Characterization of Space Charge Distribution and Charge Trapping Behavior in High-Voltage Polymer Dielectrics Using Pulsed Electroacoustic and Thermally Stimulated Current Techniques

Abstract

The study investigates the space charge distribution and charge trapping behavior in high-voltage polymer dielectrics using the Pulsed Electroacoustic (PEA) and Thermally Stimulated Current (TSC) techniques. These methods enable a comprehensive understanding of charge dynamics, material aging, and dielectric breakdown mechanisms. Space charge accumulation significantly influences the reliability and lifespan of high-voltage insulation materials. This paper presents experimental data on space charge distribution and charge trapping characteristics in commonly used polymer dielectrics, along with a discussion on how temperature, electric field strength, and polymer composition affect charge behavior. The study highlights key findings from recent research (2023) and provides insights into improving the performance of high-voltage polymer dielectrics.