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51. 发明授权

US08937796B2 Variable frequency drive and methods for filter capacitor fault detection 有权
标题翻译：变频器和滤波电容故障检测方法
公开(公告)号：US08937796B2
公开(公告)日：2015-01-20
申请号：US13532906
申请日：2012-06-26
申请人： Yuan Xiao , Navid Zargari , Manish Pande , Vijay Khatri
发明人： Yuan Xiao , Navid Zargari , Manish Pande , Vijay Khatri
IPC分类号： H02H3/00 , H02M5/451 , H02M1/32 , H02M5/458 , H02M7/525 , H02M7/539 , H02J3/00 , H02J3/36 , H02M5/40 , H02M7/06
CPC分类号： H02M5/451 , G01R31/028 , G01R31/42 , H02M1/126 , H02M1/32 , H02M5/4505 , H02M5/458 , H02M5/4585 , H02M7/525 , H02M7/539
摘要： Variable frequency motor drives and control techniques are presented in which filter capacitor faults are detected by measuring filter neutral node currents and/or voltages and detecting changes in a frequency component of the measured neutral condition and/or based on input current unbalance.
摘要翻译：提出了变频电动机驱动和控制技术，其中通过测量滤波器中性点节点电流和/或电压并检测测量的中性线状态的频率分量和/或基于输入电流不平衡来检测滤波电容器故障。

52. 发明申请

US20140376286A1 POWER CONVERSION APPARATUS 有权
标题翻译：功率转换装置
公开(公告)号：US20140376286A1
公开(公告)日：2014-12-25
申请号：US14376057
申请日：2012-03-02
申请人： Yasuhiko Hosokawa , Toshifumi Ise , Shinsuke Kadoi
发明人： Yasuhiko Hosokawa , Toshifumi Ise , Shinsuke Kadoi
IPC分类号： H02M1/34 , H02M7/539
CPC分类号： H02M1/34 , H02M7/5387 , H02M7/539 , H02M2001/0058 , H02M2001/346 , Y02B70/1491
摘要： When a snubber capacitor is charged to a level greater than or equal to a predetermined voltage, a protection circuit renders a clamp diode conductive to complete charging of the snubber capacitor.
摘要翻译：当缓冲电容器被充电至大于或等于预定电压的电平时，保护电路使钳位二极管导通以完成缓冲电容器的充电。

53. 发明申请

US20140334202A1 CIRCUIT FOR TRANSFERRING POWER BETWEEN A DIRECT CURRENT LINE AND AN ALTERNATING-CURRENT LINE 审中-公开
标题翻译：用于在直流电流线和交流电流线之间传输功率的电路
公开(公告)号：US20140334202A1
公开(公告)日：2014-11-13
申请号：US14341738
申请日：2014-07-25
申请人： D Kevin Cameron
发明人： D Kevin Cameron
IPC分类号： H02H7/122 , H02J3/00 , H02M7/539
CPC分类号： H02H7/1222 , H02J3/00 , H02J5/00 , H02M7/539 , Y10T307/406
摘要： A system, method, and apparatus is disclosed for interfacing and transferring power unidirectionally or bidirectionally between a direct current (DC) line and a single or multiphase alternating-current (AC) line for only half of any given phase and only a single phase at a time when polarity is matched between the DC and the AC system. A circuit with simplified, robust, and reduced-cost components perform the power conditioning and the synchronization as a system that simulates a half-wave rectifier/inverter.
摘要翻译：公开了一种系统，方法和装置，用于在直流（DC）线路和单相或多相交流（AC）线路之间单向或双向接地和传输功率，仅用于任何给定相位的一半，并且仅在在DC和AC系统之间极性匹配的时间。具有简化，稳健和降低成本的组件的电路执行功率调节和同步，作为模拟半波整流器/逆变器的系统。

54. 发明授权

US08760895B2 Method and apparatus for distributed power generation 有权
公开(公告)号：US08760895B2
公开(公告)日：2014-06-24
申请号：US13068014
申请日：2011-04-29
申请人： Martin Fornage
发明人： Martin Fornage
IPC分类号： H02M7/483 , H02M7/539
摘要： A method and apparatus for generating AC power. In one embodiment, the apparatus comprises a DC/AC inversion stage capable of generating at least one of a single-phase output power, a two-phase output power, or a three-phase output power; and a conversion control module, coupled to the DC/AC inversion stage, for driving the DC/AC inversion stage to selectively generate the single-phase output power, the two-phase output power, or the three-phase output power based on an input power to the DC/AC inversion stage.

55. 发明申请

US20140049999A1 Modulation Of Switching Signals In Power Converters 有权
标题翻译：电源转换器中开关信号的调制
公开(公告)号：US20140049999A1
公开(公告)日：2014-02-20
申请号：US13969992
申请日：2013-08-19
申请人： Control Techniques Limited
发明人： Simon David Hart
IPC分类号： H02M7/539
CPC分类号： H02M7/539 , H02M7/53875 , H02M2007/53876
摘要： There is provided a method and control system for reducing noise in a power converter by controlling a switching device in the power converter according to a modulation scheme. The switching device couples a direct current (DC) source to provide an alternating current (AC) output at a particular switching frequency. The method comprises the step of, in each switching period, switching the switching device between active configurations providing a finite voltage at the output and inactive configurations providing a zero voltage at the output. The ratio between the total period of time in which the switching device is in an active configuration and the total period of time in which the switching device is in an inactive configuration is the same for each switching period and is determined according to the desired voltage at the AC output.
摘要翻译：提供了一种通过根据调制方式控制功率转换器中的开关装置来降低功率转换器中的噪声的方法和控制系统。开关器件耦合直流（DC）源，以在特定的开关频率提供交流（AC）输出。该方法包括以下步骤：在每个开关周期中，在输出端提供有限电压的有源配置和在输出端提供零电压的非活动配置之间切换开关装置。开关器件处于有效配置的总时间段与开关器件处于非激活配置的总时间之间的比率对于每个开关周期是相同的，并且根据期望的电压交流输出。

56. 发明申请

US20140043881A1 POWER CONVERTER WITH PREEMPTIVE PROTECTION 有权
标题翻译：功率转换器具有预防性保护
公开(公告)号：US20140043881A1
公开(公告)日：2014-02-13
申请号：US13758092
申请日：2013-02-04
申请人： Hendrik Walde , Daryl Frost
发明人： Hendrik Walde , Daryl Frost
IPC分类号： H02M7/539
CPC分类号： H02M7/539 , H02M1/32 , H02M7/53871 , Y02B70/1441
摘要： Among many embodiments, a power conversion apparatus and a method for converting power are disclosed. The power conversion apparatus may include switching components configured to create an alternating current; a preemptive detector arranged and configured to provide, in advance of the alternating current reaching a zero-crossing, a control signal responsive to the alternating electrical current approaching the zero-crossing; and a controller configured, at least in part, to change a state of the switching components before the zero crossing, in response to the control signal.
摘要翻译：在许多实施例中，公开了一种功率转换装置和用于转换功率的方法。功率转换装置可以包括被配置为产生交流电的开关部件; 预先检测器，被布置和配置为在交流电到达零交叉之前提供响应于接近过零点的交流电流的控制信号; 以及控制器，其至少部分地被配置为响应于所述控制信号而在过零之前改变所述开关组件的状态。

57. 发明申请

US20130114320A1 DEVICE FOR BALANCING THE VOLTAGE ON THE TERMINALS OF A CAPACITOR OF A SET OF CAPACITORS, AND VOLTAGE CONVERSION SYSTEM INCLUDING SUCH A BALANCING DEVICE 审中-公开
标题翻译：用于平衡一组电容器的电容器的电压的装置和包括这种平衡装置的电压转换系统
公开(公告)号：US20130114320A1
公开(公告)日：2013-05-09
申请号：US13810306
申请日：2011-07-15
申请人： Alfred Permuy
发明人： Alfred Permuy
IPC分类号： H02J7/00 , H02M7/539
CPC分类号： H02J7/00 , H02J7/0016 , H02J7/345 , H02M7/539
摘要： Device for balancing voltage on terminals of at least one capacitor of a set of N−1 capacitors connected in series between a positive terminal and a negative input terminal and connected through intermediate points, comprising at least one balancing module connected between both input terminals; each balancing module including means for determining the amount of excess or lacking charges in the intermediate points, a temporary electric energy storage element including two terminals, first current guiding means to extract electric charges from an intermediate point towards a terminal of the storage element, second current guiding means to inject electric charges from the other terminal of the storage element towards an intermediate point, and a member able to control the first means so as to extract charges from at least one intermediate point and able to control the second means so as to inject the charges to at least one intermediate point.
摘要翻译：用于平衡连接在正极端子和负极输入端子之间并通过中间点连接的一组N-1个电容器的至少一个电容器的端子上的电压的装置，包括连接在两个输入端子之间的至少一个平衡模块; 每个平衡模块包括用于确定中间点的过量或缺少电荷量的装置，包括两个端子的临时电能存储元件，从中间点向存储元件的端子提取电荷的第一电流引导装置，第二从存储元件的另一个端子向中间点注入电荷的电流引导装置，以及能够控制第一装置以便从至少一个中间点提取电荷并且能够控制第二装置的构件，将电荷注入至少一个中间点。

58. 发明授权

US07916509B2 Power supply with reduced switching losses by decreasing the switching frequency 有权
标题翻译：电源通过降低开关频率降低开关损耗
公开(公告)号：US07916509B2
公开(公告)日：2011-03-29
申请号：US12066116
申请日：2006-11-09
申请人： Tsuneo Tsuji , Yoshihiko Miyamoto
发明人： Tsuneo Tsuji , Yoshihiko Miyamoto
IPC分类号： H02M7/539
CPC分类号： H02M7/538
摘要： A power source device includes an input terminal, a first switching element connected to the input terminal, a second switching element connected to the first switching element, a transformer having a primary coil connected to a connecting node between the first and second switching elements, a low-pass filter including a series body of a coil and a capacitor connected to a secondary coil of the transformer, an output terminal connected to a connecting node between the coil and the capacitor, a comparator having a first input terminal connected to the output terminal, and an alternating signal generator connected to a second terminal of the comparator. An output terminal of the comparator is connected to each control terminal of the first switching element and the second switching element via the temporary amplitude generation permissible section.
摘要翻译：电源装置包括输入端子，连接到输入端子的第一开关元件，连接到第一开关元件的第二开关元件，具有连接到第一和第二开关元件之间的连接节点的初级线圈的变压器，低通滤波器，包括线圈串联体和连接到变压器的次级线圈的电容器，连接到线圈和电容器之间的连接节点的输出端子，具有连接到输出端子的第一输入端子的比较器以及连接到比较器的第二端子的交流信号发生器。比较器的输出端子通过临时振幅产生允许部分连接到第一开关元件和第二开关元件的每个控制端子。

59. 发明申请

US20100142237A1 SYSTEM AND METHOD FOR CONTROL OF A GRID CONNECTED POWER GENERATING SYSTEM 有权
标题翻译：用于控制网状连接发电系统的系统和方法
公开(公告)号：US20100142237A1
公开(公告)日：2010-06-10
申请号：US12358327
申请日：2009-01-23
申请人： Xiaoming Yuan , Allen Michael Ritter , Haiqing Weng , Robert William Delmerico
发明人： Xiaoming Yuan , Allen Michael Ritter , Haiqing Weng , Robert William Delmerico
IPC分类号： H02M7/539 , H02P9/02 , H02P9/04
CPC分类号： H02J3/386 , Y02E10/725 , Y02E10/763
摘要： A system for controlling a grid connected power generating system is provided. The system includes a wind turbine, a converter, a first controller and a second controller. The wind turbine supplies electrical power to a power grid and the converter couples the wind turbine to the power grid. The first controller calculates voltage commands to emulate a phasor back electromotive force behind an inductance. The controller further generates converter switching commands from the voltage commands. The voltage commands include a voltage magnitude reference and an internal frequency reference calculated from a power imbalance between an active power reference and the electrical power. The second controller is used to limit a converter current.
摘要翻译：提供一种用于控制并网发电系统的系统。该系统包括风力涡轮机，转换器，第一控制器和第二控制器。风力涡轮机向电网提供电力，并且转换器将风力涡轮机耦合到电网。第一控制器计算电压指令以仿真电感后面的相量反电动势。控制器还从电压指令产生转换器切换命令。电压指令包括从有功功率基准和电功率之间的功率不平衡计算出的电压幅度参考和内部频率参考。第二个控制器用于限制转换器电流。

60. 发明授权

US07630222B2 Inverter apparatus with adaptable voltage-to-frequency control 有权
标题翻译：具有适应电压 - 频率控制的变频器
公开(公告)号：US07630222B2
公开(公告)日：2009-12-08
申请号：US12054524
申请日：2008-03-25
申请人： Ting-Chung Hsieh , Cheng-Yen Lin , Sheng-Chieh Chang , Min-Jon Lee
发明人： Ting-Chung Hsieh , Cheng-Yen Lin , Sheng-Chieh Chang , Min-Jon Lee
IPC分类号： H02M7/539 , H02M7/5387
CPC分类号： H02M7/53873 , H03K7/06
摘要： An inverter apparatus has an adaptable high-resolution voltage-to-frequency (V/f) control. The inverter apparatus receives an analog input signal and includes a first circuit, a second circuit, a third circuit, and a micro-controller unit. The first circuit processes a small-signal portion of the analog input signal with a larger voltage gain. The second and the third circuit both processes large-signal portions of the analog input signal with smaller voltage gains respectively. The three processed analog input signals of the first, the second, and the third circuits are converted into three digital output values respectively. The largest digital output value is selected by the micro-controller unit and supplied to a frequency operation unit for generating a corresponding output frequency.
摘要翻译：逆变器装置具有适应性的高分辨率电压 - 频率（V / f）控制。逆变器装置接收模拟输入信号，并且包括第一电路，第二电路，第三电路和微控制器单元。第一电路以较大的电压增益处理模拟输入信号的小信号部分。第二和第三电路分别以较小的电压增益处理模拟输入信号的大信号部分。第一，第二和第三电路的三个处理的模拟输入信号分别转换成三个数字输出值。最大的数字输出值由微控制器单元选择并提供给频率运算单元以产生相应的输出频率。

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