Interleaved parallel inverters with integrated filter inductor and interphase transformer
AssigneeSchneider Electric Solar Inverters USA, Inc.
InventorsRobert Pasterczyk, Jason Elliott, Zbigniew Wolanski, Benjamin Wun Wang Tam
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Abstract
A power electronics system, comprising a first inverter configured to receive DC power from a power source and a second inverter configured to receive DC power from the power source is provided. The system includes a first output inductor connected in series to an output of the first inverter, a second output inductor connected in series to an output of the second inverter, a coupling inductor configured to receive current from the first output inductor and the second output inductor, and an AC power output.
Claims20
A power electronics system, comprising:
- a first inverter configured to receive direct current (DC) power from a power source;
- a second inverter configured to receive DC power from the power source;
- a first output inductor connected in series to an alternating current (AC) output of the first inverter;
- a second output inductor connected in series to an AC output of the second inverter;
- a coupling inductor configured to receive current from the first output inductor and the second output inductor;
- and
- an AC power output to provide current from the coupling inductor.
A power electronics system, comprising:
- a first multi-phase inverter configured to receive direct current (DC) power from a power source;
- a second multi-phase inverter configured to receive DC power from the power source;
- a first plurality of output inductors, each of the first plurality of output inductors connected in series to an output phase of the first multi-phase inverter;
- a second plurality of output inductors, each of the second plurality of output inductors connected in series to an output phase of the second multi-phase inverter;
- a plurality of coupling inductors, each of the plurality of coupling inductors configured to receive current from a respective output inductor of the first plurality of output inductors and a respective output inductor of the second plurality of output inductors;
- and
- a multi-phase alternating current (AC) power output to provide current from the plurality of coupling inductors.
An inductor coil winding comprising:
- a first terminal;
- a series of concentric turns in a first plane, the series of concentric turns leading in from the first terminal and having a diameter allowing for an opening within the series of concentric turns;
- a series of elongated turns in a second plane, the series of elongated turns leading in from the series of concentric turns and having a length greater than the diameter of the series of concentric turns, and allowing for an opening within the series of elongated turns;
- and
- a second terminal, the second terminal leading out form the series of elongated turns.
A filter assembly comprising:
- a first self-inductance core;
- a second self-inductance core;
- a coupler core;
- a first plurality of inductor coil windings, each of the first plurality of inductor coil windings having a series of first turns around the first self-inductance core, and a series of second turns around the first self-inductance core and the coupler core;
- and
- a second plurality of inductor coil windings, each of the second plurality of inductor coil windings having a series of first turns around the second self-inductance core, and a series of second turns around the second self-inductance core and the coupler core.
Dependencies are inferred from the claim text.