High Efficient Power Converter Using Partial Power Processing - Thesis Example

ABSTRACT
According to the expert analysis while the late 1950s, power electronics have been developing by leaps and bounds without diffusion to become the key expertise necessary to contemporary society and human life as well as to electrical engineering.

The voltage gain and efficiency at steady state are derived using the principles of inductor volt–second balance, capacitor charge balance, and the small-ripple approximation for continuous-conduction mode. Finally, a 35W, 12 V DC input, 48 V DC output, fsw=40 kHz IBFC has been implemented in the laboratory to validate the theoretical analysis. A design procedure is expounded, and design guidelines for selecting critical components are also presented. It is shown that high voltage gain with high efficiency can be achieved by the IBFC system.

No doubt a test console is clarified for the process of together high power Hall-effect thrusters (HETs) and ion thrusters. The console makes use of three-phase booming DC conversion power modules. If we analyzed then we come to know that it is supposed that three-phase resonant conversion (3PRC) of electrical power is preferably suited for EP power systems, and will soon turn out to be the premier converter for flight applications (J. M. Alonso, C., 2002, pp. 573-585). These converters create the lowest voltage ripple in excess of any known topology. Moreover, the processing power is incessantly and not in pulses as do their single-phase precursor. The nonattendance of power pulses very much reduces the size and mass of the filtering mechanism in the three-phase converter, and the even power transfer has helped it attain peak competence ratings of >97%. Three-phase booming power converters are also broad range contrast to competing designs (A. Ammous, 2002, pp. 12-25).

For instance, first-order CPE designs have displayed efficiencies of 97% or senior at occupied power over an output impedance range of 4:1. Lately, urbanized second-order CPE designs have attained a production impedance variety of 25:1 at efficiencies over 96%. A comparison of 3PRC to square-wave and single-phase booming conversion is obtainable (B. Arntzen, 2002, pp. 892-902).

A preliminary contrast is also offered of flash x-ray survivability of typical “current-fed” and 3PRC designs where x-ray pulse period effects are careful. A further benefit of 3PRC modules in excess of other power conversion hardware is their low precise mass. Assistant to high competence and low specific mass is the additional advantage of moderately easy thermal management with negligible supplies on heat transmission pathways and thermal interfaces. In adding to showing an appraisal of the 3PRC design and latest prototype performance, a thorough argument is offered of the test console design and hardware future for operation of all SEP-based ion and plasma thrusters that are at present obtainable at NASA centers and profitable aerospace companies (G. Arun, W. Shireen, 2002, pp.308-314). The secondary objective of the test console attempt is the growth of a modular control system that can be interfaced with any number of 3PRC power modules in a plug-and-play fashion. The complete adaptability of the 3PRC design can be practical in this approach to (1) exploit circuit design re-use (enabled by the 3PRC wide range capability), (2) minimize system mass (due to low 3PRC exact mass and light thermal interface supplies), and (3) preserve world-class performance. The 3PRC test console growth explained herein is proposed to provide as a guide to the growth of consistent architecture sub-systems proposed for off-the-shelf flight hardware solutions to prospect EP applications (C. Attaianese, 2002, pp. 1112-1121).