| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power converter capable of converting power to high-quality power, and a method for controlling the same. <P>SOLUTION: A power converter comprises: a power converting unit 10 having a plurality of switching elements; an input current command generating unit 23 for generating input current commands Ir<SP POS="POST">*</SP>, Is<SP POS="POST">*</SP>, and It<SP POS="POST">*</SP>to control current that comes from a three-phase AC current power supply 2 and is input to the power converting unit 10; and a gate signal calculator 24 for outputting a gate signal Sg to drive the plurality of switching elements, on the basis of the input current commands Ir<SP POS="POST">*</SP>, Is<SP POS="POST">*</SP>, and It<SP POS="POST">*</SP>. The input current command generating unit 23 detects an oscillating component included in the voltage of the three-phase AC current power supply 2, generates a positive phase oscillation compensation component for suppressing a positive phase component of the oscillating component and a negative phase oscillation compensation component for suppressing a negative phase component of the oscillating component on the basis of the detected oscillating component, and outputs the input current commands Ir<SP POS="POST">*</SP>, Is<SP POS="POST">*</SP>, and It<SP POS="POST">*</SP>including the positive phase oscillation compensation component and the negative phase oscillation compensation component. <P>COPYRIGHT: (C)2013,JPO&INPIT |
