| 摘要 |
PROBLEM TO BE SOLVED: To provide a matrix converter device that reduces a common mode current flowing in a motor while reducing high-frequency noise to the power-supply side. SOLUTION: The matrix converter device includes an input single-phase AC reactor 2, whose one end is connected to each phase of a three-phase AC power supply 1 and whose the other end is connected to the input side of a matrix converter main circuit 5, and a ground capacitor 3 whose one end is connected to the input side of the matrix converter main circuit 5 and whose the other end is grounded. The device also includes an input capacitor 4, whose one end is connected to the other end of the input single-phase AC reactor 2 and whose the other end is star-connected, an output three-phase AC reactor 6, whose one end is serially connected to the output side of the matrix converter main circuit 5, an output three-phase common mode choke coil 7, whose one end is serially connected to each phase of the other end of the output three-phase AC reactor 6 and whose the other end is connected to a load 9, and an output capacitor 8 whose one end is connected to the other end of the output three-phase common mode choke coil 7 and whose the other end is star-connected. COPYRIGHT: (C)2008,JPO&INPIT
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