Aerospace-specific design guidelines for electrical insulation

Simulation of Space Charge Impact on Partial Discharge Inception Voltage in Power Busbars Dedicated to Future Hybrid Aircrafts

“…Simulation results, which focus on electric field thresholds criteria of partial discharge inception voltage in air, reveal a net sensitivity of a space charge accumulation and distribution on dielectrics behaviour even for low space charge density, depending on their location in dielectrics. Compared to the behaviour observed with implanted homocharges, when by increasing homocharges density from 0.5 C/m 3 to 2 C/m 3 we observe a decrease of electric field by 450%, simulation results show a highest risk of partial discharge inception when heterocharges are accumulated inside dielectrics. Their accumulation increases the electric field in triple points beyond electric field thresholds of partial discharge inception in air.…”

“…These power converters are generally supplied through laminated busbars which are insulated by solid organic dielectrics, most of time made of polymers materials. Among available insulators, PTFE films are often used [3].…”

Progress, Outlook, and Challenges in Lead‐Free Energy‐Storage Ferroelectrics

“…Compared with bulks and thick films, the most competitive advantage for polymer state materials is located in possibility of wearability, which is conformed correctly to the tendency of modern technology . Biaxially oriented polypropylene (BOPP), polyphenylene‐sulfide(PPS), polycarbonate (PC), and several other polymer ferroelectrics have been fully investigated and commercial production has already been achieved for higher E B , lower tanδ, and lower cost of organics .…”

“…Compared with bulks and thick films, the most competitive advantage for polymer state materials is located in possibility of wearability, which is conformed correctly to the tendency of modern technology. [116][117][118][119][120][121] Biaxially oriented polypropylene (BOPP), polyphenylene-sulfide(PPS), polycarbonate (PC), and several other polymer ferroelectrics have been fully investigated and commercial production has already been achieved for higher E B , lower tanδ, and lower cost of organics. [122][123][124][125] Despite this, after several decades' development, bottleneck for ESD on polymer materials has been encountered, and problems of low ε and unimpressive thermal stability of macromolecular materials have also blocked in their path to practical applications.…”

Nonlinear conduction in aromatic polyurea thin films and its influence on dielectric applications over a broad temperature range

“…Due to their high breakdown strength and graceful failure, which lead to increased device reliability, dielectric polymers are presently the primary choice for high energy density capacitor applications [5,6]. For many capacitor applications such as in HEVs, electrical weapons and aerospace systems, a broad operation temperature range, especially to high temperature (>150 o C), is also required [7][8][9].…”