Effect of Temperature Change on Acoustic Emission Signal in IGBT Transistors of Marine Propulsion System Converters

Abstract

The article presents the results of tests related to failure analysis and finding ways to diagnose used semiconductor elements, among others, in power electronics converter systems on vessels and offshore facilities (drilling and production rigs and wind turbines). Diagnostic relationships were found between the temperature change in the above systems and the signals generated in the form of elastic waves of acoustic emission. The authors confirmed the influence of the transistor’s working temperature on its amplitude-frequency spectrum of acoustic emission signals emitted. The range of ‘safe temperatures’ was considered which means temperatures that do not directly affect the damage of the component.

Research on Corrosion Detection Method of Oil Tank Bottom Based on Acoustic Emission Technology

“…reported so far [6][7][8]. In this paper, the working principle of an explosion-proof AE instrument is introduced.…”

Optimization of the Conveyor Line System Using Computer Simulation on the Example of a Modern Warehouse

“…Automation forces higher costs, which will pay off after an appropriate time with the assumed line efficiency, with lower costs may not pay off and it will be more economical to find other options [13][14][15][16]. In addition, taking into account the reliability of the control systems (e.g., through appropriate diagnostic techniques), a system with very high efficiency can be achieved [17][18].…”