POWER CONVERSION DEVICE

摘要

Voltage applied to switching elements of a power conversion device is suppressed to be within a predetermined range. A power conversion device (1) includes a leg (31) in which switching elements (41, 42) are connected in series, a leg (32) in which switching elements (43, 44) are connected in series, a reactor (61) connected between the midpoint of the switching elements (41, 42) and the switching-element (43) end not connected to the switching element (44), a reactor (62) connected between the midpoint of the switching elements (43, 44) and the switching-element (42) end not connected to the switching element (41), and a DC power source (10) connected between the switching-element (41) end not connected to the reactor (61) and the terminal of the switching element (44) not connected to the reactor (62). Loads can be connected in parallel to the legs (31, 32).

主权项

1. A power conversion device comprising:
a first leg in which a first switching element and a second switching element that are not on simultaneously are connected in series; a second leg in which a third switching element and a fourth switching element that are not on simultaneously are connected in series; a first reactor connected between a midpoint of the first switching element and the second switching element and a terminal of the third switching element not connected to the fourth switching element; a second reactor connected between a midpoint of the third switching element and the fourth switching element and a terminal of the second switching element not connected to the first switching element; and a DC power source connected between a terminal of the first switching element not connected to the first reactor and a terminal of the fourth switching element not connected to the second reactor; wherein a load is capable of being connected in parallel to the first leg and to the second leg.