Maximum power tracking among distributed power sources
AssigneeThe Aerospace Corporation
InventorKasemsan Siri
Life of this patent
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Abstract
Optimum power tracking for distributed power sources may be provided by a family of power system architectures having distributed-input series-output (DISO) converters. The DISO converters may be controlled to achieve uniform input voltages across their respective distributed power sources while also tracking an optimum power point of the power system. Each DISO converter may be operably connected to a corresponding power source to form a power-processing channel. A controller may be operably connected to the plurality of DISO converters to control the operation thereof.
Claims21
An apparatus, comprising:
- a plurality of distributed-input series-output (DISO) converters, each of the plurality of DISO converters comprises an input connected to a corresponding power source;
- and
- a controller operably connected to the plurality of DISO converters, wherein the controller is configured to provide uniform input voltages across each power source while tracking an optimum power point, and is further configured to regulate a system distributed input voltage at an optimum peak power voltage determined by a maximum power tracking control when a battery bank voltage signal and a battery charge current are below a preset voltage value and a preset charge current set point value.
An apparatus, comprising:
- a multi-channel distributed-input series-output (DISO) power system comprising outputs that are connected in series across a battery bank;
- and
- a controller configured to apply a plurality of distributed control voltages, wherein each of the plurality of distributed control voltages is connected across a control input port of each independently sourced DISO converter such that uniform input voltage is achieved across each of a plurality of power sources.
An apparatus, comprising:
- a plurality of distributed-input series-output (DISO) converters, each of the plurality of DISO converters comprise an input connected to a corresponding power source, and configured to provide a total output bus current signal fulfilling a system load demand and a total sourcing current signal being a summation of all sourcing current signals drawn from a plurality of distributed power sources;
- and
- a system controller configured to
- receive a plurality of sourcing voltage signals from the plurality of distributed power sources, and generate a plurality of output voltage control signals for equal sourcing voltages at all times,
- receive the total sourcing current signal or the total output bus current signal, and generate a plurality of the output voltage control signals to draw a total maximum power from each of the plurality of distributed power sources when in a maximum power tracking mode, and
- regulate a system output voltage signal received from the plurality of DISO converters when in a non-maximum power tracking mode.
Dependencies are inferred from the claim text.