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1.发明授权Controlling magnetizing current in a transformer by comparing the difference between first and second positive peak values of the magnetizing current with a threshold 有权通过将磁化电流的第一和第二正峰值与阈值之间的差进行比较来控制变压器中的磁化电流公开(公告)号：US06577111B1
公开(公告)日：2003-06-10
申请号：US09948248
申请日：2001-09-06
IPC分类号： H01F4014
CPC分类号： H02M3/33507
摘要： Differential measurement of a transformer magnetizing current and a delta-modulation technique is used to provide compensation for dc saturation of the transformer core, with faster response times, low losses, and with immunity to dc drift in the measuring electronics. During the half-cycle in which the output voltage transitions from its positive maximum to its negative maximum, the positive peak value of the magnetizing current is determined, and during the half-cycle in which the output voltage transitions from its negative maximum to its positive maximum, the negative peak value of the magnetizing current is determined. The positive peak magnetizing current value is compared to the similar value from the previous cycle, and the onset of core saturation in the positive direction is then determined. The negative peak magnetizing current value is compared to the similar value from the previous cycle, and the onset of core saturation in the negative direction is then determined. Based on the results of the core saturation determinations, a control action is determined in accordance with a truth table.
摘要翻译： 变压器磁化电流和增量调制技术的差分测量用于为变压器铁芯的直流饱和度提供补偿，具有更快的响应时间，低损耗，并具有对测量电子设备中直流漂移的抗扰性。 在输出电压从正的最大值转换到负的最大值的半周期内，确定励磁电流的正峰值，在输出电压从其负最大值转变为正的半周期期间 确定磁化电流的负峰值。 将正峰值磁化电流值与前一周期的相似值进行比较，然后确定正方向的磁芯饱和开始。 将负峰值磁化电流值与前一周期的相似值进行比较，然后确定负方向的磁芯饱和开始。 基于核心饱和度确定的结果，根据真值表确定控制动作。
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公开(公告)号：US06535403B1
公开(公告)日：2003-03-18
申请号：US09932773
申请日：2001-08-17
IPC分类号： H02M112
CPC分类号： H02M1/12 , H02M7/53871
摘要： Notching in a switch-mode converter is compensated for to restore a sinusoidal output voltage waveform to the output of the converter, regardless of the load current level, power level, or power factor (both distortion and displacement power factor). Waveform smoothing for a waveform in a switch-mode converter having a DC bus voltage and an output filter inductance comprises determining a ripple current in the converter; determining a time-to-zero; determining a turn-on time; determining the lesser of the time-to-zero and the turn-on time; determining a duty cycle modification based on the lesser of the time-to-zero and the turn-on time; and applying the duty cycle modification to the waveform.
摘要翻译： 不论负载电流水平，功率水平或功率因数（失真和位移功率因数）如何，补偿了开关模式转换器中的开关，以将正弦输出电压波形恢复到转换器的输出。 具有DC总线电压和输出滤波电感的开关模式转换器中的波形的波形平滑包括确定转换器中的纹波电流; 确定时间到零; 确定开启时间; 确定时间到零和开启时间的较小者; 基于时间到零和开启时间中的较小者来确定占空比修改; 并对波形进行占空比修正。
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公开(公告)号：US06134124A
公开(公告)日：2000-10-17
申请号：US310291
申请日：1999-05-12
申请人： Aaron M. Jungreis , Edward Petrie , Harold M. Stillman , David Slump , John Finney , Joseph Oravsky
发明人： Aaron M. Jungreis , Edward Petrie , Harold M. Stillman , David Slump , John Finney , Joseph Oravsky
CPC分类号： H02J3/381 , H02J3/32 , H02J3/382 , H02J7/34 , H02J9/066 , H02J3/1842 , H02J3/30 , H02J3/383 , H02J3/386 , H02J3/387 , Y02B10/72 , Y02B90/14 , Y02E10/563 , Y02E10/566 , Y02E10/763 , Y02E40/22 , Y02E70/30
摘要： An electronic interface couples a combination of generation and storage devices with a power grid and/or a load. The interface comprises a DC bus; a DC storage device coupled to the DC bus; a first DC-to-AC inverter (N1) having a DC port operatively coupled to the DC bus, and an AC port; a second DC-to-AC inverter (N2) having a DC port operatively coupled to the DC bus, and an AC port; a switch (S4) for electrically coupling the AC port of the second DC-to-AC inverter to a first generator or an AC storage device; a first rectifier (D1) for coupling an AC output of the first generator to the DC bus; and a second rectifier (D2) for coupling an AC output of the AC storage device to the DC bus. The electronic interface provides an efficient mechanism for integrating a variety of storage and generation devices to produce high quality power and reliability to a load as well as to facilitate interfacing of the storage and generation devices to the power grid for purposes of energy control, load leveling, and peak shaving.
摘要翻译： 电子接口将发电和存储设备的组合与电网和/或负载耦合。 接口包括一个直流总线; 耦合到所述DC总线的DC存储设备; 具有可操作地耦合到所述DC总线的DC端口的第一DC-AC逆变器（N1）和AC端口; 具有可操作地耦合到DC总线的DC端口的第二DC-AC逆变器（N2）和AC端口; 用于将第二DC-AC逆变器的AC端口电耦合到第一发电机或AC存储装置的开关（S4） 用于将所述第一发生器的AC输出耦合到所述DC总线的第一整流器（D1） 以及用于将AC存储设备的AC输出耦合到DC总线的第二整流器（D2）。 电子接口提供了一种有效的机制，用于集成各种存储和发电设备，以为负载产生高质量的功率和可靠性，并且为了能量控制，负载均衡的目的，便于将存储和发电设备连接到电网 ，和高峰剃须。
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公开(公告)号：US5448141A
公开(公告)日：1995-09-05
申请号：US210554
申请日：1994-03-18
摘要： The present invention relates to a method and apparatus for controlling the speed of an electronically commutated motor. Such motors typically include a rotor, a stator coil, and an electronic commutator for controlling electrical power flow from an electrical power source of predetermined frequency to the stator coil. The invention includes the steps of generating a switch control signal responsive to a position of the rotor; generating a phase gating signal from the electrical power source of predetermined frequency, the phase gating signal having twice the predetermined frequency and having transitions in timed relation to the zero crossings of the electrical power source; varying the timed relation of the phase gating signal in accordance with an operational parameter desired for the electronically commutated motor; generating a phase controlled switch signal which is responsive to the phase gating signal and the switch control signals; and applying the phase controlled switch signal to the electronic commutator to control the electronic commutator, thereby controlling the speed of the electronically commutated motor.
摘要翻译： 本发明涉及一种用于控制电子换向马达速度的方法和装置。 这种电动机通常包括用于控制从预定频率的电源到定子线圈的电力流的转子，定子线圈和电子换向器。 本发明包括响应于转子位置产生开关控制信号的步骤; 从预定频率的电源产生相位门控信号，相位选通信号具有两倍于预定频率并且具有与电源的过零点的定时关系的转变; 根据电子换向马达所需的运行参数改变相位选通信号的定时关系; 产生响应相位门控信号和开关控制信号的相位控制开关信号; 并将相控开关信号施加到电子换向器以控制电子换向器，从而控制电子换向马达的速度。
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公开(公告)号：US06639512B1
公开(公告)日：2003-10-28
申请号：US09115772
申请日：1998-07-15
申请人： Kyu-Woong Lee , Aaron M. Jungreis
发明人： Kyu-Woong Lee , Aaron M. Jungreis
IPC分类号： G08B108
CPC分类号： G08B21/02
摘要： A system used to protect the occupants of a stationary motor vehicle, particularly unattended children and pets, from dangerous conditions occurring within the vehicle. The system comprises a sensor which senses dangerous environmental conditions such as high temperatures within the vehicle. In the preferred embodiment, the sensor is used with a transmitter to continuously transmit sound detected within the vehicle passenger compartment as well as transmitting information about any dangerous conditions which occur to a remotely located person. In a second embodiment, dangerous conditions trigger an alarm attached to the vehicle. The alarm amplifies the sound detected within the vehicle, such as a crying child, or a barking dog, and also produces a standard alarm sound alternated with an amplified voice declaring the dangerous condition. In a third embodiment, a sensor module attached to a wireless telephone informs a remotely located person of the dangerous condition through another wireless telephone or a pager.
摘要翻译： 用于保护固定的机动车辆的乘客，特别是无人值守的儿童和宠物的系统不受车内危险情况的影响。 该系统包括感测危险环境条件（例如车辆内的高温）的传感器。 在优选实施例中，传感器与发射机一起使用以连续地发送在车辆乘客舱内检测到的声音，以及传送关于远程位置的人发生的任何危险状况的信息。 在第二实施例中，危险条件触发附着在车辆上的警报。 警报放大车内检测到的声音，例如哭泣的孩子或吠叫犬，并产生与声音危险状况的放大声音交替的标准警报声。 在第三实施例中，附接到无线电话的传感器模块通过另一无线电话或寻呼机向远程位置的人通知危险状况。
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公开(公告)号：US06169390A
公开(公告)日：2001-01-02
申请号：US09310652
申请日：1999-05-12
申请人： Aaron M. Jungreis
发明人： Aaron M. Jungreis
IPC分类号： H02J908
CPC分类号： H02J9/08 , Y10T307/615
摘要： A power supply system for providing long and short term backup power to a load comprises a microturbine system, a flywheel system, and a power electronics module. The microturbine system includes a microturbine attached to a first, high speed motor-generator that includes a first stator, and the flywheel system includes a flywheel attached to a second motor-generator. The microturbine system is started by a direct connection of a high frequency AC voltage output of the flywheel system (in the range of from about 500 Hz to about 2 kHz) to the stator of the first motor-generator. The direct connection of the high frequency AC voltage to the stator involves no intervening electronics.
摘要翻译： 用于向负载提供长期和短期备用电力的电源系统包括微型涡轮机系统，飞轮系统和电力电子模块。 微型涡轮机系统包括附接到包括第一定子的第一高速电动发电机的微型涡轮机，飞轮系统包括附接到第二电动发电机的飞轮。 微型涡轮机系统通过将飞轮系统的高频AC电压输出（在约500Hz至约2kHz范围内）直接连接到第一电动发电机的定子来启动。 高频交流电压直接连接到定子不需要插入电子元件。
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公开(公告)号：US06930897B2
公开(公告)日：2005-08-16
申请号：US09919281
申请日：2001-07-31
CPC分类号： H02J7/34 , H02J2001/004 , H02M3/33569 , Y02B40/90
摘要： The invention is directed to a method, system and device for converting direct current (DC) electrical voltage from a fuel cell to an alternating current (AC) voltage. The inventive method regulates power drawn from the fuel cell and from a battery to maintain a substantially constant DC voltage across a DC bus, and inverts the DC voltage from the DC bus to the AC voltage. The method may further electrically isolate the fuel cell from the load. Also, the inventive method may prevent current from flowing to the fuel cell. The inventive method may also provide a charging current to the battery.
摘要翻译： 本发明涉及用于将来自燃料电池的直流（DC）电压转换成交流（AC）电压的方法，系统和装置。 本发明的方法调节从燃料电池和电池抽取的功率，以在直流母线上保持基本恒定的直流电压，并将直流电压从直流母线转换为交流电压。 该方法可以进一步将燃料电池与负载电隔离。 而且，本发明的方法可以防止电流流向燃料电池。 本发明的方法还可以向电池提供充电电流。
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公开(公告)号：US06881509B2
公开(公告)日：2005-04-19
申请号：US10024744
申请日：2001-12-19
申请人： Aaron M. Jungreis
发明人： Aaron M. Jungreis
CPC分类号： H01M8/0494 , H01M8/04007 , H01M8/04082 , H01M8/04701 , H01M8/04753 , H01M8/04798 , H01M16/003 , H01M2250/402 , H02J7/34 , Y02B90/12 , Y10T307/615 , Y10T307/625
摘要： A fuel cell is placed in parallel with a battery via a mechanical switch. The voltage is held nearly constant by the battery and the power flow is controlled by adjusting the fuel cell operating parameters (such as temperature or air flow) and by opening and closing the mechanical switch. The result is a system that operates at nearly constant voltage without the need for an expensive power conditioning system. The output of the system can then be processed via a traditional power conditioning system such as an inverter or dc-to-dc converter without the need for a wide range of input operating voltages. This reduces the cost and size of the fuel cell power conditioning system.
摘要翻译： 燃料电池通过机械开关与电池平行放置。 电池的电压几乎保持恒定，通过调节燃料电池的运行参数（如温度或气流）以及打开和关闭机械开关来控制电力流量。 结果是在几乎恒定的电压下运行的系统，而不需要昂贵的功率调节系统。 然后可以通过传统的功率调节系统（例如逆变器或DC-DC转换器）来处理系统的输出，而不需要宽范围的输入工作电压。 这降低了燃料电池功率调节系统的成本和尺寸。
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公开(公告)号：US06541940B1
公开(公告)日：2003-04-01
申请号：US10025049
申请日：2001-12-19
申请人： Aaron M. Jungreis
发明人： Aaron M. Jungreis
IPC分类号： H01M1046
CPC分类号： H01M10/4207 , H01M16/00 , H01M16/006 , H02J7/34
摘要： Batteries are often used for load-following, particularly in combination with generation sources that cannot respond to fast load changes. Batteries that display “memory” (i.e., their ability to operate correctly over their entire depth of discharge depends on their previous level of charge or discharge) cannot adequately follow loads. This invention allows the use of batteries that display “memory” in load-following applications.
摘要翻译： 电池通常用于负载跟随，特别是与无法响应快速负载变化的发电源组合使用。 显示“记忆”的电池（即，其在整个放电深度上正确操作的能力取决于其先前的充电或放电水平）不能充分跟踪负载。 本发明允许使用在负载跟随应用中显示“存储器”的电池。
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10.发明授权High efficiency power conditioner employing low voltage DC bus and buck and boost converters 有权采用低压直流母线，降压和升压转换器的高效功率调节器公开(公告)号：US06369461B1
公开(公告)日：2002-04-09
申请号：US09653663
申请日：2000-09-01
申请人： Aaron M. Jungreis , Vinod Bapat
发明人： Aaron M. Jungreis , Vinod Bapat
IPC分类号： H02J112
CPC分类号： H02J1/10 , H01M16/003 , H02J7/34 , Y10T307/344 , Y10T307/516 , Y10T307/625
摘要： A power conditioner interfaces a load to a fuel cell 10 that produces a low voltage that varies with the load. A dc-to-ac inverter 16 operates with a low voltage input provided by a dc bus 14. When a positive step load change occurs, a low voltage battery 22 provides power equal to the step change until the fuel cell 10 is able to provide enough power to support the entire load. The power from the battery 22 is supplied to the varying dc bus 14 through a boost converter 12. When very large positive load step changes occur, the battery can feed power to the dc bus through diode D1, rather than through the boost converter. Diode D1 does not need to be used, but its use allows the boost converter to be sized for common load changes rather than for the maximum possible load change (such as might be seen during a faulted output). A buck converter converts the variable voltage on the dc bus 14 to the appropriate float charging voltage of the battery. The buck converter also supplies power for auxiliary equipment when available from the fuel cell. If the fuel cell is unable to provide the auxiliary power (such as during startup or load transients), then the auxiliary power can come directly from the battery.
摘要翻译： 功率调节器将负载连接到产生随负载变化的低电压的燃料电池10。 直流到交流逆变器16利用由直流总线14提供的低电压输入进行工作。当发生正阶跃负载变化时，低电压电池22提供等于阶梯变化的功率，直到燃料电池10能够提供 足够的电力来支持整个负载。 来自电池22的电力通过升压转换器12提供给变化的直流总线14.当发生非常大的正负载阶跃变化时，电池可以通过二极管D1而不是通过升压转换器将功率馈送到直流母线。 二极管D1不需要使用，但其使用允许升压转换器的大小适合于常见的负载变化，而不是最大可能的负载变化（例如在故障输出期间可能看到）。 降压转换器将直流总线14上的可变电压转换为电池的适当的浮充电压。 降压转换器还可以从燃料电池供应辅助设备的电力。 如果燃料电池不能提供辅助电源（例如启动或负载瞬变），则辅助电源可以直接从电池中取出。
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