two engineering prototypes, demonstrating the feasibility and effectiveness of the proposed approach