The device has a direct current (DC) static converter provided for transformation of direct voltage (UDC1) at a DC circuit (17) into intermediate circuit direct voltage of the DC intermediate circuit. A DC current filter (10) forms a tap for a neutral poin...

It allows connecting or disconnecting polyphase conversion stages (2a, 2b), comprising at least two polyphase back-to-back conversion stages (2a, 2b) connected between a rotary electric machine (3) and the power grid (4), each of these stages having two co...