Patent ID: 8054013
Filing Date: 2011-11-08
Classification: B60L,H02J,H02P,Y02E,Y02T,Y04S

Abstract:
1. An electric power control device capable of transmitting and receiving an electric power between a power storage device mounted on a vehicle and an electric load outside the vehicle or a power supply outside the vehicle, comprising: a plurality of alternating-current (AC) electric rotating machines each including star-connected multi-phase windings as stator windings; a plurality of inverters provided corresponding to said plurality of AC electric rotating machines; a plug connectable to said electric load or said power supply; a power line pair provided between said plug and neutral points of the multi-phase windings of the two AC electric rotating machines among said plurality of AC electric rotating machines; and a control unit configured to transmit and receive the electric power between said power storage device and said electric load or said power supply by controlling one of the inverters corresponding to said two AC electric rotating machines without using a pulse width modulation method and controlling the other inverter using said pulse width modulation method.