| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power conversion system capable of stably supplying AC power even if a failure occurs in an AC power supply.SOLUTION: The electric power conversion system 1 includes a switching section 2 and a low-pass filter 3 between an AC power supply 6 and a primary winding 4a of a transformer 4. A load apparatus 7 of a secondary winding 4b of the transformer 4 is connected with a load apparatus 7 and IGBTQ1, Q2 of the switching section 2 are turned on/off so that an output voltage V3 becomes a target voltage Vt. Thus, even if an instantaneous drop occurs in an AC voltage V1 from the AC power supply 6, AC power can be stably supplied to the load apparatus 7. |
