Alternator/inverter with dual H-bridge and automatic voltage regulation

A synchronous alternator/inverter apparatus, comprising:

• a first three phase generator;
• a first active rectifier circuit for rectifying an output of said first three phase generator;
• a first inverter responsive to an output of said first rectifier circuit for providing a first AC output;
• a first DC bus coupled across said first rectifier circuit and said first inverter;
• a first DC bus capacitor coupled across said first DC bus;
• a second three phase generator;
• a second active rectifier circuit for rectifying an output of said second three phase generator;
• a second inverter responsive to an output of said second rectifier circuit for providing a second AC output;
• a second DC bus coupled across said second rectifier circuit and said first inverter;
• a second DC bus capacitor coupled across said second DC bus;
• a controller for controlling operation of said first and second inverters;
• a first voltage regulation circuit for monitoring a first DC bus voltage across said first DC bus capacitor and controlling said first active rectifier circuit to maintain said first DC bus voltage within a first predetermined range;
• and
• a second voltage regulation circuit for monitoring a second DC bus voltage across said second DC bus capacitor and controlling said second active rectifier circuit to maintain said second DC bus voltage within a second predetermined range.

A synchronous alternator/inverter apparatus, comprising:

• a first three phase generator;
• a first active rectifier circuit for rectifying an output of said first three phase generator;
• a first inverter responsive to an output of said first rectifier circuit for providing a first AC output;
• a first DC bus coupled across said first rectifier circuit and said first inverter;
• a first DC bus capacitor coupled across said first DC bus;
• a second three phase generator;
• a second active rectifier circuit for rectifying an output of said second three phase generator;
• a second inverter responsive to an output of said second rectifier circuit for providing a second AC output;
• a second DC bus coupled across said second rectifier circuit and said first inverter;
• a second DC bus capacitor coupled across said second DC bus;
• a controller for controlling operation of said first and second inverters;
• a first voltage regulation circuit including a first microcontroller and a first current sensing circuit for monitoring a first DC bus voltage across said first DC bus capacitor and controlling said first active rectifier circuit to maintain said first DC bus voltage within a first predetermined range;
• and
• a second voltage regulation circuit including a second microcontroller and a second current sensing circuit for monitoring a second DC bus voltage across said second DC bus capacitor and controlling said second active rectifier circuit to maintain said second DC bus voltage within a second predetermined range.

An alternator/inverter apparatus, comprising:

• a poly-phase generator;
• a rectifier circuit for rectifying an output of said poly-phase generator;
• an inverter responsive to an output of said rectifier circuit for providing an AC output;
• a DC bus coupled across said rectifier circuit and said inverter;
• a DC bus capacitor coupled across said DC bus;
• a controller for controlling operation of said inverter;
• and
• a voltage regulation circuit for monitoring a DC bus voltage across said DC bus capacitor and controlling said rectifier circuit to maintain said DC bus within a predetermined voltage range.