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公开(公告)号：US20200021103A1
公开(公告)日：2020-01-16
申请号：US16503786
申请日：2019-07-05
申请人： Kohler Co.
发明人： Isaac S. Frampton , Adam Larson
摘要： A circuit for minimizing energy provided to a ground fault includes a source, a multiple switches, an output filter, and a controller. The switches include a first side pair of switches and a second side pair of switches configured to provide an output signal based on the source. The output filter includes one or more energy storage elements coupled to the first side pair of switches or the second side pair of switches. The controller is configured to receive a ground fault signal that indicates a fault has occurred and configured to generate a switch signal for the switches for a minimum energy state of the output filter and in response to the ground fault signal.
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公开(公告)号：US20150357940A1
公开(公告)日：2015-12-10
申请号：US14725391
申请日：2015-05-29
申请人： EMPOWER MICRO INC.
发明人： Milan Ilic , Mika Nuotio , Jon Bonanno
IPC分类号： H02M7/72
摘要： A multiple dc sources bi-directional energy converter includes a plurality of direct current (DC) power sources; one alternating current (AC) power source; at least one stacked alternating current (AC) phase, each stacked alternating current (AC) phase having at least two or more full bridge converters, each respectively coupled to one of the direct current power sources, each full bridge converter having an inductor electrically coupled thereto; and a local controller coupled to each full bridge converter controlling the firing sequence of the switching devices in said full bridge converter to generate an approximately nearly sinusoidal voltage waveform when operated as a voltage source inverter in one direction or generate an approximately nearly constant direct current (DC) output when operated as a full-wave active rectifier in the opposite direction.
摘要翻译： 多直流源双向能量转换器包括多个直流（DC）电源; 一个交流（AC）电源; 至少一个堆叠的交流（AC）相，每个堆叠的交流（AC）相具有至少两个或更多个全桥转换器，每个分别耦合到一个直流电源，每个全桥转换器具有电感耦合 到; 以及本地控制器，耦合到每个全桥转换器，其控制所述全桥转换器中的开关装置的点火顺序，以在一个方向上作为电压源逆变器工作时产生大致接近正弦的电压波形，或者产生大致接近恒定的直流电流 DC）输出，作为相反方向的全波有源整流器工作。
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3.发明授权Inverter based storage in dynamic distribution systems including distributed energy resources 有权基于变频器的动态配电系统存储，包括分布式能源资源公开(公告)号：US07787272B2
公开(公告)日：2010-08-31
申请号：US11681024
申请日：2007-03-01
申请人： Robert H. Lasseter , Paolo Piagi
发明人： Robert H. Lasseter , Paolo Piagi
CPC分类号： H02J3/32 , H02J3/30 , H02J3/382 , H02J3/383 , H02J3/386 , H02J3/387 , H02J2001/004 , Y02E10/563 , Y02E10/566 , Y02E10/763 , Y02E60/16 , Y02E70/30
摘要： A microsource is provided, which includes an inverter, an energy storage device, and a controller. The controller calculates a maximum frequency change for the inverter based on a first comparison between a first power set point and a measured power from the inverter. The first power set point is defined based on a charge level of the energy storage device. A minimum frequency change for the inverter is calculated based on a second comparison between a second power set point and the measured power from the inverter. An operating frequency for the inverter is calculated based on a third comparison between a power set point and a measured power flow. A requested frequency for the inverter is calculated by combining the maximum frequency change, the minimum frequency change, and the operating frequency. The requested frequency is integrated to determine a phase angle of a voltage of the inverter to control a frequency of an output power of the inverter.
摘要翻译： 提供了一种微源，其包括逆变器，能量存储装置和控制器。 控制器基于来自逆变器的第一功率设定点和测量功率之间的第一比较来计算逆变器的最大频率变化。 基于能量存储装置的充电水平来定义第一功率设定点。 基于第二功率设定点和来自逆变器的测量功率之间的第二比较来计算逆变器的最小频率变化。 基于功率设定点和测量功率流之间的第三比较来计算逆变器的工作频率。 通过组合最大频率变化，最小频率变化和工作频率来计算逆变器的请求频率。 所请求的频率被积分以确定逆变器的电压的相位角，以控制逆变器的输出功率的频率。
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公开(公告)号：US5886888A
公开(公告)日：1999-03-23
申请号：US638054
申请日：1996-04-26
申请人： Masahiko Akamatsu , Shinzo Tamai , Fuminori Nakamura , Shotaro Murakami , Tomohiko Aritsuka , Takeaki Asaeda
发明人： Masahiko Akamatsu , Shinzo Tamai , Fuminori Nakamura , Shotaro Murakami , Tomohiko Aritsuka , Takeaki Asaeda
CPC分类号： H02J3/36 , H02J3/01 , H02M7/17 , H02M7/19 , H02M7/493 , H02M7/23 , H02M7/25 , H02M7/487 , Y02E40/10 , Y02E40/40 , Y02E60/60
摘要： A voltage source type power converting apparatus having voltage source type power converter units and phase-shifting transformers. The transformers have either a common multiple-phase primary winding or a group of parallel connected multiple-phase primary windings, either of which being connected in parallel or series to a multiple-phase AC system. The transformer further include a group of multiple-phase secondary windings with phase differences with respect to each other and which are connected to voltage source type power converter units. The voltage source type power converter units are operated with the phase differences. Accordingly, the construction of the multiplexing phase-shifting transformer is simple, and fundamental electric variables can be controlled by a simple phase controlling operation. In addition, a higher harmonic defect of the AC system can be reduced, and the DC voltage can be easily raised.
摘要翻译： 一种具有电压型功率转换器单元和移相变压器的电压型电力转换装置。 变压器具有公共多相初级绕组或一组并联的多相初级绕组，其中任一个并联或串联连接到多相AC系统。 该变压器还包括一组相对于彼此具有相位差并连接到电压源型功率转换器单元的多相次级绕组。 电压源式功率转换器单元以相位差运行。 因此，复用移相变压器的构造简单，可以通过简单的相位控制操作来控制基本的电变量。 此外，可以降低AC系统的高次谐波缺陷，并且可以容易地提高DC电压。
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公开(公告)号：US4330743A
公开(公告)日：1982-05-18
申请号：US169699
申请日：1980-07-17
申请人： Timothy F. Glennon
发明人： Timothy F. Glennon
摘要： This invention relates to electrical aircraft engine start and generating system for use in an aircraft having an engine driven torque converter coupled to an alternator which provides AC power for conversion to DC and AC power. The system includes a reversible AC to DC converter controllably electrically coupled to the alternator and a controller unit to provide DC power in a generating mode. The reversible AC to DC converter is capable of receiving externally supplied DC power to be converted to AC power to drive the alternator as a motor in a start mode. A DC to AC converter is controllably electrically coupled to the controller unit and the DC power output during the generating mode. The reversible DC to AC converter in the start mode is mutually controllably electrically coupled to the externally supplied DC power. The controller unit and the alternator cooperate to provide a controlled AC power output to be delivered to the alternator to bring the alternator operating as a motor up to operating speed, whereupon the reversible DC to AC converter responds to the external DC power and is electrically coupled to the alternator to drive the alternator as a motor to deliver rotary power through the torque converter to start the aircraft engine.
摘要翻译： 本发明涉及一种用于飞机的电动飞机发动机起动和发电系统，该系统具有耦合到交流发电机的发动机驱动的变矩器，其提供用于转换为直流和交流电力的AC电力。 该系统包括可控制地电耦合到交流发电机的可逆AC到DC转换器和控制器单元，以在发电模式下提供直流电力。 可逆AC到DC转换器能够接收外部提供的直流电力，以转换为交流电力，以起动模式驱动交流发电机作为电动机。 DC到AC转换器在生成模式期间可控制地电耦合到控制器单元和DC功率输出。 在可启动模式下的可逆DC至AC转换器可互相控制地电耦合到外部提供的直流电源。 控制器单元和交流发电机协作以提供受控的交流电力输出以传送到交流发电机，以使作为电动机的交流发电机工作达到运行速度，于是可逆DC至AC转换器响应于外部直流电力并且电耦合 交流发电机驱动交流发电机作为电动机，通过变矩器提供旋转动力以启动飞机发动机。
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公开(公告)号：US3487289A
公开(公告)日：1969-12-30
申请号：US3487289D
申请日：1968-04-16
申请人： GEN ELECTRIC
发明人： MCMURRAY WILLIAM
CPC分类号： H02M7/523 , H02M5/225 , H02M7/4807
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公开(公告)号：US11600988B2
公开(公告)日：2023-03-07
申请号：US16925251
申请日：2020-07-09
申请人： Kohler Co.
发明人： Isaac S. Frampton , Adam Larson
摘要： A circuit for minimizing energy provided to a ground fault includes a source, a multiple switches, an output filter, and a controller. The switches include a first side pair of switches and a second side pair of switches configured to provide an output signal based on the source. The output filter includes one or more energy storage elements coupled to the first side pair of switches or the second side pair of switches. The controller is configured to receive a ground fault signal that indicates a fault has occurred and configured to generate a switch signal for the switches for a minimum energy state of the output filter and in response to the ground fault signal.
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公开(公告)号：US10027217B2
公开(公告)日：2018-07-17
申请号：US15103792
申请日：2014-12-12
发明人： Sajjad Fekriasl , Michael Marc Claude Merlin , Timothy Charles Green , Kevin Dyke , Francisco Jose Moreno Muñoz , Omar Fadhel Jasim , Masoud Bazargan
摘要： In the field of high voltage direct current power transmission networks, a method of controlling a converter that includes at least one converter limb which corresponds to a respective phase of the converter, is described. The method includes obtaining a respective AC current demand phase waveform for each converter limb which the corresponding converter limb is required to track, and a DC current demand which each converter limb is also required to track. The method further determining a limb portion current for each limb portion that the limb portion must contribute to track the corresponding required AC current demand phase waveform and the required DC current demand, and providing a limb portion voltage source for each limb portion to achieve the corresponding limb portion current. The method carrying out mathematical optimization to determine one or more optimal limb portion currents and/or provide optimal limb portion voltage sources.
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公开(公告)号：US20140313797A1
公开(公告)日：2014-10-23
申请号：US14357908
申请日：2011-11-15
IPC分类号： H02M7/72
CPC分类号： H02M7/72 , H02M7/49 , H02M2001/325 , H02M2007/4835
摘要： In the field of voltage source converters which provide high voltage direct current (HVDC) power transmission and reactive power compensation there is a need for an improved power electronic module which exhibits high efficiency, provides a safe failure mode, and is tolerant of faults.A power electronic module (30; 70), for use in a chain-link converter of a voltage source converter providing high voltage direct current power transmission and reactive power compensation, comprises a first set (32) of series-connected switching elements connected in parallel with an energy storage device (34). The first set (32) of series-connected switching elements includes a first latching switching element (38) and a first non-latching switching element (40).
摘要翻译： 在提供高压直流（HVDC）电力传输和无功补偿的电压源转换器领域中，需要一种改进的功率电子模块，其具有高效率，提供安全故障模式并且容忍故障。 一种用于提供高压直流电力传输和无功功率补偿的电压源转换器的链式转换器的电力电子模块（30; 70）包括连接在一起的串联开关元件的第一组（32） 与能量存储装置（34）平行。 第一组（32）的串联开关元件包括第一闭锁开关元件（38）和第一非锁定开关元件（40）。
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