| 摘要 |
In order to provide noise reduction that takes into consideration the noise levels felt by people, by using a method for reducing output current noise in a power conversion device, this power conversion device comprises: a carrier frequency setting unit that switches a plurality of carrier frequencies; a carrier frequency limiting unit that limits a prescribed range of carrier frequencies; a carrier frequency generation unit that generates a carrier frequency used in PMW generation, from the carrier frequency setting unit and the carrier frequency limiting unit; a PMW generation unit that generates PMW output signals using the carrier frequency generated by the carrier frequency generation unit; and an AC conversion unit that outputs AC voltage using the PMW output signals. As a result, a power conversion device is provided that is capable of reducing the noise felt by people. |
