摘要 |
<p>During charging/discharging modes, inverters (10,20) perform power conver sions between a battery apparatus (B) and mains (92) that is electrically co nnected to neutral points (N1,N2) via power lines (ACL1,ACL2). During the ch arging/discharging modes, an ECU (30) sets the carrier frequencies of the in verters (10,20) to be higher than during a running mode. During the charging /discharging modes, a drive circuit (40) drives the inverters (10,20) by use of gate resistances greater than during the running mode.</p> |