AC distributed power supplies used for solid state short-circuit fault current limiter

First of all, the principle of the high-frequency AC current bus distributed power system, which has the characteristic of good load expansibility and isolation of high voltage is introduced. Then, based on the principle, a novel topology of DC power supply with multiple and isolated output is presented and working stage is analyzed in detail. A prototype has been used in solid state fault current limiter with 10 kV voltage successfully.