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公开(公告)号：US20130093241A1
公开(公告)日：2013-04-18
申请号：US13421200
申请日：2012-03-15
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
IPC分类号： H02J5/00
CPC分类号： H02J7/02 , H02M7/797 , H02M2001/007 , Y10T307/336 , Y10T307/615 , Y10T307/707
摘要： A dc energy store includes auxiliary systems operable in different modes, including self-supporting, island mode and normal modes. In the self-supporting mode a first controller uses a voltage demand signal indicative of desired ac voltage of an AC/DC power converter to control semiconductor power switching devices to achieve the desired level of ac voltage. The voltage demand signal is derived from comparing a voltage feedback signal and a second voltage demand signal preset to provide the desired ac voltage for the auxiliary systems. A second controller uses a current demand signal indicative of the desired dc link current to control the semiconductor power switching devices of a DC/DC power converter to achieve the desired level of dc link current. The current demand signal is derived from comparing a dc link voltage demand signal indicative of a desired dc link voltage and a dc link voltage feedback signal.
摘要翻译： 直流能量存储器包括可在不同模式下操作的辅助系统，包括自支撑，岛模式和正常模式。 在自支持模式中，第一控制器使用表示AC / DC功率转换器的期望交流电压的电压需求信号来控制半导体功率开关器件以实现期望的交流电压水平。 电压需求信号是通过比较电压反馈信号和预设的第二电压需求信号而得出的，以为辅助系统提供所需的交流电压。 第二控制器使用指示期望的直流链路电流的电流请求信号来控制DC / DC功率转换器的半导体功率开关器件，以实现期望的直流链路电流水平。 通过比较表示期望的直流链路电压的直流链路电压需求信号和直流链路电压反馈信号，导出当前需求信号。
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公开(公告)号：US07339337B2
公开(公告)日：2008-03-04
申请号：US11087176
申请日：2005-03-23
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
IPC分类号： H02P7/00
CPC分类号： B63H21/17 , B63B35/08 , B63B2211/06 , B63H23/24
摘要： A propeller is driven by an electric motor through a mechanical drive train. The output torque of the motor to the drive train is controlled by a controller with respect to a normal torque reference signal and an emergency torque reference signal. When a measured deceleration of the motor exceeds a threshold deceleration value, the normal torque reference signal is modified or replaced by the emergency torque reference signal and the controller signals the motor to reduce or reverse the torque applied to the mechanical drive train by the motor. In this way, the integrity of the propeller and drive train can be protected if the propeller strikes an underwater obstruction.
摘要翻译： 螺旋桨由电动机通过机械传动系驱动。 电动机对传动系的输出转矩由控制器相对于正常转矩参考信号和紧急转矩参考信号控制。 当电机的测量减速度超过阈值减速度值时，正常转矩参考信号被修改或替换为紧急转矩参考信号，控制器向电机发出信号，以减小或反转电机施加到机械传动系的转矩。 以这种方式，如果螺旋桨撞击水下障碍物，则可以保护螺旋桨和传动系统的完整性。
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公开(公告)号：US09941772B2
公开(公告)日：2018-04-10
申请号：US13878865
申请日：2010-10-14
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
摘要： The present invention provides a marine propulsion system that is suitable for any civilian and military marine vessels and which offers operational flexibility. The marine propulsion system includes a pair of ac busbars, each in parallel connection with a power converter. The respective power converters each connected in parallel to a propulsion motor.
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公开(公告)号：US08861239B2
公开(公告)日：2014-10-14
申请号：US13346770
申请日：2012-01-10
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
摘要： A static energy supply unit has an energy store connected to an ac supply network by a power converter. A unit controller for the static energy supply unit includes an amplitude controller, a phase controller and a frequency controller. These measure and record characteristics of the supply network and provide output signals indicative of the voltage characteristics for an operating condition of the supply network. A signal generator for generating a simulated output voltage signal for each phase of the supply network is provided. A comparator is used to compare the simulated output voltage signal for each phase and a measured voltage for a corresponding phase of the supply network. The controller controls the operation of the power converter to vary the amount of power that is supplied to the supply network from the energy store based on the comparison of the simulated output voltage signal(s) and the measured voltage(s).
摘要翻译： 静态能量供应单元具有通过功率转换器连接到交流供电网络的能量存储器。 用于静态能量供应单元的单元控制器包括幅度控制器，相位控制器和频率控制器。 这些测量和记录供应网络的特性，并提供指示供电网络运行状态的电压特性的输出信号。 提供了一种用于为供电网络的各相产生模拟输出电压信号的信号发生器。 比较器用于比较每个相的模拟输出电压信号和供电网络的相应相位的测量电压。 控制器控制功率转换器的操作，以根据模拟输出电压信号和测量电压的比较来改变从能量存储器供应给供电网络的功率量。
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公开(公告)号：US09564847B2
公开(公告)日：2017-02-07
申请号：US13634929
申请日：2011-03-15
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
摘要： An ac synchronous electrical machine includes a stator and a multi-phase stator winding that defines a plurality of stator poles. The stator winding has two or more coil groups, each coil group including a plurality of coils for each phase that are received in winding slots in the stator. The stator winding is connected to a power source/sink. The coil groups are connected in series and each coil group is connected to a power source/sink by a respective switch (26a, 26b . . . ). This allows one or more of the coil groups to be selectively supplied with power from the associated power source/sink or selectively supply power to the associated power source/sink. The switches are operated by a controller. The coils in each coil group are arranged substantially symmetrically around the circumference of the stator to define selected poles of the electrical machine and to produce a constant and balanced rotating torque when any particular coil group or combination of coil groups is active.
摘要翻译： 交流同步电机包括定子和限定多个定子极的多相定子绕组。 定子绕组具有两个或更多个线圈组，每个线圈组包括接收在定子中的绕组槽中的每相的多个线圈。 定子绕组连接到电源/水槽。 线圈组串联连接，每个线圈组通过相应的开关（26a，26b ...）连接到电源/吸收器。 这允许一个或多个线圈组从相关联的电源/接收器选择性地供电，或者选择性地向相关联的电源/接收器供电。 开关由控制器操作。 每个线圈组中的线圈围绕定子的圆周基本上对称地布置，以限定电机的选定极点，并且当任何特定的线圈组或线圈组的组合是活动的时产生恒定和平衡的旋转转矩。
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公开(公告)号：US20130169045A1
公开(公告)日：2013-07-04
申请号：US13703472
申请日：2011-06-08
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
IPC分类号： H02J9/04
CPC分类号： H02J9/04 , H02J9/062 , H02M7/66 , Y10T307/344
摘要： A dc energy store system includes a dc energy store, an AC/DC power converter having ac terminals connected to an ac power supply and dc terminals connected to the dc energy store, and at least one auxiliary unit associated with the dc enemy store. The dc energy store system is adapted to be operated in a number of different operating modes including: (i) a first mode to supply power from the ac power supply to the dc energy store; (ii) a second mode to supply power from the dc energy store to the ac power supply; (iii) a third mode to supply power from the ac power supply to the auxiliary unit(s); and (iv) a fault mode where there is a fault in the ac power supply, and power is supplied from the dc energy store to the auxiliary unit(s).
摘要翻译： 直流能量存储系统包括直流能量存储器，具有连接到交流电源的交流端子和连接到直流能量存储器的直流端子的交流/直流电力转换器以及与直流敌人存储器相关联的至少一个辅助单元。 直流能量存储系统适于以多种不同的操作模式操作，包括：（i）从交流电源向直流能量存储器供电的第一模式; （ii）从直流能量存储器供电到交流电源的第二模式; （iii）从交流电源向辅助单元供电的第三模式; 和（iv）在交流电源中存在故障的故障模式，并且从直流能量存储器供电到辅助单元。
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公开(公告)号：US20130039106A1
公开(公告)日：2013-02-14
申请号：US13346770
申请日：2012-01-10
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
IPC分类号： H02M7/537
摘要： A static energy supply unit has an energy store 4-connected to an ac supply network by a power converter. A unit controller for the static energy supply unit includes an amplitude controller, a phase controller and a frequency controller. These measure and record characteristics of the supply network and provide output signals indicative of the voltage characteristics for an operating condition of the supply network. A signal generator for generating a simulated output voltage signal for each phase of the ac supply network is provided. A comparator is used to compare the simulated output voltage signal for each phase and a measured voltage for a corresponding phase of the supply network. The controller controls the operation of the power converter to vary the amount of power that is supplied to the supply network from the energy store 4-based on the comparison of the simulated output voltage signal(s) and the measured ac voltage(s).
摘要翻译： 静态能量供应单元具有通过功率转换器4连接到交流供电网络的能量存储器。 用于静态能量供应单元的单元控制器包括幅度控制器，相位控制器和频率控制器。 这些测量和记录供应网络的特性，并提供指示供电网络运行状态的电压特性的输出信号。 提供一种用于为交流供电网络的每个相产生模拟输出电压信号的信号发生器。 比较器用于比较每个相的模拟输出电压信号和供电网络的相应相位的测量电压。 控制器控制功率转换器的操作，以根据模拟输出电压信号和测量的交流电压（s）的比较来改变从能量存储器4提供给供电网络的功率量。
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公开(公告)号：US07868573B2
公开(公告)日：2011-01-11
申请号：US11652221
申请日：2007-01-11
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
CPC分类号： H02P25/22 , H02K3/28 , H02P25/18 , H02P27/08 , H02P2207/073
摘要： A drive circuit includes an ac network and first and second network rectifier/inverters (which can be active or passive) that are connected to the ac network in parallel. A first PWM rectifier/inverter is connected to the first network rectifier/inverter through a first dc link. A second PWM rectifier/inverter is connected to the second network rectifier/inverter through a second dc link. A first two-layer stator winding having a plurality of individual stator coils is connected to the first PWM rectifier/inverter and a second two-layer stator winding having a plurality of individual stator coils is connected to the second PWM rectifier/inverter. The stator coils of the first stator winding and the stator coils of the second stator winding are interconnected such that, in use, the vector sum of voltages across the stator coils in the first stator winding is substantially equal to the vector sum of voltages across the stator coils in the second stator winding. This has the advantageous effect of reducing the PWM frequency current harmonics flowing in the first and second stator windings.
摘要翻译： 驱动电路包括并联连接到交流网络的交流网络和第一和第二网络整流器/逆变器（其可以是主动或被动的）。 第一个PWM整流器/逆变器通过第一个直流链路连接到第一个网络整流器/逆变器。 第二个PWM整流器/逆变器通过第二个直流链路连接到第二个网络整流器/逆变器。 具有多个单独的定子线圈的第一双层定子绕组连接到第一PWM整流器/逆变器，并且具有多个单个定子线圈的第二双层定子绕组连接到第二PWM整流器/逆变器。 第一定子绕组的定子线圈和第二定子绕组的定子线圈互连，使得在使用中，第一定子绕组中的定子线圈两端的电压的矢量和基本上等于横跨 第二定子绕组中的定子线圈。 这具有减少在第一和第二定子绕组中流动的PWM频率电流谐波的有利效果。
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公开(公告)号：US20050073269A1
公开(公告)日：2005-04-07
申请号：US10955998
申请日：2004-09-30
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
CPC分类号： H02J3/28 , H02J9/062 , H02P25/06 , H02P25/062 , H02P25/064
摘要： A system comprises an energy store subsystem connected to an electronic converter subsystem, and a linear motor subsystem connectable to the electronic converter subsystem through a selector switch, the electronic converter subsystem also being connectable to an energy source through the selector switch. The electronic converter subsystem comprises a reversible power converter. In operation, the selector switch first connects the energy source to the electronic converter subsystem for charging at least one energy store in the energy store subsystem and then connects the electronic converter subsystem to the linear motor subsystem to supply power from the energy store subsystem to the linear motor subsystem. Regenerative power from linear motor braking can also be used to recharge the energy store(s) through the electronic converter subsystem. Several systems can be coupled together in parallel to a common energy source.
摘要翻译： 系统包括连接到电子转换器子系统的能量存储子系统和通过选择器开关连接到电子转换器子系统的线性电动机子系统，电子转换器子系统也可通过选择器开关连接到能量源。 电子转换器子系统包括可逆功率转换器。 在操作中，选择器开关首先将能量源连接到电子转换器子系统，用于对能量存储子系统中的至少一个能量存储器进行充电，然后将电子转换器子系统连接到线性电动机子系统，以从能量存储子系统向 线性电机子系统。 来自线性电机制动的再生电力也可用于通过电子转换器子系统对能量存储器进行再充电。 几个系统可以并联耦合到共同的能量源。
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公开(公告)号：US09614400B2
公开(公告)日：2017-04-04
申请号：US13703472
申请日：2011-06-08
申请人： Eric Anthony Lewis
发明人： Eric Anthony Lewis
CPC分类号： H02J9/04 , H02J9/062 , H02M7/66 , Y10T307/344
摘要： A dc energy store system includes a dc energy store, an AC/DC power converter having ac terminals connected to an ac power supply and dc terminals connected to the dc energy store, and at least one auxiliary unit associated with the dc energy store. The dc energy store system is adapted to be operated in a number of different operating modes including: (i) a first mode to supply power from the ac power supply to the dc energy store; (ii) a second mode to supply power from the dc energy store to the ac power supply; (iii) a third mode to supply power from the ac power supply to the auxiliary unit(s); and (iv) a fault mode where there is a fault in the ac power supply, and power is supplied from the dc energy store to the auxiliary unit(s).
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