Browsing by Subject "Transients (Electricity)"
Now showing 1 - 2 of 2
- Results Per Page
- Sort Options
Item Single-phase nonlinear power electronic loads: modeling and impact on power system transient response and stability(2008-05) Rylander, Matthew Robert, 1981-; Grady, W. M.This dissertation examines single-phase nonlinear power electronic loads. The transient response of power electronic loads is unlike traditional linear loads. Therefore, a composite power electronic transient load model is developed. The load model dynamics are validated with actual utility voltage sag response data, laboratory controlled load response testing, and power electronic load dynamic simulations. The power electronic load model is applied in the University of Texas at Austin power system. The system transient response is unique and considerably different from what it would be with traditional linear loads. The power electronic load can be friendly or unfriendly to the system depending on the fault and system configuration.Item Transient charging processes at liquid-solid and vacuum-solid interfaces(2006) Kenney, Jason Andrew; Hwang, GyeongThe behavior of transient charging processes at interfaces has become increasingly important in the manufacture of materials on the micron-scale and below. Herein, the modeling and simulation of processes occurring at liquid-solid and vacuum-solid interfaces are considered. For the liquid-solid interface, an electrochemical machining system is modeled using equivalent circuits. Comparisons are then made between experimental and model results for transient current response and machining resolution. Predictions are given regarding the use of complex electrode shapes. For the vacuum-solid interface, surface charging of dielectric under plasma bombardment is considered. A high aspect ratio structure with varying absolute dimension is used with a bimodal ion energy distribution, and the resulting fluxes and energies of ions investigated.