A motor device includes a first stator connected to a first inverter and a second stator connected to a second inverter. A motor controller controls a supply of first three-phase currents from the first inverter to the first stator, and controls a supply of second three-phase currents from the second inverter to the second stator. Each of the first three-phase currents has a same-phase first compensation current superposed thereon, and each of the second three-phase currents has a same-phase second compensation current superposed thereon. The second compensation current has the same phase as the first compensation current and is reversely polarized relative to the first compensation current.