-
公开(公告)号：US5880571A
公开(公告)日：1999-03-09
申请号：US927852
申请日：1997-09-11
CPC分类号： H02P25/20
摘要： A method of and system for controlling an induction motor detects input frequency to the motor and connects windings of the motor in one of a plurality of configurations in dependence upon the detected frequency.
摘要翻译： 用于控制感应电动机的方法和系统根据检测到的频率来检测对电动机的输入频率，并将电动机的绕组以多个配置之一连接。
-
2.发明授权Buck/boost method of voltage regulation for a permanent magnet generator (PMG) 失效永磁发电机（PMG）调压降压/升压方法公开(公告)号：US07224147B2
公开(公告)日：2007-05-29
申请号：US11185422
申请日：2005-07-20
CPC分类号： H02P9/48 , H02P2101/30 , H02P2201/09 , H02P2201/11
摘要： A voltage regulation system maintains the output voltage of a permanent magnet generator at an essentially constant level. The stator coils located within the permanent magnet generator are divided into a number of sub-coils. A buck/boost voltage can be applied to selected sub-coils such that the output voltage generated by the permanent magnet generator is increased or decreased. A number of switches are connected to the sub-coils to allow the sub-coils to be connected in a number of different configurations. Connecting the sub-coils in a particular configuration and applying a buck/boost voltage to selected sub-coils based on the monitored output voltage allows the voltage regulation system to maintain an essentially constant output voltage.
摘要翻译： 电压调节系统将永磁发电机的输出电压维持在基本恒定的水平。 位于永磁发电机内的定子线圈被分成多个子线圈。 可以对所选择的子线圈施加降压/升压电压，使得由永磁发电机产生的输出电压增加或减小。 多个开关连接到子线圈以允许子线圈以多种不同的配置连接。 在特定配置中连接子线圈，并且基于监视的输出电压将降压/升压电压施加到所选择的子线圈，允许电压调节系统保持基本恒定的输出电压。
-
3.发明授权Buck/boost method of voltage regulation for a permanent magnet generator (PMG) 失效永磁发电机（PMG）调压降压/升压方法公开(公告)号：US07408327B2
公开(公告)日：2008-08-05
申请号：US11788953
申请日：2007-04-23
CPC分类号： H02P9/48 , H02P2101/30 , H02P2201/09 , H02P2201/11
摘要： The output voltage generated by permanent magnet generator (PMG) is regulated by controlling a buck/boost voltage applied to selected sub-coils within the PMG. The PMG includes a number of stator coils that are each divided into a number of sub-coils. A buck/boost voltage source generates a buck/boost voltage, and a controller connected to monitor the output voltage generated by the PMG selectively applies the buck/boost voltage to selected sub-coils based on the monitored output voltage. In this way, the controller is able to regulate the output voltage by selectively controlling the buck/boost voltage applied to the selected sub-coils.
摘要翻译： 由永磁发电机（PMG）产生的输出电压通过控制施加到PMG内选定子线圈的降压/升压电压来调节。 PMG包括多个定子线圈，每个定子线圈被分成多个子线圈。 降压/升压电压源产生降压/升压电压，并且连接以监视PMG产生的输出电压的控制器基于监视的输出电压选择性地将降压/升压电压施加到所选择的子线圈。 以这种方式，控制器能够通过选择性地控制施加到所选择的子线圈的降压/升压电压来调节输出电压。
-
4.发明授权
公开(公告)号：US5977648A
公开(公告)日：1999-11-02
申请号：US734645
申请日：1996-10-21
CPC分类号： H02P9/305 , H02K7/1823 , H02P2101/30
摘要： An electric power generating system comprises a low reactance, large airgap permanent magnet generator driven by a hydraulic motor to generate a poly-phase AC output voltage. Because the permanent magnet generator is a low reluctance, large airgap machine, the output voltage regulation is low over the desired loading range of the system. The output voltage is controlled within acceptable limits by trimming the output speed of the hydraulic motor through the use of a servovalve. The control for the servovalve senses a parameter of output power and generates a speed control signal to compensate for deviations in the generator output. The system includes protection circuitry which monitors at least one parameter of the output power. This protection circuitry generates an output protection signal in response to a deviation in the monitored parameter which exceeds predetermined limits. In response to this signal, an on/off solenoid, which is coupled between the hydraulic motor and the external source of hydraulic power, terminates the flow of hydraulic power to the hydraulic motor. This results in a termination of the power generation by the permanent magnet generator. In one embodiment of the instant invention, the permanent magnet generator includes a second stator winding which is used to generate a second output voltage. A rectification circuit is coupled to this second output to transform the voltage produced thereon to a dc voltage to power dc loads.
摘要翻译： 一种发电系统包括由液压马达驱动的低电抗大气隙永磁发电机，以产生多相交流输出电压。 由于永磁发电机是磁阻较小的气隙机，输出电压调节低于系统所需的负载范围。 通过使用伺服阀调节液压马达的输出速度，将输出电压控制在可接受的限度内。 伺服阀的控制检测输出功率的参数，并产生速度控制信号，以补偿发电机输出的偏差。 该系统包括监视输出功率的至少一个参数的保护电路。 该保护电路响应于超过预定极限的监视参数的偏差而产生输出保护信号。 响应于该信号，联接在液压马达和外部液压动力源之间的开/关螺线管终止液压马达的液压动力的流动。 这导致永磁发电机的发电终止。 在本发明的一个实施例中，永磁发电机包括用于产生第二输出电压的第二定子绕组。 整流电路耦合到该第二输出以将其上产生的电压变换为直流电压以对直流负载供电。
-
5.发明授权Removable Hall-Effect sensor system for stator windings in a rotating electric machine 有权用于旋转电机定子绕组的可移动霍尔效应传感器系统公开(公告)号：US07263905B2
公开(公告)日：2007-09-04
申请号：US11047335
申请日：2005-01-28
IPC分类号： G01L3/10
CPC分类号： H02K29/08
摘要： A Hall-Effect sensor assembly for a rotating electric machine comprises a thin, removable tubular substrate with Hall-Effect sensors and associated connection wiring mounted on it that slips underneath the wound stator end turns of the stator for the rotating electric machine to make the assembly easily removable for installation and repair.
摘要翻译： 用于旋转电机的霍尔效应传感器组件包括具有霍尔效应传感器和安装在其上的相关联的连接布线的薄的可移除的管状基板，其在用于旋转电机的定子的缠绕的定子端匝下滑动以使组件 容易拆卸安装和维修。
-
公开(公告)号：US20090322290A1
公开(公告)日：2009-12-31
申请号：US12147654
申请日：2008-06-27
申请人： Mahesh J. Shah
发明人： Mahesh J. Shah
IPC分类号： H02P9/14
CPC分类号： H02K21/042
摘要： A permanent magnet rotor for an electrical generator has pole pieces with permanent magnets. A control coil is associated with the pole pieces. A current flow through the coils is controlled to achieve a desired output voltage at an output for the generator.
摘要翻译： 用于发电机的永磁转子具有带有永磁体的极片。 控制线圈与极片相关联。 控制通过线圈的电流以在发生器的输出处获得期望的输出电压。
-
公开(公告)号：US20080136294A1
公开(公告)日：2008-06-12
申请号：US11634607
申请日：2006-12-06
CPC分类号： H02K21/029 , H02K16/02
摘要： A self-regulating permanent magnet device has a first rotor segment and second rotor segment, each supporting a set of permanent magnets, wherein the position of the second rotor segment relative to the first rotor segment is modified based on the speed of the self-regulating permanent magnet device. By modifying the position of the second rotor segment relative to the first rotor segment, the alignment between their respective sets of permanent magnets, and therefore, the electromotive force (emf) generated in the stator coils is regulated. The position of the second rotor segment is defined by the connection of a torsion spring between the first rotor segment and second rotor segment and a reactionary torque device connected to the second rotor segment. The torsion spring creates a spring force that acts to maintain the alignment between the first rotor segment and the second rotor segment. The reactionary torque device provides reactionary torque that is proportional to the speed of the self-regulating permanent magnet device and opposes the spring force. As the speed of the self-regulating permanent magnet device increases, the reactionary torque causes the second rotor segment to rotate, thereby creating a misalignment between the first rotor segment and second rotor segment.
摘要翻译： 自调节永磁体装置具有第一转子段和第二转子段，每个第一转子段和第二转子段支撑一组永磁体，其中第二转子段相对于第一转子段的位置基于自调节的速度而被修改 永磁装置。 通过修改第二转子段相对于第一转子段的位置，调节它们各组永磁体之间的对准，并因此调整定子线圈中产生的电动势（emf）。 第二转子段的位置由第一转子段和第二转子段之间的扭转弹簧的连接以及连接到第二转子段的反作用扭矩装置来限定。 扭转弹簧产生用于保持第一转子段和第二转子段之间的对准的弹簧力。 反作用扭矩装置提供与自调节永磁体装置的速度成比例的反作用扭矩，并且与弹簧力相反。 随着自调节永磁体装置的速度增加，反作用转矩使第二转子段转动，由此在第一转子段和第二转子段之间产生未对准。
-
公开(公告)号：US07642683B2
公开(公告)日：2010-01-05
申请号：US11634607
申请日：2006-12-06
IPC分类号： H02K16/00
CPC分类号： H02K21/029 , H02K16/02
摘要： A self-regulating permanent magnet device has a first rotor segment and second rotor segment, each supporting a set of permanent magnets, wherein the position of the second rotor segment relative to the first rotor segment is modified based on the speed of the self-regulating permanent magnet device. By modifying the position of the second rotor segment relative to the first rotor segment, the alignment between their respective sets of permanent magnets, and therefore, the electromotive force (emf) generated in the stator coils is regulated. The position of the second rotor segment is defined by the connection of a torsion spring between the first rotor segment and second rotor segment and a reactionary torque device connected to the second rotor segment. The torsion spring creates a spring force that acts to maintain the alignment between the first rotor segment and the second rotor segment. The reactionary torque device provides reactionary torque that is proportional to the speed of the self-regulating permanent magnet device and opposes the spring force. As the speed of the self-regulating permanent magnet device increases, the reactionary torque causes the second rotor segment to rotate, thereby creating a misalignment between the first rotor segment and second rotor segment.
摘要翻译： 自调节永磁体装置具有第一转子段和第二转子段，每个第一转子段和第二转子段支撑一组永磁体，其中第二转子段相对于第一转子段的位置基于自调节的速度而被修改 永磁装置。 通过修改第二转子段相对于第一转子段的位置，调节它们各组永磁体之间的对准，并因此调整定子线圈中产生的电动势（emf）。 第二转子段的位置由第一转子段和第二转子段之间的扭转弹簧的连接以及连接到第二转子段的反作用扭矩装置来限定。 扭转弹簧产生用于保持第一转子段和第二转子段之间的对准的弹簧力。 反作用扭矩装置提供与自调节永磁体装置的速度成比例的反作用扭矩，并且与弹簧力相反。 随着自调节永磁体装置的速度增加，反作用转矩使第二转子段转动，由此在第一转子段和第二转子段之间产生未对准。
-
9.发明授权Brushless power generating system having reduced conducted emissions in output power 失效无刷发电系统具有减少输出功率的传导发射
公开(公告)号：US5023540A
公开(公告)日：1991-06-11
申请号：US454968
申请日：1989-12-22
CPC分类号： H02K19/365 , H02K19/26 , H02K19/36 , H02P9/302
摘要： A brushless electrical power generating system (100) in accordance with the invention includes an exciter (14) for producing alternating current from an exciter rotor; a rectifier (20) mounted for rotation with the exciter rotor for producing a rectified control current from the AC current; a common mode inductor (112), coupled to the control current, for cancelling common mode noise components within the rectified control current; and a main generator (22), having a rotating field winding (24) mounted on a main generator rotor excited by the control current and producing an alternating current power output from a stator.
摘要翻译： 根据本发明的无刷电力发电系统（100）包括用于从励磁机转子产生交流电的励磁机（14）; 整流器（20），其安装成与所述励磁机转子一起旋转，用于从所述AC电流产生整流的控制电流; 耦合到控制电流的共模电感器（112），用于消除整流控制电流内的共模噪声分量; 和主发电机（22），其具有安装在由所述控制电流激励的主发电机转子上的旋转励磁绕组（24），并产生从定子输出的交流电力。
-
公开(公告)号：US4093867A
公开(公告)日：1978-06-06
申请号：US736036
申请日：1976-10-27
申请人： Mahesh J. Shah , Joseph P. Mallozzi
发明人： Mahesh J. Shah , Joseph P. Mallozzi
CPC分类号： G08B29/145 , G01N21/274
摘要： Apparatus for automatically calibrating smoke detectors within desired ranges of values of smoke obscuration, and thereafter retesting them for valid calibration; in accomplishing this the smoke obscuration is continuously increased at a predetermined uniform rate.
摘要翻译： 用于将烟雾探测器自动校准在烟雾遮蔽值的期望范围内，然后重新测试以进行有效校准的装置; 在实现这一点时，烟雾遮蔽以预定的均匀速率不断增加。
-
-
-
-
-
-
-
-
-
搜索结果
28 条记录 (耗时 0.016 秒)
