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1. 发明授权

US09203323B2 Very high efficiency uninterruptible power supply 有权
标题翻译：非常高效率的不间断电源
公开(公告)号：US09203323B2
公开(公告)日：2015-12-01
申请号：US13240164
申请日：2011-09-22
申请人： Richard Travis West
发明人： Richard Travis West
IPC分类号： H02J4/00 , H02M5/297 , H02J9/06 , H02M5/458
CPC分类号： H02M5/297 , H02J9/062 , H02J2009/063 , H02M5/4585 , Y10T307/406 , Y10T307/549 , Y10T307/696
摘要： The invention is an electrical power conversion topology. The preferred embodiment is as a three-phase, on-line Uninterruptible Power Supply (UPS). The desired AC output voltage waveform is formed on each output line or phase of the UPS, using pulse modulation techniques and a smoothing output filter inductor. A semiconductor switching matrix is used to switch the power converter side of each output filter inductor between three voltage potentials, a positive battery potential, a negative battery potential and a third intermediate and varying AC potential synchronized with the desired output voltage. The invention potentially provides the same performance as that of a multi-level inverter topology approaching an infinite number of DC levels.
摘要翻译：本发明是电力转换拓扑。优选实施例是三相在线不间断电源（UPS）。使用脉冲调制技术和平滑输出滤波电感器，在UPS的每个输出线或相位上形成所需的交流输出电压波形。半导体开关矩阵用于将每个输出滤波电感器的功率转换器侧切换到三个电压电位，正电池电位，负电池电位和第三中间，并与期望的输出电压同步的变化的交流电位。本发明潜在地提供与接近无限数量的DC电平的多电平逆变器拓扑结构相同的性能。

2. 发明申请

US20140376293A1 PARALLELABLE THREE-PHASE PHOTOVOLTAIC POWER CONVERTER 有权
标题翻译：并联三相电力转换器
公开(公告)号：US20140376293A1
公开(公告)日：2014-12-25
申请号：US13926142
申请日：2013-06-25
申请人： Richard Travis West
发明人： Richard Travis West
IPC分类号： H02M7/44
CPC分类号： H02J3/383 , H02M1/126 , H02M7/487 , H02M2001/123 , Y02E10/563
摘要： The invention is a bipolar solar photovoltaic to three-phase AC power converter with a novel non-isolated power conversion topology which allows multiple power converter outputs to be directly paralleled without the need for synchronized switching or galvanic isolation. The invention directly supports a new approach to solar photovoltaic system design wherein a large number of distributed lower power converters are used in lieu of one large central inverter.
摘要翻译：本发明是具有新颖的非隔离功率转换拓扑的双相太阳能光伏到三相交流电力转换器，其允许多个功率转换器输出直接并联，而不需要同步开关或电流隔离。本发明直接支持了一种新的太阳能光伏系统设计方法，其中使用大量分布式低功率转换器来代替一个大型中央逆变器。

3. 发明授权

US07233507B2 Non dissipative snubber circuit with saturable reactor 失效
标题翻译：具有可饱和电抗器的非耗散缓冲电路
公开(公告)号：US07233507B2
公开(公告)日：2007-06-19
申请号：US11131465
申请日：2005-05-18
申请人： Kurt Schenk
发明人： Kurt Schenk
IPC分类号： H02H7/10 , G05F1/10 , H02M3/335
CPC分类号： H02M1/34 , H02M3/155 , H02M2001/346 , Y02B70/1491
摘要： A new type of the passive non-dissipative snubber with a single saturable reactor improves the performance of the boost converter used as a front-end active Power Factor Correction (PFC) in two critical areas: excess voltage stresses caused by high voltage spikes on input high voltage switching transistor of the boost converter is eliminated and EMI noise is much reduced. The high voltage spike energy instead of being dissipated as in a dissipative snubber circuits is recovered resulting in increased conversion efficiency. High voltage spike elimination also allows use of lower voltage rated devices with lower ON resistance, hence further increasing the efficiency of the PFC boost converter.
摘要翻译：具有单个可饱和电抗器的新型无源非耗散缓冲器改善了在两个关键领域中用作前端有源功率因数校正（PFC）的升压转换器的性能：由输入上的高电压尖峰引起的过电压应力升压转换器的高压开关晶体管被消除，并且EMI噪声大大降低。高耗电缓冲电路中消耗的高电压尖峰能量被消耗，从而提高了转换效率。高电压尖峰消除还允许使用具有较低导通电阻的较低额定电压的器件，从而进一步提高PFC升压转换器的效率。

4. 发明授权

US4231026A Battery discharge level detection circuit 失效
标题翻译：电池放电电平检测电路
公开(公告)号：US4231026A
公开(公告)日：1980-10-28
申请号：US941933
申请日：1978-09-13
申请人： James R. Sullivan
发明人： James R. Sullivan
IPC分类号： G01R31/36 , G08B21/00
CPC分类号： G01R31/3665 , Y10S320/18
摘要： A circuit for detecting the discharge level of a long life battery, such as a lithium battery, in which the battery is periodically subjected to an increased load for short durations of time. The periodic increases in load allows the end of battery life to be predicted and detected prior to the time the battery is fully depleted. Forecasting the end of battery life ensures that the battery will have sufficient energy to reliably operate the discharge level detection circuitry before the battery is fully depleted.
摘要翻译：一种用于检测锂电池的长寿命电池的放电水平的电路，其中电池在短时间内周期性地承受增加的负载。负载的周期性增加允许在电池完全耗尽之前预测和检测电池寿命的结束。预测电池寿命的终结可以确保电池在电池完全耗尽之前具有足够的能量来可靠地操作放电电平检测电路。

5. 发明授权

US3748186A Method for filling sealed batteries 失效
标题翻译：填充密封电池的方法
公开(公告)号：US3748186A
公开(公告)日：1973-07-24
申请号：US3748186D
申请日：1971-12-02
申请人： POWER CONVERSION INC
发明人： ROSANSKY M , JAGID B
IPC分类号： H01M2/02 , H01M6/16 , H01M10/34 , H01M10/40 , H01M31/00
CPC分类号： H01M6/16 , H01M10/34 , Y10T29/4911
摘要： A DRY GAS THAT DOES NOT REACT WITH OTHER COMPONENTS OF THE FINISHED BATTERY IS INTRODUCED INTO A BATTERY CASING BY ASSEMBLING THE CASING IN A DRY GAS ATMOSPHERE. THE CASING IS PARTIALLY EVACUATED, AND A LIQUID ELECTROLYTE THAT EXPANDS SUBSTANTIALLY WHEN HEATED IS INTRODUCED. THE CASING IS THEN SEALED IN A GAS TIGHT MANNER. THE RESIDUAL DRY GAS, WHICH PREFERABLY IS DRY AIR, IS COMPRESSED WHEN THE TEMPERATURE RISES PERMITTING THE ELECTROLYTE TO EXPAND WITHOUT LEAKING FROM THE CASING.

6. 发明授权

US08648498B1 Photovoltaic power system with distributed photovoltaic string to polyphase AC power converters 有权
标题翻译：具有分布式光伏串联到多相交流电源转换器的光伏电力系统
公开(公告)号：US08648498B1
公开(公告)日：2014-02-11
申请号：US13680941
申请日：2012-11-19
申请人： Richard Travis West
发明人： Richard Travis West
IPC分类号： H02J3/38 , H02M7/42
CPC分类号： H02J3/383 , H02M7/493 , Y02E10/563 , Y10T307/707
摘要： The invention is a novel photovoltaic power system that uses a number of relatively low-power DC to polyphase AC power converters distributed within the photovoltaic array field. In prior art megawatt-scale systems, typically one or two central power converters would be used for every 1 MW of solar photovoltaic array. With the present invention, 100 distributed power converters may be used per megawatt. The distributed power converters are sized to convert power from one or two series string of crystalline modules or from a greater but limited number of thin-film module strings and in both cases at the highest possible DC and therefore AC grid-tie voltages, with respect to module ratings and local safety code compliance.
摘要翻译：本发明是一种新型光伏电力系统，其使用分布在光伏阵列场内的多个相对低功率的DC至多相AC电力转换器。在现有技术的兆瓦级系统中，通常一个或两个中央功率转换器将用于每1兆瓦的太阳能光伏阵列。通过本发明，每兆瓦可以使用100个分布式电力转换器。分布式电力转换器的大小可以从一个或两个串联串联的晶体模块或从更大但有限数量的薄膜模块串转换功率，并且在两种情况下都以最高可能的直流和交流并网电压来转换到模块评级和本地安全代码合规性。

7. 发明授权

US08643986B2 Bipolar photovoltaic array grounding apparatus and method 有权
标题翻译：双极光伏阵列接地装置及方法
公开(公告)号：US08643986B2
公开(公告)日：2014-02-04
申请号：US13279950
申请日：2011-10-24
申请人： Richard Travis West
发明人： Richard Travis West
IPC分类号： H02H3/00
CPC分类号： H01L31/02021 , Y02E10/50
摘要： The invention is an apparatus and method for safely disconnecting a bipolar photovoltaic array from earth ground under normal static operating conditions. The invention senses the voltage to earth on all three terminals of a bipolar photovoltaic array and uses a set of operable contacts to selectively couple or uncouple the DC neutral point of the array (the center tap) to earth ground. When all three terminals of the bipolar array are within the rated voltage capability of the photovoltaic array the DC neutral point is allowed to float.
摘要翻译：本发明是一种用于在正常静态工作条件下将双极光伏阵列与地面安全断开的装置和方法。本发明感测双极光伏阵列的所有三个端子上的接地电压，并且使用一组可操作触点来选择性地将阵列（中心抽头）的DC中性点耦合到接地。当双极阵列的所有三个端子都在光伏阵列的额定电压能力内时，允许DC中性点浮动。

8. 发明授权

US08344548B2 Photovoltaic power plant with minimized power collection losses 有权
标题翻译：光伏发电厂的集电损耗最小化
公开(公告)号：US08344548B2
公开(公告)日：2013-01-01
申请号：US12723670
申请日：2010-03-14
申请人： Michael Joseph Stern
发明人： Michael Joseph Stern
IPC分类号： H02J1/00 , H02J3/00
CPC分类号： H02J1/10 , H02S10/00 , H02S40/34 , Y02E10/50 , Y10T307/685
摘要： A photovoltaic power plant design is disclosed where a two-tier DC power collection method is used in concert with specific array field geometries and equipment locations to minimize system wiring costs and/or resistive wiring losses.
摘要翻译：公开了一种光伏发电厂设计，其中使用两层直流电力收集方法与特定阵列场几何和设备位置一起使用，以最小化系统布线成本和/或电阻布线损耗。

9. 发明授权

US08310105B2 Centralized islanding protection for distributed renewable energy generators 有权
标题翻译：分布式可再生能源发电机集中孤岛保护
公开(公告)号：US08310105B2
公开(公告)日：2012-11-13
申请号：US13221835
申请日：2011-08-30
申请人： Richard Travis West
发明人： Richard Travis West
IPC分类号： H02J1/00 , H02J3/00
CPC分类号： H02J3/383 , H02J2003/388 , Y02E10/563 , Y10T307/735 , Y10T307/826
摘要： A device and method is disclosed for providing electrical grid-tied power converter anti-islanding protection, which is autonomous to the operation of the power converter. The device can protect any number of paralleled power converters and can independently detect an islanding condition. The method involves actively perturbing the electrical grid at a common point of coupling between converter and grid, observing the effect of the perturbation, comparing the perturbed and non-perturbed grid characteristics and disconnecting the converter from the grid if an island is indicated. Perturbation is accomplished by switching a reactive load or loads onto the grid or by changing a transformer tap.The invention is targeted for solar photovoltaic applications where a number of distributed power converters are used. The invention eliminates the interaction of anti-islanding algorithms between multiple power converters, determines islanding conditions with a greater degree of certainty and reduces current distortion over prior-art anti-islanding methods.
摘要翻译：公开了一种用于提供并网电力转换器防孤岛保护的装置和方法，其独立于电力转换器的操作。该器件可以保护任何数量的并联电源转换器，并且可以独立地检测孤岛状态。该方法包括在转换器和电网之间的耦合的公共点处主动扰乱电网，观察扰动的影响，比较扰动和非扰动的电网特征，并且如果指示岛，则将转换器与电网断开。通过将无功负载或负载切换到电网或通过更换变压器抽头来实现扰动。本发明针对使用多个分布式电力转换器的太阳能光伏应用。本发明消除了多个功率转换器之间的反孤岛算法的相互作用，以更大程度的确定性确定孤岛状态，并减少了比现有技术的抗孤岛化方法的电流失真。

10. 发明授权

US08295049B2 Power converter with linear distribution of heat sources 有权
标题翻译：功率转换器具有线性分布的热源
公开(公告)号：US08295049B2
公开(公告)日：2012-10-23
申请号：US13117796
申请日：2011-05-27
申请人： Richard Travis West
发明人： Richard Travis West
IPC分类号： H05K7/20
CPC分类号： H05K7/209 , H02M7/003 , H05K7/20945
摘要： A power converter design is disclosed with a novel approach to thermal management which enhances the performance and significantly reduces the cost of the converter compared to prior art power converters. The invention minimizes the heating of one power component by another within the power converter and therefore enables the power converter to work at higher power levels. Essentially, the power converter uses a heatsink having a high length to width ratio, a linear array of power components thermally coupled to the heatsink parallel to the long axis of the heatsink and a heat removal system which produces the highest cross sectional thermal flux perpendicular to said long axis. In addition, a number of ancillary thermal management techniques are used to significantly enhance the value of this basic approach.
摘要翻译：公开了一种功率转换器设计，其具有热管理的新颖方法，其与现有技术的功率转换器相比增强了性能并显着降低了转换器的成本。本发明使功率转换器内的另一个功率元件的加热最小化，因此能够使功率转换器以更高功率水平工作。本质上，功率转换器使用具有高长宽比的散热器，热耦合到与散热器的长轴平行的散热器的功率部件的线性阵列和产生垂直于散热片的最高横截面热通量的散热系统说长轴。此外，还使用了一些辅助热管理技术来显着提高这种基本方法的价值。

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