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US 2019/0190400 A1Published application
Power conversion system and method
AssigneeEss Tech, Inc.
InventorAaron Vanderzaden
Life of this patent
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Abstract
Systems and methods for operating a power conversion system that includes a sole DC/DC converter are described. The systems and methods reduce a total number of DC/DC converters in a power system that includes an electric energy storage device and a photovoltaic array. The system and method provide for transferring electrical charge from the photovoltaic array and the electric energy storage device to an alternating current stationary electrical grid via a DC bus and an inverter.
Claims20
An electric power conversion system, comprising:
- a direct current (DC) bus;
- a DC power source directly electrically coupled to the DC bus;
- an inverter directly coupled to the DC bus;
- an electric energy storage device;
- and
- a sole DC/DC converter electrically coupled to the DC bus and the electric energy storage device.
3 more elements
An electric power conversion system, comprising:
- a direct current (DC) bus;
- a DC power source directly electrically coupled to the DC bus;
- an inverter directly coupled to the DC bus;
- a battery;
- a sole DC/DC converter electrically coupled to the DC bus and the battery;
- and
- a controller, the controller electrically coupled to the DC power source and the battery, the controller including executable instructions stored in non-transitory memory to operate the sole DC/DC converter in a buck mode in response to a first operating condition of the DC power source, and to operate the DC/DC converter in a boost mode in response to a second operating condition of the DC power source.
4 more elements
A method of electric power conversion, comprising:
- operating a sole DC/DC converter of a power distribution system in a buck mode in response to operating conditions of a photovoltaic array, operating the sole DC/DC converter of the power distribution system in a boost mode in response to operating conditions of the photovoltaic array, the DC/DC converter directly electrically coupled to a DC bus, the photovoltaic array directly coupled to the DC bus, the DC bus directly electrically coupled to an inverter.
Dependencies are inferred from the claim text.