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公开(公告)号：US10511187B2
公开(公告)日：2019-12-17
申请号：US16197139
申请日：2018-11-20
摘要： A sequential extraction control device for use in a 3-phase DC/AC converter. The 3-phase converter has three single-phase DC/AC converters, each controlled by a respective PWM extractor. Duty factor adjustments are made depending on a current portion of an AC power cycle. A sequential regulator causes the PWM extractors to have non-overlapping duty cycles such that extractions of each of the single-phase DC/AC converters is performed in sequence, rather than concurrently. This improves the efficiency in extracting power from the DC power.
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公开(公告)号：US10381840B2
公开(公告)日：2019-08-13
申请号：US15796506
申请日：2017-10-27
摘要： A photovoltaic (PV) power station includes at least one AC power production unit. The AC power production unit includes an energy reservoir that is supplied with DC energy from a DC power generator, such as PV panels. The energy reservoir is used as a buffer to store energy, and improve the efficiency of the PV power station. Whether or not an energy reservoir is used, decoupler devices may be used to prevent power annihilation that can decrease the amount of power delivered by the power station to the grid. In system integration for a PV power station, it is found that the declared rating of DC/AC converter in power grid convention should not be taken as the power conversion capability.
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公开(公告)号：US20180166975A1
公开(公告)日：2018-06-14
申请号：US15838044
申请日：2017-12-11
IPC分类号： H02M1/38 , H02M7/493 , H02M7/5395
CPC分类号： H02M1/38 , H02J3/385 , H02M3/155 , H02M7/48 , H02M7/493 , H02M7/5395 , H02M2001/007 , H02M2007/4822
摘要： A sequential extraction control device for use in a 3-phase DC/AC converter. The 3-phase converter has three single-phase DC/AC converter each controlled by a respective PWM extractor. Duty factor adjustments are made depending on a current portion of an AC power cycle. A sequential regulator causes the PWM extractors to have non-overlapping duty cycles such that extraction of each of the single-phase DC/AC converters is performed in sequence, rather than concurrently. This improves the efficiency in extracting power from the DC power.
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公开(公告)号：US20150195875A1
公开(公告)日：2015-07-09
申请号：US14665829
申请日：2015-03-23
IPC分类号： H05B33/08
CPC分类号： H05B33/0821 , Y02B20/342
摘要： An LED lamp having an operating voltage range within which if the supply voltage is provided within the operating voltage range, the LED lamp produces light in a designed light range, and which has reduced sensitization to ripples. The LED lamp includes a network of passive elements that are structured such that the I-V characteristic curve has a plateau region within the operating voltage range. For instance, a maximum slope of an I-V characteristic curve of the network is shallower within the operating voltage range than the maximum slope of an I-V characteristic curve of the network below the operating voltage range.
摘要翻译： 一种具有工作电压范围的LED灯，其中如果在工作电压范围内提供电源电压，则LED灯在设计的光线范围内产生光，并且其对波纹的敏感性降低。 LED灯包括被构造为使得I-V特性曲线在工作电压范围内具有平稳区域的无源元件网络。 例如，网络的I-V特性曲线的最大斜率在工作电压范围内比在低于工作电压范围的网络的I-V特性曲线的最大斜率更浅。
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公开(公告)号：US08981668B2
公开(公告)日：2015-03-17
申请号：US13791407
申请日：2013-03-08
CPC分类号： H05B37/02 , H05B33/0824 , H05B33/0845
摘要： A demand-side dimmable LED lamp operable on a direct current power source that powers a lighting subsystem. The dimming unit selects a power consumption level of the lighting system. Such selection changes the efficacy of the lighting subsystem such that a reduction in power consumption actually results in improved efficacy. The selecting might, for example, select a particular passive network that includes LEDs within the lighting subsystem. Each passive network may have different I-V characteristics, and result in different L-P characteristics, thereby effecting the improved efficacy at lower powers.
摘要翻译： 可在直流电源上操作的需求侧可调光LED灯，为照明子系统供电。 调光单元选择照明系统的功耗级别。 这种选择改变照明子系统的功效，使得功耗的降低实际上导致改善的功效。 选择可能例如选择在照明子系统内包括LED的特定无源网络。 每个无源网络可能具有不同的I-V特性，并导致不同的L-P特性，从而在较低功率下实现了改进的功效。
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公开(公告)号：US20180069403A1
公开(公告)日：2018-03-08
申请号：US15796534
申请日：2017-10-27
发明人： Geoffrey Wen-Tai Shuy , Wen Tien CHANG , Chang Horang LI , Zhen Hui LEE , Zheng Zhao GUO , Wen Tsung LO
摘要： An energy storage system that comprises an energy reservoir and a system controller. The energy reservoir is charged by DC energy from a DC energy source while discharging DC energy to a DC/AC converter. A system controller regulates the DC energy discharged from the energy reservoir to the DC/AC converter to nearly balance the amount of DC energy charged into the energy reservoir. Because this charging and discharging is nearly balanced, the size of the energy reservoir can be made quite small relative to the amount of charging and discharging. This is advantageous where the flow of charge and discharge is high, as might be the case if the energy reservoir receives charge from all or a substantial portion of a power station, such as a solar power station. With such a controller, the use of an energy reservoir becomes technically feasible even with such large current flows.
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公开(公告)号：US20180069402A1
公开(公告)日：2018-03-08
申请号：US15796506
申请日：2017-10-27
CPC分类号： H02J3/385 , G05F1/67 , H02J3/14 , H02J7/34 , H02J13/0003 , H02M7/66 , H02S40/32 , H02S40/38 , Y02E10/58
摘要： A photovoltaic (PV) power station includes at least one AC power production unit. The AC power production unit includes an energy reservoir that is supplied with DC energy from a DC power generator, such as PV panels. The energy reservoir is used as a buffer to store energy, and improve the efficiency of the PV power station. Whether or not an energy reservoir is used, decoupler devices may be used to prevent power annihilation that can decrease the amount of power delivered by the power station to the grid. In system integration for a PV power station, it is found that the declared rating of DC/AC converter in power grid convention should not be taken as the power conversion capability.
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公开(公告)号：US20140054962A1
公开(公告)日：2014-02-27
申请号：US13910964
申请日：2013-06-05
IPC分类号： H02J1/00
CPC分类号： H02J1/00 , H02J3/32 , H02J3/383 , H02J7/35 , Y02E10/563 , Y02E10/566 , Y02E70/30 , Y10T307/344 , Y10T307/406
摘要： An isolated mid-sized centralized photovoltaic solar station that includes a solar panel subsystem that converts photon energy into electricity, and a battery subsystem an energy reservoir to store electrical energy generated by the solar panel subsystem. A control unit regulates the output of energy from the solar panel system onto a low voltage electrical system that provides electrical power to electricity consuming devices or systems. The electrical system may operate at less than 50 volts thereby make the protection system less expensive. Furthermore, some of the batteries in the station may be mobile, so that they can be transported and used external to the station.
摘要翻译： 一个隔离的中型集中式光伏太阳能站，其中包括将光子能量转换成电力的太阳能电池板子系统，以及电池子系统，用于存储由太阳能电池板子系统产生的电能的能量储存器。 控制单元将来自太阳能面板系统的能量输出调节到向电力消耗装置或系统提供电力的低压电气系统上。 电气系统可以在低于50伏特的情况下工作，从而使保护系统成本更低。 此外，车站中的一些电池可能是移动的，因此它们可以在车站外部运输和使用。
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公开(公告)号：US20130187565A1
公开(公告)日：2013-07-25
申请号：US13791407
申请日：2013-03-08
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , H05B33/0824 , H05B33/0845
摘要： A demand-side dimmable LED lamp operable on a direct current power source that powers a lighting subsystem. The dimming unit selects a power consumption level of the lighting system. Such selection changes the efficacy of the lighting subsystem such that a reduction in power consumption actually results in improved efficacy. The selecting might, for example, select a particular passive network that includes LEDs within the lighting subsystem. Each passive network may have different I-V characteristics, and result in different L-P characteristics, thereby effecting the improved efficacy at lower powers.
摘要翻译： 可在直流电源上操作的需求侧可调光LED灯，为照明子系统供电。 调光单元选择照明系统的功耗级别。 这种选择改变照明子系统的功效，使得功耗的降低实际上导致改善的功效。 选择可能例如选择在照明子系统内包括LED的特定无源网络。 每个无源网络可能具有不同的I-V特性，并导致不同的L-P特性，从而在较低功率下实现了改进的功效。
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公开(公告)号：US10371153B2
公开(公告)日：2019-08-06
申请号：US16124010
申请日：2018-09-06
发明人： Geoffrey Wen-Tai Shuy , Wen Ten Chang , Jau-Dar Liao , Hsin-Chen Lai , Chang-Horang Li , Ming Huei Lu
摘要： Design solutions to mitigate the following four fatal flaws in the conventional pump system design; namely, (1) surprise pump-failure in single pump designs that can result in costly water damage; (2) the threat of fatal high voltage electrocution due to flooding; (3) grid power outage and no energy supply to support the needed pumping power that results in water damage; (4) foil odor from the standing water in the well after a period of low seeping rate with or without activated pumping. The principles described herein can completely mitigate the above four fatal design issues.
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