Systems and methods for attitude control of tethered aerostats
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United States of America Patent
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Nov 17, 2015
Grant Date -
Mar 28, 2013
app pub date -
Sep 17, 2012
filing date -
Sep 21, 2011
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Abstract
A control system for a tethered aerostat is provided, where up to two rotational and at least one translational degree of freedom are controlled to setpoints through the variation of tether lengths by an actuator system. The term tether includes a single tether, a tether group or a sub section of tether controlled by an individual actuator. Accurate rotational and translational control is essential for the successful operation of an aerostat under several applications, including surveillance, weather monitoring, and power generation. For a given use case, the controller can be constructed and arranged to manage the tradeoff between several key performance characteristics, such as transient performance, steady-state pointing accuracy, tether tension regulation, and power generation.
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