公开(公告)号：US4503673A

公开(公告)日：1985-03-12

申请号：US042496

申请日：1979-05-25

申请人： Charles Schachle ,  Patrick J. Schachle ,  Edward C. Schachle ,  John R. Schachle

发明人： Charles Schachle ,  Patrick J. Schachle ,  Edward C. Schachle ,  John R. Schachle

IPC分类号： F03D7/04 ,  F03D9/00 ,  F03D11/02 ,  H02P9/06 ,  F04B17/02

CPC分类号： F03D7/04 ,  F03D15/00 ,  F03D9/001 ,  F05B2220/706 ,  F05B2260/406 ,  F05B2270/1033 ,  F05B2270/506 ,  Y02E10/723 ,  Y02E10/725

摘要： Normally feathered propeller blades of a wind power generating system unfeather in response to the actuation of a power cylinder that responds to actuating signals. Once operational, the propellers generate power over a large range of wind velocities. A maximum power generation design point signals a feather response of the propellers so that once the design point is reached no increase in power results, but the system still generates power. At wind speeds below this maximum point, propeller speed and power output optimize to preset values. The propellers drive a positive displacement pump that in turn drives a positive displacement motor of the swash plate type. The displacement of the motor varies depending on the load on the system, with increasing displacement resulting in increasing propeller speeds, and the converse. In the event of dangerous but not clandestine problems developing in the system, a control circuit dumps hydraulic pressure from the unfeathering cylinder resulting in a predetermined, lower operating pressure produced by the pump. In the event that a problem of potentially clandestine consequence arises, the propeller unfeathering cylinder immediately unloads. Upon startup, a bypass around the motor is blocked, applying a pressure across the motor. The motor drives the generator until the generator reaches a predetermined speed whereupon the generator is placed in circuit with a utility grid and permitted to motor up to synchronous speed.

摘要翻译： 响应于对致动信号作出响应的动力缸的致动，风力发电系统的正常羽状螺旋桨叶片不响应。 一旦运行，螺旋桨在大范围的风速下发电。 最大发电设计点表示螺旋桨的羽毛响应，使得一旦设计点达到，则功率不会增加，但系统仍然发电。 在低于该最大点的风速下，螺旋桨速度和功率输出优化到预设值。 推进器驱动一个容积式泵，这个驱动泵又驱动斜盘式的正位移电动机。 电机的位移取决于系统上的负载，随着位移的增加，螺旋桨的速度也会增加，相反。 在系统中发生危险但不是秘密的问题的情况下，控制回路将来自不正常气缸的液压压力导致由泵产生的预定的较低的操作压力。 如果发生潜在的秘密后果的问题，螺旋桨不起泡的立即卸载。 启动时，电机周围的旁路被堵塞，在电机上施加压力。 电机驱动发电机，直到发电机达到预定的速度，然后发电机与公用电网放置在电路中，允许电机达到同步转速。

公开(公告)号：US4323331A

公开(公告)日：1982-04-06

申请号：US033894

申请日：1979-04-27

申请人： Charles Schachle ,  Patrick J. Schachle ,  Edward C. Schachle ,  John R. Schachle

发明人： Charles Schachle ,  Patrick J. Schachle ,  Edward C. Schachle ,  John R. Schachle

IPC分类号： E04H12/00 ,  E04B1/34 ,  E04H12/10 ,  E04H12/18 ,  F03D11/04

CPC分类号： E04H12/18 ,  E04H12/10 ,  F03D13/20 ,  F05B2240/9121 ,  Y02E10/728

摘要： A windmill tower supports a propeller and a platform that in turn supports a propeller feather control system and a generator system. The entire tower rotates at its base under changes in wind direction so the rotating propeller is constantly maintained upwind of the tower. The tower is a rigid structure that withstands cyclic thrust and torque loading sufficiently to reduce resonant vibrations of the tower as the propeller rotates under the influence of the wind. The resonant frequency of the tower can be higher than the passing frequency of the rotating propeller blades. The tower includes a pair of generally upright fore legs that converge upwardly toward a first apex on the propeller axis of rotation near the front of the platform immediately behind the propeller hub. A diagonal bracing strut extends downwardly from the first apex away from the plane of the fore legs and toward the rear of the tower. The bottoms of the fore legs and the diagonal bracing strut are rigidly interconnected by base plane truss members. A pair of upwardly converging aft legs extend diagonally upwardly from the bottoms of the fore legs toward a second apex aft of the first apex at the rear of the platform. At regular vertical intervals, stiffening trusses add rigidity to the main upright members of the tower structure. The natural frequency of the tower is raised by the fore legs and the diagonal bracing strut being interconnected in a rigid base plane truss. The diagonal bracing strut resists thrust loading on the tower, and the fore legs and aft legs resist torsional forces produced at the top of the tower.

摘要翻译： 风车塔支撑螺旋桨和平台，该平台又支撑螺旋桨羽毛控制系统和发电机系统。 整个塔在风向变化的基础上旋转，因此旋转的螺旋桨始终保持在塔的上风向上。 该塔是一种刚性结构，可承受循环推力和扭矩负载，以便在风力影响下螺旋桨旋转时减少塔的共振振动。 塔的共振频率可以高于旋转螺旋桨叶片的通过频率。 塔架包括一对大体上直立的前腿，在靠近螺旋桨轮毂后面的平台前部的螺旋桨旋转轴线上朝向第一顶点会聚。 对角支撑支柱从第一顶点向外延伸离开前腿的平面并朝向塔的后部。 前腿和对角支撑支柱的底部通过基座桁架构件刚性地相互连接。 一对向上收敛的后腿从前腿的底部向对角地向上延伸到平台后部的第一顶点的第二顶点。 在正常的垂直间隔，加强桁架增加了塔架结构的主要直立构件的刚性。 塔的固有频率由前腿和对角支撑支柱相互连接在刚性基面桁架中。 对角支撑支柱抵抗塔上的推力负载，前腿和后腿抵抗在塔顶产生的扭转力。