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公开(公告)号：US20090322290A1
公开(公告)日：2009-12-31
申请号：US12147654
申请日：2008-06-27
Applicant: Mahesh J. Shah
Inventor： Mahesh J. Shah
IPC: H02P9/14
CPC classification number: H02K21/042
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20080136294A1
公开(公告)日：2008-06-12
申请号：US11634607
申请日：2006-12-06
Applicant: Theodore Clifton Powers , Michael Raymond Hernden , Mahesh J. Shah
Inventor： Theodore Clifton Powers , Michael Raymond Hernden , Mahesh J. Shah
CPC classification number: H02K21/029 , H02K16/02
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US5880571A
公开(公告)日：1999-03-09
申请号：US927852
申请日：1997-09-11
Applicant: George H. Seffernick , Mahesh J. Shah
Inventor： George H. Seffernick , Mahesh J. Shah
CPC classification number: H02P25/20
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US07642683B2
公开(公告)日：2010-01-05
申请号：US11634607
申请日：2006-12-06
Applicant: Theodore Clifton Powers , Michael Raymond Hernden , Mahesh J. Shah
Inventor： Theodore Clifton Powers , Michael Raymond Hernden , Mahesh J. Shah
IPC: H02K16/00
CPC classification number: H02K21/029 , H02K16/02
Abstract: 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.
Abstract translation: 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。
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5.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
Applicant: Derrick N. Walton , Clarence F. Dolan , Mahesh J. Shah
Inventor： Derrick N. Walton , Clarence F. Dolan , Mahesh J. Shah
CPC classification number: H02K19/365 , H02K19/26 , H02K19/36 , H02P9/302
Abstract: 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.
Abstract translation: 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。
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Patent Agency Ranking
公开(公告)号：US4093867A
公开(公告)日：1978-06-06
申请号：US736036
申请日：1976-10-27
Applicant: Mahesh J. Shah , Joseph P. Mallozzi
Inventor： Mahesh J. Shah , Joseph P. Mallozzi
CPC classification number: G08B29/145 , G01N21/274
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US08148866B2
公开(公告)日：2012-04-03
申请号：US12147654
申请日：2008-06-27
Applicant: Mahesh J. Shah
Inventor： Mahesh J. Shah
IPC: H02K3/00
CPC classification number: H02K21/042
Abstract: 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.
Abstract translation: 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。
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8.发明授权公开(公告)号：US08014179B2
公开(公告)日：2011-09-06
申请号：US12128647
申请日：2008-05-29
Applicant: Weiwei Qi , Mahesh J. Shah
Inventor： Weiwei Qi , Mahesh J. Shah
IPC: H02M5/45
CPC classification number: H02P9/48 , H02M3/3378 , H02M7/2176 , H02P9/14 , H02P9/307 , H02P2101/30
Abstract: In typical commercial/aerospace applications, synchronous generators provide power to both the high voltage and the low voltage loads. This disclosure describes a method of regulating the output voltage for all of the loads.
Abstract translation: 在典型的商业/航空应用中，同步发电机为高压和低压负载提供电力。 本公开描述了一种调节所有负载的输出电压的方法。
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公开(公告)号：US07439715B2
公开(公告)日：2008-10-21
申请号：US11439480
申请日：2006-05-22
Applicant: Gregory I. Rozman , Mahesh J. Shah , Alan E. King
Inventor： Gregory I. Rozman , Mahesh J. Shah , Alan E. King
IPC: H02P9/00
CPC classification number: H02J7/1438 , H02M3/1582 , H02P9/307
Abstract: A power generating system provides high voltage AC power and low voltage DC power using a single generator. The generator includes a rotor and a stator that is wound with a first winding and a second winding. The first winding has a greater number of turns than the second winding and generates high voltage AC power in response to the rotating magnetic field created by the rotor. The second winding generates low voltage AC power in response to the rotating magnetic field created by the rotor. The low voltage AC power is converted to low voltage DC power by a rectifier. The low voltage DC power is further controlled by a DC-DC converter to generate controlled DC power. A controller monitors the DC power generated by the DC-DC converter, and generates pulse width modulation signals that are provided to the DC-DC converter, selectively increasing or decreasing the controlled DC power provided by the DC-DC converter.
Abstract translation: 发电系统使用单个发电机提供高压交流电源和低压直流电源。 该发电机包括一个转子和一个用第一绕组和第二绕组缠绕的定子。 第一绕组具有比第二绕组更大的匝数，并且响应于由转子产生的旋转磁场而产生高压AC电力。 第二绕组响应于由转子产生的旋转磁场产生低压AC电力。 低压交流电源由整流器转换成低压直流电源。 低压直流电源由DC-DC转换器进一步控制，以产生受控的直流电源。 控制器监视由DC-DC转换器产生的DC电力，并产生提供给DC-DC转换器的脉冲宽度调制信号，选择性地增加或减少由DC-DC转换器提供的受控直流电力。
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10.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
Applicant: Mahesh J. Shah , George H. Seffernick
Inventor： Mahesh J. Shah , George H. Seffernick
CPC classification number: H02P9/48 , H02P2101/30 , H02P2201/09 , H02P2201/11
Abstract: 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.
Abstract translation: 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。
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