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公开(公告)号：US20150184633A1
公开(公告)日：2015-07-02
申请号：US14141882
申请日：2013-12-27
Applicant: Google Inc.
Inventor： Damon Vander Lind , Kenneth Jensen
CPC classification number: F03D7/0204 , B64C39/022 , F03D1/02 , F03D7/028 , F03D7/042 , F03D9/25 , F03D9/32 , F05B2240/921 , Y02E10/723 , Y02E10/725
Abstract: Methods and systems described herein relate to power generation control for an aerial vehicle of an air wind turbine (AWT). More specifically, the methods described herein relate to balancing power generation or preventing a component of the aerial vehicle using rotor speed control. An example method may include operating an aerial vehicle in a crosswind-flight mode to generate power. The aerial vehicle may include a rotor configured to help generate the power. While the aerial vehicle is in the crosswind-flight mode the method may include comparing a power output level of the aerial vehicle to a power threshold and, based on the comparison, adjusting operation of the rotor in a manner that generates an optimal amount of power or minimizes overheating of the aerial vehicle.
Abstract translation: 本文描述的方法和系统涉及空气风力涡轮机（AWT）的空中飞行器的发电控制。 更具体地说，本文描述的方法涉及使用转子速度控制平衡发电或防止飞行器的部件。 示例性方法可以包括以侧风飞行模式操作飞行器以产生动力。 飞行器可以包括被配置成帮助产生电力的转子。 当飞行器处于侧风飞行模式时，该方法可以包括将飞行器的功率输出水平与功率阈值进行比较，并且基于比较，以产生最佳功率量的方式调整转子的操作 或最小化飞行器的过热。
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公开(公告)号：US09056677B1
公开(公告)日：2015-06-16
申请号：US14134781
申请日：2013-12-19
Applicant: Google Inc.
Inventor： Kenneth Jensen , Damon Vander Lind
CPC classification number: B64C31/06 , B64C39/022 , B64C2201/148 , F03D7/02 , F03D9/25 , F03D13/20 , F05B2240/921 , Y02E10/723 , Y02E10/728
Abstract: A system may include a tether connected to a ground station. The tether may include at least two bridle segments. The system may further include an aerial vehicle connected to the at least two bridle segments. The system may also include at least one sensor and a control system. The control system may be configured to: a) receive sensor data from the at least one sensor; and b) determine a tether roll angle based on the sensor data. The tether roll angle may represent an angle between the tether and an axis of the aerial vehicle. Optionally, the control system may also be configured to determine a curvature of a path of the aerial vehicle based on the tether roll angle. The control system may additionally be configured to control at least one control surface of the aerial vehicle based on the curvature of the path.
Abstract translation: 系统可以包括连接到地面站的系绳。 系绳可以包括至少两个绷带段。 该系统可以进一步包括连接到该至少两个线段的航空器。 该系统还可以包括至少一个传感器和控制系统。 所述控制系统可以被配置为：a）从所述至少一个传感器接收传感器数据; 和b）基于传感器数据确定系绳侧倾角。 系绳侧倾角可以表示系绳与飞行器的轴线之间的角度。 可选地，控制系统还可以被配置为基于系绳滚角来确定飞行器的路径的曲率。 控制系统还可以被配置为基于路径的曲率来控制飞行器的至少一个控制表面。
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公开(公告)号：US09317043B2
公开(公告)日：2016-04-19
申请号：US14134825
申请日：2013-12-19
Applicant: Google Inc.
Inventor： Kenneth Jensen , Damon Vander Lind
CPC classification number: G05D1/101 , B64C31/06 , B64C39/022 , F03D7/00 , F03D9/007 , F03D9/25 , F03D9/30 , F05B2240/921 , G05D1/0866 , H02S10/12 , Y02E10/723 , Y02E10/725
Abstract: Methods and systems described herein relate to power generation control for an aerial vehicle. An example method may include operating an aerial vehicle in a crosswind-flight orientation substantially along a first flight path to generate power. The first flight path may include a substantially circular path that allows the aerial vehicle to generate the power. While the aerial vehicle is in the crosswind-flight orientation the method may include determining to reduce the power being generated by the aerial vehicle, and responsive to the determination, determining a second flight path that will reduce the power generated by the aerial vehicle when operating on the second flight path. Once determined, the aerial vehicle may operate substantially along the second flight path.
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14.发明申请公开(公告)号：US20150183517A1
公开(公告)日：2015-07-02
申请号：US14620204
申请日：2015-02-12
Applicant: Google Inc.
Inventor： Kenneth Jensen , Erik Christopher Chubb , Damon Vander Lind
CPC classification number: B64C39/022 , B64C2201/021 , B64C2201/148 , F03D5/00 , F03D5/06 , F05B2240/921 , G05D1/0866 , G05D1/101 , Y02E10/70 , Y02E10/725
Abstract: A method may involve operating an aerial vehicle to travel along a first closed path on a tether sphere while oriented in a crosswind-flight orientation. A tether may be connected to the aerial vehicle on a first end and may be connected to a ground station on a second end. Further, the tether sphere may have a radius corresponding to a length of the tether. The method may further involve while the aerial vehicle is in the crosswind-flight orientation, operating the aerial vehicle to travel along a second closed path on the tether sphere, such that a speed of the aerial vehicle is reduced. And the method may involve after or while the speed of the aerial vehicle is reduced, transitioning the aerial vehicle from traveling along the second closed path while in the crosswind-flight orientation to a hover-flight orientation.
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