| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power conversion device which converts an AC electric power supplied from power sources of a plurality of phases and supplies the electric power to a load of a plurality of phases stably and which can be miniaturized in a structure in which the neutral point of power sources of a plurality of phases and the neutral point of loads of a plurality of phases are connected, and to provide a power supply system. <P>SOLUTION: The power conversion device 101, in the power supply system 201 in which the neutral point NP1 of the power sources EU, EV, EW of a plurality of phases and the neutral point NP2 of the loads LA, LB, LC of a plurality of phases are connected to a common stable potential, includes a matrix converter MX, which converts the AC electric power of each phase supplied from the power sources EU, EV, EW to supply electric power to each of the loads LA, LB, LC, and a control section 10, which detects a zero-phase voltage at the neutral point NP2 of the loads LA, LB, LC of a plurality of phases and controls the power conversion of the matrix converter MX based on the detected zero-phase voltage. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
