| 摘要 |
PURPOSE:To improve the output frequency in an anti-parallel connection by separating output current command values into positive and negative directions to independently control positive and negative side converters, and reducing the phases during the nonconduction period to eliminate the positive and negative converting time. CONSTITUTION:A noncirculation current power converter has an output current command value IP generator 103, positive and negative direction detectors 104, 105 of the value IP, positive and negative side current controllers 106, 107, positive and negative side phase shifters 108, 109, pulse amplifiers 110, 111, positive and negative side rectangular wave circuits 121, 122, logic product circuits 123, 124, and inverters 127, 128. Thus the command value IP is separated into positive and negative directions, the converters 131, 132, are independently controlled, the current reference values 101 is separated into positive and negative sides, and converted into rectangular waves. The phase is reduced during nonconduction period of the both converters 131, 132 to eliminate the anti-parallel shortcircuit. |
