A multiple direct current voltage source inverter to supply power to an alternating current power system, comprising: a plurality of full bridge inverters, each having a primary node and a secondary node, each of said full bridge inverters having positive and negative node, each of said full bridge inverters having a voltage supporting device electrically connected in a parallel relationship between said positive node and said negative node and a direct current source connected between the positive and negative nodes; at least one stacked inverter phase, each stacked inverter phase having a plurality of said full bridge inverters, each of said full bridge inverters in each stacked inverter phase interconnected in a series relationship with said secondary node of one of said full bridge inverters connected to said primary node of another full bridge inverter, said series interconnection defining a first full bridge inverter and a last full bridge inverter, each phase having an input node at said primary node of said first full bridge inverter and an output node at said secondary node of said last full bridge inverter (BIUn); a local controller coupled to each full bridge inverter providing the control signals to each full bridge inverter to output an approximate nearly sinusoidal voltage waveform, each local controller coupled to a communication transceiver; and one or more (Q1, Q2, Q3, Q4) or relays connected in series between the primary and/or secondary conductor of each said stacked inverter phase and the power grid; and a system controller which is adapted to communicate with each local controller communication transceiver; the system level controller is adapted to generated a system control signal for configuration, activation, deactivation and operating mode selection of said local controller, characterized in that the system controller includes at least two parallel switches (528, 530) connected in series between a stacked inverter phase and the grid, each of said switches serving as disconnect means of the stacked inverter phase and the grid, where at least one of the switches being series connected to a current limiting device; where said switch provides a conduction path serving as a current limited phase reference signal from an alternating current line voltage for one or more local controllers during system initialization; the system controller is adapted to calculate and communicate start-up voltage and operating voltage range to each basic inversion unit; the system controller is adapted to determine and communicate control commands for activation and deactivation of each basic inversion unit; and the system controller is adapted to determine and communicate control commands for activation and deactivation of the hole voltage source inverter. a plurality of full bridge inverters, each having a primary node and a secondary node, each of said full bridge inverters having positive and negative node, each of said full bridge inverters having a voltage supporting device electrically connected in a parallel relationship between said positive node and said negative node and a direct current source connected between the positive and negative nodes; at least one stacked inverter phase, each stacked inverter phase having a plurality of said full bridge inverters, each of said full bridge inverters in each stacked inverter phase interconnected in a series relationship with said secondary node of one of said full bridge inverters connected to said primary node of another full bridge inverter, said series interconnection defining a first full bridge inverter and a last full bridge inverter, each phase having an input node at said primary node of said first full bridge inverter and an output node at said secondary node of said last full bridge inverter (BIUn); a local controller coupled to each full bridge inverter providing the control signals to each full bridge inverter to output an approximate nearly sinusoidal voltage waveform, each local controller coupled to a communication transceiver; and one or more (Q1, Q2, Q3, Q4) or relays connected in series between the primary and/or secondary conductor of each said stacked inverter phase and the power grid; and a system controller which is adapted to communicate with each local controller communication transceiver; the system level controller is adapted to generated a system control signal for configuration, activation, deactivation and operating mode selection of said local controller, characterized in that the system controller includes at least two parallel switches (528, 530) connected in series between a stacked inverter phase and the grid, each of said switches serving as disconnect means of the stacked inverter phase and the grid, where at least one of the switches being series connected to a current limiting device; where said switch provides a conduction path serving as a current limited phase reference signal from an alternating current line voltage for one or more local controllers during system initialization; the system controller is adapted to calculate and communicate start-up voltage and operating voltage range to each basic inversion unit; the system controller is adapted to determine and communicate control commands for activation and deactivation of each basic inversion unit; and the system controller is adapted to determine and communicate control commands for activation and deactivation of the hole voltage source inverter.