Stability Analysis and Efficiency Improvement of a Multi-converter System Using Multi-objective Decision Making

Multi-converter system is mainly used in advanced automotive systems. Different converters and inverters are taking part systems to provide different voltage levels a multi-converter system. It involves constant load (CVL), power (CPL) other loads. The CPL such offers negative impedance characteristic it creates destabilizing effect on the main converter. of destabilization can be reduced by increasing CVL or inserting parasitic components. Attempts have been made authors improve stability using parasitics components as switch, diode inductor. Influence insertion including series equivalent resistance filter capacitor variation performance converter mathematically analyzed conflicting behavior between efficiency observed. optimum solution these two functions obtained multi-objective decision making (MODM) varying CVL. An attempt has demonstrate converter, experimentally.