System for converting at least one direct-current electric input to a multi-phase alternating-current electric output

摘要

The system has three electromagnetic coupling coils (14) connected to other electromagnetic coupling coils (8) and wound around a core (10) distinct from that of the latter coils. The coils of a same core correspond to a same phase of each intermediate alternating current. The coils arranged such that a direction of the common mode flux generated by the latter coils is opposite to a direction of the common mode flux generated by the former coils. Output terminals (U, V, W) are connected to ends of the former coils corresponding to a same phase of the intermediate alternating currents.